transfer values on equipment choosing and calculation routines

.idea/assetWizardSettings.xml

                                 <PersistentState>
                                   <option name="values">
                                     <map>
-                                      <entry key="url" value="file:/$USER_HOME$/AppData/Local/Android/Sdk/icons/material/materialiconsoutlined/save/outline_save_24.xml" />
+                                      <entry key="url" value="file:/$USER_HOME$/AppData/Local/Android/Sdk/icons/material/materialiconsoutlined/calculate/outline_calculate_24.xml" />
                                     </map>
                                   </option>
                                 </PersistentState>
                         </option>
                         <option name="values">
                           <map>
-                            <entry key="assetSourceType" value="FILE" />
-                            <entry key="outputName" value="ic_launcher_round" />
+                            <entry key="outputName" value="ic_icon_calculate" />
                             <entry key="sourceFile" value="Z:\Work\Java Projects\Android\RecurveBowSight\FITA_Target_logo_round.svg" />
                           </map>
                         </option>

.idea/encodings.xml

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   <component name="Encoding">
     <file url="file://$PROJECT_DIR$/app/src/main/java/ch/spherIC/recurvebowsight/database/RBSDatabaseHelper.java" charset="UTF-8" />
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     <file url="file://$PROJECT_DIR$/app/src/main/java/ch/spherIC/recurvebowsight/model/IEntity.java" charset="UTF-8" />
     <file url="PROJECT" charset="UTF-8" />
   </component>

.idea/libraries/Gradle__androidx_databinding_databinding_adapters_7_2_2_aar.xml

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+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Gradle__androidx_databinding_databinding_common_7_2_2.xml

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+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Gradle__androidx_databinding_databinding_runtime_7_2_2_aar.xml

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+  <library name="Gradle: androidx.databinding:databinding-runtime:7.2.2@aar">
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+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/androidx.databinding/databinding-runtime/7.2.2/eb4f228c4a638cd4dd87a3b502fe55afe405ee/databinding-runtime-7.2.2-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/misc.xml

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   <component name="ProjectType">
     <option name="id" value="Android" />
   </component>
+  <component name="VisualizationToolProject">
+    <option name="state">
+      <ProjectState>
+        <option name="scale" value="0.175" />
+      </ProjectState>
+    </option>
+  </component>
 </project>

.idea/modules/app/RecurveBowSight.app.androidTest.iml

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     <orderEntry type="library" scope="TEST" name="Gradle: org.hamcrest:hamcrest-integration:1.3" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: androidx.databinding:databinding-common:7.2.2" level="project" />
     <orderEntry type="library" scope="TEST" name="Gradle: androidx.arch.core:core-common:2.1.0" level="project" />
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     <orderEntry type="library" scope="TEST" name="Gradle: androidx.databinding:viewbinding:7.2.2@aar" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: androidx.databinding:databinding-runtime:7.2.2@aar" level="project" />
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.idea/modules/app/RecurveBowSight.app.main.iml

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       <sourceFolder url="file://$MODULE_DIR$/../../../app/build/generated/ap_generated_sources/debug/out" isTestSource="false" generated="true" />
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.idea/modules/app/RecurveBowSight.app.unitTest.iml

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.idea/workspace.xml

   </component>
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   <component name="XDebuggerManager">
     <breakpoint-manager>
       <breakpoints>
-        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
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-        </line-breakpoint>
         <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
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-        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
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-          <line>51</line>
-          <option name="timeStamp" value="10" />
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-        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
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-          <line>54</line>
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           <line>99</line>
           <line>190</line>
           <option name="timeStamp" value="56" />
         </line-breakpoint>
+        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
+          <url>file://$PROJECT_DIR$/app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightFragment.java</url>
+          <line>53</line>
+          <option name="timeStamp" value="58" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
+          <url>file://$USER_HOME$/AppData/Local/Android/Sdk/sources/android-32/android/widget/TextView.java</url>
+          <line>6178</line>
+          <option name="timeStamp" value="68" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
+          <url>file://$PROJECT_DIR$/app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightParametersFragment.java</url>
+          <line>169</line>
+          <option name="timeStamp" value="74" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" suspend="THREAD" type="java-line">
+          <url>file://$PROJECT_DIR$/app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightParametersFragment.java</url>
+          <line>208</line>
+          <option name="timeStamp" value="75" />
+        </line-breakpoint>
       </breakpoints>
     </breakpoint-manager>
     <watches-manager>
       <configuration name="app">
-        <watch expression="this.binding.asRiserSelectionTxt.getAdapter().getCount()" language="JAVA" />
-        <watch expression="this.binding.asSightSelectionTxt.getAdapter().getCount()" language="JAVA" />
         <watch expression="this" />
-        <watch expression="aArcherySetup.getRiser()" language="JAVA" />
-        <watch expression="this.mArcherySetup.getValue().getRiserName()" language="JAVA" />
-        <watch expression="this.binding.asBowPulloutTxt.getText().toString()" language="JAVA" />
+        <watch expression="getViewLifecycleOwner()" language="JAVA" />
+        <watch expression="getParentFragment()" language="JAVA" />
+        <watch expression="getParentFragment().getArguments()" language="JAVA" />
+        <watch expression="this.binding.arrowDiameterTxt.getText().toString().isEmpty()" language="JAVA" />
       </configuration>
     </watches-manager>
   </component>

app/build.gradle

     buildFeatures {
         viewBinding true
     }
+
+    dataBinding {
+        enabled = true
+    }
 }
 
 dependencies {

app/src/main/java/ch/spherIC/recurvebowsight/RBSMainActivity.java

 
 import android.os.Bundle;
 import android.view.Menu;
-import android.view.View;
 
 import com.google.android.material.navigation.NavigationView;
-import com.google.android.material.snackbar.Snackbar;
 
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.splashscreen.SplashScreen;
     protected void onCreate(Bundle savedInstanceState) {
         SplashScreen splashScreen = androidx.core.splashscreen.SplashScreen.installSplashScreen(this);
 
-        try {
-            Thread.sleep(1000);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
         super.onCreate(savedInstanceState);
         binding = ActivityMainBinding.inflate(getLayoutInflater());
         setContentView(binding.getRoot());
-
         setSupportActionBar(binding.appBarMain.toolbar);
-        binding.appBarMain.fab.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View view) {
-                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
-                        .setAction("Action", null).show();
-            }
-        });
+
         DrawerLayout drawer = binding.drawerLayout;
         NavigationView navigationView = binding.navView;
         // Passing each menu ID as a set of Ids because each

app/src/main/java/ch/spherIC/recurvebowsight/logic/CalculationTask.java

+/**
+ * Copyright (C) 2022 - Florindo Smilari (spherIC)
+ */
+package ch.spherIC.recurvebowsight.logic;
+
+import android.os.AsyncTask;
+
+
+/**
+ * @author FC Smilari
+ */
+public class CalculationTask extends AsyncTask<TrajectoryCalculator, Integer, TrajectoryCalculator> {
+
+    private static final Double PHI = 1.0;
+    TrajectoryCalculator calculator;
+
+    @Override
+    protected TrajectoryCalculator doInBackground(final TrajectoryCalculator... params) {
+
+        this.calculator = params[0];
+
+        boolean exitLoop = false;
+        Double angleX = 0.0;
+        Double angleHigh = 0.0;
+        Double angleLow = this.calculator.getStartAngle() + PHI;
+        Double[][] results;
+        Double frictionCoefficient = this.calculator.calculateFrictionCoeficient();
+
+        // Startwerte für angleLow und angleHigh berechnen
+        do {
+            angleLow -= PHI;
+            results = this.calculator.calculateTrajectory(angleLow, frictionCoefficient);
+        } while (results[results.length - 1][TrajectoryCalculator.IDX_Y] - this.calculator.getDeltaHeight() > 0);
+
+        angleHigh = angleLow;
+
+        do {
+            angleHigh += PHI;
+            results = this.calculator.calculateTrajectory(angleHigh, frictionCoefficient);
+        } while (results[results.length - 1][TrajectoryCalculator.IDX_Y] - this.calculator.getDeltaHeight() < 0);
+
+
+        // Winkel suchen mit Hilfe der Regula Falsi und Flugbahnberechnungsiterationen
+        do {
+
+            angleX = (angleHigh + angleLow) / 2;
+            results = this.calculator.calculateTrajectory(angleX, frictionCoefficient);
+
+            if (Math.abs(this.calculator.getDeltaHeight() - results[results.length - 1][TrajectoryCalculator.IDX_Y])
+                    > this.calculator.getCalculationPrecision()) {
+
+                if (results[results.length - 1][TrajectoryCalculator.IDX_Y] - this.calculator.getDeltaHeight() < 0) {
+                    angleLow = angleX;
+                } else {
+                    angleHigh = angleX;
+                }
+
+            } else {
+                exitLoop = true;
+            }
+
+        } while (!exitLoop);
+
+        this.calculator.setStartAngle(angleX);
+        this.calculator.setFlightCurve(results);
+        this.calculator.setMaxHCurve(calculateMaxHeight(results));
+
+        publishProgress(0, results.length - 1);
+        sleep(5);
+
+        for (int i = 0; i < results.length; i++) {
+            publishProgress(1, i);
+            sleep(5);
+        }
+
+        return this.calculator;
+    }
+
+    public static Double[] calculateMaxHeight(final Double[][] flightCurve) {
+        Double[] maxHCurve = new Double[]{0d, 0d};
+        Double maxH = 0.0;
+
+        for (int i = 0; i < flightCurve.length; i++) {
+            if (flightCurve[i][TrajectoryCalculator.IDX_Y] > maxH) {
+                maxH = flightCurve[i][TrajectoryCalculator.IDX_Y];
+                maxHCurve[0] = maxH;
+                maxHCurve[1] = flightCurve[i][TrajectoryCalculator.IDX_T];
+            }
+        }
+
+        return maxHCurve;
+    }
+
+    @Override
+    protected void onProgressUpdate(final Integer... values) {
+        super.onProgressUpdate(values);
+        this.calculator.getListener().updateTrajectoryTxtFld(values[0], this.calculator.getFlightCurve()[values[1]], this.calculator.getStartAngle(),
+                this.calculator.getMaxHCurve());
+    }
+
+    @Override
+    protected void onPostExecute(final TrajectoryCalculator calculator) {
+        super.onPostExecute(calculator);
+        calculator.getListener().onCalculationDone(calculator.getFlightCurve(), calculator.getStartAngle(), calculator.getMaxHCurve());
+    }
+
+    private void sleep(final long millis) {
+        try {
+            Thread.sleep(millis);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+}

app/src/main/java/ch/spherIC/recurvebowsight/logic/TrajectoryCalculator.java

+/**
+ * Copyright (C) 2022 - Florindo Smilari (spherIC)
+ */
+package ch.spherIC.recurvebowsight.logic;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import ch.spherIC.recurvebowsight.TrajectoryCalculation;
+
+
+public class TrajectoryCalculator {
+
+    public static final int IDX_T = 0;
+    public static final int IDX_VX = 1;
+    public static final int IDX_VY = 2;
+    public static final int IDX_X = 3;
+    public static final int IDX_Y = 4;
+
+    public static final Double GRAVITY = Double.valueOf(9.81);
+
+    private static final Double CELSIUS_TO_KELVIN = 273.15;
+    private static final Double R_L = 287.058;
+    private static final Double R_D = 461.0;
+    private static final Double PRESS_AIR = 101325.0;
+    private static final Double E_T0 = 611.2;
+    private static final Double T0 = 17.62;
+    private static final Double T1 = 243.12;
+
+    private final Double arrowDiameter;
+    private final Double arrowCw;
+    private final Double arrowWeight;
+    private final Double v0;
+    private final Double distance;
+    private final Double deltaHeight;
+    private final Double airTemperature;
+    private final Double relativeHumidity;
+    private final Double deltaTime;
+    private final Double calculationPrecision;
+    private final TrajectoryCalculation listener;
+
+    private Double[][] flightCurve;
+    private Double startAngle;
+    private Double[] maxHCurve;
+
+
+    /**
+     * Konstruktor.
+     *
+     * @param arrowDiameter
+     * @param arrowCw
+     * @param arrowWeight
+     * @param v0
+     * @param distance
+     * @param deltaHeight
+     * @param airTemperature
+     * @param relativeHumidity
+     * @param deltaTime
+     * @param calculationPrecision
+     * @param listener
+     */
+    public TrajectoryCalculator(final Double arrowDiameter,
+                                final Double arrowCw,
+                                final Double arrowWeight,
+                                final Double v0,
+                                final Double distance,
+                                final Double deltaHeight,
+                                final Double airTemperature,
+                                final Double relativeHumidity,
+                                final Double deltaTime,
+                                final Double calculationPrecision,
+                                final TrajectoryCalculation listener) {
+        super();
+        this.arrowDiameter = arrowDiameter;
+        this.arrowCw = arrowCw;
+        this.arrowWeight = arrowWeight;
+        this.v0 = v0;
+        this.distance = distance;
+        this.deltaHeight = deltaHeight;
+        this.airTemperature = airTemperature;
+        this.relativeHumidity = relativeHumidity;
+        this.deltaTime = deltaTime;
+        this.calculationPrecision = calculationPrecision;
+        this.listener = listener;
+    }
+
+
+    public Double[][] calculateTrajectory(final Double startAngle, final Double frictionCoefficient) {
+
+        List<Double[]> results = new ArrayList<Double[]>();
+        Double angle = Math.toRadians(startAngle);
+        Double vxOld = Math.cos(angle) * this.v0;
+        Double vyOld = Math.sin(angle) * this.v0;
+        Double vxNew = 0d;
+        Double vyNew = 0d;
+        Double xNew = 0d;
+        Double yNew = 0d;
+        Double xOld = 0d;
+        Double yOld = 0d;
+        Double totTime = 0d;
+        Double k = frictionCoefficient; //calculateFrictionCoeficient(this.arrowCw, this.arrowDiameter, this.airTemperature, this.relativeHumidity);
+        Double m = this.arrowWeight;
+        Double[] r1 = new Double[5];
+
+        r1[TrajectoryCalculator.IDX_T] = totTime;
+        r1[TrajectoryCalculator.IDX_VX] = vxOld;
+        r1[TrajectoryCalculator.IDX_VY] = vyOld;
+        r1[TrajectoryCalculator.IDX_X] = xOld;
+        r1[TrajectoryCalculator.IDX_Y] = yOld;
+        results.add(r1);
+
+        while (xNew <= this.distance) {
+
+            vxNew = vxOld + this.deltaTime * -(k / m) * Math.sqrt(vxOld * vxOld + vyOld * vyOld) * vxOld;
+            vyNew = vyOld + this.deltaTime * (-(k / m) * Math.sqrt(vxOld * vxOld + vyOld * vyOld) * vyOld - TrajectoryCalculator.GRAVITY);
+
+            xNew = xOld + this.deltaTime * ((vxOld + vxNew) / 2);
+            yNew = yOld + this.deltaTime * ((vyOld + vyNew) / 2);
+
+            vxOld = vxNew;
+            vyOld = vyNew;
+
+            xOld = xNew;
+            yOld = yNew;
+
+            totTime += this.deltaTime;
+
+            r1 = new Double[5];
+            r1[TrajectoryCalculator.IDX_T] = totTime;
+            r1[TrajectoryCalculator.IDX_VX] = vxOld;
+            r1[TrajectoryCalculator.IDX_VY] = vyOld;
+            r1[TrajectoryCalculator.IDX_X] = xOld;
+            r1[TrajectoryCalculator.IDX_Y] = yOld;
+            results.add(r1);
+        }
+
+        Double[] rLow = results.get(results.size() - 2);
+        Double[] rHigh = results.get(results.size() - 1);
+        if (rLow[IDX_X] < this.distance && rHigh[IDX_X] > this.distance) {
+            Double deltaT1 = rHigh[IDX_T] - rLow[IDX_T];
+            Double deltaVx1 = rHigh[IDX_VX] - rLow[IDX_VX];
+            Double deltaVy1 = rHigh[IDX_VY] - rLow[IDX_VY];
+            Double deltaX1 = rHigh[IDX_X] - rLow[IDX_X];
+            Double deltaY1 = rHigh[IDX_Y] - rLow[IDX_Y];
+
+            Double deltaX2 = this.distance - rLow[IDX_X];
+            Double deltaY2 = deltaY1 * deltaX2 / deltaX1;
+            Double deltaVx2 = deltaVx1 / deltaX1 * deltaX2;
+            Double deltaVy2 = deltaVy1 / deltaY1 * deltaY2;
+            Double deltaT2 = deltaT1 / deltaX1 * deltaX2;
+
+            results.get(results.size() - 1)[IDX_T] = results.get(results.size() - 2)[IDX_T] + deltaT2;
+            results.get(results.size() - 1)[IDX_VX] = results.get(results.size() - 2)[IDX_VX] + deltaVx2;
+            results.get(results.size() - 1)[IDX_VY] = results.get(results.size() - 2)[IDX_VY] + deltaVy2;
+            results.get(results.size() - 1)[IDX_X] = results.get(results.size() - 2)[IDX_X] + deltaX2;
+            results.get(results.size() - 1)[IDX_Y] = results.get(results.size() - 2)[IDX_Y] + deltaY2;
+        }
+
+
+        return results.toArray(new Double[][]{});
+    }
+
+
+    public Double calculateFrictionCoeficient() {
+        return calculateFrictionCoeficient(this.arrowCw, this.arrowDiameter, this.airTemperature, this.relativeHumidity);
+    }
+
+    public Double calculateFrictionCoeficient(final Double arrowCw, final Double arrowDiameter,
+                                              final Double airTemperature, final Double relativeHumidity) {
+
+        Double eW = TrajectoryCalculator.E_T0
+                * Math.pow(Math.E, TrajectoryCalculator.T0 * airTemperature / (TrajectoryCalculator.T1 + airTemperature));
+
+        Double rF = TrajectoryCalculator.R_L
+                / (1 - relativeHumidity * eW / TrajectoryCalculator.PRESS_AIR * (1 - TrajectoryCalculator.R_L / TrajectoryCalculator.R_D));
+        Double airDensity = TrajectoryCalculator.PRESS_AIR / (rF * (airTemperature + TrajectoryCalculator.CELSIUS_TO_KELVIN));
+
+        Double friction = airDensity * arrowCw * (Math.pow(arrowDiameter, 2) / 4 * Math.PI) / 2;
+        return friction;
+    }
+
+
+    public Double getArrowDiameter() {
+        return this.arrowDiameter;
+    }
+
+    public Double getArrowCw() {
+        return this.arrowCw;
+    }
+
+    public Double getArrowWeight() {
+        return this.arrowWeight;
+    }
+
+    public Double getV0() {
+        return this.v0;
+    }
+
+    public Double getDistance() {
+        return this.distance;
+    }
+
+    public Double getDeltaHeight() {
+        return this.deltaHeight;
+    }
+
+    public Double getAirTemperature() {
+        return this.airTemperature;
+    }
+
+    public Double getRelativeHumidity() {
+        return this.relativeHumidity;
+    }
+
+    public Double getDeltaTime() {
+        return this.deltaTime;
+    }
+
+    public Double getCalculationPrecision() {
+        return this.calculationPrecision;
+    }
+
+    public TrajectoryCalculation getListener() {
+        return this.listener;
+    }
+
+    public Double[][] getFlightCurve() {
+        return this.flightCurve;
+    }
+
+    public void setFlightCurve(final Double[][] flightCurve) {
+        this.flightCurve = flightCurve;
+    }
+
+    public Double[] getMaxHCurve() {
+        return this.maxHCurve;
+    }
+
+    public void setMaxHCurve(final Double[] maxHCurve) {
+        this.maxHCurve = maxHCurve;
+    }
+
+    public Double getStartAngle() {
+        return this.startAngle;
+    }
+
+    public void setStartAngle(final Double startAngle) {
+        this.startAngle = startAngle;
+    }
+
+}

app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightFragment.java

 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.ViewModelProvider;
 import androidx.viewpager2.widget.ViewPager2;
 import ch.spherIC.recurvebowsight.R;
 import ch.spherIC.recurvebowsight.databinding.FragmentCalcsightBinding;
-import ch.spherIC.recurvebowsight.model.IArcherySetup;
 
 public class CalculateSightFragment extends Fragment {
 
     private ViewPager2.OnPageChangeCallback pageChangeCallback;
 
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        CalculateSightViewModel galleryViewModel = new ViewModelProvider(this).get(CalculateSightViewModel.class);
         this.binding = FragmentCalcsightBinding.inflate(inflater, container, false);
         View root = this.binding.getRoot();
-
-        if (getArguments() != null && getArguments().containsKey("setup")) {
-            IArcherySetup archerySetup = getArguments().getParcelable("setup");
-            galleryViewModel.setSelectedArcherySetup(archerySetup);
-        }
         return root;
     }
 
             public void onTabReselected(TabLayout.Tab tab) {
             }
         });
+
     }
 
     @Override

app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightParametersFragment.java

  */
 package ch.spherIC.recurvebowsight.ui.calcsight;
 
+import android.app.ProgressDialog;
+import android.content.Context;
 import android.os.Bundle;
+import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.ArrayAdapter;
 import android.widget.AutoCompleteTextView;
+import android.widget.Toast;
+
+import java.text.DecimalFormat;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
 import ch.spherIC.recurvebowsight.R;
+import ch.spherIC.recurvebowsight.TrajectoryCalculation;
 import ch.spherIC.recurvebowsight.databinding.FragmentCalcsightParametersBinding;
+import ch.spherIC.recurvebowsight.logic.CalculationTask;
+import ch.spherIC.recurvebowsight.logic.TrajectoryCalculator;
+import ch.spherIC.recurvebowsight.model.IArcherySetup;
+import ch.spherIC.recurvebowsight.utilities.NoFilterArrayAdapter;
+import ch.spherIC.recurvebowsight.utilities.PlatformUtils;
+
+public class CalculateSightParametersFragment extends Fragment implements TrajectoryCalculation {
 
-public class CalculateSightParametersFragment extends Fragment {
+    private static final double CENTI = 0.01;
+    private static final double MILLI = 0.001;
 
     private FragmentCalcsightParametersBinding binding;
+    private CalculateSightParametersViewModel calculateSightViewModel;
+    private ProgressDialog progressDialog;
 
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        binding = FragmentCalcsightParametersBinding.inflate(inflater, container, false);
+        this.calculateSightViewModel = new ViewModelProvider(this).get(CalculateSightParametersViewModel.class);
+        this.binding = FragmentCalcsightParametersBinding.inflate(inflater, container, false);
         View root = binding.getRoot();
 
+        binding.fabCalculate.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+/*
+                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();
+*/
+                updateModelFromUI();
+                calculate();
+            }
+        });
+
         loadCalculationAccuracies(root);
         loadCalculationTimeIntervals(root);
+        addObservers();
 
         return root;
     }
 
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        if (getParentFragment() != null && getParentFragment().getArguments() != null && getParentFragment().getArguments().containsKey("setup")) {
+            IArcherySetup archerySetup = getParentFragment().getArguments().getParcelable("setup");
+            this.calculateSightViewModel.setSelectedArcherySetup(archerySetup);
+        }
+    }
+
     @Override
     public void onDestroyView() {
         super.onDestroyView();
         binding = null;
     }
 
+    private void addObservers() {
+        DecimalFormat dF = new DecimalFormat("#.#");
+        DecimalFormat dF2 = new DecimalFormat("#.##");
+        DecimalFormat dF3 = new DecimalFormat("#.###");
+        this.calculateSightViewModel.getArrowDiameter().observe(getViewLifecycleOwner(), arrowDiameter -> this.binding.arrowDiameterTxt.setText(arrowDiameter != null ? dF.format(arrowDiameter) : ""));
+        this.calculateSightViewModel.getArrowCw().observe(getViewLifecycleOwner(), arrowCw -> this.binding.arrowCwTxt.setText(arrowCw != null ? dF.format(arrowCw) : ""));
+        this.calculateSightViewModel.getArrowWeight().observe(getViewLifecycleOwner(), arrowWeight -> this.binding.arrowWeightTxt.setText(arrowWeight != null ? dF.format(arrowWeight) : ""));
+        this.calculateSightViewModel.getBowPullout().observe(getViewLifecycleOwner(), bowPullout -> this.binding.bowPulloutTxt.setText(bowPullout != null ? dF.format(bowPullout) : ""));
+        this.calculateSightViewModel.getArrowV0().observe(getViewLifecycleOwner(), arrowV0 -> this.binding.arrowV0Txt.setText(arrowV0 != null ? dF.format(arrowV0) : ""));
+        this.calculateSightViewModel.getHNA().observe(getViewLifecycleOwner(), hNA -> this.binding.hNATxt.setText(hNA != null ? dF.format(hNA) : ""));
+        this.calculateSightViewModel.getNockRaising().observe(getViewLifecycleOwner(), nockRaising -> this.binding.nockRaisingTxt.setText(nockRaising != null ? dF.format(nockRaising) : ""));
+        this.calculateSightViewModel.getBraceHeight().observe(getViewLifecycleOwner(), braceHeight -> this.binding.braceHeightTxt.setText(braceHeight != null ? dF.format(braceHeight) : ""));
+        this.calculateSightViewModel.getAirTemperature().observe(getViewLifecycleOwner(), airTemp -> this.binding.airTemperatureTxt.setText(airTemp != null ? dF.format(airTemp) : ""));
+        this.calculateSightViewModel.getRelativeAirHumidity().observe(getViewLifecycleOwner(), relAirHumidity -> this.binding.airRelativeHumidityTxt.setText(relAirHumidity != null ? dF.format(relAirHumidity) : ""));
+        this.calculateSightViewModel.getShootingDistance().observe(getViewLifecycleOwner(), shootingDistance -> this.binding.shootingDistanzTxt.setText(shootingDistance != null ? dF.format(shootingDistance) : ""));
+        this.calculateSightViewModel.getArrowNockHeight().observe(getViewLifecycleOwner(), arrowNockHeight -> this.binding.arrowNockHeightTxt.setText(arrowNockHeight != null ? dF2.format(arrowNockHeight) : ""));
+        this.calculateSightViewModel.getTargetCenterHeight().observe(getViewLifecycleOwner(), targetCenterHeight -> this.binding.targetCenterHeightTxt.setText(targetCenterHeight != null ? dF2.format(targetCenterHeight) : ""));
+        this.calculateSightViewModel.getDeltaTime().observe(getViewLifecycleOwner(), deltaTime -> this.binding.deltaTimeTxt.setText(deltaTime != null ? dF3.format(deltaTime) : ""));
+        this.calculateSightViewModel.getCalcPrecision().observe(getViewLifecycleOwner(), calcPrecision -> this.binding.calcPrecisionTxt.setText(calcPrecision != null ? dF.format(calcPrecision) : ""));
+    }
+
+    private void updateModelFromUI() {
+        this.calculateSightViewModel.setArrowDiameter(PlatformUtils.parseDouble(this.binding.arrowDiameterTxt.getText().toString()));
+        this.calculateSightViewModel.setArrowCw(PlatformUtils.parseDouble(this.binding.arrowCwTxt.getText().toString()));
+        this.calculateSightViewModel.setArrowWeight(PlatformUtils.parseDouble(this.binding.arrowWeightTxt.getText().toString()));
+        this.calculateSightViewModel.setArrowV0(PlatformUtils.parseDouble(this.binding.arrowV0Txt.getText().toString()));
+        this.calculateSightViewModel.setBowPullout(PlatformUtils.parseDouble(this.binding.bowPulloutTxt.getText().toString()));
+        this.calculateSightViewModel.setHNA(PlatformUtils.parseDouble(this.binding.hNATxt.getText().toString()));
+        this.calculateSightViewModel.setNockRaising(PlatformUtils.parseDouble(this.binding.nockRaisingTxt.getText().toString()));
+        this.calculateSightViewModel.setBraceHeight(PlatformUtils.parseDouble(this.binding.braceHeightTxt.getText().toString()));
+        this.calculateSightViewModel.setAirTemperature(PlatformUtils.parseDouble(this.binding.airTemperatureTxt.getText().toString()));
+        this.calculateSightViewModel.setRelativeAirHumidity(PlatformUtils.parseDouble(this.binding.airRelativeHumidityTxt.getText().toString()));
+        this.calculateSightViewModel.setShootingDistance(PlatformUtils.parseDouble(this.binding.shootingDistanzTxt.getText().toString()));
+        this.calculateSightViewModel.setArrowNockHeight(PlatformUtils.parseDouble(this.binding.arrowNockHeightTxt.getText().toString()));
+        this.calculateSightViewModel.setTargetCenterHeight(PlatformUtils.parseDouble(this.binding.targetCenterHeightTxt.getText().toString()));
+        this.calculateSightViewModel.setDeltaTime(PlatformUtils.parseDouble(this.binding.deltaTimeTxt.getText().toString()));
+        this.calculateSightViewModel.setCalcPrecision(PlatformUtils.parseDouble(this.binding.calcPrecisionTxt.getText().toString()));
+    }
+
     private void loadCalculationAccuracies(View root) {
         String[] accuracies = root.getResources().getStringArray(R.array.CalculationAccuracies);
-        ArrayAdapter<String> adapter = new ArrayAdapter<String>(root.getContext(), android.R.layout.simple_dropdown_item_1line, accuracies);
+        ArrayAdapter<String> adapter = new NoFilterArrayAdapter<String>(root.getContext(), android.R.layout.simple_dropdown_item_1line, accuracies);
         AutoCompleteTextView textView = root.findViewById(R.id.calcPrecisionTxt);
         textView.setAdapter(adapter);
     }
 
     private void loadCalculationTimeIntervals(View root) {
         String[] timeDeltas = root.getResources().getStringArray(R.array.CalculationTimeIntervals);
-        ArrayAdapter<String> adapter = new ArrayAdapter<String>(root.getContext(), android.R.layout.simple_dropdown_item_1line, timeDeltas);
+        ArrayAdapter<String> adapter = new NoFilterArrayAdapter<String>(root.getContext(), android.R.layout.simple_dropdown_item_1line, timeDeltas);
         AutoCompleteTextView textView = root.findViewById(R.id.deltaTimeTxt);
         textView.setAdapter(adapter);
     }
+
+    /**
+     * Startet die Berechnung wenn alle notwendigen Felder gefüllt sind.
+     */
+    private void calculate() {
+        if (allParamFieldsValid()) {
+            Context context = this.binding.getRoot().getContext();
+            InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.hideSoftInputFromWindow(this.binding.getRoot().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
+
+            this.progressDialog = ProgressDialog.show(binding.getRoot().getContext(), null, getResources().getString(R.string.caption_Calculating), true, false);
+
+            CalculationTask calcTask = new CalculationTask();
+            TrajectoryCalculator calculator = new TrajectoryCalculator(
+                    Double.valueOf(this.binding.arrowDiameterTxt.getText().toString().trim()) * MILLI,
+                    Double.valueOf(this.binding.arrowCwTxt.getText().toString().trim()),
+                    Double.valueOf(this.binding.arrowWeightTxt.getText().toString().trim()) * MILLI,
+                    Double.valueOf(this.binding.arrowV0Txt.getText().toString().trim()),
+                    Double.valueOf(this.binding.shootingDistanzTxt.getText().toString().trim()),
+                    Double.valueOf(this.binding.targetCenterHeightTxt.getText().toString().trim())
+                            - Double.valueOf(this.binding.arrowNockHeightTxt.getText().toString().trim()),
+                    Double.valueOf(this.binding.airTemperatureTxt.getText().toString().trim()),
+                    Double.valueOf(this.binding.airRelativeHumidityTxt.getText().toString().trim()) * CENTI,
+                    Double.valueOf(this.binding.deltaTimeTxt.getText().toString().trim()),
+                    Double.valueOf(this.binding.calcPrecisionTxt.getText().toString().trim()) * CENTI,
+                    this);
+            calculator.setStartAngle(0d);
+            calcTask.execute(calculator);
+
+        } else {
+            Toast toast = Toast.makeText(binding.getRoot().getContext(), getResources().getString(R.string.caption_FillAllMandatoryFields), Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER, 0, 0);
+            toast.show();
+        }
+    }
+
+    private boolean allParamFieldsValid() {
+        return !this.binding.arrowDiameterTxt.getText().toString().isEmpty()
+                && !this.binding.arrowCwTxt.getText().toString().isEmpty()
+                && !this.binding.arrowWeightTxt.getText().toString().isEmpty()
+                && !this.binding.bowPulloutTxt.getText().toString().isEmpty()
+                && !this.binding.arrowV0Txt.getText().toString().isEmpty()
+                && !this.binding.hNATxt.getText().toString().isEmpty()
+                && !this.binding.nockRaisingTxt.getText().toString().isEmpty()
+                && !this.binding.braceHeightTxt.getText().toString().isEmpty()
+                && !this.binding.airTemperatureTxt.getText().toString().isEmpty()
+                && !this.binding.airRelativeHumidityTxt.getText().toString().isEmpty()
+                && !this.binding.shootingDistanzTxt.getText().toString().isEmpty()
+                && !this.binding.arrowNockHeightTxt.getText().toString().isEmpty()
+                && !this.binding.targetCenterHeightTxt.getText().toString().isEmpty()
+                && !this.binding.deltaTimeTxt.getText().toString().isEmpty()
+                && !this.binding.calcPrecisionTxt.getText().toString().isEmpty()
+                && allSightParamFieldsValid();
+    }
+
+    private boolean allSightParamFieldsValid() {
+        /*return !this.scVvisHTxtFld.getText().toString().isEmpty()
+                && !this.scVvisVTxtFld.getText().toString().isEmpty()
+                && !this.scaHTxtFld.getText().toString().isEmpty()
+                && !this.scaVTxtFld.getText().toString().isEmpty()
+                && !this.scVertScaleRngTxtFld.getText().toString().isEmpty()
+                && !this.scPointerOffsetTxtFld.getText().toString().isEmpty()
+                && ((this.scHeVSSpinner.getVisibility() == View.VISIBLE && this.scHeVSSpinner.getSelectedItem() != null)
+                || (this.scHeVSTxtFld.getVisibility() == View.VISIBLE && !this.scHeVSTxtFld.getText().toString().isEmpty()))
+                && !this.scVertScaleMiddleTxtFld.getText().toString().isEmpty();
+    */
+        return true;
+    }
+
+    @Override
+    public void updateTrajectoryTxtFld(Integer step, Double[] flightCurveRow, Double startAngle, Double[] maxHCurve) {
+
+    }
+
+    @Override
+    public void onCalculationDone(Double[][] flightCurve, Double startAngle, Double[] maxHCurve) {
+        if (this.progressDialog != null) {
+            this.progressDialog.dismiss();
+        }
+
+        //TODO: Remove toast when result fragments are done
+        Toast toast = Toast.makeText(binding.getRoot().getContext(), "Abschusswinkel: " + startAngle, Toast.LENGTH_LONG);
+        toast.setGravity(Gravity.CENTER, 0, 0);
+        toast.show();
+
+    }
 }

app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightParametersViewModel.java

+/**
+ * Copyright (C) 2022 - Florindo Smilari (spherIC)
+ */
+package ch.spherIC.recurvebowsight.ui.calcsight;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+import ch.spherIC.recurvebowsight.model.IArcherySetup;
+
+public class CalculateSightParametersViewModel extends ViewModel {
+
+    private final MutableLiveData<IArcherySetup> mSelectedArcherySetup;
+    private final MutableLiveData<Double> mArrowDiameter;
+    private final MutableLiveData<Double> mArrowCw;
+    private final MutableLiveData<Double> mArrowWeight;
+    private final MutableLiveData<Double> mBowPullout;
+    private final MutableLiveData<Double> mArrowV0;
+    private final MutableLiveData<Double> mHNA;
+    private final MutableLiveData<Double> mNockRaising;
+    private final MutableLiveData<Double> mBraceHeight;
+    private final MutableLiveData<Double> mAirTemperature;
+    private final MutableLiveData<Double> mRelativeAirHumidity;
+    private final MutableLiveData<Double> mShootingDistance;
+    private final MutableLiveData<Double> mArrowNockHeight;
+    private final MutableLiveData<Double> mTargetCenterHeight;
+    private final MutableLiveData<Double> mDeltaTime;
+    private final MutableLiveData<Double> mCalcPrecision;
+
+    public CalculateSightParametersViewModel() {
+        this.mSelectedArcherySetup = new MutableLiveData<>();
+        this.mArrowDiameter = new MutableLiveData<>();
+        this.mArrowCw = new MutableLiveData<>();
+        this.mArrowWeight = new MutableLiveData<>();
+        this.mBowPullout = new MutableLiveData<>();
+        this.mArrowV0 = new MutableLiveData<>();
+        this.mHNA = new MutableLiveData<>();
+        this.mNockRaising = new MutableLiveData<>();
+        this.mBraceHeight = new MutableLiveData<>();
+        this.mAirTemperature = new MutableLiveData<>();
+        this.mRelativeAirHumidity = new MutableLiveData<>();
+        this.mShootingDistance = new MutableLiveData<>();
+        this.mArrowNockHeight = new MutableLiveData<>();
+        this.mTargetCenterHeight = new MutableLiveData<>();
+        this.mDeltaTime = new MutableLiveData<>();
+        this.mCalcPrecision = new MutableLiveData<>();
+
+        this.mArrowDiameter.setValue(null);
+        this.mArrowCw.setValue(null);
+        this.mArrowWeight.setValue(null);
+        this.mBowPullout.setValue(null);
+        this.mArrowV0.setValue(null);
+        this.mHNA.setValue(null);
+        this.mNockRaising.setValue(null);
+        this.mBraceHeight.setValue(null);
+        this.mAirTemperature.setValue(null);
+        this.mRelativeAirHumidity.setValue(null);
+        this.mShootingDistance.setValue(null);
+        this.mArrowNockHeight.setValue(null);
+        this.mTargetCenterHeight.setValue(null);
+        this.mDeltaTime.setValue(null);
+        this.mCalcPrecision.setValue(null);
+    }
+
+    public void setSelectedArcherySetup(IArcherySetup aSelectedArcherySetup) {
+        this.mSelectedArcherySetup.setValue(aSelectedArcherySetup);
+        this.mArrowDiameter.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getArrowDiameter() : null);
+        this.mArrowCw.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getArrowCw() : null);
+        this.mArrowWeight.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getArrowWeight() : null);
+        this.mBowPullout.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getBowPullout() : null);
+        this.mArrowV0.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getArrowV0() : null);
+        this.mHNA.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getHNA() : null);
+        this.mNockRaising.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getNockRaising() : null);
+        this.mBraceHeight.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getBraceHeight() : null);
+        this.mArrowNockHeight.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getArrowNockHeight() : null);
+        this.mTargetCenterHeight.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getTargetCenterHeight() : null);
+        this.mDeltaTime.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getDeltaTime() : null);
+        this.mCalcPrecision.setValue(aSelectedArcherySetup != null ? aSelectedArcherySetup.getCalcPrecision() : null);
+    }
+
+    public void setArrowDiameter(Double aArrowDiameter) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setArrowDiameter(aArrowDiameter);
+        }
+        this.mArrowDiameter.setValue(aArrowDiameter);
+    }
+
+    public void setArrowCw(Double aArrowCw) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setArrowCw(aArrowCw);
+        }
+        this.mArrowCw.setValue(aArrowCw);
+    }
+
+    public void setArrowWeight(Double aArrowWeight) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setArrowWeight(aArrowWeight);
+        }
+        this.mArrowWeight.setValue(aArrowWeight);
+    }
+
+    public void setBowPullout(Double aBowPullout) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setBowPullout(aBowPullout);
+        }
+        this.mBowPullout.setValue(aBowPullout);
+    }
+
+    public void setArrowV0(Double aArrowV0) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setArrowV0(aArrowV0);
+        }
+        this.mArrowV0.setValue(aArrowV0);
+    }
+
+    public void setHNA(Double aHNA) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setHNA(aHNA);
+        }
+        this.mHNA.setValue(aHNA);
+    }
+
+    public void setNockRaising(Double aNockRaising) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setNockRaising(aNockRaising);
+        }
+        this.mNockRaising.setValue(aNockRaising);
+    }
+
+    public void setBraceHeight(Double aBraceHeight) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setBraceHeight(aBraceHeight);
+        }
+        this.mBraceHeight.setValue(aBraceHeight);
+    }
+
+    public void setAirTemperature(Double aAirTemperature) {
+        this.mAirTemperature.setValue(aAirTemperature);
+    }
+
+    public void setRelativeAirHumidity(Double aRelativeAirHumidity) {
+        this.mRelativeAirHumidity.setValue(aRelativeAirHumidity);
+    }
+
+    public void setShootingDistance(Double aShootingDistance) {
+        this.mShootingDistance.setValue(aShootingDistance);
+    }
+
+    public void setArrowNockHeight(Double aArrowNockHeight) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setArrowNockHeight(aArrowNockHeight);
+        }
+        this.mArrowNockHeight.setValue(aArrowNockHeight);
+    }
+
+    public void setTargetCenterHeight(Double aTargetCenterHeight) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setTargetCenterHeight(aTargetCenterHeight);
+        }
+        this.mTargetCenterHeight.setValue(aTargetCenterHeight);
+    }
+
+
+    public void setDeltaTime(Double aDeltaTime) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setDeltaTime(aDeltaTime);
+        }
+        this.mDeltaTime.setValue(aDeltaTime);
+    }
+
+    public void setCalcPrecision(Double aCalcPrecision) {
+        if (this.mSelectedArcherySetup.getValue() != null) {
+            this.mSelectedArcherySetup.getValue().setCalcPrecision(aCalcPrecision);
+        }
+        this.mCalcPrecision.setValue(aCalcPrecision);
+    }
+
+    public IArcherySetup getSelectedArcherySetup() {
+        return mSelectedArcherySetup.getValue();
+    }
+
+    public LiveData<Double> getArrowDiameter() {
+        return this.mArrowDiameter;
+    }
+
+    public LiveData<Double> getArrowCw() {
+        return this.mArrowCw;
+    }
+
+    public LiveData<Double> getArrowWeight() {
+        return this.mArrowWeight;
+    }
+
+    public LiveData<Double> getBowPullout() {
+        return this.mBowPullout;
+    }
+
+    public LiveData<Double> getArrowV0() {
+        return this.mArrowV0;
+    }
+
+    public LiveData<Double> getHNA() {
+        return this.mHNA;
+    }
+
+    public LiveData<Double> getNockRaising() {
+        return this.mNockRaising;
+    }
+
+    public LiveData<Double> getBraceHeight() {
+        return this.mBraceHeight;
+    }
+
+    public LiveData<Double> getAirTemperature() {
+        return this.mAirTemperature;
+    }
+
+    public LiveData<Double> getRelativeAirHumidity() {
+        return this.mRelativeAirHumidity;
+    }
+
+    public LiveData<Double> getShootingDistance() {
+        return this.mShootingDistance;
+    }
+
+    public LiveData<Double> getArrowNockHeight() {
+        return this.mArrowNockHeight;
+    }
+
+    public LiveData<Double> getTargetCenterHeight() {
+        return this.mTargetCenterHeight;
+    }
+
+    public LiveData<Double> getDeltaTime() {
+        return this.mDeltaTime;
+    }
+
+    public LiveData<Double> getCalcPrecision() {
+        return this.mCalcPrecision;
+    }
+
+}

app/src/main/java/ch/spherIC/recurvebowsight/ui/calcsight/CalculateSightViewModel.java

-/**
- * Copyright (C) 2022 - Florindo Smilari (spherIC)
- */
-package ch.spherIC.recurvebowsight.ui.calcsight;
-
-import android.text.TextUtils;
-
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-import ch.spherIC.recurvebowsight.model.IArcherySetup;
-
-public class CalculateSightViewModel extends ViewModel {
-
-    private final MutableLiveData<String> mText;
-
-    private IArcherySetup selectedArcherySetup;
-
-    public CalculateSightViewModel() {
-        mText = new MutableLiveData<>();
-        mText.setValue("This is the \"Calc Sight\" fragment for: \n-");
-    }
-
-    public IArcherySetup getSelectedArcherySetup() {
-        return selectedArcherySetup;
-    }
-
-    public void setSelectedArcherySetup(IArcherySetup selectedArcherySetup) {
-        this.selectedArcherySetup = selectedArcherySetup;
-        String setupName = (this.selectedArcherySetup != null && !TextUtils.isEmpty(this.selectedArcherySetup.getName())) ? this.selectedArcherySetup.getName() : "-";
-        mText.setValue("This is the \"Calc Sight\" fragment for: \n" + setupName);
-    }
-
-
-    public LiveData<String> getText() {
-        return mText;
-    }
-}

app/src/main/res/drawable/ic_icon_calculate.xml

+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M19,3H5C3.9,3 3,3.9 3,5v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2V5C21,3.9 20.1,3 19,3zM19,19H5V5h14V19z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M6.25,7.72h5v1.5h-5z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M13,15.75h5v1.5h-5z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M13,13.25h5v1.5h-5z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M8,18l1.5,0l0,-2l2,0l0,-1.5l-2,0l0,-2l-1.5,0l0,2l-2,0l0,1.5l2,0z"/>
+    <path android:fillColor="@android:color/white" android:pathData="M14.09,10.95l1.41,-1.41l1.41,1.41l1.06,-1.06l-1.41,-1.42l1.41,-1.41l-1.06,-1.06l-1.41,1.41l-1.41,-1.41l-1.06,1.06l1.41,1.41l-1.41,1.42z"/>
+</vector>

app/src/main/res/layout/activity_equipment_configuration.xml

             <LinearLayout
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
+                android:layout_marginEnd="8dp"
+                android:layout_marginStart="8dp"
                 android:layout_marginTop="24dp"
                 android:orientation="horizontal"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/asSightHorzSetting">
 
                 <Button
-                    android:id="@+id/archerystpcfg_button_new"
+                    android:id="@+id/archerystpcfg_button_delete"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:text="@string/caption_New"
-                    app:icon="@drawable/ic_icon_add"
+                    android:paddingLeft="4dp"
+                    android:paddingRight="4dp"
+                    android:text="@string/caption_Delete"
+                    android:textSize="12sp"
+                    app:icon="@drawable/ic_icon_delete"
                     app:iconPadding="-8dp" />
 
                 <Button
-                    android:id="@+id/archerystpcfg_button_delete"
+                    android:id="@+id/archerystpcfg_button_new"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:paddingLeft="4dp"
-                    android:paddingRight="4dp"
-                    android:text="@string/caption_Delete"
-                    app:icon="@drawable/ic_icon_delete"
+                    android:text="@string/caption_New"
+                    android:textSize="12sp"
+                    app:icon="@drawable/ic_icon_add"
                     app:iconPadding="-8dp" />
 
                 <Button
                     android:id="@+id/archerystpcfg_button_save"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:paddingLeft="4dp"
-                    android:paddingRight="4dp"
+                    android:paddingHorizontal="4dp"
                     android:text="@string/caption_Save"
+                    android:textSize="12sp"
                     app:icon="@drawable/ic_icon_save"
-                    app:iconPadding="0dp" />
+                    app:iconPadding="-8dp" />
 
             </LinearLayout>
 

app/src/main/res/layout/activity_riser_configuration.xml

             <LinearLayout
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
+                android:layout_marginEnd="8dp"
+                android:layout_marginStart="8dp"
                 android:layout_marginTop="24dp"
                 android:orientation="horizontal"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/rcVvisVLayout">
 
                 <Button
-                    android:id="@+id/risercfg_button_new"
+                    android:id="@+id/risercfg_button_delete"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:text="@string/caption_New"
-                    app:icon="@drawable/ic_icon_add"
+                    android:paddingLeft="4dp"
+                    android:paddingRight="4dp"
+                    android:text="@string/caption_Delete"
+                    android:textSize="12sp"
+                    app:icon="@drawable/ic_icon_delete"
                     app:iconPadding="-8dp" />
 
                 <Button
-                    android:id="@+id/risercfg_button_delete"
+                    android:id="@+id/risercfg_button_new"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:paddingLeft="4dp"
-                    android:paddingRight="4dp"
-                    android:text="@string/caption_Delete"
-                    app:icon="@drawable/ic_icon_delete"
+                    android:text="@string/caption_New"
+                    android:textSize="12sp"
+                    app:icon="@drawable/ic_icon_add"
                     app:iconPadding="-8dp" />
 
                 <Button
                     android:id="@+id/risercfg_button_save"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:paddingLeft="4dp"
-                    android:paddingRight="4dp"
+                    android:paddingHorizontal="4dp"
                     android:text="@string/caption_Save"
+                    android:textSize="12sp"
                     app:icon="@drawable/ic_icon_save"
-                    app:iconPadding="0dp" />
+                    app:iconPadding="-8dp" />
 
             </LinearLayout>
         </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_sight_configuration.xml

             <LinearLayout
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
+                android:layout_marginEnd="8dp"
+                android:layout_marginStart="8dp"
                 android:layout_marginTop="24dp"
                 android:orientation="horizontal"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/scPointerOffsetLayout">
 
                 <Button
-                    android:id="@+id/sightcfg_button_new"
+                    android:id="@+id/sightcfg_button_delete"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:text="@string/caption_New"
-                    app:icon="@drawable/ic_icon_add"
+                    android:paddingLeft="4dp"
+                    android:paddingRight="4dp"
+                    android:text="@string/caption_Delete"
+                    android:textSize="12sp"
+                    app:icon="@drawable/ic_icon_delete"
                     app:iconPadding="-8dp" />
 
                 <Button
-                    android:id="@+id/sightcfg_button_delete"
+                    android:id="@+id/sightcfg_button_new"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:paddingLeft="4dp"
-                    android:paddingRight="4dp"
-                    android:text="@string/caption_Delete"
-                    app:icon="@drawable/ic_icon_delete"
+                    android:text="@string/caption_New"
+                    android:textSize="12sp"
+                    app:icon="@drawable/ic_icon_add"
                     app:iconPadding="-8dp" />
 
                 <Button
                     android:id="@+id/sightcfg_button_save"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
-                    android:layout_marginHorizontal="8dp"
                     android:layout_weight="1"
-                    android:paddingLeft="4dp"
-                    android:paddingRight="4dp"
+                    android:paddingHorizontal="4dp"
                     android:text="@string/caption_Save"
+                    android:textSize="12sp"
                     app:icon="@drawable/ic_icon_save"
-                    app:iconPadding="0dp" />
+                    app:iconPadding="-8dp" />
 
             </LinearLayout>
 

app/src/main/res/layout/app_bar_main.xml

 
     </com.google.android.material.appbar.AppBarLayout>
 
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_marginBottom="16dp"
-        android:layout_marginEnd="@dimen/fab_margin"
-        app:srcCompat="@android:drawable/ic_dialog_email" />
-
     <include layout="@layout/content_main" />
 
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/fragment_calcsight_parameters.xml

 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/fragment_calcsight_parameters"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:isScrollContainer="true"
                     android:nextFocusDown="@id/calcPrecisionTxt"
                     android:nextFocusForward="@id/calcPrecisionTxt"
                     android:nextFocusRight="@id/calcPrecisionTxt"
+                    android:editable="false"
                     android:singleLine="true" />
             </com.google.android.material.textfield.TextInputLayout>
 
                     android:nextFocusDown="@id/arrowDiameterTxt"
                     android:nextFocusForward="@id/arrowDiameterTxt"
                     android:nextFocusRight="@id/arrowDiameterTxt"
+                    android:editable="false"
                     android:singleLine="true" />
             </com.google.android.material.textfield.TextInputLayout>
 
-
         </androidx.constraintlayout.widget.ConstraintLayout>
     </ScrollView>
 
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fab_calculate"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:layout_marginBottom="8dp"
+        android:layout_marginEnd="8dp"
+        app:fabSize="auto"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:maxImageSize="36dp"
+        app:srcCompat="@drawable/ic_icon_calculate" />
+
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_equipment_add_list.xml

                             android:layout_marginStart="16dp"
                             android:text="@string/caption_MainCfg_Riser_SubText"
                             android:textAppearance="@style/TextAppearance.AppCompat.Medium"
-                            android:textSize="14sp"
+                            android:textSize="12sp"
                             app:layout_constraintBottom_toBottomOf="@+id/riser_image_view"
                             app:layout_constraintEnd_toEndOf="parent"
                             app:layout_constraintStart_toEndOf="@+id/riser_image_view" />
                             android:layout_marginStart="16dp"
                             android:text="@string/caption_MainCfg_Sight_SubText"
                             android:textAppearance="@style/TextAppearance.AppCompat.Medium"
-                            android:textSize="14sp"
+                            android:textSize="12sp"
                             app:layout_constraintBottom_toBottomOf="@+id/sight_image_view"
                             app:layout_constraintEnd_toEndOf="parent"
                             app:layout_constraintStart_toEndOf="@+id/sight_image_view" />
                             android:layout_marginStart="16dp"
                             android:text="@string/caption_MainCfg_ArcerySetup_SubText"
                             android:textAppearance="@style/TextAppearance.AppCompat.Medium"
-                            android:textSize="14sp"
+                            android:textSize="12sp"
                             app:layout_constraintBottom_toBottomOf="@+id/equipment_image_view"
                             app:layout_constraintEnd_toEndOf="parent"
                             app:layout_constraintStart_toEndOf="@+id/equipment_image_view" />

app/src/main/res/layout/fragment_equipment_choose.xml

                         android:layout_height="wrap_content"
                         android:layout_margin="@dimen/text_margin"
                         android:layout_marginStart="16dp"
-                        android:layout_marginTop="20dp"
                         android:text="setup_name"
                         android:textAppearance="@style/TextAppearance.AppCompat.Large"
+                        android:textSize="18sp"
+                        app:layout_constraintBottom_toBottomOf="parent"
                         app:layout_constraintStart_toEndOf="@+id/setup_image_view"
-                        app:layout_constraintTop_toTopOf="parent" />
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintVertical_bias="0.17000002" />
 
                     <TextView
                         android:id="@+id/riser_name"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:layout_marginBottom="20dp"
                         android:layout_marginStart="16dp"
                         android:text="riser_name"
                         android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+                        android:textSize="12sp"
                         app:layout_constraintBottom_toBottomOf="parent"
-                        app:layout_constraintStart_toEndOf="@+id/setup_image_view" />
+                        app:layout_constraintStart_toEndOf="@+id/setup_image_view"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintVertical_bias="0.7" />
 
                     <TextView
                         android:id="@+id/spacer"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:layout_marginBottom="20dp"
                         android:layout_marginStart="10dp"
                         android:text="●"
                         android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+                        android:textSize="12sp"
                         app:layout_constraintBottom_toBottomOf="parent"
-                        app:layout_constraintStart_toEndOf="@+id/riser_name" />
+                        app:layout_constraintStart_toEndOf="@+id/riser_name"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintVertical_bias="0.7" />
 
                     <TextView
                         android:id="@+id/sight_name"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:layout_marginBottom="20dp"
                         android:layout_marginStart="10dp"
                         android:text="sight_name"
                         android:textAppearance="@style/TextAppearance.AppCompat.Medium"
+                        android:textSize="12sp"
                         app:layout_constraintBottom_toBottomOf="parent"
-                        app:layout_constraintStart_toEndOf="@+id/spacer" />
+                        app:layout_constraintStart_toEndOf="@+id/spacer"
+                        app:layout_constraintTop_toTopOf="parent"
+                        app:layout_constraintVertical_bias="0.7" />
 
                     <androidx.cardview.widget.CardView
                         android:id="@+id/setup_image_view"

app/src/main/res/values-de/strings.xml

     <string name="caption_Cfg_DeleteSuccessful">\'%s\' erfolgreich gelöscht!</string>
     <string name="caption_Cfg_SaveSuccessful">\'%s\' erfolgreich gespeichert!</string>
     <string name="caption_Cfg_UpdateSuccessful">\'%s\' erfolgreich geändert!</string>
+    <string name="caption_Calculating">Berechnung läuft&#8230;</string>
 
 
 </resources>

app/src/main/res/values/strings.xml

     <string name="caption_Cfg_DeleteSuccessful">\'%s\' was successfully deleted!</string>
     <string name="caption_Cfg_SaveSuccessful">\'%s\' was saved successfully!</string>
     <string name="caption_Cfg_UpdateSuccessful">\'%s\' was updated successfully!</string>
-
+    <string name="caption_Calculating">Calculating&#8230;</string>
+    
 </resources>