GUI Funktionen (Berechnung)

res/layout/rbs_main.xml

                 android:layout_width="match_parent"
                 android:layout_height="40dp"
                 android:inputType="numberDecimal"
-                android:text="42"
                 android:textSize="18sp"
                 app:txtFont="@string/TitilliumWeb_Regular" />
 
                                 android:layout_width="0dp"
                                 android:layout_height="40dp"
                                 android:ems="10"
+                                android:inputType="numberDecimal"
+                                android:paddingBottom="9dp"
+                                android:paddingTop="9dp"
                                 android:textSize="18sp"
                                 android:visibility="invisible"
                                 app:txtFont="@string/TitilliumWeb_Regular" />
+
                         </LinearLayout>
                     </TableRow>
 

res/values-de/strings.xml

     <string name="caption_Ok">OK</string>
     <string name="caption_Cancel">Abbrechen</string>    
     <string name="caption_NoSelection">Keine Auswahl&#8230;</string>
+    <string name="caption_FillAllMandatoryFields">Um die Berechnung durchzuführen, müssen alle Parameterfelder abgefüllt sein.</string>
     
 </resources>

res/values/strings.xml

     <string name="caption_Ok">OK</string>
     <string name="caption_Cancel">Cancel</string>
     <string name="caption_NoSelection">No selection&#8230;</string>
+    <string name="caption_FillAllMandatoryFields">To start the calculation all parameter fields must be filled.</string>
 
 </resources>

src/ch/spherIC/recurvebowsight/RBSMainActivity.java

 import android.widget.ListView;
 import android.widget.ScrollView;
 import android.widget.TextView;
+import android.widget.Toast;
 import android.widget.ViewFlipper;
 
 import ch.spherIC.recurvebowsight.components.FontArrayAdapter;
     private TextView scaVTxtFld;
     private TextView scaHTxtFld;
     private TextView scVertScaleRngTxtFld;
-    private TextView scVertSkalaMiddleTxtFld;
+    private TextView scVertScaleMiddleTxtFld;
     private TextView scEvSValue;
 
     private IArcherySetup selectedArcherySetup;
 
         List<IRiser> risers = RiserDao.getInstance().loadAll();
         risers.add(0, new Riser(-999, getResources().getString(R.string.caption_NoSelection), "", null, null, null));
-        this.scRiserSpinner.setAdapter(new FontArrayAdapter<IRiser>(this, R.layout.rbs_spinner, risers, this.scRiserSpinner));
+        this.scRiserSpinner.setAdapter(new FontArrayAdapter<IRiser>(this, R.layout.rbs_spinner, risers,
+                                                                    this.scRiserSpinner));
 
         List<ISight> sights = SightDao.getInstance().loadAll();
-        sights.add(0, new Sight(-999, getResources().getString(R.string.caption_NoSelection), "", null, null, "", null, null));
-        this.scSightSpinner.setAdapter(new FontArrayAdapter<ISight>(this, R.layout.rbs_spinner, sights, this.scSightSpinner));
+        sights.add(0,
+                   new Sight(-999, getResources().getString(R.string.caption_NoSelection), "", null, null, "", null, null));
+        this.scSightSpinner.setAdapter(new FontArrayAdapter<ISight>(this, R.layout.rbs_spinner, sights,
+                                                                    this.scSightSpinner));
 
         addRiserAndSightSpinnerListeners();
 
         this.scaVTxtFld = (TextView) findViewById(R.id.scaVTxtFld);
         this.scaHTxtFld = (TextView) findViewById(R.id.scaHTxtFld);
         this.scVertScaleRngTxtFld = (TextView) findViewById(R.id.scVertScaleRngTxtFld);
-        this.scVertSkalaMiddleTxtFld = (TextView) findViewById(R.id.scVertSkalaMiddleTxtFld);
+        this.scVertScaleMiddleTxtFld = (TextView) findViewById(R.id.scVertSkalaMiddleTxtFld);
         this.scEvSValue = (TextView) findViewById(R.id.scEvSValue);
     }
 
         this.scRiserSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
 
                 @Override
-                public void onItemSelected(final AdapterView<?> parent, final View view, final int position, final long id) {
+                public void onItemSelected(final AdapterView<?> parent, final View view, final int position,
+                                           final long id) {
                     IRiser riser = RBSMainActivity.this.scRiserSpinner.getSelectedRiser();
                     if (riser.getId() != -999) {
                         RBSMainActivity.this.scVvisHTxtFld.setText(DF.format(riser.getVVisH()));
         this.scSightSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
 
                 @Override
-                public void onItemSelected(final AdapterView<?> parent, final View view, final int position, final long id) {
+                public void onItemSelected(final AdapterView<?> parent, final View view, final int position,
+                                           final long id) {
                     ISight sight = RBSMainActivity.this.scSightSpinner.getSelectedSight();
                     if (sight.getId() != -999) {
                         List<String> listHeVis = new ArrayList<String>();
                         }
 
                         RBSMainActivity.this.scHeVSTxtFld.setVisibility(View.INVISIBLE);
-                        RBSMainActivity.this.scHeVSTxtFld.setLayoutParams(new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSTxtFld
-                                                                                                        .getLayoutParams().width,
-                                                                                                        RBSMainActivity.this.scHeVSTxtFld
-                                                                                                        .getLayoutParams().height, 0f));
+                        RBSMainActivity.this.scHeVSTxtFld.setLayoutParams(new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSTxtFld.getLayoutParams().width,
+                                                                                                        RBSMainActivity.this.scHeVSTxtFld.getLayoutParams().height,
+                                                                                                        0f));
                         RBSMainActivity.this.scHeVSSpinner.setVisibility(View.VISIBLE);
 
                         LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSSpinner.getLayoutParams().width,
                                                                                          1f);
                         params.gravity = Gravity.FILL_VERTICAL;
                         RBSMainActivity.this.scHeVSSpinner.setLayoutParams(params);
-                        RBSMainActivity.this.scHeVSSpinner.setAdapter(new FontArrayAdapter<String>(RBSMainActivity.this, R.layout.rbs_spinner,
-                                                                                                   listHeVis, RBSMainActivity.this.scHeVSSpinner));
+                        RBSMainActivity.this.scHeVSSpinner.setAdapter(new FontArrayAdapter<String>(RBSMainActivity.this,
+                                                                                                   R.layout.rbs_spinner,
+                                                                                                   listHeVis,
+                                                                                                   RBSMainActivity.this.scHeVSSpinner));
                         RBSMainActivity.this.scHeVSSpinner.setSelection(0);
                         if (RBSMainActivity.this.selectedArcherySetup != null
                             && RBSMainActivity.this.selectedArcherySetup.getSight().getId() == sight.getId()) {
-                            RBSMainActivity.this.scHeVSSpinner.setSelectionByVal(DF.format(RBSMainActivity.this.selectedArcherySetup
-                                                                                           .getSightHorSetting()));
+                            RBSMainActivity.this.scHeVSSpinner.setSelectionByVal(DF.format(RBSMainActivity.this.selectedArcherySetup.getSightHorSetting()));
                         }
                         RBSMainActivity.this.scaVTxtFld.setText(DF.format(sight.getAV()));
                         RBSMainActivity.this.scaHTxtFld.setText(DF.format(sight.getAH()));
                                                                           + DF.format(sight.getVertSkalaRangeMax()));
                     } else {
                         RBSMainActivity.this.scHeVSSpinner.setVisibility(View.INVISIBLE);
-                        RBSMainActivity.this.scHeVSSpinner.setLayoutParams(new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSSpinner
-                                                                                                         .getLayoutParams().width,
-                                                                                                         RBSMainActivity.this.scHeVSSpinner
-                                                                                                         .getLayoutParams().height, 0f));
+                        RBSMainActivity.this.scHeVSSpinner.setLayoutParams(new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSSpinner.getLayoutParams().width,
+                                                                                                         RBSMainActivity.this.scHeVSSpinner.getLayoutParams().height,
+                                                                                                         0f));
                         RBSMainActivity.this.scHeVSTxtFld.setVisibility(View.VISIBLE);
-                        RBSMainActivity.this.scHeVSTxtFld.setLayoutParams(new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSTxtFld
-                                                                                                        .getLayoutParams().width,
-                                                                                                        RBSMainActivity.this.scHeVSTxtFld
-                                                                                                        .getLayoutParams().height, 1f));
-                        RBSMainActivity.this.scHeVSSpinner.setAdapter(new FontArrayAdapter<String>(RBSMainActivity.this, R.layout.rbs_spinner,
+                        RBSMainActivity.this.scHeVSTxtFld.setLayoutParams(new LinearLayout.LayoutParams(RBSMainActivity.this.scHeVSTxtFld.getLayoutParams().width,
+                                                                                                        RBSMainActivity.this.scHeVSTxtFld.getLayoutParams().height,
+                                                                                                        1f));
+                        RBSMainActivity.this.scHeVSSpinner.setAdapter(new FontArrayAdapter<String>(RBSMainActivity.this,
+                                                                                                   R.layout.rbs_spinner,
                                                                                                    new ArrayList<String>(),
                                                                                                    RBSMainActivity.this.scHeVSSpinner));
                         RBSMainActivity.this.scaVTxtFld.setText("");
             showDialog(DLG_CHOOSE_ARCHERYSETUP);
             return true;
 
+        case R.id.doCalculation:
+            calculate();
+            return true;
+
         case R.id.moreItems:
             this.showInfoMenu = true;
             closeOptionsMenu();
                 this.calcAccuracyCboBox.setSelectionByVal(archerySetup.getCalcPrecision().toString());
                 this.scRiserSpinner.setSelectedRiser(archerySetup.getRiser());
                 this.scSightSpinner.setSelectedSight(archerySetup.getSight());
-                this.scVertSkalaMiddleTxtFld.setText(archerySetup.getSightVertSkalaMiddle().toString());
+                this.scVertScaleMiddleTxtFld.setText(archerySetup.getSightVertSkalaMiddle().toString());
             } else {
                 this.arrowDiameterTxtFld.setText("");
                 this.arrowDiameterTxtFld.setText("");
                 this.calcAccuracyCboBox.setSelectionByVal("");
                 this.scRiserSpinner.setSelection(0);
                 this.scSightSpinner.setSelection(0);
-                this.scVertSkalaMiddleTxtFld.setText("");
+                this.scVertScaleMiddleTxtFld.setText("");
             }
         }
     }
+
+    private boolean allParamFieldsValid() {
+
+        return !this.arrowDiameterTxtFld.getText().toString().isEmpty()
+               && !this.arrowCwTxtFld.getText().toString().isEmpty()
+               && !this.arrowWeightTxtFld.getText().toString().isEmpty()
+               && !this.bowPulloutTxtFld.getText().toString().isEmpty()
+               && !this.arrowV0TxtFld.getText().toString().isEmpty()
+               && !this.airTemperatureTxtFld.getText().toString().isEmpty()
+               && !this.airRelativeHumidityTxtFld.getText().toString().isEmpty()
+               && !this.shootingDistanzTxtFld.getText().toString().isEmpty()
+               && !this.arrowNockHeightTxtFld.getText().toString().isEmpty()
+               && !this.targetCenterHeightTxtFld.getText().toString().isEmpty()
+               && this.calcTimeIntervalCboBox.getSelectedItem() != null
+               && this.calcAccuracyCboBox.getSelectedItem() != null
+               && !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.scVertScaleMiddleTxtFld.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();
+    }
+
+    /**
+     * Startet die Berechnung wenn alle notwendigen Felder gefüllt sind.
+     */
+    private void calculate() {
+
+        if (allParamFieldsValid()) {
+            // CALCULATION!!
+        } else {
+            Toast toast = Toast.makeText(this, getResources().getString(R.string.caption_FillAllMandatoryFields), Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER, 0, 0);
+            toast.show();
+        }
+    }
+
+
 }