Berechnung

src/ch/spherIC/recurvebowsight/RBSMainActivity.java

 import android.app.AlertDialog;
 import android.app.Dialog;
 
+import android.content.Context;
 import android.content.Intent;
 
 import android.os.Bundle;
 import android.view.View.OnClickListener;
 import android.view.View.OnTouchListener;
 
+import android.view.inputmethod.InputMethodManager;
+
 import android.widget.AdapterView;
 
 import android.widget.AdapterView.OnItemSelectedListener;
     @Override
     protected void onRestoreInstanceState(final Bundle savedInstanceState) {
         super.onRestoreInstanceState(savedInstanceState);
-        this.viewFlipper.setDisplayedChild(savedInstanceState.getInt("ViewFlipper.SelectedView", 0));
+
+        int selView = savedInstanceState.getInt("ViewFlipper.SelectedView", 0);
+        this.viewFlipper.setDisplayedChild(selView);
+
+        deactivateAllXTextView();
+        switch (selView) {
+        case 0:
+            xTextViewUp(this.txtViewParams);
+            break;
+        case 1:
+            xTextViewUp(this.txtViewResults);
+            break;
+        case 2:
+            xTextViewUp(this.txtViewSight);
+            break;
+
+        default:
+            break;
+        }
     }
 
     @Override
                 switch (event.getAction()) {
 
                 case MotionEvent.ACTION_DOWN: {
-                    deactivateXTextView(RBSMainActivity.this.txtViewParams);
-                    deactivateXTextView(RBSMainActivity.this.txtViewResults);
-                    deactivateXTextView(RBSMainActivity.this.txtViewSight);
+                    deactivateAllXTextView();
                     xTextViewDown((XTextView) v);
                     return true;
                 }
                 this.viewFlipper.showPrevious();
             }
 
-            deactivateXTextView(RBSMainActivity.this.txtViewParams);
-            deactivateXTextView(RBSMainActivity.this.txtViewResults);
-            deactivateXTextView(RBSMainActivity.this.txtViewSight);
+            deactivateAllXTextView();
 
             switch (this.viewFlipper.getDisplayedChild()) {
             case 0:
 
     }
 
+    private void deactivateAllXTextView() {
+        deactivateXTextView(this.txtViewParams);
+        deactivateXTextView(this.txtViewResults);
+        deactivateXTextView(this.txtViewSight);
+    }
+
     @Override
     protected Dialog onCreateDialog(final int id) {
         return DialogFactory.createDialog(id, this);
 
         if (allParamFieldsValid()) {
 
+            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);
+
             CalculationTask calcTask = new CalculationTask();
             TrajectoryCalculator calculator = new TrajectoryCalculator(Double.valueOf(this.arrowDiameterTxtFld.getText().toString().trim()) * MILLI, //
                                                                        Double.valueOf(this.arrowCwTxtFld.getText().toString().trim()), //