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OnTouchEvent not working

I am creating an Android application with MapView . I need to respond to a touch touch event. I am trying to handle some actions in onTouchEvent using dispatchTouchEvent . But this onTouchEvent not called! When I add this code to dispatchTouchEvent :

  MarkerOverlay myMarker = new MarkerOverlay(marker,edTxtAlarmClockName.getText().toString()); mapView.getOverlays().add(myMarker); mapView.invalidate();

onTouchEvent . Why is this and how to describe an overlay handler?

 public class MainActivity extends MapActivity implements OnTouchListener{ private MapController mapController; private MapView mapView; private LocationManager locationManager; private MyLocationOverlay myLocationOverlay; private Context context; public GeoPoint lastClickedPoint; Dialog dialog; EditText edTxtAlarmClockName; ToggleButton tbOnOffAlarmClock; boolean reClick ; private int lastTouchX, lastTouchY; private boolean hasMoved = false; Button btnOk; Button btnCancelDelete; Button btnAlarmClockStop; public int distance=50; private int indexOfSelectedOverlay; public void onCreate(Bundle bundle) { super.onCreate(bundle); setContentView(R.layout.activity_main); context = MainActivity.this; // Configure the Map mapView = (MapView) findViewById(R.id.mapview); mapView.setBuiltInZoomControls(true); mapView.setStreetView(true); mapView.setSatellite(true); mapView.setOnTouchListener(this); mapController = mapView.getController(); mapController.setZoom(15); locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60000, 10, geoupdate); myLocationOverlay = new MyLocationOverlay(this, mapView); myLocationOverlay.disableCompass(); myLocationOverlay.enableMyLocation(); mapView.getOverlays().add(myLocationOverlay); myLocationOverlay.runOnFirstFix(new Runnable() { public void run() { mapView.getController().animateTo(myLocationOverlay.getMyLocation()); mapView.setBuiltInZoomControls(true); } }); final Drawable drawable = this.getResources().getDrawable(R.drawable.ic_launcher); dialog = new Dialog(context); dialog.setContentView(R.layout.custom1); dialog.setTitle(R.string.str_new_alarm); tbOnOffAlarmClock=(ToggleButton)dialog.findViewById(R.id.toggleButton1); edTxtAlarmClockName = (EditText) dialog.findViewById(R.id.textView1); edTxtAlarmClockName.setText(R.string.str_name); btnOk = (Button) dialog.findViewById(R.id.btn_ok); btnCancelDelete = (Button) dialog.findViewById(R.id.btn_cancel); btnOk.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { MarkerOverlay myMarker; if (reClick) //click on the overlay {//search and rename myMarker=(MarkerOverlay)mapView.getOverlays().get(indexOfSelectedOverlay); mapView.getOverlays().remove(indexOfSelectedOverlay); myMarker.setName(edTxtAlarmClockName.getText().toString()); mapView.getOverlays().add(myMarker); mapView.invalidate(); } else {//creat overlay myMarker = new MarkerOverlay(drawable,edTxtAlarmClockName.getText().toString()); myMarker.setName(edTxtAlarmClockName.getText().toString()); if (tbOnOffAlarmClock.isChecked()) { myMarker.active=true; } else { myMarker.active=false; } mapView.getOverlays().add(myMarker); mapView.invalidate(); } dialog.dismiss(); } }); btnCancelDelete.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub OverlayItem item; Point itemPoint,currentPoint; MarkerOverlay myOverlay; if (reClick) //delete marker { Log.d("debug","delete"); mapView.getOverlays().remove(indexOfSelectedOverlay); mapView.invalidate(); } //else CANCEL dialog.dismiss(); } }); } @Override protected boolean isRouteDisplayed() { return false; } @Override protected void onDestroy() { super.onDestroy(); locationManager.removeUpdates(geoupdate); } @Override protected void onResume() { super.onResume(); myLocationOverlay.enableMyLocation(); myLocationOverlay.enableCompass(); } @Override protected void onPause() { super.onPause(); myLocationOverlay.disableMyLocation(); myLocationOverlay.disableCompass(); } public class MarkerOverlay extends ItemizedOverlay<OverlayItem> { private Drawable marker = null; private boolean active=true; private GeoPoint pointOfOverlay; private String customName; public List<OverlayItem> items=new ArrayList<OverlayItem>();; public MarkerOverlay(Drawable marker,String name) { super(boundCenterBottom(marker)); this.marker=marker; OverlayItem item = new OverlayItem(lastClickedPoint, name,""); this.pointOfOverlay=lastClickedPoint; this.customName=name; items.add(item); populate(); } public String getName() { return customName; } public void setName(String name) { customName=name; } public GeoPoint getPoint() { return pointOfOverlay; } @Override protected OverlayItem createItem(int i) { return(items.get(i)); } @Override public void draw(Canvas canvas, MapView mapView, boolean shadow) { super.draw(canvas, mapView, shadow); boundCenterBottom(marker); } @Override public int size() { return(items.size()); } @Override public boolean onTouchEvent(MotionEvent motionEvent, MapView mapView) { boolean consumed = super.onTouchEvent(motionEvent,mapView); int action = motionEvent.getAction(); int size; switch (action) { case MotionEvent.ACTION_DOWN: lastTouchX =(int) motionEvent.getX(); lastTouchY =(int) motionEvent.getY(); hasMoved = false; break; case MotionEvent.ACTION_MOVE: hasMoved = moved(motionEvent); break; case MotionEvent.ACTION_UP: if (!moved(motionEvent)) { size = items.size(); if (size > 0) { OverlayItem item = items.get(size - 1); Point p1 = mapView.getProjection().toPixels(item.getPoint(), null); if (hitTest(item, marker, lastTouchX - p1.x, lastTouchY - p1.y)) { dialog.setTitle(item.getTitle()); btnCancelDelete.setText(R.string.str_delete); dialog.show(); reClick=true; } else { edTxtAlarmClockName.setText(R.string.str_name); btnCancelDelete.setText(R.string.str_cancel); dialog.show(); lastClickedPoint = mapView.getProjection().fromPixels((int) motionEvent.getX(), (int) motionEvent.getY()); reClick=false; } populate(); return true; } else { edTxtAlarmClockName.setText(R.string.str_name); dialog.setTitle(R.string.str_new_alarm); btnCancelDelete.setText(R.string.str_cancel); dialog.show(); lastClickedPoint = mapView.getProjection().fromPixels((int) motionEvent.getX(), (int) motionEvent.getY()); reClick=false; } populate(); return true; } } return false||consumed; } private boolean moved(MotionEvent evt) { Log.d("debug", "ontouchevent move"); return hasMoved || Math.abs(evt.getX() - lastTouchX) > 20.0 || Math.abs(evt.getY() - lastTouchY) > 20.0; } } @Override public boolean onTouch (View v, MotionEvent event) { int action = event.getAction(); if (action == MotionEvent.ACTION_UP) { lastClickedPoint= mapView.getProjection().fromPixels( (int) event.getX(), (int) event.getY()); return true; } return false; } @Override public boolean dispatchTouchEvent(MotionEvent motionEvent) { int action = motionEvent.getAction(); Drawable marker = getResources().getDrawable(R.drawable.ic_launcher); switch(action) { case MotionEvent.ACTION_UP: MarkerOverlay myMarker = new MarkerOverlay(marker,edTxtAlarmClockName.getText().toString()); mapView.getOverlays().add(myMarker); mapView.invalidate(); break; } return super.dispatchTouchEvent(motionEvent); } }
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I think you should add onTouchEvents procedures to the touch when creating MapView as a global variable, then you can call the Mapview variable in an overridden onTouch event.

As far as I saw, there is no connection with onTouchEvents initiation

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Source: https://habr.com/ru/post/1435332/

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