Ontouchlistener In A View - Android

When I am adding a listener 'OnTouchListener' to a View, it doesn't register. Here is my code: GUI gui; boolean guis = true; @Override protected void onCreate(Bundle savedInstance

Solution 1:

You can do the following

publicclassMainActivityextendsActivityimplementsOnTouchListener{
    GUI gui;
@OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
        gui = newGUI(MainActivity.this);
            setContentView(gui);
    gui.setOnTouchListener(this);
}


@OverridepublicbooleanonTouch(View v, MotionEvent event) {
    // TODO Auto-generated method stub
    Log.w("AA","Hello")
    returntrue;
}

Or you can override the onTouch in your gui view

publicclassGUIextendsView{

Context mcontext; 
publicMyView(Context context) {
    super(context);
            mcontext=context; 
}
@OverridepublicbooleanonTouchEvent(MotionEvent event) {
Toast.makeText(mcontext, "View clicked", 1000).show();
switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        // do somethingbreak;
    case MotionEvent.ACTION_MOVE:
        // do somethingbreak;
    case MotionEvent.ACTION_UP:
       //do somethingbreak;
}
returntrue;
}

As Luksprog commented this refer's to the current context.

If you do this gui.setOnTouchListener(this);

Your activity class must implement OnTouchListener and override onTouch method.

You can also Override onTouch in your custom view.

There is no need to implement OnTouchListener in you GUI custom view class if you just override onTouch.