OnTouchListener return value

Question

I'm trying to understand full the OnTouchListener, but I have some doubts.

I have this xml code:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.pablo.MainActivity"
tools:ignore="MergeRootFrame" >

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Button" />

</LinearLayout>

And I have implemented this code i java:

public class MainActivity extends Activity {

Button b;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    b = (Button)findViewById(R.id.button1);

    b.setOnTouchListener(new OnTouchListener() {
        @Override
        public boolean onTouch(View arg0, MotionEvent arg1) {

            switch (arg1.getAction()) {
            case MotionEvent.ACTION_DOWN:
                Toast.makeText(getBaseContext(), "boton down",Toast.LENGTH_SHORT).show();
                break;
            case MotionEvent.ACTION_UP:
                Toast.makeText(getBaseContext(), "boton up",Toast.LENGTH_SHORT).show();
                break;
            }
            return false;
        }
    });

   }
 }

I have read when I return false in ACTION_DOWN, the rest of the gesture (MOVE and UP) doesn't work. But it works in this code, the "up" message is shown on screen, and it shouldn't. So I don't understand completely what is the meaning of the return value in the OnTouch event.

Can somebody helps me?

Answer 1

Assuming your question is "what does the return value mean on onTouch"?

If you looked at documentation, you would see;

Returns True if the listener has consumed the event, false otherwise.

Have a look at the documentation here.