I am working on an application that requires to monitor MotionEvents
between activities of the application. It consists of a RootActivity
and a ChildActivity. The RootActivity will open the ChildActivity via
an intent which occurs at the moment the ACTION_DOWN event is
received. However, once the Child Activity is created the RootActivity
is suppose to react to the ACTION_UP that is to follow the ACTION_DOWN
that was used to create the ChildActivity. Below is a snippet of code
to help with the explaination. This code works fine up 1.6 of Android.
However, in 2.0 and above of Android the code no longer works and I am
unable to receive any MotionEvents on the RootActivity once the
ChildActivity has been created.
Questions:
- How can I recieve the corresponding ACTION_UP on the RootActivity
once the ChildActivity has been created?
- Is there any way to know using code the state of the screen to check
if it is being pressed or not?
Code:
public class RootActivity extends Activity implements OnTouchListener
{
private ListView list;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.rootview);
list = (ListView) findViewById(R.id.rootlist);
list.setOnTouchListener(this);
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
// Print Log
return super.dispatchTouchEvent(ev);
}
public boolean onTouch(View v, MotionEvent event) {
switch( event.getAction() ) {
case MotionEvent.ACTION_DOWN:
Intent intent = new Intent(actions.CHILD_ACTIVITY)
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
this.startActivity(inent);
break;
case MotionEvent.ACTION_UP:
//Perform some other action
break;
}
return true;
}
}
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