Created
December 10, 2012 13:17
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Custom Activity to mimic "Show Overlay Touches" for devices < 4.0.
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<?xml version="1.0" encoding="utf-8"?> | |
<shape xmlns:android="http://schemas.android.com/apk/res/android" > | |
<corners android:radius="25dp" /> | |
<stroke android:color="#7F00007F" android:width="1dp"/> | |
<solid android:color="#7FFFFFFF" /> | |
</shape> |
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import android.app.Activity; | |
import android.os.Bundle; | |
import android.view.MotionEvent; | |
import android.view.View; | |
import android.widget.ArrayAdapter; | |
import android.widget.ListView; | |
import android.widget.RelativeLayout; | |
public class TouchOverlayDemo extends Activity { | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
final ListView listView = new ListView(this); | |
listView.setAdapter(new MyAdapter()); | |
final View touchOverlay = new View(this); | |
touchOverlay.setBackgroundResource(R.drawable.touch); | |
final RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(50,50); | |
RelativeLayout relativeLayout = new RelativeLayout(this) { | |
public boolean onInterceptTouchEvent(android.view.MotionEvent ev) { | |
final int action = ev.getAction(); | |
switch (action & MotionEvent.ACTION_MASK) { | |
case MotionEvent.ACTION_DOWN: | |
touchOverlay.setVisibility(View.VISIBLE); | |
break; | |
case MotionEvent.ACTION_CANCEL: | |
case MotionEvent.ACTION_UP: | |
case MotionEvent.ACTION_POINTER_UP: | |
touchOverlay.setVisibility(View.INVISIBLE); | |
break; | |
} | |
return true; | |
}; | |
@Override | |
public boolean onTouchEvent(MotionEvent event) { | |
params.setMargins((int)event.getX()- 25, (int)event.getY()-25, -50, -50); | |
touchOverlay.setLayoutParams(params); | |
final int action = event.getAction(); | |
switch (action & MotionEvent.ACTION_MASK) { | |
case MotionEvent.ACTION_CANCEL: | |
case MotionEvent.ACTION_UP: | |
case MotionEvent.ACTION_POINTER_UP: | |
touchOverlay.setVisibility(View.INVISIBLE); | |
break; | |
} | |
listView.dispatchTouchEvent(event); | |
return true; | |
} | |
}; | |
relativeLayout.addView(listView); | |
relativeLayout.addView(touchOverlay, params); | |
touchOverlay.setVisibility(View.INVISIBLE); | |
setContentView(relativeLayout); | |
} | |
class MyAdapter extends ArrayAdapter<String> { | |
public MyAdapter() { | |
super(TouchOverlayDemo.this, android.R.layout.simple_list_item_1, android.R.id.text1); | |
} | |
@Override | |
public int getCount() { | |
return 100; | |
} | |
@Override | |
public String getItem(int position) { | |
return "Cell "+(position + 1); | |
} | |
} | |
} |
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