[android-developers] Issue with WindowManager showing UI

Hi,

I have just created this small application which shows simple textview
on receiving incoming call. This app works perfectly on emulator.
Also it works very well when I launch main activity of application and
I receive incoming call.
But now if I restart phone and if I receive incoming call, the
TextView UI won't show up. If I check debug log everything seems
working fine i.e. my broadcast receiver receives event and invokes
function to show UI. But actual UI never shows up.
Now if I again launch application main activity and receive incoming
call, UI shows up properly.

Below is the code snippet:
---------------------------------------------------------------------------------------------------------------------------------------------------
public class IncomingCallReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent arg1) {

TelephonyManager telephony = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);

int callState = telephony.getCallState();

switch (callState) {

case TelephonyManager.CALL_STATE_IDLE: {
Log.d(MainActivity.TAG, "CALL_STATE_IDLE");
hideUI(context) ;
}
break;
case TelephonyManager.CALL_STATE_OFFHOOK: {
Log.d(MainActivity.TAG, "CALL_STATE_OFFHOOK");
hideUI(context) ;
}
break;
case TelephonyManager.CALL_STATE_RINGING: {
Log.d(MainActivity.TAG, "CALL_STATE_RINGING");
showUI(context) ;

}
break;
}

}

private WindowManager mWindowManager;
static View mainView ;

private void showUI(Context context) {

mWindowManager = (WindowManager) context
.getSystemService(Context.WINDOW_SERVICE);

WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_TOAST,
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.OPAQUE);

TextView view = new TextView(context);
view.setText("This is text view do you see it ?");
mainView = view;
mWindowManager.addView(view, lp);

Log.d(MainActivity.TAG, " showUI done");

}
}

----------------------------------------------------------------------------------------------------------------------------------------------------------

Not sure what could be the cause of behavior . Any clues ?

--Tushar

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