I use this code to start an activity when the power button is pressed 2 or more times but it doesn't work.
Here is my code for MyReceiver.java
:
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class MyReceiver extends BroadcastReceiver {
private static int countPowerOff = 0;
public MyReceiver () {
}
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
Log.e("In on receive", "In Method: ACTION_SCREEN_OFF");
countPowerOff++;
}
else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
Log.e("In on receive", "In Method: ACTION_SCREEN_ON");
}
else if (intent.getAction().equals(Intent.ACTION_USER_PRESENT)) {
Log.e("In on receive", "In Method: ACTION_USER_PRESENT");
if (countPowerOff >= 2)
{
countPowerOff = 0;
Toast.makeText(context, "MAIN ACTIVITY IS BEING CALLED ", Toast.LENGTH_LONG).show();
Intent i = new Intent(context, About.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
context.startActivity(i);
}
}
}
}
And manifest file
:
<receiver android:name="MyReceiver" android:enabled="true"/>
You created a reciever but did not register it.
In your activity's oncreate method register for the receiver
@Override
protected void onCreate() {
// initialize receiver
final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
final BroadcastReceiver mReceiver = new MyReceiver();
registerReceiver(mReceiver, filter);
}
Anyways. You dont need broadcast receiver for Power button press event..
You can use this code
int i = 0;
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if(keyCode == KeyEvent.KEYCODE_POWER)
{
i++;
if(i == 2)
{
// Do something you want
}
}
return super.onKeyDown(keyCode, event);
}