How to perform any task by my app by pressing power button 5 times in android

Question

I am developing an android app, I need code to perform some tasks in my app when user press power button five times, either app is on or off.

Answer 1

From Android - Count Power button clicks and Start Activity

public class MyReceiver extends BroadcastReceiver {
    static int countPowerOff=0;
    private Activity activity=null;
    public MyReceiver (Activity activity)
    {
    this.activity=activity;
    }
    @Override
    public void onReceive(Context context, Intent intent) {

      Log.v("onReceive", "Power button is pressed.");

      Toast.makeText(context, "power button clicked", Toast.LENGTH_LONG)
             .show();

     if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) 
{
    countPowerOff++;    
} 
else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) 
{
    countPowerOff++;   
      if(countPowerOff==5)
      {
          //do something
       }
    }

}