Android Wakelock not working when screen is off

Question

I m trying to implement wake lock and wifi lock for a service. More about my scenario in this like: Wakelock implementation in a service . I m acquiring during start and releasing when the service gets destroyed. I want to monitor the battery consumption for my project, though I understand that, this approach is not good. But when my phone screen is off, it is not working. I have enabled the option: Keep Wifi on during sleep. As soon as my screen turns off, my service stops.I m using the snippet :

PowerManager powerManager = (PowerManager)getSystemService(Context.POWER_SERVICE);
wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "My Lock");
if(!wakeLock.isHeld())
{
wakeLock.acquire();
}
Log.d(TAG,"Acquired Wake lock successfully");
wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
wifiLock = wifiManager.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF , "WiFi LockTag");
if(!wifiLock.isHeld())
{
wifiLock.acquire();
}
Log.d(TAG,"Acquired Wifi lock successfully");  

//TO RELEASE

try{
wifiLock.release(); 
}catch(Exception e){
e.printStackTrace();
Log.d(TAG,"Exception while releasing WakeLock :: Can be ignoredd");
}

Any idea of why this is happening ? Thanks in advance!

Answer 1

to protect screen from being lock use this Spinet

public static void unlockTheScreen(Context context) {
    KeyguardManager keyguardManager = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); 
    KeyguardLock keyguardLock =  keyguardManager.newKeyguardLock("TAG");
    keyguardLock.disableKeyguard();     
}

Add below in your wake lock

  wakeLock = powermanager.newWakeLock((PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP ), "TAG");