Whitelist an android application on android 6.0/Marshmallow

Whitelist wont disable doze mode for your app, however can use network and hold wake lock.

Whitelist an android application through code,

boolean isIgnoringBatteryOptimizations = pm.isIgnoringBatteryOptimizations(getPackageName());
if(!isIgnoringBatteryOptimizations){
  Intent intent = new Intent();
  intent.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
  intent.setData(Uri.parse("package:" + getPackageName()));
  startActivityForResult(intent, MY_IGNORE_OPTIMIZATION_REQUEST);
  }
             
             
Check for the result,

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == MY_IGNORE_OPTIMIZATION_REQUEST) {
         PowerManager pm = (PowerManager)getSystemService(Context.POWER_SERVICE);
         boolean isIgnoringBatteryOptimizations = pm.isIgnoringBatteryOptimizations(getPackageName());
         if(isIgnoringBatteryOptimizations){
            // Ignoring battery optimization
         }else{
            // Not ignoring battery optimization
        }
    }
}