Starting background service when Android turns on

Question

I need to have ALWAYS a background service that will synchronize my Android application and a server. I know how to launch it through my application, but when the Android tu

Answer 1

use for starting your service when the device turns on.

In AndroidManifest.xml:

Add permission in your AndroidManifest.xml as:

In code part BootBroadcastReceiver:

public class BootBroadcastReceiver extends BroadcastReceiver {     
    static final String ACTION = "android.intent.action.BOOT_COMPLETED";   
    @Override   
    public void onReceive(Context context, Intent intent) {   
        // BOOT_COMPLETED” start Service    
        if (intent.getAction().equals(ACTION)) {   
            //Service    
            Intent serviceIntent = new Intent(context, StartOnBootService.class);       
            context.startService(serviceIntent);   
        }   
    }    
}   

EDIT: if you are talking about device screen on/off then you need to register and for starting your service when user is present or screen is on.