Connect android screen

The solution is BroadcastReceiver to call a Activity which when displayed will cause the screen to be turned on and, if necessary, unlocked ). This is done as follows:

public class MeuReceiver extends BroadcastReceiver {

    public void onReceive(Context context, Intent intent) {

        Intent intentParaIniciarAtividade = new Intent(context, MinhaAtividade.class);
        intentParaIniciarAtividade.putBoolean(MinhaAtividade.EXTRA_LIGAR_E_DESTRAVAR_TELA, true);
        context.startActivity(intentParaIniciarAtividade);
    }
}

My Activity.java:

public class MinhaAtividade extends Activity {

    public static final String EXTRA_LIGAR_E_DESTRAVAR_TELA = MinhaAtividade.class.getPackage().getName() + ".LIGAR_E_DESTRAVAR_TELA";

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.layout_minha_atividade);

        if (true == getIntent().getBoolean(EXTRA_LIGAR_E_DESTRAVAR_TELA, false)) {
            // Combinando duas flags: FLAG_TURN_SCREEN_ON e FLAG_DISMISS_KEYGUARD.
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
        }
    }
}

Flags that can be combined in this case depending on the situation:

To unlock the screen: link

To display the Activity in front of the locked screen but without removing the lock: link

To turn on the screen illumination: link

To keep the screen on: link

Important note: For flags to work, the window that Activity displays must be a window that occupies full screen ( full screen ) top of the other activities.

( Information extracted from this answer in SOen ).

The intent that is triggered by android is ACTION_SCREEN_ON .

However, you can not register an intent filter in your manifest for this Intent. You need to register programmatically using the registerReceiver () method.

Just making a fix, to keep the screen switched on you would use the flag FLAG_ALLOW_LOCK_WHILE_SCREEN_ON