How to dismiss system dialog in Android?

Solution 1:

Please check it

@Override
public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);

        if (! hasFocus) {
            Intent closeDialog = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
            sendBroadcast(closeDialog);
        }
    }

It is working in my code.

Solution 2:

You can use - ACTION_CLOSE_SYSTEM_DIALOGS

Broadcast Action: This is broadcast when a user action should request a temporary system dialog to dismiss.

public static final String ACTION_CLOSE_SYSTEM_DIALOGS

Added in API level 1

Broadcast Action: This is broadcast when a user action should request a temporary system dialog to dismiss. Some examples of temporary system dialogs are the notification window-shade and the recent tasks dialog.

Constant Value: "android.intent.action.CLOSE_SYSTEM_DIALOGS"

This information can be found at android developer site.

Working example-

Android Manifest-

<receiver android:name=".SystemDialogReceiver">
            <intent-filter>
                <action android:name="android.intent.
                 action.CLOSE_SYSTEM_DIALOGS" />
            </intent-filter>
</receiver>

Class file-

class SystemDialogReceiver extends BroadcastReceiver {
        private static final String SYSTEM_DIALOG_REASON_KEY = "reason";
        private static final String 
        SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
        @Override
        public void onReceive(Context context, Intent intent) {

            if(intent.getAction().equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)){
                String dialogType = intent.
                getStringExtra(SYSTEM_DIALOG_REASON_KEY);
                if(dialogType != null && dialogType.
                equals(SYSTEM_DIALOG_REASON_RECENT_APPS)){
                    Intent closeDialog = 
                    new Intent(Intent.
                    ACTION_CLOSE_SYSTEM_DIALOGS);
                    context.sendBroadcast(closeDialog);

                }
            }

        }

    }

Solution 3:

Try using the following:

sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));

Solution 4:

You can use ACTION_CLOSE_SYSTEM_DIALOGS when window focus is lost. But please note that doing so will also prevent user from turning off the phone while your app is running because the Power Off dialog is also a system dialog.