How to turn off wifi hotspot programmatically in A

问题:

I reference the code to turn on hotspot in Android 8.0 , it is work . But I have no idea about how to disable it

@RequiresApi(api = Build.VERSION_CODES.O)
private void turnOnHotspot(){
    WifiManager manager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);

    manager.startLocalOnlyHotspot(new WifiManager.LocalOnlyHotspotCallback(){

        @Override
        public void onStarted(WifiManager.LocalOnlyHotspotReservation reservation) {
            super.onStarted(reservation);
            Log.d(TAG, "Wifi Hotspot is on now");
        }

        @Override
        public void onStopped() {
            super.onStopped();
            Log.d(TAG, "onStopped: ");
        }

        @Override
        public void onFailed(int reason) {
            super.onFailed(reason);
            Log.d(TAG, "onFailed: ");
        }
    },new Handler());
}

I want to use close() method from LocalOnlyHotspotReservation , but how to get the reservation instance from outside , like reservation.close();

Or any way can disable hotspot in Android 8.0

[Update] I found a way can disable hotspot

wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);

                    Method method = wifiManager.getClass().getDeclaredMethod("cancelLocalOnlyHotspotRequest");
                    method.invoke(wifiManager);

But still have no idea about how to use close.

回答1:

In order to disable it, you need to create a global reference for the WifiManager.LocalOnlyHotspotReservation, assign it in the onSatrted() callback and then close it as follows

private WifiManager.LocalOnlyHotspotReservation mReservation;

private void turnOffHotspot() {
 if (mReservation != null) {
  mReservation.close();
 }
}

You may refer to the following link as follows, it worked for me: How to turn on/off wifi hotspot programmatically in Android 8.0 (Oreo)