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Android Question turning on Hotspot
- Thread starter mhk1368
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Start Local Hotspot
Starting from Android 8 there is a public API for starting a local hotspot. Notes: - The hotspot doesn't allow internet connection. - The password and SSID are chosen randomly and cannot be changed. - Debug it with USB debug mode as it will break B4A-Bridge connection. Updates: - Project...
www.b4x.com
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hi and thanks erelStart Local Hotspot
Starting from Android 8 there is a public API for starting a local hotspot. Notes: - The hotspot doesn't allow internet connection. - The password and SSID are chosen randomly and cannot be changed. - Debug it with USB debug mode as it will break B4A-Bridge connection. Updates: - Project...
I saw this article, the problem is that the name and password must be fixed and it should not change every time, it should work like the phone's hotspot button, just turning it on is enough for me. It means that the hotspot and internet of the phone should be turned on and the rest should be the same as the previous settings.
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I found this code for java but I don't know how to use it for b4a can anyone help?
link: https://codegrepr.com/question/android-turn-on-off-wifi-hotspot-programmatically/
link: https://codegrepr.com/question/android-turn-on-off-wifi-hotspot-programmatically/
**For Oreo & PIE ** I found below way through this:
private WifiManager.LocalOnlyHotspotReservation mReservation;
private boolean isHotspotEnabled = false;
private final int REQUEST_ENABLE_LOCATION_SYSTEM_SETTINGS = 101;
private boolean isLocationPermissionEnable() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.ACCESS_COARSE_LOCATION}, 2);
return false;
}
return true;
}
@RequiresApi(api = Build.VERSION_CODES.O)
private void turnOnHotspot() {
if (!isLocationPermissionEnable()) {
return;
}
WifiManager manager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (manager != null) {
// Don't start when it started (existed)
manager.startLocalOnlyHotspot(new WifiManager.LocalOnlyHotspotCallback() {
@Override
public void onStarted(WifiManager.LocalOnlyHotspotReservation reservation) {
super.onStarted(reservation);
//Log.d(TAG, "Wifi Hotspot is on now");
mReservation = reservation;
isHotspotEnabled = true;
}
@Override
public void onStopped() {
super.onStopped();
//Log.d(TAG, "onStopped: ");
isHotspotEnabled = false;
}
@Override
public void onFailed(int reason) {
super.onFailed(reason);
//Log.d(TAG, "onFailed: ");
isHotspotEnabled = false;
}
}, new Handler());
}
}
@RequiresApi(api = Build.VERSION_CODES.O)
private void turnOffHotspot() {
if (!isLocationPermissionEnable()) {
return;
}
if (mReservation != null) {
mReservation.close();
isHotspotEnabled = false;
}
}
@RequiresApi(api = Build.VERSION_CODES.O)
private void toggleHotspot() {
if (!isHotspotEnabled) {
turnOnHotspot();
} else {
turnOffHotspot();
}
}
@RequiresApi(api = Build.VERSION_CODES.O)
private void enableLocationSettings() {
LocationRequest mLocationRequest = new LocationRequest();
/*mLocationRequest.setInterval(10);
mLocationRequest.setSmallestDisplacement(10);
mLocationRequest.setFastestInterval(10);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);*/
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
builder.addLocationRequest(mLocationRequest)
.setAlwaysShow(false); // Show dialog
Task<LocationSettingsResponse> task= LocationServices.getSettingsClient(this).checkLocationSettings(builder.build());
task.addOnCompleteListener(task1 -> {
try {
LocationSettingsResponse response = task1.getResult(ApiException.class);
// All location settings are satisfied. The client can initialize location
// requests here.
toggleHotspot();
} catch (ApiException exception) {
switch (exception.getStatusCode()) {
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
// Location settings are not satisfied. But could be fixed by showing the
// user a dialog.
try {
// Cast to a resolvable exception.
ResolvableApiException resolvable = (ResolvableApiException) exception;
// Show the dialog by calling startResolutionForResult(),
// and check the result in onActivityResult().
resolvable.startResolutionForResult(HotspotActivity.this, REQUEST_ENABLE_LOCATION_SYSTEM_SETTINGS);
} catch (IntentSender.SendIntentException e) {
// Ignore the error.
} catch (ClassCastException e) {
// Ignore, should be an impossible error.
}
break;
case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
// Location settings are not satisfied. However, we have no way to fix the
// settings so we won't show the dialog.
break;
}
}
});
}
@RequiresApi(api = Build.VERSION_CODES.O)
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
final LocationSettingsStates states = LocationSettingsStates.fromIntent(data);
switch (requestCode) {
case REQUEST_ENABLE_LOCATION_SYSTEM_SETTINGS:
switch (resultCode) {
case Activity.RESULT_OK:
// All required changes were successfully made
toggleHotspot();
Toast.makeText(HotspotActivity.this,states.isLocationPresent()+"",Toast.LENGTH_SHORT).show();
break;
case Activity.RESULT_CANCELED:
// The user was asked to change settings, but chose not to
Toast.makeText(HotspotActivity.this,"Canceled",Toast.LENGTH_SHORT).show();
break;
default:
break;
}
break;
}
}
UseAge:
btnHotspot.setOnClickListenr(view -> {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// Step 1: Enable the location settings use Google Location Service
// Step 2: https://stackoverflow.com/questions/29801368/how-to-show-enable-location-dialog-like-google-maps/50796199#50796199
// Step 3: If OK then check the location permission and enable hotspot
// Step 4: https://stackoverflow.com/questions/46843271/how-to-turn-off-wifi-hotspot-programmatically-in-android-8-0-oreo-setwifiapen
enableLocationSettings();
return;
}
}
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
implementation 'com.google.android.gms:play-services-location:15.0.1'
We can programmatically turn on and off:
setWifiApDisable.invoke(connectivityManager, TETHERING_WIFI);//Have to disable to enable
setwifiApEnabled.invoke(connectivityManager, TETHERING_WIFI, false, mSystemCallback,null);
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Yes. The same code is implemented here: https://www.b4x.com/android/forum/threads/start-local-hotspot.98664/#content
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This program can turn on the hotspot, but I don't know how it works?
Portable WiFi - Mobile Hotspot - Apps on Google Play
Transform your phone into a personal hotspot with just a few taps!
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I found this code, what is its format in b4a?
work on other APP:
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Build;
import c.i.b.g;
import c.i.b.h;
import com.ertunga.wifihotspot.R;
import com.ertunga.wifihotspot.oreosupport.HotSpotIntentService;
import d.b.c.o.b;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Map;
import java.util.Objects;
public class c implements InvocationHandler {
public final /* synthetic */ b a;
public c(d dVar, b bVar) {
this.a = bVar;
}
public Object invoke(Object obj, Method method, Object[] objArr) {
String name = method.getName();
name.hashCode();
if (name.equals("onTetheringStarted")) {
HotSpotIntentService hotSpotIntentService = ((a) this.a).a;
int i2 = HotSpotIntentService.s;
Objects.requireNonNull(hotSpotIntentService);
int i3 = Build.VERSION.SDK_INT;
if (i3 >= 26) {
NotificationManager notificationManager = (NotificationManager) hotSpotIntentService.getSystemService("notification");
if (notificationManager.getNotificationChannel("control_app") == null) {
NotificationChannel notificationChannel = new NotificationChannel("control_app", hotSpotIntentService.getString(R.string.app_name), 2);
notificationChannel.enableLights(false);
notificationChannel.enableVibration(false);
notificationManager.createNotificationChannel(notificationChannel);
}
}
Intent intent = new Intent(hotSpotIntentService, HotSpotIntentService.class);
intent.setAction(hotSpotIntentService.getString(R.string.intent_action_turnoff));
PendingIntent service = i3 >= 31 ? PendingIntent.getService(hotSpotIntentService, 0, intent, 33554432) : PendingIntent.getService(hotSpotIntentService, 0, intent, 0);
h hVar = new h(hotSpotIntentService, "control_app");
hVar.e(2, true);
hVar.d("WifiHotSpot is On");
hVar.f891b.add(new g(R.drawable.icon_wifi, "TURN OFF HOTSPOT", service));
hVar.f897h = -1;
hVar.f899j = "service";
hVar.n.icon = R.drawable.hotspot;
hotSpotIntentService.startForeground(1338, hVar.a());
return null;
} else if (!name.equals("onTetheringFailed")) {
Map<b.C0064b<?>, Class<?>> map = b.f2178h;
try {
obj.getClass().getMethod(b.c(method), method.getParameterTypes()).invoke(obj, objArr);
return null;
} catch (InvocationTargetException e2) {
throw e2.getCause();
}
} else {
Objects.requireNonNull((a) this.a);
return null;
}
}
}
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hi
Do you think this library can be used for this?
https://pub.dev/packages/wifi_iot
https://source.android.com/docs/core/architecture/modular-system/tethering
sample project:
play.google.com
Do you think this library can be used for this?
https://pub.dev/packages/wifi_iot
https://source.android.com/docs/core/architecture/modular-system/tethering
sample project:
Portable WiFi - Mobile Hotspot – Apps on Google Play
Transform your phone into a personal hotspot with just a few taps!
Last edited:
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