I know how to turn on/off wifi hot spot using reflection in android using below method.
private static boolean changeWifiHotspotState(Context context,boolean enable) {
try {
WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
Method method = manager.getClass().getDeclaredMethod("setWifiApEnabled", WifiConfiguration.class,
Boolean.TYPE);
method.setAccessible(true);
WifiConfiguration configuration = enable ? getWifiApConfiguration(manager) : null;
boolean isSuccess = (Boolean) method.invoke(manager, configuration, enable);
return isSuccess;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
But the above method is not working Android 8.0(Oreo).
When I execute above method in Android 8.0, I am getting below statement in logcat.
com.gck.dummy W/WifiManager: com.gck.dummy attempted call to setWifiApEnabled: enabled = true
Is there any other way to on/off hotspot on android 8.0
I thought the LocalOnlyHotspot route was the way to, but as #edsappfactory.com said in the comments - it only gives closed network, no internet access.
In Oreo hot-spotting/tethering moved to ConnectionManager, and its annotated #SystemApi, so (nominally) inaccessible.
As part of something else I was doing, I made an app and put it on github here. It uses reflection to get at the function and DexMaker to generate a subclass of ConnectionManager.OnStartTetheringCallback (which is also inaccessible).
Think it all works okay - bit rough around the edges, so please feel free to make better!
Relevant bits of code are in:
MyOreoWifiManager and;
CallbackMaker
I lost patience trying to get my DexMaker-generated callback to fire the MyOnStartTetheringCallback so all that code is in disarray and commented out.
Finally I got the solution.
Android 8.0, they provided public api to turn on/off hotspot. WifiManager
Below is the code to turn on hotspot
private WifiManager.LocalOnlyHotspotReservation mReservation;
#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");
mReservation = reservation;
}
#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());
}
private void turnOffHotspot() {
if (mReservation != null) {
mReservation.close();
}
}
onStarted(WifiManager.LocalOnlyHotspotReservation reservation) method will be called if hotspot is turned on.. Using WifiManager.LocalOnlyHotspotReservation reference you call close() method to turn off hotspot.
Note:
To turn on hotspot, the Location(GPS) should be enabled in the device. Otherwise, it will throw SecurityException
As per Jon suggestion, I got another way to enable WifiHotSpot in Android Oreo and above.
public boolean enableTetheringNew(MyTetheringCallback callback) {
File outputDir = mContext.getCodeCacheDir();
try {
proxy = ProxyBuilder.forClass(classOnStartTetheringCallback())
.dexCache(outputDir).handler(new InvocationHandler() {
#Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
switch (method.getName()) {
case "onTetheringStarted":
callback.onTetheringStarted();
break;
case "onTetheringFailed":
callback.onTetheringFailed();
break;
default:
ProxyBuilder.callSuper(proxy, method, args);
}
return null;
}
}).build();
} catch (IOException e) {
e.printStackTrace();
}
ConnectivityManager manager = (ConnectivityManager) mContext.getApplicationContext().getSystemService(ConnectivityManager.class);
Method method = null;
try {
method = manager.getClass().getDeclaredMethod("startTethering", int.class, boolean.class, classOnStartTetheringCallback(), Handler.class);
if (method == null) {
Log.e(TAG, "startTetheringMethod is null");
} else {
method.invoke(manager, TETHERING_WIFI, false, proxy, null);
}
return true;
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
return false;
}
private Class classOnStartTetheringCallback() {
try {
return Class.forName("android.net.ConnectivityManager$OnStartTetheringCallback");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return null;
}
I need to check programmatically if the auto start permission for my app in MIUI phone is on or off. Facebook and whatsapp have this permission already enabled by default , how can I do so?
For now it's not possible.
As it's completely depend on their operating system API's and customisation. Even developers have requested for this on XIOMI's official forums but there is no response from there side.
Till now even i am finding an answer to this question but nothing helped me.
For the time being it will be only possible for rooted phones. i.e. making customisation in their firmware by becoming super user. But this is not at all advisable as it may damage user's phone.
EDIT 1
You can redirect user to autostart permission's settings page for enabling your app using following code
String manufacturer = "xiaomi";
if (manufacturer.equalsIgnoreCase(android.os.Build.MANUFACTURER)) {
//this will open auto start screen where user can enable permission for your app
Intent intent1 = new Intent();
intent1.setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
startActivity(intent1);
}
EDIT 2
I have recently used Mi A1 from XIOMI which have stock android (not miui) so this phone does not have autostart permission settings from miui. So take care while navigating user to the settings in such devices because it will not work here.
100% working for oppo, vivo, xiomi, letv huawei, and honor
just call this function
private void addAutoStartup() {
try {
Intent intent = new Intent();
String manufacturer = android.os.Build.MANUFACTURER;
if ("xiaomi".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
} else if ("oppo".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity"));
} else if ("vivo".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity"));
} else if ("Letv".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.letv.android.letvsafe", "com.letv.android.letvsafe.AutobootManageActivity"));
} else if ("Honor".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity"));
}
List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
if (list.size() > 0) {
startActivity(intent);
}
} catch (Exception e) {
Log.e("exc" , String.valueOf(e));
}
}
This is not a perfect solution by any means and it requires some testing, but I've been able to detect the autostart permission on my Xiaomi device with it.
The autostart permission allows apps to be started by receiving an implicit broadcast intent. This method consists of scheduling an implicit broadcast with AlarmManager, killing the app and checking if the broadcast caused it to respawn. A second explicit intent is also scheduled just to make sure that the app is started eventually.
public class AutostartDetector extends BroadcastReceiver {
// I've omitted all the constant declaration to keep this snippet concise
// they should match the values used in the Manifest
public static void testAutoStart(Context context) {
long now = System.currentTimeMillis();
// this ID is for matching the implicit and explicit intents
// it might be unnecessary
String testId = Long.toHexString(now);
Intent implicitIntent = new Intent(ACTION_IMPLICIT_BROADCAST);
// the category is set just to make sure that no other receivers handle the broadcast
implicitIntent.addCategory(CATEGORY_AUTOSTART);
implicitIntent.putExtra(EXTRA_TEST_ID, testId);
PendingIntent implicitPendingIntent =
PendingIntent.getBroadcast(context, REQUEST_CODE_IMPLICIT_BROADCAST, implicitIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent explicitIntent = new Intent(ACTION_EXPLICIT_BROADCAST);
explicitIntent.addCategory(CATEGORY_AUTOSTART);
explicitIntent.setComponent(new ComponentName(context, AutostartDetector.class));
explicitIntent.putExtra(EXTRA_TEST_ID, testId);
PendingIntent explicitPendingIntent =
PendingIntent.getBroadcast(context, REQUEST_CODE_EXPLICIT_BROADCAST, explicitIntent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
// calling commit() makes sure that the data is written before we kill the app
// again, this might be unnecessary
getSharedPreferences(context).edit().putInt(testId, TestStatus.STARTED).commit();
// the explicit intent is set with an additional delay to let the implicit one be received first; might require some fine tuning
alarmManager.set(AlarmManager.RTC_WAKEUP, now + BASE_DELAY, implicitPendingIntent);
alarmManager.set(AlarmManager.RTC_WAKEUP, now + BASE_DELAY + EXPLICIT_INTENT_DELAY, explicitPendingIntent);
// kill the app - actually kind of tricky, see below
SelfKiller.killSelf(context);
}
#Override
public void onReceive(Context context, Intent intent) {
SharedPreferences sharedPreferences = getSharedPreferences(context);
String testId = intent.getStringExtra(EXTRA_TEST_ID);
if (testId == null) {
Log.w(TAG, "Null test ID");
return;
}
if (!sharedPreferences.contains(testId)) {
Log.w(TAG, "Unknown test ID: " + testId);
return;
}
String action = intent.getAction();
if (ACTION_IMPLICIT_BROADCAST.equals(action)) {
// we could assume right here that the autostart permission has been granted,
// but we should receive the explicit intent anyway, so let's use it
// as a test sanity check
Log.v(TAG, "Received implicit broadcast");
sharedPreferences.edit().putInt(testId, TestStatus.IMPLICIT_INTENT_RECEIVED).apply();
} else if (ACTION_EXPLICIT_BROADCAST.equals(action)) {
Log.v(TAG, "Received explicit broadcast");
int testStatus = sharedPreferences.getInt(testId, -1);
switch (testStatus) {
case TestStatus.STARTED:
// the implicit broadcast has NOT been received - autostart permission denied
Log.d(TAG, "Autostart disabled");
sharedPreferences.edit().putBoolean(PREF_AUTOSTART_ENABLED, false).apply();
notifyListener(false);
break;
case TestStatus.IMPLICIT_INTENT_RECEIVED:
// the implicit broadcast has been received - autostart permission granted
Log.d(TAG, "Autostart enabled");
sharedPreferences.edit().putBoolean(PREF_AUTOSTART_ENABLED, true).apply();
notifyListener(true);
break;
default:
Log.w(TAG, "Invalid test status: " + testId + ' ' + testStatus);
break;
}
}
}
private interface TestStatus {
int STARTED = 1;
int IMPLICIT_INTENT_RECEIVED = 2;
}
Receiver declaration in the manifest:
<receiver android:name=".autostart.AutostartDetector">
<intent-filter>
<category android:name="com.example.autostart.CATEGORY_AUTOSTART"/>
<action android:name="com.example.autostart.ACTION_IMPLICIT_BROADCAST"/>
<action android:name="com.example.autostart.ACTION_EXPLICIT_BROADCAST"/>
</intent-filter>
</receiver>
Killing the app reliably is another problem. I've been using this helper method:
public static void killSelf(Context context) {
ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
activityManager.killBackgroundProcesses(context.getPackageName());
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
// this is all we can do before ICS. luckily Xiaomi phones have newer system versions :)
System.exit(1);
return;
}
// set up a callback so System.exit() is called as soon as all
// the activities are finished
context.registerComponentCallbacks(new ComponentCallbacks2() {
#Override
public void onTrimMemory(int i) {
if (i == TRIM_MEMORY_UI_HIDDEN) {
Log.v(TAG, "UI Hidden");
System.exit(1);
}
}
/* ... */
});
// see below
ActivityTracker.getInstance().finishAllActivities();
}
ActivityTracker is another utility that keeps track of activity lifecycles. Make sure to register it in the Application subclass.
#RequiresApi(api = Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public final class ActivityTracker implements Application.ActivityLifecycleCallbacks {
private final ArraySet<Activity> mCreatedActivities = new ArraySet<>();
public static ActivityTracker getInstance() {
return Holder.INSTANCE;
}
public static void init(Application application) {
application.registerActivityLifecycleCallbacks(getInstance());
}
public static void release(Application application) {
ActivityTracker activityTracker = getInstance();
application.unregisterActivityLifecycleCallbacks(activityTracker);
activityTracker.mCreatedActivities.clear();
}
public void finishAllActivities() {
// iterate over active activities and finish them all
for (Activity activity : mCreatedActivities) {
Log.v(TAG, "Finishing " + activity);
activity.finish();
}
}
public Set<Activity> getCreatedActivities() {
return Collections.unmodifiableSet(mCreatedActivities);
}
#Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
mCreatedActivities.add(activity);
}
#Override
public void onActivityDestroyed(Activity activity) {
mCreatedActivities.remove(activity);
}
private static final class Holder {
private static final ActivityTracker INSTANCE = new ActivityTracker();
}
/* ... */
}
You might also want to stop all the services just to be sure.
In addition to Nikhil's answer:
First of all, some apps like Facebook, Whatsapp are whitelisted from Xiomi by default that means auto start permission will automatically be on for these apps.
I also didn't find any way to check for auto start permission if it's enabled or not and enable it programmatically. Though as above answer suggests we can redirect user to auto start permission activity but when we have to redirect user we still don't know and also this will not work in all of the Xiomi devices.
So I used an alternative for my sync adapter to work. I stored a boolean variable named "isSyncAdapterRunning" in shared preferences and set the value of it every time sync adapter runs. This way I'll be able to know if my sync adapter is working or not.
//in my sync adapter
#Override
public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider, SyncResult syncResult) {
Log.e("TAG", "SyncStarted");
performSync(true);
}
public static void performSync(boolean fromSyncAdapterClass){
//write your code for sync operation
if(fromSyncAdapterClass){
setValueOfIsSyncAdapterRunningVariable();
}
}
I made other background service to perform same task if sync adapter is not working.
//In my other background service
public class BackgroundSyncService extends IntentService {
public BackgroundSyncService() {
super("BackgroundSyncService");
}
#Override
protected void onHandleIntent(Intent intent) {
SyncAdapter.performSync(false);
}
}
Now start sync adapter:
// start your sync adapter here
//And after that just start that service with a condition
if(!getValueOfIsSyncAdapterRunningVariable()){
startService(new Intent(context, BackgroundSyncService.class));
}
So basically I'm running another service to perform same task in background if my sync adapter is not working and the best thing is only one of them will run at a time.
Above code will fail if user turn on auto start permission and turn off again because value of boolean variable is already set. For that you can set value of boolean variable to default once in every 24Hrs.
Hope this helps.
For now it's not possible.
As it's completely depend on their operating system API's and customization. But i implemented a fix using SharedPreference. It doesn't solved the problem but it prevents app from opening setting screen everytime app is opened. Example :
if (AppPref.getAutoStart(context).isEmpty() && AppPref.getAutoStart(context).equals("")) {
enableAutoStart();
}
private void enableAutoStart() {
if (Build.BRAND.equalsIgnoreCase("xiaomi")) {
new AlertDialog.Builder(context)
.setTitle("Enable AutoStart")
.setMessage("Please allow this app to always run in the background,else our services can't be accessed.")
.setNegativeButton("Deny", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
AppPref.setAutoStart(context, "");
dialog.dismiss();
}
})
.setPositiveButton("ALLOW", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
try {
AppPref.setAutoStart(context, "1");
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.miui.securitycenter",
"com.miui.permcenter.autostart.AutoStartManagementActivity"));
startActivity(intent);
} catch (Exception e) {
Toast.makeText(context, "Can't perform action", Toast.LENGTH_SHORT).show();
}
dialog.dismiss();
}
})
.create()
.show();
}
}
This code worked for me. Simple and easy . Credit
private State getAutoStartState(Activity activity) throws Exception {
Class<?> clazz;
try {
clazz = Class.forName(CLAZZ);
} catch (ClassNotFoundException ignored) {
// we don't know if its enabled, class
// is not found, no info
return State.NO_INFO;
}
final Method method = getMethod(clazz);
if (method == null) {
// exception raised while search the method,
// or it doesn't exist
return State.NO_INFO;
}
// the method is a public method, It's still
// better to do this
method.setAccessible(true);
// the target object is null, because the
// method is static
final Object result = method.invoke(null, getActivity(),
getActivity().getPackageName());
// the result should be an Int
if (!(result instanceof Integer))
throw new Exception();
final int _int = (int) result;
if (_int == ENABLED)
return State.ENABLED;
else if (_int == DISABLED)
return State.DISABLED;
return State.UNKNOWN;
}
private Method getMethod(Class<?> clazz) {
try {
return clazz.getDeclaredMethod("getApplicationAutoStart",
Context.class, String.class);
} catch (Exception ignored) {
// this should not happen, probably
// MIUI version is updated, lets give a last try
return null;
}
}
public void checkMIUIAutoStart(Activity activity) throws Exception {
if (getAutoStartState(activity) == State.DISABLED) {
String manufacturer = "xiaomi";
if (manufacturer.equalsIgnoreCase(android.os.Build.MANUFACTURER)) {
//this will open auto start screen where user can enable permission for your app
Intent intent1 = new Intent();
intent1.setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
startActivity(intent1);
}
}else {
Toast.makeText(activity, "Auto-start is enabled.", Toast.LENGTH_SHORT).show();
}
}
You cannot check whether autorun permission is enabled or not because autorun feature is provided by customised os only not by android os like mi, vivo, oppo, letv etc
This is a workaround tested on MI, Honor and vivo phones.
To check whether os is customised like miui, honor ui copy and paste this method in activity, fragment or util class
public static void getAutoStartPermission(final Activity context) {
final String build_info = Build.BRAND.toLowerCase();
switch (build_info) {
case "xiaomi":
Utilities.Companion.showAutorunDialog(context);
break;
case "letv":
Utilities.Companion.showAutorunDialog(context);
break;
case "oppo":
Utilities.Companion.showAutorunDialog(context);
break;
case "vivo":
Utilities.Companion.showAutorunDialog(context);
break;
case "Honor":
Utilities.Companion.showAutorunDialog(context);
break;
default:
break;
}
}
Where
fun showAutorunDialog(context: Context) {
val builder = AlertDialog.Builder(context)
//set title for alert dialog
builder.setTitle("Alert")
//set message for alert dialog
builder.setMessage("Enable Autostart permission for this app if its disabled in app settings in order to run application in background.")
builder.setCancelable(true)
//performing positive action
builder.setPositiveButton("Enable") { _, _ ->
addAutoStartup(context)
}
// Create the AlertDialog
var vpnDialog = builder.create()
// Set other dialog properties
vpnDialog!!.setCancelable(false)
vpnDialog!!.show()
}
private fun addAutoStartup(context:Context) {
try {
val intent = Intent()
val manufacturer = Build.MANUFACTURER
if ("xiaomi".equals(manufacturer, ignoreCase = true)) {
intent.component = ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity")
} else if ("oppo".equals(manufacturer, ignoreCase = true)) {
intent.component = ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity")
} else if ("vivo".equals(manufacturer, ignoreCase = true)) {
intent.component = ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity")
} else if ("Letv".equals(manufacturer, ignoreCase = true)) {
intent.component = ComponentName("com.letv.android.letvsafe", "com.letv.android.letvsafe.AutobootManageActivity")
} else if ("Honor".equals(manufacturer, ignoreCase = true)) {
intent.component = ComponentName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity")
}
val list: List<ResolveInfo> = context.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
if (list.size > 0) {
context.startActivity(intent)
}
} catch (e: java.lang.Exception) {
Log.e("exc", e.toString())
}
}
You could use this library to check the autostart permission state on MIUI 10, 11 and 12.
https://github.com/XomaDev/MIUI-autostart
// make sure device is MIUI device, else an
// exception will be thrown at initialization
Autostart autostart = new Autostart(applicationContext);
State state = autostart.getAutoStartState();
if (state == State.DISABLED) {
// now we are sure that autostart is disabled
// ask user to enable it manually in the settings app
} else if (state == State.ENABLED) {
// now we are also sure that autostart is enabled
}
To check if permission enabled, I just starting a foreground service and check if is running.
Service:
class ExtraPermissionStateService: Service() {
companion object {
private var instance: ExtraPermissionStateService? = null
fun isAppCanRunOnBackground(context: Context): Boolean {
val serviceIntent = Intent(context, ExtraPermissionStateService::class.java)
context.startService(serviceIntent)
return instance != null
}
}
override fun onBind(p0: Intent?): IBinder? {
return null
}
override fun onCreate() {
super.onCreate()
instance = this
}
override fun onDestroy() {
super.onDestroy()
instance = null
}
}
call it:
ExtraPermissionStateService.isAppCanRunOnBackground(context)
And don't forget on the manifest:
<service android:name=".helpers.utils.ExtraPermissionStateService"/>
I have tried the below solution and it worked for me. If the "Auto Start" is enabled it will return "true", if not it will return "false".
public class CustomPermissionCheck {
private static final String TAG = "CustomPermissionCheck";
private Context context;
private static final int APP_AUTO_START_PERMISSION_CODE = 10008;
public CustomPermissionCheck(Context context) {
this.context = context;
}
public boolean isAutoStartEnabled() {
try {
AppOpsManager appOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
Method method = AppOpsManager.class.getMethod("checkOpNoThrow", int.class, int.class, String.class);
int result = (int) method.invoke(appOpsManager, APP_AUTO_START_PERMISSION_CODE, android.os.Process.myUid(), context.getPackageName());
boolean isEnabled = result == AppOpsManager.MODE_ALLOWED;
return isEnabled;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}
You have to do allow and deny for system permissions.
below is the code:
private boolean checkPermission(){
int result = ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION);
if (result == PackageManager.PERMISSION_GRANTED){
return true;
} else {
return false;
}
}
#Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST_CODE:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Snackbar.make(view,"Permission Granted, Now you can access location data.",Snackbar.LENGTH_LONG).show();
} else {
Snackbar.make(view,"Permission Denied, You cannot access location data.",Snackbar.LENGTH_LONG).show();
}
break;
}
}
I am not getting BOOT_COMPLETE broadcast in my Xiaomi Redmi 2 Prime mobile.
My BroadcastReciever is ---
public class OnBootReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
// Setting singleAlarm
SingleAlarmHandler.getInstance().setAlarm(context);
try {
// Sending System Setting broadcast
String offDate = SharedPrefrencesHandler.getInstance(context).readString(SharedPrefrencesConstants.SWITCH_OFF_DATE);
int type = SystemSettingsType.PHONE_SWITCH_ON_OFF.getNumericType();
if (offDate == null)
offDate = "";
SystemSettingsHandler.getSystemSettingsHandler().makeSystemSettingsCall(context, type, offDate);
SharedPrefrencesHandler.getInstance(context).removePrefrence(SharedPrefrencesConstants.SWITCH_OFF_DATE);
} catch (Exception e) {
Log.e(ChaseForceApplication.TAG, e.getMessage());
}
}
}
and manifest:
<receiver
android:name=".broadcastlisteners.OnBootReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
with permission:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
Now I am not getting BOOT COMPLETE broadcast in my Xiaomi Redmi 2 Prime mobile as alarm is not set. But in other android mobiles it is working correctly.
I searched and found that it is problem in MIUI firmware. In such mobile they provide an in built security app and until you allow auto start permission in that Security app, you are unable to get broad cast (any notification).
And as soon as you check that permission in that app you start to get the broadcast.
Now my question is:
How to get MIUI Security app auto start permission( Phones like Redmi) programmatically?
this question already has answer in two Stack Overflow threads:
thread #1 https://stackoverflow.com/a/40932178/1537413
String xiaomi = "Xiaomi";
final String CALC_PACKAGE_NAME = "com.miui.securitycenter";
final String CALC_PACKAGE_ACITIVITY = "com.miui.permcenter.autostart.AutoStartManagementActivity";
if (deviceManufacturer.equalsIgnoreCase(xiaomi)) {
DisplayUtils.showDialog(activity, "Ask for permission", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
try {
Intent intent = new Intent();
intent.setComponent(new ComponentName(CALC_PACKAGE_NAME, CALC_PACKAGE_ACITIVITY));
activity.startActivity(intent);
} catch (ActivityNotFoundException e) {
Logger.e(TAG, "Failed to launch AutoStart Screen ", e);
} catch (Exception e) {
Logger.e(TAG, "Failed to launch AutoStart Screen ", e);
}
}
}, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
}
thread #2 https://stackoverflow.com/a/41696993/1537413
String manufacturer = "xiaomi";
if(manufacturer.equalsIgnoreCase(android.os.Build.MANUFACTURER)) {
//this will open auto start screen where user can enable permission for your app
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
startActivity(intent);
}
and for similar problem on huawei devices:
https://stackoverflow.com/a/35220476/1537413
private void ifHuaweiAlert() {
final SharedPreferences settings = getSharedPreferences("ProtectedApps", MODE_PRIVATE);
final String saveIfSkip = "skipProtectedAppsMessage";
boolean skipMessage = settings.getBoolean(saveIfSkip, false);
if (!skipMessage) {
final SharedPreferences.Editor editor = settings.edit();
Intent intent = new Intent();
intent.setClassName("com.huawei.systemmanager", "com.huawei.systemmanager.optimize.process.ProtectActivity");
if (isCallable(intent)) {
final AppCompatCheckBox dontShowAgain = new AppCompatCheckBox(this);
dontShowAgain.setText("Do not show again");
dontShowAgain.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
editor.putBoolean(saveIfSkip, isChecked);
editor.apply();
}
});
new AlertDialog.Builder(this)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle("Huawei Protected Apps")
.setMessage(String.format("%s requires to be enabled in 'Protected Apps' to function properly.%n", getString(R.string.app_name)))
.setView(dontShowAgain)
.setPositiveButton("Protected Apps", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
huaweiProtectedApps();
}
})
.setNegativeButton(android.R.string.cancel, null)
.show();
} else {
editor.putBoolean(saveIfSkip, true);
editor.apply();
}
}
}
private boolean isCallable(Intent intent) {
List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent,
PackageManager.MATCH_DEFAULT_ONLY);
return list.size() > 0;
}
private void huaweiProtectedApps() {
try {
String cmd = "am start -n com.huawei.systemmanager/.optimize.process.ProtectActivity";
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
cmd += " --user " + getUserSerial();
}
Runtime.getRuntime().exec(cmd);
} catch (IOException ignored) {
}
}
private String getUserSerial() {
//noinspection ResourceType
Object userManager = getSystemService("user");
if (null == userManager) return "";
try {
Method myUserHandleMethod = android.os.Process.class.getMethod("myUserHandle", (Class<?>[]) null);
Object myUserHandle = myUserHandleMethod.invoke(android.os.Process.class, (Object[]) null);
Method getSerialNumberForUser = userManager.getClass().getMethod("getSerialNumberForUser", myUserHandle.getClass());
Long userSerial = (Long) getSerialNumberForUser.invoke(userManager, myUserHandle);
if (userSerial != null) {
return String.valueOf(userSerial);
} else {
return "";
}
} catch (NoSuchMethodException | IllegalArgumentException | InvocationTargetException | IllegalAccessException ignored) {
}
return "";
}
You need to give permissions in the in build security application for xiaomi.
1. open the security app
2. go to permissions
3. go to auto start
4. enable the applications that you want to keep running in the background!
This worked for me..!
My app should pair with a BLE without showing any pairing request dialog. I am setting pin in the code. But actually dialog is showing for a sec and then disappearing. Pairing is happening, but i don't want this dialog to be shown. Is there a method to do that?
Since the SDK version 19 this is more difficult. I found a way to bypass it using a subclass of BroadcastReceiver.
public class BluetoothPairingRequest extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_PAIRING_REQUEST.equals(action)) {
// convert broadcast intent into activity intent (same action string)
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
int type = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, BluetoothDevice.ERROR);
Intent pairingIntent = new Intent();
pairingIntent.setClass(context, MainActivity.class);
pairingIntent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
pairingIntent.putExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, type);
pairingIntent.setAction(BluetoothDevice.ACTION_PAIRING_REQUEST);
pairingIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (device != null) {
try {
device.setPin("1111".getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
context.startActivity(pairingIntent);
}
}
}
Then you need register a bond receiver like this.
/**
* Lock used in synchronization purposes
*/
private final Object lock = new Object();
private String deviceAddress;
...
#Override
public void onCreate() {
super.onCreate();
...
final IntentFilter bondFilter = new IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
registerReceiver(bondStateBroadcastReceiver, bondFilter);
}
#Override
public void onDestroy() {
super.onDestroy();
...
unregisterReceiver(bondStateBroadcastReceiver);
}
After this you can add this code when you want to initialize the bonding process.
...
BluetoothDevice newDevice = bluetoothAdapter.getRemoteDevice(device.getAddress());
deviceAddress = newDevice.getAddress();
createBond(newDevice);
...
The implementation of the createBond is here:
private final BroadcastReceiver bondStateBroadcastReceiver = new BroadcastReceiver() {
#Override
public void onReceive(final Context context, final Intent intent) {
// Obtain the device and check it this is the one that we are connected to
final BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (!device.getAddress().equals(mDeviceAddress))
return;
// Read bond state
final int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, -1);
if (bondState == BluetoothDevice.BOND_BONDING)
return;
requestCompleted = true;
// Notify waiting thread
synchronized (lock) {
lock.notifyAll();
}
}
};
private boolean createBond(final BluetoothDevice device) {
if (device.getBondState() == BluetoothDevice.BOND_BONDED)
return true;
boolean result;
requestCompleted = false;
sendLogBroadcast(LOG_LEVEL_VERBOSE, "Starting pairing...");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
result = device.createBond();
} else {
result = createBondApi18(device);
}
// We have to wait until device is bounded
try {
synchronized (lock) {
while (!requestCompleted) lock.wait();
}
} catch (final InterruptedException e) {
Log.e(TAG, "Sleeping interrupted", e);
}
return result;
}
private boolean createBondApi18(final BluetoothDevice device) {
/*
* There is a createBond() method in BluetoothDevice class but for now it's hidden. We will call it using reflections. It has been revealed in KitKat (Api19)
*/
try {
final Method createBond = device.getClass().getMethod("createBond");
if (createBond != null) {
return (Boolean) createBond.invoke(device);
}
} catch (final Exception e) {
Log.w(TAG, "An exception occurred while creating bond", e);
Log.e(TAG, e.toString());
}
return false;
}
Finally don't forget to add to your manifest these lines:
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
And register the receiver:
<receiver android:name=".bluetooth.BluetoothPairingRequest">
<intent-filter>
<action android:name="android.bluetooth.device.action.PAIRING_REQUEST" />
<action android:name="android.bluetooth.device.action.PAIRING_CANCEL" />
</intent-filter>
</receiver>
Is there an API function to check if a call is currently Active, or if has been put on Hold?
Assuming I have two connected calls, is there a way to check if each one is active, on-hold, or maybe they are connected in a conference call?
Yes, you can check if a call is active over device or not:
public static boolean isCallActive(Context context){
AudioManager manager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
if(manager.getMode()==AudioManager.MODE_IN_CALL){
return true;
}
else{
return false;
}
}
This is proper way:
Add a permission to manifest:
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
Request permission from the user:
private boolean runThisWhileStartingApp() {
boolean hasPhonePermission = checkPermission(android.Manifest.permission.READ_PHONE_STATE, "Explantation why the app needs this permission");
if (!hasPhonePermission) {
// user did not allow READ_PHONE_STATE permission
}
}
private boolean checkPermission(final String permissionName, String reason) {
if (ContextCompat.checkSelfPermission(MyActivity.this, permissionName) != android.content.pm.PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(MyActivity.this, permissionName)) {
AlertDialog alertDialog = new AlertDialog.Builder(MyActivity.this).create();
alertDialog.setTitle(permissionName);
alertDialog.setMessage(reason);
alertDialog.setCancelable(false);
alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
ActivityCompat.requestPermissions(MyActivity.this, new String[]{ permissionName }, 1000);
}
});
alertDialog.show();
} else {
ActivityCompat.requestPermissions(InitActivity.this, new String[]{ permissionName }, 1000);
}
return false;
}
return true;
}
And finally, check if device handles ongoing call anytime:
TelecomManager tm = (TelecomManager) getSystemService(Context.TELECOM_SERVICE);
boolean isInCall = tm.isInCall(); // true if there is an ongoing call in either a managed or self-managed ConnectionService, false otherwise
Documentation: https://developer.android.com/reference/android/telecom/TelecomManager#isInCall()