I am using EasyPermission to taking permissions from user.
#AfterPermissionGranted(PERMISSIONS_REQUEST_READ_SMS)
private void readSMS() {
String[] perms = {Manifest.permission.READ_SMS};
if (EasyPermissions.hasPermissions(this, Manifest.permission.READ_SMS)) {
initSMS();
} else {
// Do not have permissions, request them now
EasyPermissions.requestPermissions(this, getString(R.string.send_sms_rationale),
PERMISSIONS_REQUEST_READ_SMS, Manifest.permission.READ_SMS);
}
}
In my initSMS() I had tried to read messages from Android devices. Its worked fine for all devices except Xiaomi devices. I used TelephonyProvider class to read messages.
private void initSMS() {
TelephonyProvider provider = new TelephonyProvider(this);
List<Sms> sms = provider.getSms(TelephonyProvider.Filter.INBOX).getList();
for(int i = 0; i <= sms.size() - 1; i++) {
Log.d("Address",sms.get(i).address);
Log.d("Sms",sms.get(i).body);
Log.d("ReceivedDate",""+sms.get(i).receivedDate));
Log.d("State",""+sms.get(i).status);
Log.d("person",""+sms.get(i).person);
}
}
Is their any way to read all messages from Xiaomi devices?
I hope this will work for you. firstly you have to call function isMIUI() for checking miui mobile and then call this above function. this function will redirect to setting for taking service sms permission.
private void onDisplayPopupPermission() {
try {
// MIUI 8
Intent localIntent = new Intent("miui.intent.action.APP_PERM_EDITOR");
localIntent.setClassName("com.miui.securitycenter", "com.miui.permcenter.permissions.PermissionsEditorActivity");
localIntent.putExtra("extra_pkgname", getPackageName());
localIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
localIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(localIntent);
} catch (Exception e) {
try {
// MIUI 5/6/7
Intent localIntent = new Intent("miui.intent.action.APP_PERM_EDITOR");
localIntent.setClassName("com.miui.securitycenter", "com.miui.permcenter.permissions.AppPermissionsEditorActivity");
localIntent.putExtra("extra_pkgname", getPackageName());
localIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
localIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(localIntent);
} catch (Exception e1) {
// Otherwise jump to application details
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getPackageName(), null);
intent.setData(uri);
startActivity(intent);
}
}
}
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;
}
}
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>
I have a strange issue which I cannot explain. In the manifest file the launch activity of my app is defined as follows:
<activity
android:name="com.xxx.xxx.xxx.StartupActivity"
android:label="#string/app_name"
android:theme="#android:style/Theme.Light.NoTitleBar"
android:screenOrientation="sensorPortrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
In the StartUpActivity the following check is performed:
protected void startIntent() {
Intent intent;
if (checkCurrentProfile()) {
Notifier.showHttpToast(R.string.toastLoggedIn);
//try to update the device token in the database
Request.updateDeviceToken();
intent = new Intent(this, GameListActivity.class);
} else {
intent = new Intent(this, RegisterActivity.class);
}
startActivity(intent);
finish();
}
So if the user has a valid account the GameListActivity is shown as root activity:
<activity
android:name="com.xxx.xxx.xxx.xxx.GameListActivity"
android:label="#string/app_name"
android:theme="#style/MyTheme"
android:screenOrientation="sensorPortrait" >
</activity>
The issue now is the following: sometimes the system brings the root activity to the front spontaneously without any user actions. It only occurs sometimes, but I can't figure out the cause. Can anyone help me out here?
The StartUpActivity looks like this:
public class StartupActivity extends StartupCoreActivity implements OnRegisterGCMListener {
private IabHelper mHelper;
private IabHelper.QueryInventoryFinishedListener mQueryInventoryFinishedListener;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
registerOnRegisterGCMListener(this);
if (!registerGCMneeded()) {
initInAppBilling();
}
}
#Override
public void registerGCMfinished() {
initInAppBilling();
}
private void initInAppBilling() {
boolean hasPremium = Prefs.getBoolValue(getResources().getString(R.string.pref_key_upgrade_premium), false);
if (hasPremium) {
//unlocking contents not needed
startIntent();
} else {
Prefs.storeValue(getResources().getString(R.string.pref_key_upgrade_premium), false);
mHelper = new IabHelper(this, C.Billing.BILLING_KEY);
mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
public void onIabSetupFinished(IabResult result) {
if (result.isSuccess()) {
queryInventory();
} else {
startIntent();
}
}
});
}
}
private void queryInventory() {
String[] products = {C.Billing.ITEM_SKU};
mQueryInventoryFinishedListener = new IabHelper.QueryInventoryFinishedListener() {
#Override
public void onQueryInventoryFinished(IabResult result, Inventory inv) {
if (result.isSuccess()) {
checkPremiumVersion(inv);
} else {
startIntent();
}
}
};
mHelper.queryInventoryAsync(true, Arrays.asList(products), mQueryInventoryFinishedListener);
}
private void checkPremiumVersion(Inventory inv) {
if (inv.hasPurchase(C.Billing.ITEM_SKU)) {
Request.updPremiumVersion();
Prefs.storeValue(getResources().getString(R.string.pref_key_upgrade_premium), true);
Notifier.showHttpToast(R.string.toastPremiumContentsUnlocked);
}
startIntent();
}
}
And the StartupCoreActivity looks like this:
public class StartupCoreActivity extends Activity {
private final static int PLAY_SERVICES_RESOLUTION_REQUEST = xxxx;
GoogleCloudMessaging mGcm;
Context mContext;
String mRegId;
/**
* Substitute you own sender ID here. This is the project number you got
* from the API Console, as described in "Getting Started."
*/
String SENDER_ID = "xxxxxxxxxx";
private OnRegisterGCMListener mOnRegisterGCMListener = null;
public void registerOnRegisterGCMListener(OnRegisterGCMListener listener) {
mOnRegisterGCMListener = listener;
}
protected boolean registerGCMneeded() {
mContext = getApplicationContext();
// Check device for Play Services APK.
if (checkPlayServices()) {
// If this check succeeds, proceed with normal processing.
// Otherwise, prompt user to get valid Play Services APK.
mGcm = GoogleCloudMessaging.getInstance(this);
mRegId = getRegistrationId(mContext);
if (mRegId.isEmpty()) {
registerInBackground();
return true;
} else {
// note we never called setContentView()
return false;
}
}
return false;
}
protected void startIntent() {
Intent intent;
if (checkCurrentProfile()) {
Notifier.showHttpToast(R.string.toastLoggedIn);
//try to update the device token in the database
Request.updateDeviceToken();
intent = new Intent(this, GameListActivity.class);
} else {
intent = new Intent(this, RegisterActivity.class);
}
startActivity(intent);
finish();
}
private boolean checkCurrentProfile() {
KUPlayer me = G.getMySelf();
if (me.getPlayerId() <= 0) {
//database was not present yet and has been created
//or database was present, but profile cannot be read anymore
// make sure Login screen appears ONLY if PlayerID cannot be retrieved anymore
if (G.getPlayerID() <=0) {
Prefs.storeValue(Prefs.PREF_KEY_PWD_SAVED, false);
return false;
}
}
return true;
}
// You need to do the Play Services APK check here too.
#Override
protected void onResume() {
super.onResume();
checkPlayServices();
}
/**
* Check the device to make sure it has the Google Play Services APK. If
* it doesn't, display a dialog that allows users to download the APK from
* the Google Play Store or enable it in the device's system settings.
*/
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
finish();
}
return false;
}
return true;
}
/**
* Registers the application with mGcm servers asynchronously.
* <p>
* Stores the registration ID and the app versionCode in the application's
* shared preferences.
*/
private void registerInBackground() {
new AsyncTask<Void, Void, String>() {
#Override
protected String doInBackground(Void... params) {
String msg = "";
try {
if (mGcm == null) {
mGcm = GoogleCloudMessaging.getInstance(mContext);
}
mRegId = mGcm.register(SENDER_ID);
msg = "Device registered, registration ID=" + mRegId;
// Persist the mRegId - no need to register again.
storeRegistrationId(mContext, mRegId);
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
// If there is an error, don't just keep trying to register.
// Require the user to click a button again, or perform
// exponential back-off.
}
return msg;
}
#Override
protected void onPostExecute(String msg) {
// note we never called setContentView()
if (mOnRegisterGCMListener != null) {
mOnRegisterGCMListener.registerGCMfinished();
}
}
}.execute(null, null, null);
}
/**
* #return Application's version code from the {#code PackageManager}.
*/
private static int getAppVersionCode(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
private static String getAppVersionName(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionName;
} catch (NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
/**
* Stores the registration ID and the app versionCode in the application's
* {#code SharedPreferences}.
*
* #param mContext application's mContext.
* #param mRegId registration ID
*/
private void storeRegistrationId(Context context, String regId) {
Prefs.storeValue(Prefs.PREF_KEY_DEVICE_TOKEN, regId);
Prefs.storeValue(Prefs.PREF_KEY_APP_VERSION_CODE, getAppVersionCode(context));
Prefs.storeValue(Prefs.PREF_KEY_APP_VERSION_NAME, getAppVersionName(context));
AppRate.resetAfterUpdate();
}
/**
* Gets the current registration ID for application on mGcm service, if there is one.
* <p>
* If result is empty, the app needs to register.
*
* #return registration ID, or empty string if there is no existing
* registration ID.
*/
private String getRegistrationId(Context context) {
String registrationId = Prefs.getStringValue(Prefs.PREF_KEY_DEVICE_TOKEN);
if (registrationId.isEmpty()) {
return "";
}
// Check if app was updated; if so, it must clear the registration ID
// since the existing mRegId is not guaranteed to work with the new
// app version.
int registeredVersion = Prefs.getIntValue(Prefs.PREF_KEY_APP_VERSION_CODE);
int currentVersion = getAppVersionCode(context);
if (registeredVersion != currentVersion) {
return "";
}
return registrationId;
}
}
I guess it has to do with the following known Android bug:
How to prevent multiple instances of an activity when it is launched with different intents
And as suggested put the following code in the onCreate method of the rootActivity:
// Possible work around for market launches. See http://code.google.com/p/android/issues/detail?id=2373
// for more details. Essentially, the market launches the main activity on top of other activities.
// we never want this to happen. Instead, we check if we are the root and if not, we finish.
if (!isTaskRoot()) {
final Intent intent = getIntent();
final String intentAction = intent.getAction();
if (intent.hasCategory(Intent.CATEGORY_LAUNCHER) && intentAction != null && intentAction.equals(Intent.ACTION_MAIN)) {
finish();
return;
}
}
I tested it and when you start your app from Google Play store in stead of launch screen, then indeed finish() is called from above code.
i want my app to have a password protected uninstall ... (like app lock)
im using folling code it works on Android 2.3 but not on Android 4+ versions
MANIFEST FILE
<receiver android:name="fyp.invisibleink.UninstallIntentReceiver" >
<intent-filter android:priority="0" >
<action android:name="android.intent.action.QUERY_PACKAGE_RESTART" />
<data android:scheme="package" />
</intent-filter>
</receiver>
Uninstalling Activity code
ublic class Uninstalling extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_uninstalling);
// listener
Button settingsBtn = (Button) findViewById(R.id.btnu);
settingsBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final EditText e1 = (EditText) findViewById(R.id.etpass);
final String pass = e1.getText().toString();
SharedPreferences cupSetting = getSharedPreferences(
"cuppassword", Context.MODE_PRIVATE);
String mypass = cupSetting.getString("pass", "");
if (pass.equals(mypass)) {
Toast.makeText(getApplicationContext(),
"password is correct!", Toast.LENGTH_LONG).show();
Toast.makeText(getApplicationContext(),
"press OK to uninstall!", Toast.LENGTH_LONG).show();
finish();
} else {
Toast.makeText(getApplicationContext(),
"Access Denied! try again", Toast.LENGTH_LONG)
.show();
e1.setText("");
}
}
});
}
UninstallReceveier
public class UninstallIntentReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
// fetching package names from extras
String[] packageNames = intent
.getStringArrayExtra("android.intent.extra.PACKAGES");
if (packageNames != null) {
for (String packageName : packageNames) {
if (packageName != null
&& packageName.equals("com.example.invisibleink")) {
// User has selected our application under the Manage Apps
// settings
// now initiating background thread to watch for activity
new ListenActivities(context).start();
}
}
}
}
// ///////////////////////////////
class ListenActivities extends Thread {
boolean exit = false;
ActivityManager am = null;
Context context = null;
public ListenActivities(Context con) {
context = con;
am = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
}
#Override
public void run() {
Looper.prepare();
while (!exit) {
// get the info from the currently running task
List<ActivityManager.RunningTaskInfo> taskInfo = am
.getRunningTasks(MAX_PRIORITY);
String activityName = taskInfo.get(0).topActivity
.getClassName();
Log.d("topActivity", "CURRENT Activity ::" + activityName);
if (activityName
.equals("com.android.packageinstaller.UninstallerActivity")) {
// User has clicked on the Uninstall button under the Manage
// Apps settings
Intent intent = new Intent(context, Uninstalling.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
exit = true;
// do whatever pre-uninstallation task you want to perform
// here
// show dialogue or start another activity or database
// operations etc..etc..
// context.startActivity(new Intent(context,
// MyPreUninstallationMsgActivity.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
} else if (activityName
.equals("com.android.settings.ManageApplications")) {
// back button was pressed and the user has been taken back
// to Manage Applications window
// we should close the activity monitoring now
exit = true;
}
}
Looper.loop();
}
}
}
Permissioms
<uses-permission android:name="android.permission.GET_TASKS" />
I am not positive, so please correct me if I'm wrong but this might have been removed as a security feature. A malicious app might be able to create a password and avoid the app from being removed creating further damage on the device. Like I said, I could be wrong but this is a guess that seems legit. I noticed that 4+ did a couple things for security because of a lot of malicious stuff and exploits happening within 3rd party apps.