android-permissions

I am looking to get started with the Marshmallow Fingerprint Authentication API. I understand that to ask for permission, I must use the following method: ContextCompat.checkSelfPermission(getContext(), Manifest.permission.USE_FINGERPRINT); And I must check if the device is running API level 23 or higher. But before I ask for permission, I would like to check if the device actually has a fingerprint scanner to begin with. I found the following two methods to do this check: FingerprintManager manager = (FingerprintManager) getSystemService(Context.FINGERPRINT_SERVICE); manager

I'm attempting to request ACCESS_FINE_LOCATION permissions in order to get the user's current location. My logging indicates that my app does not currently have this permission when querying ContextCompat.checkSelfPermission() , but when calling ActivityCompat.requestPermissions() nothing is displayed. My Google map code (implementing OnMapReadyCallback and ActivityCompat.OnRequestPermissionsResultCallback() ) is in a FragmentActivity . I have managed to get the requestPermissions() function working successfully in other Activities in the app, it's just the one with the Google map. It doesn't

I'm trying to start a call intent action on a device who has Marshmallow as OS, Using the same steps as usual (This is working on versions bellow): Add permission: <uses-permission android:name="android.permission.CALL_PHONE" /> Open the intent: Intent intent = new Intent(Intent.ACTION_CALL); intent.setData(Uri.parse("tel:" + getString(R.string.connect_phone))); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); This is the log I'm getting: FATAL EXCEPTION: main Process: com.app.calling, PID: 4250 java.lang.SecurityException: Permission Denial: starting Intent { act=android

I have written a service as part of an application. I try to call this service from a second application using the following code: Intent intent = new Intent () ; intent.setClassName("com.test" ,"com.test.DownloadService") ; // Create a new Messenger for the communication back Messenger messenger = new Messenger(handler); intent.putExtra("MESSENGER", messenger); intent.setData(Uri.parse("http://www.vogella.com/index.html")); intent.putExtra("urlpath", "http://www.vogella.com/index.html"); this.startService(intent); It gives the following exception 07-10 09:27:28.819: ERROR/AndroidRuntime(4226)

I have an Android App which will interact with an USB device, in the Android developer official documentation for Obtaining permission to communicate with a device it says: Note : If your application uses an intent filter to discover USB devices as they're connected, it automatically receives permission if the user allows your application to handle the intent. If not, you must request permission explicitly in your application before connecting to the device. The Intent Filter is to be declared in the AndroidManifest.xml and using a resource file which will include the vendor-id and product-id.

My app writes (and reads) cache files to the getExternalCacheDir() location. Before Android Lollipop (API 21) I've been using this permission with success: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="18" /> The maxSdkVersion is there because this permission shouldn't be needed after API v18: http://developer.android.com/reference/android/Manifest.permission.html#WRITE_EXTERNAL_STORAGE But on Android Lollipop (5.0) I'm getting an access permission like so (with my log output to show the actual path used): 11-19 13:01:59.257 4462-4541/com