Jayant Arora Jayant Arora - 5 months ago 97
Android Question

Android 6.0 Permission Error

I'm getting this error:

getDeviceId: Neither user 10111 nor current process has android.permission.READ_PHONE_STATE.
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)


I had given it in manifest though. Is there any changes regarding Android 6.XX Marshmallow devices? I need to give
READ_PHONE_STATE
permission for getting device's IMEI. Pls. Help.

Answer

Yes permissions have changed on Android M. Permissions are now requested at runtime as opposed to install time previous to Android M.

You can check out the docs here

This release introduces a new permissions model, where users can now directly manage app permissions at runtime. This model gives users improved visibility and control over permissions, while streamlining the installation and auto-update processes for app developers. Users can grant or revoke permissions individually for installed apps.

On your apps that target Android 6.0 (API level 23) or higher, make sure to check for and request permissions at runtime. To determine if your app has been granted a permission, call the new checkSelfPermission() method. To request a permission, call the new requestPermissions() method. Even if your app is not targeting Android 6.0 (API level 23), you should test your app under the new permissions model.

For details on supporting the new permissions model in your app, see Working with System Permissionss. For tips on how to assess the impact on your app, see Permissions Best Practices.

To check for permissions you have to check like this, taken from github

public class MainActivity extends SampleActivityBase
        implements ActivityCompat.OnRequestPermissionsResultCallback {

    public static final String TAG = "MainActivity";

    /**
     * Id to identify a camera permission request.
     */
    private static final int REQUEST_CAMERA = 0;

    // Whether the Log Fragment is currently shown.
    private boolean mLogShown;

    private View mLayout;

    /**
     * Called when the 'show camera' button is clicked.
     * Callback is defined in resource layout definition.
     */
    public void showCamera(View view) {
        // Check if the Camera permission is already available.
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
                != PackageManager.PERMISSION_GRANTED) {
            // Camera permission has not been granted.

            requestCameraPermission();

        } else {

            // Camera permissions is already available, show the camera preview.
            showCameraPreview();
        }
    }

    /**
     * Requests the Camera permission.
     * If the permission has been denied previously, a SnackBar will prompt the user to grant the
     * permission, otherwise it is requested directly.
     */
    private void requestCameraPermission() {
        if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                Manifest.permission.CAMERA)) {
            // Provide an additional rationale to the user if the permission was not granted
            // and the user would benefit from additional context for the use of the permission.
            // For example if the user has previously denied the permission.
            Snackbar.make(mLayout, R.string.permission_camera_rationale,
                    Snackbar.LENGTH_INDEFINITE)
                    .setAction(R.string.ok, new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            ActivityCompat.requestPermissions(MainActivity.this,
                                    new String[]{Manifest.permission.CAMERA},
                                    REQUEST_CAMERA);
                        }
                    })
                    .show();
        } else {

            // Camera permission has not been granted yet. Request it directly.
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA},
                    REQUEST_CAMERA);
        }
    }

    /**
     * Display the {@link CameraPreviewFragment} in the content area if the required Camera
     * permission has been granted.
     */
    private void showCameraPreview() {
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.sample_content_fragment, CameraPreviewFragment.newInstance())
                .addToBackStack("contacts")
                .commit();
    }

    /**
     * Callback received when a permissions request has been completed.
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
            @NonNull int[] grantResults) {

        if (requestCode == REQUEST_CAMERA) {

            // Received permission result for camera permission.est.");
            // Check if the only required permission has been granted
            if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Camera permission has been granted, preview can be displayed
                Snackbar.make(mLayout, R.string.permision_available_camera,
                        Snackbar.LENGTH_SHORT).show();
            } else {
                Snackbar.make(mLayout, R.string.permissions_not_granted,
                        Snackbar.LENGTH_SHORT).show();

            }
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mLayout = findViewById(R.id.sample_main_layout);

        if (savedInstanceState == null) {
            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
            RuntimePermissionsFragment fragment = new RuntimePermissionsFragment();
            transaction.replace(R.id.sample_content_fragment, fragment);
            transaction.commit();
        }
    }
}