com.microblink.blinkbarcode.util

Class CameraPermissionManager

java.lang.Object

com.microblink.blinkbarcode.util.CameraPermissionManager

public class CameraPermissionManager
extends java.lang.Object

Helper class that shows the camera permission screen when user has denied camera permission on Android 6.0+.

Constructor Summary

Constructors

Constructor and Description
CameraPermissionManager(android.app.Activity activity) Creates new camera permission manager and attaches it to activity.
CameraPermissionManager(android.app.Fragment fragment) Creates new camera permission manager and attaches it to fragment.
CameraPermissionManager(androidx.fragment.app.Fragment fragment) Creates new camera permission manager and attaches it to fragment.

Method Summary

Modifier and Type	Method and Description
void	askForCameraPermission() Asks the user to give camera permission and displays the layout returned by getAskPermissionOverlay if user denies the permission.
android.view.View	getAskPermissionOverlay() Returns the layout that should be displayed when camera permission is not given.
boolean	hasCameraPermission() Returns true if camera permission is available.
void	onRequestPermissionsResult(int requestCode, java.lang.String[] permissions, int[] grantResults) This method handles request permission results as given to onRequestPermissionResult callback of Activity.
void	onResume()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CameraPermissionManager

@UiThread
public CameraPermissionManager(@NonNull
                                         android.app.Activity activity)

Creates new camera permission manager and attaches it to activity.

Parameters:

activity - The activity that contains camera view.

CameraPermissionManager

@UiThread
public CameraPermissionManager(@NonNull
                                         android.app.Fragment fragment)

Creates new camera permission manager and attaches it to fragment.

Parameters:

fragment - The fragment that contains camera view.

CameraPermissionManager

@UiThread
public CameraPermissionManager(@NonNull
                                         androidx.fragment.app.Fragment fragment)

Creates new camera permission manager and attaches it to fragment.

Parameters:

fragment - The fragment that contains camera view.

Method Detail

getAskPermissionOverlay

@Nullable
 @UiThread
public android.view.View getAskPermissionOverlay()

Returns the layout that should be displayed when camera permission is not given. You should put this view somewhere in your view hierarchy. The view is initially invisible and will become visible only after calling askForCameraPermission and permission was not given. You can override this layout by providing custom res/layout/mb_camera_permission_overlay.xmlxml.

Returns:

View layout that is under control of CameraPermissionManager.

hasCameraPermission

@AnyThread
public boolean hasCameraPermission()

Returns true if camera permission is available. You should call resume() on RecognizerView only if this method returns true.

Returns:

whether or not camera permission is available

askForCameraPermission

@MainThread
public void askForCameraPermission()

Asks the user to give camera permission and displays the layout returned by getAskPermissionOverlay if user denies the permission.

onRequestPermissionsResult

@MainThread
public void onRequestPermissionsResult(int requestCode,
                                                   @NonNull
                                                   java.lang.String[] permissions,
                                                   @NonNull
                                                   int[] grantResults)

This method handles request permission results as given to onRequestPermissionResult callback of Activity.

Parameters:

requestCode - The request code as given to callback method.

permissions - The permissions array.

grantResults - The grant results as given to callback method.

onResume

public void onResume()