Bdtjtk

Trying to capture photo from front camera when the app is in background.

I have the below code working in android 6 and below.

Camera.CameraInfo cameraInfo = new Camera.CameraInfo();

                cameraCount = Camera.getNumberOfCameras();

                for (int camIdx = 0; camIdx < cameraCount; camIdx++)

                {

                    Camera.getCameraInfo(camIdx, cameraInfo);



                    if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT)

                    {

                        myCamera = Camera.open(camIdx);

                    }

                }

This works in android 7 and above only if the app is in foreground. If the app is in background it shows the below error:

W/CameraBase: An error occurred while connecting to camera 1: Status(-8): '6: validateClientPermissionsLocked:915: Caller "packagename" (PID 10152, UID 32606) cannot open camera "1" from background'



W/System.err: java.lang.RuntimeException: Fail to connect to camera service



W/System.err:     at android.hardware.Camera.<init>(Camera.java:546)



W/System.err:     at android.hardware.Camera.open(Camera.java:392)



W/System.err:     at com.tracking_smartphone.TakePictureActivity.takePictureNoPreview(TakePictureActivity.java:77)



W/System.err:     at com.tracking_smartphone.TakePictureActivity.onCreate(TakePictureActivity.java:46)



W/System.err:     at android.app.Activity.performCreate(Activity.java:7144)



W/System.err:     at android.app.Activity.performCreate(Activity.java:7135)



W/System.err:     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)



W/System.err:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2894)



W/System.err:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3049)



W/System.err:     at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)



W/System.err:     at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)



W/System.err:     at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)



W/System.err:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1809)



W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:106)



W/System.err:     at android.os.Looper.loop(Looper.java:193)



W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:6680)



W/System.err:     at java.lang.reflect.Method.invoke(Native Method)



W/System.err:     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)



W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

The code is called in an Activity which is invoked from a JobService.