"capture.onResume()" not able to start camera preview.

Hi @rkistner

If first time i allowed the camera permission, and in between if i deny the camera permission from “App info”, and if again i will start scanner and again allow the permission then the camera preview does not start immediately only red strip blinking; for camera preview i have to start my activity again (and i’m not finishing my activity on positive button click because i have manual barcode entry option too). Means user want it immediately start the camera preview as soon permission allowed, and there is a possibility that user may deny the camera permission anytime.

      @Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults)
{
    if(requestCode == cameraPermissionReqCode)
    {
        if(grantResults.length > 0 && grantResults[0] == 0)
        {
            capture.onResume();
        }
        else
        {
           displayFrameworkBugMessageAndExit();
        }
    }

}


private void displayFrameworkBugMessageAndExit()
{
    Utils.displayInfoDialog(this, getString(R.string.scanner_error_title), getString(R.string.scanner_error_message), new DialogOnDoneCallback()
    {
        @Override
        public void OnDone(Object onDone)
        {
        }
    }, true);
}

Please look into this…Thanks in advance.

[Bajranghudda1]

@rkistner @meierjan @cnworks Hi there i got its solution,

Its because, what we were doing capture.onResume(); we were calling on onResume() of activity and if permission is granted, its okay for library to initialize all camera instance but if the camera instance is not created (if user deny the permission) and we are trying to call capture.onPause(); on our activity’s onPause(). So that time there is nothing to pause. Thats it. So make sure before to call capture.onPause() that, Is camera is already initialized or not.

[Bajranghudda1]

@rkistner @meierjan @cnworks Hi there i got its solution,

Its because, what we were doing capture.onResume(); we were calling on onResume() of activity and if permission is granted, its okay for library to initialize all camera instance but if the camera instance is not created (if user deny the permission) and we are trying to call capture.onPause(); on our activity’s onPause(). So that time there is nothing to pause. Thats it. So make sure before to call capture.onPause() that, Is camera is already initialized or not.