App crashes when pressing "Capture" - needs runtime permissions

[dturner]

19-01-10 11:29:54.952 23158-23184/com.example.android.mediarecorder E/libc: Access denied finding property "vendor.gralloc.enable_ahardware_buffer"
2019-01-10 11:30:06.683 23158-23227/com.example.android.mediarecorder W/CameraBase: An error occurred while connecting to camera 0: Status(-8): '1: validateClientPermissionsLocked:906: Caller "com.example.android.mediarecorder" (PID 10279, UID 23158) cannot open camera "0" without camera permission'
2019-01-10 11:30:06.692 23158-23227/com.example.android.mediarecorder E/AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
Process: com.example.android.mediarecorder, PID: 23158
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:354)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
at java.util.concurrent.FutureTask.run(FutureTask.java:271)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.RuntimeException: Fail to connect to camera service
at android.hardware.Camera.(Camera.java:546)
at android.hardware.Camera.open(Camera.java:410)
at com.example.android.common.media.CameraHelper.getDefaultCameraInstance(CameraHelper.java:103)
at com.example.android.mediarecorder.MainActivity.prepareVideoRecorder(MainActivity.java:142)
at com.example.android.mediarecorder.MainActivity.access$000(MainActivity.java:44)
at com.example.android.mediarecorder.MainActivity$MediaPrepareTask.doInBackground(MainActivity.java:218)
at com.example.android.mediarecorder.MainActivity$MediaPrepareTask.doInBackground(MainActivity.java:213)
at android.os.AsyncTask$2.call(AsyncTask.java:333)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
at java.lang.Thread.run(Thread.java:764) 
2019-01-10 11:30:06.817 23158-23227/com.example.android.mediarecorder I/Process: Sending signal. PID: 23158 SIG: 9

Almost certainly because of failure to ask for runtime permissions.