catch Camera RuntimeExceptions

fixes #3895
Closes #4083
// FREEBIE

src/org/thoughtcrime/securesms/components/camera/CameraView.java

@@ -114,6 +114,7 @@ public class CameraView extends FrameLayout {
           host.onCameraFail(result);
           return;
         }
+        try {
           cameraReady = true;
           if (getActivity().getRequestedOrientation() != ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) {
             onOrientationChange.enable();
@@ -127,6 +128,14 @@ public class CameraView extends FrameLayout {
           requestLayout();
           invalidate();
           Log.w(TAG, "onResume() completed");
+        } catch (RuntimeException re) {
+          Log.w(TAG, "exception when starting camera preview", re);
+          try {
+            previewDestroyed();
+          } catch (RuntimeException re2) {
+            Log.w(TAG, "also failed to release camera", re2);
+          }
+        }
       }
     });
   }
@@ -272,9 +281,12 @@ public class CameraView extends FrameLayout {
   }
 
   void previewDestroyed() {
+    try {
       if (camera != null) {
         previewStopped();
         camera.release();
+      }
+    } finally {
       camera = null;
     }
   }