prevent app crash caused by failing to reset the auto focus

cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java

@@ -40,6 +40,7 @@ class Camera1 extends CameraController {
     private Runnable mPostFocusResetRunnable = new Runnable() {
         @Override
         public void run() {
+            try {
                 if (!isCameraAvailable()) return;
                 mCamera.cancelAutoFocus();
                 synchronized (mLock) {
@@ -50,6 +51,15 @@ class Camera1 extends CameraController {
                     mCamera.setParameters(params);
                 }
             }
+            catch (Exception e) {
+                // at least setParameters may fail.
+                // problem may be device-specific to the Samsung Galaxy J5
+                // TODO why does it fail occasionally and is it possible to prevent such errors?
+                CameraException cameraException = new CameraConfigurationFailedException("Failed to " +
+                        "reset auto focus.", e);
+                mCameraCallbacks.onError(cameraException);
+            }
+        }
     };
 
     private Mapper mMapper = new Mapper.Mapper1();