method called after release() exception unable to resume with android camera

Question

While developing a camera app I\'ve encountered an exception that only happened when I switch to other app (onPause() for my app).

01-15 17:22:1         


        

Answer 1

Adding to okambi's answer.

This is the function messing everything up when you resume:

 public void surfaceCreated(SurfaceHolder holder) {
        // The Surface has been created, now tell the camera where to draw the preview.
        try {
            mCamera.setPreviewDisplay(holder);
            mCamera.startPreview();
        } catch (IOException e) {
            Log.d(TAG, "Error setting camera preview: " + e.getMessage());
        }
    }

The try{} is not catching the exception being thrown. Namely that mCamera doesn't exist, and then when it tries to call setPreviewDisplay(holder), there is a crash.

So by removing the callback, this surfaceCreated doesn't get called and avoids the crash.

This is VERY POORLY DOCUMENTED by Google.