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

To Resume correctly, you need to do this:

@Override
public void onResume() {
    super.onResume();  

    // Get the Camera instance as the activity achieves full user focus
    if (mCamera == null) {
        initializeCamera(); // Local method to handle camera initialization
    }
}



protected void initializeCamera(){
    // Get an instance of Camera Object
    mCamera = getCameraInstance();

   // create a basic camera preview class that can be included in a View layout.
    mPreview=new CameraPreview(this,mCamera);

    //add your preview class to the FrameLayout element.
    preview.addView(mPreview);

   //Trigger capturing an image by calling the Camera.takePicture() method.
    captureButton.setOnClickListener(
            new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    // get an image from the camera
                    mCamera.takePicture(null, null, mPicture);
                }
            }
        );
}

And also just to remind that in oncreate() do nothing except defining FrameLayout preview and Button captureButton.