Camera频繁GC

提高Camera效率减少 gc

   camera.addCallbackBuffer(new byte[size.width * size.height * 3 / 2]);
                camera.setPreviewCallbackWithBuffer(new Camera.PreviewCallback() {

                    @Override
                    public void onPreviewFrame(byte[] data, Camera camera) {
                        onFrameListener.onPreviewFrame(data, temp, size.width, size.height);
                        camera.addCallbackBuffer(data);
                    }
                });
camera.startPreview();