JNI DETECTED ERROR IN APPLICATIO

Android上调试UVCCamera，释放相机时出现问题，闪退
解决方案：
...
public synchronized void stopPreview() {
//setFrameCallback(null, 0);
if (mCtrlBlock != null) {
nativeStopPreview(mNativePtr);
}
}
...
把stopPreView()的setFrameCallback(null, 0); 这句注释掉，就完美解决这个问题了。
参考连接：JNI DETECTED ERROR IN APPLICATION: jmethodID was NULL · Issue #244 · saki4510t/UVCCamera · GitHub