当用户手动取消相机权限导致的程序崩溃的解决办法(Android 6.0以上好像没事,好像是...)

CameraManager mCameraManager = CameraManager.get();

try {
mCameraManager.openDriver();
} catch (Exception e) {
e.printStackTrace();
ToastView toast = new ToastView(getApplication(),"相机权限已关闭,请手动打开");
toast.setLongTime(3000);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}