释放双眼,带上耳机,听听看~!
//设置透明导航栏
UIView *barImageView = self.navigationController.navigationBar.subviews.firstObject;
barImageView.alpha = 0.0;
//设置透明导航栏
UIView *barImageView = self.navigationController.navigationBar.subviews.firstObject;
barImageView.alpha = 0.0;