iOS 相机截屏

小编我今天刚好弄到一个直播里面需要截屏的方法，百度了很久都是界面截屏，当开启相机就会白底。不多说直接上代码。。。

-(UIImage*)captureView:(UIView *)theView

{

UIGraphicsBeginImageContext(CGSizeMake(theView.size.width, theView.size.height));

[theView drawViewHierarchyInRect:CGRectMake(0, 0,theView.size.width, theView.size.height) afterScreenUpdates:NO];

UIImage *img = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return img;

}