iOS 学习笔记(截屏)
OC代码如下
- (UIImage *)captureScreen:(UIView *)mView size:(CGSize)mSize {
// Creates a bitmap-based graphics context and makes it the current context
//创建一个位图，并成为当前的背景
UIGraphicsBeginImageContext(mSize);
// Renders the receiver and its sublayers into the specified context
//渲染给子layer提供一个特定的背景
[mView.layer renderInContext:UIGraphicsGetCurrentContext()];
// Returns an image based on the contents of the current bitmap-based graphics context
//返回一个当前背景下的位图
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
// Removes the current bitmap-based graphics context from the top of the stack
//讲当前位图从堆中移除
UIGraphicsEndImageContext();
return image;
}
郑重声明：本站内容如果来自互联网及其他传播媒体，其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享，并不代表本站赞同其观点和对其真实性负责，也不构成任何其他建议。
