摘要： 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.lay... 阅读全文