iPhone开发应用中抓图程序案例实现是本文要介绍的内容，主要是通过代码来实现抓图程序，具体实现过程，一起来看详细代码。
//获得屏幕图像
- (UIImage *)imageFromView: (UIView *) theView
{
UIGraphicsBeginImageContext(theView.frame.size);
CGContextRef context = UIGraphicsGetCurrentContext();
[theView.layer renderInContext:context];
UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return theImage;
}
//获得某个范围内的屏幕图像
- (UIImage *)imageFromView: (UIView *) theView atFrame:(CGRect)r
{
UIGraphicsBeginImageContext(theView.frame.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSaveGState(context);
UIRectClip(r);
[theView.layer renderInContext:context];
UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return theImage;//[self getImageAreaFromImage:theImage atFrame:r];
}
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小结：iPhone开发应用中抓图程序案例实现的内容介绍完了，希望通过本文的学习能对你有所帮助！
