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];
- }
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!