- (UIImage*)getimage{//截屏使用的方法
CGSize imageSize = [[UIScreen mainScreen] bounds].size;
if (NULL != UIGraphicsBeginImageContextWithOptions) {
UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0);
} else {
UIGraphicsBeginImageContext(imageSize);
}
CGContextRef context = UIGraphicsGetCurrentContext();
for (UIWindow *window in [[UIApplication siharedApplication] windows]) {
if (![window respondsToSelector:@selector(screen)] || [window screen] == [UIScreen mainScreen]) {
CGContextSaveGState(context);
CGContextTranslateCTM(context, [window center].x, [window center].y);
CGContextConcatCTM(context, [window transform]);
CGContextTranslateCTM(context,
-[window bounds].size.width * [[window layer] anchorPoint].x,
-[window bounds].size.height * [[window layer] anchorPoint].y);
[[window layer] renderInContext:context];
CGContextRestoreGState(context);
}
}
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
CGSize imageSize = [[UIScreen mainScreen] bounds].size;
if (NULL != UIGraphicsBeginImageContextWithOptions) {
UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0);
} else {
UIGraphicsBeginImageContext(imageSize);
}
CGContextRef context = UIGraphicsGetCurrentContext();
for (UIWindow *window in [[UIApplication siharedApplication] windows]) {
if (![window respondsToSelector:@selector(screen)] || [window screen] == [UIScreen mainScreen]) {
CGContextSaveGState(context);
CGContextTranslateCTM(context, [window center].x, [window center].y);
CGContextConcatCTM(context, [window transform]);
CGContextTranslateCTM(context,
-[window bounds].size.width * [[window layer] anchorPoint].x,
-[window bounds].size.height * [[window layer] anchorPoint].y);
[[window layer] renderInContext:context];
CGContextRestoreGState(context);
}
}
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
本文转自 卓行天下 51CTO博客，原文链接：http://blog.51cto.com/9951038/1616382，如需转载请自行联系原作者
