我使用此代码进行iOS屏幕截图:
CGImageRef screen = UIGetScreenImage();
UIImage *image = [UIImage imageWithCGImage:screen];
CGImageRelease(screen);
UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
CGRect screenshotFrame;
CGImageRef screenshotRef = CGImageCreateWithImageInRect(screenshotRef, screenshotFrame);
UIImage * screenshot = [[(UIImage *)screenshotRef retain] autorelease];
CGImageRelease(screenshotRef);
但我的屏幕包含屏幕底部的工具栏。我不想在我捕获的屏幕上使用工具栏。我怎样才能裁剪工具栏?我该如何修改我的代码?
答案 0 :(得分:2)
我认为你可以捕获self.view层,因为它是根视图
if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
//Retina display
UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, [UIScreen mainScreen].scale);
} else {
UIGraphicsBeginImageContext(self.view.bounds.size);
}
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *finalImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
玩得开心!
答案 1 :(得分:2)
类似的问题已经标记为已解决。这里是您的解决方案的链接
答案 2 :(得分:1)
试试这个:
UIGraphicsBeginImageContext(/*CGRECT*/);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *screenImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
在CGRect
传递你想要截图的矩形。
希望它可以帮助你..
答案 3 :(得分:0)
设置
CGRect screenshotFrame = CGRectMake(0, 0, 320, 436);
// 480(screen height) - 44(toolbar height) = 436