ios开发将截图保存到相册

最新推荐文章于 2021-01-16 20:05:44 发布

aizhan3232

最新推荐文章于 2021-01-16 20:05:44 发布

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CC 4.0 BY-SA版权

文章标签：移动开发

原文链接：http://www.cnblogs.com/Ewenblog/p/10783702.html

本文介绍了一个简单的iOS应用功能，实现从当前视图截图并保存到设备相册的方法。通过使用UIKit框架中的UIGraphicsBeginImageContextWithOptions和UIImageWriteToSavedPhotosAlbum函数，实现了截图并保存的功能。

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- (void)loadImageFinished:(UIImage *)image
{
    UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), (__bridge void *)self);
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{

    NSLog(@"image = %@, error = %@, contextInfo = %@", image, error, contextInfo);
}


    //截图功能
-(UIImage *)captureImageFromView:(UIView *)view
{

    UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow];

    CGRect rect = [keyWindow bounds];

    UIGraphicsBeginImageContextWithOptions(rect.size,YES, 0.0);

    [view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *snapshotImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return snapshotImage;
}

- (IBAction)savePhotoButton:(UIButton *)sender {

    [self loadImageFinished:[self captureImageFromView:self.view]];
    kShowD(@"截屏以保存至系统相册");
}