42.截屏保存到相册

最新推荐文章于 2024-11-20 22:45:51 发布

n71820

最新推荐文章于 2024-11-20 22:45:51 发布

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分类专栏：截屏保存到相册文章标签：截屏保存到相册

本文链接：https://blog.youkuaiyun.com/u012493967/article/details/46310563

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       // 1.创建一个bitmap的上下文
        UIGraphicsBeginImageContext(self.view.frame.size);


        // 2.将屏幕绘制到上下文中
        [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];

         UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();


        // 3.从上下文中取出绘制好的图片
        UIImage *newImage1 = UIGraphicsGetImageFromCurrentImageContext();

        NSData *data = UIImagePNGRepresentation(newImage);

        NSString *path = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"abc.png"];
        NSLog(@"%@", path);
        [data writeToFile:path atomically:YES];


        // 4.保存图片到相册，保存完成后毕业调用系统的方法image:didFinishSavingWithError:contextInfo:，不能自己写方法，否则会报错

        UIImageWriteToSavedPhotosAlbum(newImage, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);


 - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
    if (error) {
        [MBProgressHUD showError:@"保存失败, 请检测应用是否拥有访问相册的权限"];
    }else
    {
        [MBProgressHUD showSuccess:@"保存成功"];
    }
}