在uiimageview中设置网络图片等比例大小

最新推荐文章于 2024-05-12 00:33:46 发布

peng13123

最新推荐文章于 2024-05-12 00:33:46 发布

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分类专栏： ios

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本文深入探讨了图像处理技术及其在AR特效中的应用，包括图像色彩空间、编解码算法、视频容器和FFmpeg等核心概念。通过详细解释每个环节的作用，帮助读者理解如何将原始数据转换为高质量的视觉效果。

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NSData *data=[NSData dataWithContentsOfURL:[YeehealthApi getServerImage:[dic objectForKey:@"images"]]];
        UIImage *img = [UIImage imageWithData:data];

        CGFloat realX;
        CGFloat realY;
        CGFloat _x;
        CGFloat _y;
        CGFloat _w;
        CGFloat _h;

        if (ScreenW>img.size.width) {
            realX = (ScreenW-img.size.width)/2.0;
            _x = realX+ScreenW*i;

            if (ScreenH>img.size.height) {
                realY = (ScreenH-img.size.height)/2.0;
                _y = realY;
                _w = img.size.width;
                _h = img.size.height;
            }else{
                _y = 0;
                _w = img.size.width/(img.size.height/ScreenH);
                _h = img.size.height/(img.size.height/ScreenH);
            }

        }else{
             _x = ScreenW*i;
            if (ScreenH>img.size.height) {
                realY = (ScreenH-img.size.height)/2.0;
                _y = realY;
                _w = img.size.width/(img.size.width/ScreenW);
                _h = img.size.height/(img.size.width/ScreenW);
            }else{
                _y = (ScreenH-img.size.height/(img.size.width/ScreenW))/2;
                _w = img.size.width/(img.size.width/ScreenW);
                _h = img.size.height/(img.size.width/ScreenW);
            }
        }

        imgV.frame = CGRectMake(_x,_y,_w, _h);

]