Question

在设计我的照片时,我有来自遥远服务器的图像的广场空间。然而,有时,图像是地貌变化而不是平方。

我不想推测图像,而是把它缩小到足以适应当地制约因素的程度,然后用一些背景的颜色、白人来填补剩余的空间。

Answer 1

Seting the contentMode of their UIImageView to

Answer 2

I don t know if this helps or not, but I use this to fit the size of the View to match the image. It takes the provided rect, and trims it to match the image. The returned CGRect can be then be applied to the view. I used this so I could add a shadow to the image (which looks wrong if the view doesn t match the image perfectly).

- (CGRect) resizeCGRect:(CGRect)rect toImage:(UIImage *)image{
CGSize size = rect.size;
CGSize iSize = image.size;
if (iSize.width > iSize.height){
    if (iSize.width / iSize.height > size.width / size.height)
        size.height = size.width * (iSize.height / iSize.width);                    
    else
        size.width = size.height * (iSize.width / iSize.height);
} else {
    if (iSize.height / iSize.width > size.height / size.width) 
        size.width = size.height * (iSize.width / iSize.height);
    else 
        size.height = size.width * (iSize.height / iSize.width);
}
rect.size = size;
return rect;

}

Answer 3

Create a UIImageView with a background color of the color you want. Create your image from your server, set the image in the image view, and then set the contentMode = UIViewContentModeScaleAspectFit

UIImageView *backgroundColorWhite = [[UIImageView alloc] initWithFrame:someObject.frame];
backgroundColorWhite.backgroundColor = [UIColor whiteColor];
UIImage *serverImage = [UIImage imageWithData:serverData];
backgroundColorWhite.contentMode = UIViewContentModeScaleAspectFit;
[backgroundColorWhite setImage:serverImage];

友情链接