I am trying to select an image from photo library, this is the photo which I have downloaded from net and is stored in my photo lib.
So now I want to give user an option to select an image from photo lib and apply as a backgroundImage throught my app, but when I do it, I get the image this way on my iphone screen
Actually the image has been filled the screen, because the content mode specified is "scaleToFill".
1) I want to know how to make this image maintain its aspect ratio and also fill the screen?
Regards Ranjit
check this blog . use these two files
UIImage *image = [UIImage imageNamed:@"SomeImage-900x675"]; // SomeImage-900x675.png
CGFloat targetWidth = 320.0;
CGFloat scaleFactor = targetWidth / image.size.width;
CGFloat targetHeight = image.size.height * scaleFactor;
CGSize targetSize = CGSizeMake(targetWidth, targetHeight);
UIImage *scaledImage = [image resizedImage:targetSize interpolationQuality:kCGInterpolationHigh];
尽管您的图片占据了所有屏幕尺寸,但是您的图片尺寸却更大了...您可以尝试按以下分辨率缩放图片320 * 480、640 * 960、1240 * 2208
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