调整屏幕截图图像的大小会导致文本模糊

Question

My code:

-(UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize
{
    UIGraphicsBeginImageContextWithOptions(newSize, NO, 0.0);
    [image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return newImage;
}

The first parameter is image which is screen shot my view controller.

The second parameter newSize is actually smaller than the image size which follows the aspect ratio also. But the image is looks good but the text(UILabel) are some what blur .

How can i solve this any idea?

Answer 1

假设newSize为磅：

UIGraphicsBeginImageContextWithOptions(newSize, NO, image.scale);