[問題] 擷取圖片放大怎麼不失真
google了整下午還是沒解決＝＝
上來請求幫忙....
我用了以下
-(UIImage*) getImage
{
if(saveAndShareImage == nil
{
CGRect rect =comicViewController.comicView.frame;
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
[comicViewController.comicView.layer renderInContext:context];
saveAndShareImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
}
return saveAndShareImage;
}
可以擷取comicViewController.comicView.layer
存放在saveAndShareImage裡
但是因為需要輸出成1500x2100像數的大圖＝＝
直接用CGAffineTransform flipVertical = CGAffineTransformMakeScale(2.88, 2.88);
會讓圖片有馬賽克模糊
另外找了- (UIImage *)resizableImageWithCapInsets:(UIEdgeInsets)capInsets
試了半天完全搞不懂＝＝
求大大們指點了.....謝謝!!
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