iphone - Draw Image With Transform In Draw In Rect

Question

I would Like to save UIImage with rotation in drawInRect.
I am having four UImageView objects from which second and third has Rotation of 100 degree and 250 degree respectively.
So can anyone tell me how can I give rotation to those images which are inside UIImageView?

Answer 1

我希望它能帮助你解决你的问题，

对于 100 度旋转，如果您想保持 250 度，请将 100 替换为 250 度。

100度

(UIImageview *).transform = CGAffineTransformMakeRotation(1.744);

250度

(UIImageview *).transform = CGAffineTransformMakeRotation(4.36);

此代码是根据您的要求

 UIGraphicsBeginImageContext( newSize );
[bottomImage drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
//I want Rotation for second and third Image//
 [secondImage drawInRect:CGRectMake(0, 0, 110, 300)]; 
 secondImage.transform = CGAffineTransformMakeRotation(1.744);

[thirdImage drawInRect:CGRectMake(0, 0, 110, 300)]; 
thirdImage.transform = CGAffineTransformMakeRotation(4.36);
[fourthImage drawInRect:CGRectMake(0,0,fourthImage.size.width ,fourthImage.size.height )]; 

UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();