繪製圖像變換繪製在裏面

Question

我想保存UIImage旋轉drawInRect。
我具有四個UImageView對象從中第二和第三分別具有100度和250度旋轉。
那麼有誰能告訴我，我該如何給那些在UIImageView裏面的圖片輪換？

Answer 1

我希望它會幫助你解決你的問題，

100度旋轉，如果你想保持的250度請及時與250度替換100。

爲100度

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

爲250個輩分

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

此代碼是按照您的要求

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();