UIImage change size 

 1 -(UIImage*)changeImage:(UIImage*)imageT withNewSize:(CGSize)newSizeT
 2 {
 3           //define a new image
 4           UIImage* newImage = nil;
 5 
 6           //set the image to current context
 7           UIGraphicsBegainImageContext(newSizeT);
 8           //redraw the image to new rect
 9           [imageT drawRect:CGRectMake(0,0,newSizeT.width,newSizeT.height)];
10           //
11           newImage = UIGraphicsGetImageFromCurrentContext();
12           //end image context operator
13           UIGraphicsEndImageContext();
14 
15           //
16           return newImage;
17 }

 

posted @ 2014-03-18 17:19  optt  阅读(252)  评论(0)  编辑  收藏  举报