图片压缩

用法: 
UIImage *yourImage= [self imageWithImageSimple:image scaledToSize:CGSizeMake(210.0, 210.0)]; 
// 压缩图片
- ( UIImage *)imageWithImageSimple:( UIImage *)image scaledToSize:( CGSize )newSize
{ // Create a graphics image context UIGraphicsBeginImageContext (newSize); // Tell the old image to draw in this newcontext, with the desired // new size [image drawInRect : CGRectMake ( 0 , 0 ,newSize. width ,newSize. height )]; // Get the new image from the context UIImage * newImage = UIGraphicsGetImageFromCurrentImageContext (); // End the context UIGraphicsEndImageContext (); // Return the new image. return newImage; }

 

posted @ 2016-03-08 12:07  刚刚888  阅读(209)  评论(0编辑  收藏  举报