iOS从远程地址获取图片并修改尺寸

NSString imageURL = [NSString stringWithFormat: @"id=%@", [[resultsEntries objectAtIndex:0] objectForKey: @"image_large"]]; NSData imageData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:imageURL]];

UIImage* image = [[UIImage alloc] initWithData:imageData];

// resize image CGSize newSize = CGSizeMake(100, 100); UIGraphicsBeginImageContext( newSize );// a CGSize that has the size you want [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];

//image is the original UIImage UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext();

imageHeight = image.size.height; [imageMain setImage:newImage]; [imageData release]; [image release];</pre>