objective-C從遠程地址獲取圖片并修改尺寸

y35w 9年前發布 | 4K 次閱讀 Objective-C 

NSString imageURL = [NSString stringWithFormat: @"http://theimageurl.com/?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>
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