本文給大家分享了2則使用Objective C從遠程url下載圖片的方法，都是個人項目中使用的，匯總下推薦給大家，有需要的小伙伴可以參考下。
Objective C從遠程url下載圖片
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1 2 3 4 5 6 7 8 - (UIImage *) getImageFromURL: (NSString *)theURL { UIImage *theImage = NULL; NSString *imageFileName = [BT_strings getFileNameFromURL:theURL]; NSData *imageData = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:theURL]]; theImage = [[UIImage alloc] initWithData:imageData]; [BT_fileManager saveImageToFile:theImage fileName:imageFileName]; return theImage; }objective C從遠程地址獲取圖片并修改尺寸
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 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以上所述就是本文的全部內(nèi)容了，希望大家能夠喜歡。
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