Objec,tive C从远程url下载图片方法汇总

2019-11-02 14:32:08

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　　本文给大家分享了2则使用Objective C从远程url下载图片的方法，都是个人项目中使用的，汇总下推荐给大家，有需要的小伙伴可以参考下。

　　Objective C从远程url下载图片

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从远程地址获取图片并修改尺寸

奇米影院[www.aikan.tv/special/miqiyingyuan/]

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.height; [imageMain setImage:newImage]; [imageData release]; [image release];

　　以上所述就是本文的全部内容了，希望大家能够喜欢。

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