Objective C从远程url下载图片方法汇总
投稿：hebedich
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
- (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
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。