Objective C从远程url下载图片方法汇总
ObjectiveC从远程url下载图片
-(UIImage*)getImageFromURL:(NSString*)theURL{
UIImage*theImage=NULL;
NSString*imageFileName=[BT_stringsgetFileNameFromURL:theURL];
NSData*imageData=[[NSDataalloc]initWithContentsOfURL:[NSURLURLWithString:theURL]];
theImage=[[UIImagealloc]initWithData:imageData];
[BT_fileManagersaveImageToFile:theImagefileName:imageFileName];
returntheImage;
}
objectiveC从远程地址获取图片并修改尺寸
NSString*imageURL=[NSStringstringWithFormat:@"http://theimageurl.com/?id=%@",[[resultsEntriesobjectAtIndex:0]objectForKey:@"image_large"]]; NSData*imageData=[[NSDataalloc]initWithContentsOfURL:[NSURLURLWithString:imageURL]]; UIImage*image=[[UIImagealloc]initWithData:imageData]; //resizeimage CGSizenewSize=CGSizeMake(100,100); UIGraphicsBeginImageContext(newSize);//aCGSizethathasthesizeyouwant [imagedrawInRect:CGRectMake(0,0,newSize.width,newSize.height)]; //imageistheoriginalUIImage UIImage*newImage=UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); imageHeight=image.size.height; [imageMainsetImage:newImage]; [imageDatarelease]; [imagerelease];
以上所述就是本文的全部内容了，希望大家能够喜欢。
热门推荐
3 祝福语简短的微信
10 幼儿祝福语大全简短贺卡
11 感谢教官文案祝福语简短
12 鼠年同事祝福语简短创意
13 元旦祝福语 简短独特群发
14 妈咪跟我生日祝福语简短
15 给儿子新婚祝福语简短
16 伴娘祝福语长文案简短
17 恭喜高考完祝福语简短
18 生日祝福语送老公简短