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 imageCGSize 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 UIImageUIImage* 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。
