从URL Phonegap Iphone保存图像

我在谷歌上搜索了很多，但找不到解决办法

我需要一些方法来保存我的应用程序从网上的图片。就像一个函数，我可以将url放入其中，然后它将下载它：

i、 e

有这样的东西吗？

布拉格马克- pragma标记用于加载图像的线程

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这应该能奏效

- (void)downloadPhoto:(NSString*)urlToDownloadFrom
{
    // Download the image. now downloadeImg has the img you want.
    UIImage *downloadedImg = [UIImage imageWithData: [NSData dataWithContentsOfURL:
                               [NSURL URLWithString: urlToDownloadFrom]]];

    UIImageWriteToSavedPhotosAlbum(downloadedImg,self,
                         @selector(savedPhotoImage:didFinishSavingWithError:contextInfo:),NULL);
   // saves the image into your Photos.app/directory and calls the savedPhotoImage fucn. Am unclear if you actually needed this function. 

}

-(void)savedPhotoImage:(UIImage *)imagedidFinishSavingWithError:(NSError *)errorcontextInfo:(void *)contextInfo
{
}

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谢谢但是，我用的是phonegap。。。所以我不知道如何实现这一点。我不会说目标C…你从url下载图片成功了吗？

- (void)downloadPhoto:(NSString*)urlToDownloadFrom
{
    // Download the image. now downloadeImg has the img you want.
    UIImage *downloadedImg = [UIImage imageWithData: [NSData dataWithContentsOfURL:
                               [NSURL URLWithString: urlToDownloadFrom]]];

    UIImageWriteToSavedPhotosAlbum(downloadedImg,self,
                         @selector(savedPhotoImage:didFinishSavingWithError:contextInfo:),NULL);
   // saves the image into your Photos.app/directory and calls the savedPhotoImage fucn. Am unclear if you actually needed this function. 

-(void)savedPhotoImage:(UIImage *)imagedidFinishSavingWithError:(NSError *)errorcontextInfo:(void *)contextInfo
{
}