拾取图像的Xcode的名字(name of the picked image xcode)

我想这个名字的图像从库中挑选或新点击 -

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

我使用此代码：

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeSavedPhotosAlbum])
    {
        AppDelegate *del = [[UIApplication sharedApplication]delegate];
        [self dismissModalViewControllerAnimated:YES];
        image = [info objectForKey:UIImagePickerControllerOriginalImage];

        NSLog(@"imagekbgfg=====>%@",image);
        [self.imageView setImage:image];

        imgName = [info objectForKey:UIImagePickerControllerOriginalImage];

        del.mainImgName = imgName;
        del.imageData = UIImageJPEGRepresentation(image, 1.0);
        del.imageApp = image;
    }

    if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera])
    {
       image = [info objectForKey:UIImagePickerControllerOriginalImage];
    }
}

我怎样才能做到这一点？

Answer 1:

使用代码波纹管，你会得到这样的路径： assets-library://asset/asset.JPG?id=79450962-C0FD-484C-808B-83E045F40972&ext=JPG时，从相册您采摘图像。 此路径是有效的。 它包含资产ID和资产类型。

// Firstly get the picked image's file URL.
NSURL *imageFileURL = [info objectForKey:UIImagePickerControllerReferenceURL];

// Then get the file name.
NSString *imageName = [imageFileURL lastPathComponent];
NSLog(@"image name is %@", imageName);

如果你想获得的图像用户重新拾起使用您开始使用路径UIImagePickerController 。（这里也许你要保存的路径，这样就可以读出的图像回而不要求用户再次挑选图），您将需要ALAssetsLibrary否则你并不需要它。

ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
__block UIImage *returnValue = nil;
[library assetForURL:imageFileURL resultBlock:^(ALAsset *asset) {
    returnValue = [UIImage imageWithCGImage:[[asset defaultRepresentation] fullResolutionImage]];
} failureBlock:^(NSError *error) {
    NSLog(@"error : %@", error);
}];

Answer 2:

看看在UIImagePickerControllerDelegate协议。 该字符串UIImagePickerControllerReferenceURL包含您的文件的URL。 你可以用它来构建它的文件名。

除此之外似乎没有内置的方式从一个的UIImage或UIImageView的对象获取的文件名。

参考： ＃1回答

Answer 3:

您可以使用下面的代码获取文件名：

NSURL *assetURL = [imageDic objectForKey:UIImagePickerControllerReferenceURL];

 __block NSString *originalFileName = nil;

 ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
 [library assetForURL:assetURL resultBlock:^(ALAsset *asset){
             originalFileName = [[asset defaultRepresentation] filename];
}

originalFileName给资源的原始文件名。

文章来源: name of the picked image xcode