iPhone - 如何创建自定义相册，并给相机的照片编程方式的自定义名称？ [英] iPhone - How to create a custom album and give custom names to photos in camera roll programmatically?

问题描述

我正在开发一个iPhone照片应用程序，所以我需要创建一个名为我的相册在相机胶卷单独的专辑，我需要保存我的UIImageView图像与自定义名称，例如我的Image.png里面新创建的目录。

I am developing an iPhone photo application, so i need to create a separate album with a name "My Album" in camera roll and i need to save my UIImageView image with custom name for example "My Image.png" inside the newly created directory.

我如何做到这一点？

推荐答案

自定义相册，并在iOS中使用这些代码行添加图片非常简单：

You can create a custom album and add an image pretty easy with these lines of code in iOS:

// Create the new album.
__block PHObjectPlaceholder *myAlbum;
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
    PHAssetCollectionChangeRequest *changeRequest = [PHAssetCollectionChangeRequest creationRequestForAssetCollectionWithTitle:title];
    myAlbum = changeRequest.placeholderForCreatedAssetCollection;
} completionHandler:^(BOOL success, NSError *error) {
    if (success) {
        PHFetchResult *fetchResult = [PHAssetCollection fetchAssetCollectionsWithLocalIdentifiers:@[myAlbum.localIdentifier] options:nil];
        PHAssetCollection *assetCollection = fetchResult.firstObject;

        [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
            PHAssetChangeRequest *assetChangeRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:image];

            // add asset
            PHAssetCollectionChangeRequest *assetCollectionChangeRequest = [PHAssetCollectionChangeRequest changeRequestForAssetCollection:assetCollection];
            [assetCollectionChangeRequest addAssets:@[[assetChangeRequest placeholderForCreatedAsset]]];
        } completionHandler:^(BOOL success, NSError *error) {
            if (!success) {
                NSLog(@"Error: %@", error);
            }
        }];
    } else {
        NSLog(@"Error: %@", error);
    }
}];

这篇关于iPhone - 如何创建自定义相册，并给相机的照片编程方式的自定义名称？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！