iphone - 检查照片库的授权状态

Question

有没有办法在新的 iOS 6 授权方案下检查您的应用对设备照片库的授权级别？

换句话说，是否存在与照片库相反的 ABAddressBookGetAuthorizationStatus 等效项？

Answer 1

ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus];

ALAuthorizationStatus用于显示可能值的文档。此 API 仅适用于 iOS 6.0 或更高版本。

Answer 2

我正在使用这个结构：

[assetsLibrary enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
        if (*stop) {
            return ;
        }
// TODO : access granted
    *stop = TRUE;
    } failureBlock:^(NSError *error) {
        // TODO: User denied access. Tell them we can't do anything.
    }];

Answer 3

对于PHPhotoLibrarySwift 中的 ，您应该获得以下值PHAuthorizationStatus：

    let authorizationStatus = PHPhotoLibrary.authorizationStatus()

返回值为：

public enum PHAuthorizationStatus : Int {  

    case notDetermined // User has not yet made a choice with regards to this application

    case restricted // This application is not authorized to access photo data.

// The user cannot change this application’s status, possibly due to active restrictions
//   such as parental controls being in place.
    case denied // User has explicitly denied this application access to photos data.

    case authorized // User has authorized this application to access photos data.
}