如何检查我的应用是否可以访问电话库 [英] How may I check if my app has access to phone gallery

问题描述

我有一个应用程序，我用相机拍照并将该图像存储到本机库中。但如果应用程序没有权限，我希望用户知道这一点。那么如何查看呢？

I have an app in which I take a picture with the camera and store that image into the native gallery. But if the app doesn't have permission for that, I want the user to know that. So how do I check it?

顺便说一下：我将图像存储到图库中：

By the way: I store the image into the gallery with:

UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);

推荐答案

您需要检查<$ c $的状态c> ALAssetLibrary
确保您的文件中包含 AssetsLibrary / AssetsLibrary.h

  ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus];

//检查 ALAuthorizationStatusAuthorized 的状态或 ALAuthorizationStatusDenied 例如

// check the status for ALAuthorizationStatusAuthorized or ALAuthorizationStatusDenied e.g

    if (status != ALAuthorizationStatusAuthorized) {
        //show alert for asking the user to give permission

    }

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