Authorizing my application to use an Existing Folder

Question

Using the Android Drive API, when trying to connect using:

mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addApi(Drive.API).addScope(Drive         


        

Answer 1

Don't use the API provided by Google Play Services. It doesn't support DRIVE scope. Without DRIVE scope, you don't have enough privilege to access files created by other apps.

You may use DriveScopes.DRIVE, this is what I'm doing in my app. My android app needs to exchange data with my legacy desktop app.

You need to use API from Java Jar library. https://developers.google.com/drive/web/quickstart/quickstart-java A lot of JAR files need to be included, which will increase your final APK size. But, with the help of ProGuard, the size of APK is still manageable.

However, I foresee Google will soon enforce developers to use only Google Play Services, which is part of their business strategy. So, you need to have some sort of backup plan, in case that happens.

For further information, please refer to https://stackoverflow.com/questions/21807602/migration-strategy-for-google-drive-android-api-from-google-api-java-client-go and Plans for drive.appdata scope in android google drive API