Complete Guide to Integrating Google Photos, Google Drive, and Messenger Support in Google App for iOS

This comprehensive guide will help you integrate Google Photos and Google Drive into your Google app for iOS, as well as update your app to support the discontinued Messenger domain. You’ll learn how to configure APIs, update your code, and test your app.

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Prerequisites

Before you begin, you should have a Google app project for iOS, Google Photos API, Google Drive API, and a basic understanding of Swift and iOS programming.

Integrating Google Photos

Step 1: Configuring Google Photos API

1. Visit the Google Cloud Console and log in with your Google account.
2. Click on Create a project and give your project a name.
3. Go to the API and services page, then click on Create an API.
4. Search for the Google Photos API and click on Request Access.
5. Follow the instructions to configure the Google Photos API.

Step 2: Add Required Permissions

1. Go to the API and services page of your project.
2. Click on the Google Photos API you created.
3. Go to the Permissions page, then click on Create Credentials.
4. Specify the requested permissions such as `photoslibrary.readonly` and `photoslibrary.sharing`.
5. Save the credentials ID provided by Google.

Step 3: Configure your App

1. Go to the API and services page of your project.
2. Click on the Google Photos API you created.
3. Go to the OAuth 2.0 Configuration page, then click on Add a redirect URI.
4. Save the redirect URI provided by Google.
5. Go to the Credentials page, then copy the Client ID provided by Google.

Step 4: Integrate Google Photos into your code

1. Add the following frameworks to your project: `GoogleAPIClientForREST`, `GoogleSignIn`, `GooglePhotosPicker`, and `GoogleUtilities`.
2. Follow the instructions to configure your project with the Client ID and redirect URI you saved earlier.
3. Use the `GPPHotoPickerController` class to launch the Google Photos picker.
4. Follow the instructions to obtain the necessary authorizations and access the user’s photos.

Integrating Google Drive

Step 1: Configuring Google Drive API

1. Visit the Google Cloud Console and log in with your Google account.
2. Click on Create a project and give your project a name.
3. Go to the API and services page, then click on Create an API.
4. Search for the Google Drive API and click on Request Access.
5. Follow the instructions to configure the Google Drive API.

Step 2: Add Required Permissions

1. Go to the API and services page of your project.
2. Click on the Google Drive API you created.
3. Go to the Permissions page, then click on Create Credentials.
4. Specify the requested permissions such as `drive.file`, `drive.metadata.readonly`, `drive.metadata.readwrite`, and `drive.appdata`.
5. Save the credentials ID provided by Google.

Step 3: Configure your App

1. Go to the API and services page of your project.
2. Click on the Google Drive API you created.
3. Go to the OAuth 2.0 Configuration page, then click on Add a redirect URI.
4. Save the redirect URI provided by Google.
5. Go to the Credentials page, then copy the Client ID provided by Google.

Step 4: Integrate Google Drive into your code

1. Add the following frameworks to your project: `GoogleAPIClientForREST`, `GoogleSignIn`, `GoogleDriveCore`, `GoogleDriveFile`, `GoogleDriveDirectory`, and `GoogleDriveService`.
2. Follow the instructions to configure your project with the Client ID and redirect URI you saved earlier.
3. Use the `GoogleDriveService` class to access Google Drive.
4. Use the `GoogleDriveFile` and `GoogleDriveDirectory` classes to manage files and folders.
5. Follow the instructions to obtain the necessary authorizations and access the user’s files.

Supporting the Discontinued Messenger Domain

Step 1: Update your code

1. Update your code to support the new APIs and features.
2. Modify your code to support the new requested permissions for Google Photos and Google Drive.

Step 2: Test your app

1. Test your app on an iOS device to ensure everything works correctly.
2. Verify that you can access the user’s photos and Google Drive files.
3. Verify that you can send messages with the discontinued Messenger domain.

Conclusion

This guide will help you integrate Google Photos and Google Drive into your Google app for iOS, as well as update your app to support the discontinued Messenger domain. You can now update your app to offer a better user experience.