The Drive User Interface (UI) is a Google-provided application allowing Drive users to create, organize, discover, and share content stored on Google Drive. You can integrate your Drive-enabled app with the Drive UI to take advantage of these features. There are two integrations you can perform:
- Integrate with the Drive UI's "New" button.
- Integrate with the Drive UI's "Open with" menu item.
Drive UI's "New" button
The "New" button allows users to launch editor-style apps, such as Google Docs and Sheets, with a new document. Figure 1 shows the Drive UI's "New" button.

If you want Drive UI users to be able to call your app to create a new file, integrate your app with the Drive UI's "New" button.
Drive UI's "Open with" menu item
When a user right clicks on a file in the Drive UI, a context menu appears. This menu contains an "Open with" item allowing the user to select an application to use to open the file. Figure 2 shows the Drive UI's "Open with" menu.

If you want Drive UI users to be able to load documents with your app, integrate your app with the Drive UI's "Open with" menu item.
Next step
For instructions on how to begin your integration, continue to Configure a Drive UI integration