Assistant sharing

Users on Android phones can ask Google Assistant to share app content with another user using a voice command like "Hey Google, send this to Jane." Based on the first user's system options, Assistant can then incorporate text from the screen or a device screenshot in the shared content.

The Assistant inserts a selected photo into a message when
Figure 1. Assistant shares a photo with a contact.

This method of sharing is often sufficient, but users who receive content shared from your app might not re-enter the app to view content. You can provide Assistant with structured information about the current foreground content by implementing the onProvideAssistContent() method.

This process helps maintain the structure of data as it's shared to another user. Users who receive shared app content can then be deep linked or receive content directly, instead of as text or as a screenshot.

Implement onProvideAssistContent() for any sharable entity in your app.

Provide content to Assistant

You only need to implement onProvideAssistContent() for the final app activity in the user's task flow after invoking the App Action. For example, in a CREATE_MONEY_TRANSFER flow, implement the method in the final screen showing the receipt; you don't need to implement it for any in-progress or preview screens.

Provide contextual information as a JSON-LD object using vocabulary in the structuredData field of AssistContent. The following code snippet shows an example of logging contextual content:

override fun onProvideAssistContent(outContent: AssistContent) {

    // JSON-LD object based on structured data
    outContent.structuredData = JSONObject()
            .put("@type", "MenuItem")
            .put("name", "Blueberry Crisp Iced Signature Latte")
            .put("url", "")
public void onProvideAssistContent(AssistContent outContent) {

  // JSON-LD object based on structured data
  outContent.structuredData = new JSONObject()
          .put("@type", "MenuItem")
          .put("name", "Blueberry Crisp Iced Signature Latte")
          .put("url", "")

Provide as much data as possible about each entity. The following fields are required:

  • @type
  • .name
  • .url (only required if the content is URL-addressable)

To learn more about using onProvideAssistContent(), see the Optimizing Contextual Content for the Assistant guide.