Notify users when connection is restored
People often switch their phone to airplane or data-off mode to save data, cost, and battery life. Design with these experiences in mind. One method is to provide a notification to alert users when the app or content is online again and able to complete their request. For example, videos, search queries, or messages can be queued up so that when the connection is restored, users are notified about the content waiting for them. Using this approach, the system serves the content without the user losing a sense of trust or responsiveness when offline.
Be sure to communicate these actions and updates within your UI. Use a snackbar—a single line of text directly related to the operation performed—to show that the app is waiting for a connection to download. For example, a snackbar with the text “Your search result is ready” informs the user that their query has been answered.