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swiftfluttermobileflutter-dependenciescarplay

Issues in flutter carplay


I am using Flutter CarPlay and experiencing the following issues:

When opening CarPlay without first opening the app on mobile, a blank screen appears. After killing the app on mobile, CarPlay shows a blank screen, which is only resolved by reconnecting to CarPlay. When the device is locked, I am unable to call APIs from the mobile app. Is there a way to fix these issues? If not, could you provide any alternatives or resources on how to address them?


Solution

  • 1. Blank Screen on CarPlay When App Is Not Opened on Mobile Cause: CarPlay might require the app to initialize fully on the mobile device before it can display content on CarPlay.

    Fix:

    Ensure that your app's CarPlay extension properly initializes and handles the required setup when launched independently of the main app.
    Implement a didFinishLaunchingWithOptions handler in your iOS App Delegate to ensure CarPlay sessions initialize correctly.
    Test your app using the latest version of the Flutter CarPlay plugin or alternative libraries, ensuring compatibility with the latest iOS version.

    2. Blank Screen After Killing the Mobile App Cause: Killing the app might terminate essential background processes required for CarPlay functionality.

    Fix:

    Implement a mechanism to restart the CarPlay session automatically. This might involve using UIApplicationDelegate methods to detect when the app is terminated and relaunch the CarPlay service. Enable background modes for "Audio, AirPlay, and Picture in Picture" and "Background fetch" in your app's capabilities to ensure the app remains responsive to CarPlay even after being killed. Ensure the app adheres to CarPlay's lifecycle requirements by checking the CarPlay interface's connection status and reinitializing if needed.