收到通知Xamarin表单时运行Sqlite代码

Question

我正在尝试运行SQLite代码，而应用程序在Xamarin Forms App中收到了来自Firebase的通知，首先，我安装此插件Plugin.FirebasePushNotification并添加此权限：

<uses-permission android:name="android.permission.INTERNET" />

然后将此类添加到mu android project

    [Application]
public class MainApplication : Application
{
    public MainApplication(IntPtr handle, JniHandleOwnership transer) : base(handle, transer)
    {
    }

    public override void OnCreate()
    {
        base.OnCreate();

        //Set the default notification channel for your app when running Android Oreo
        if (Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.O)
        {
            //Change for your default notification channel id here
            FirebasePushNotificationManager.DefaultNotificationChannelId = "FirebasePushNotificationChannel";

            //Change for your default notification channel name here
            FirebasePushNotificationManager.DefaultNotificationChannelName = "General";
        }


        //If debug you should reset the token each time.
        FirebasePushNotificationManager.Initialize(this, true);
        //Handle notification when app is closed here
        CrossFirebasePushNotification.Current.OnNotificationReceived += (s, p) =>
        {

        };
    }
}

并且在加载应用程序后的主活动类中，我添加以下行

FirebasePushNotificationManager.ProcessIntent(this, Intent);

并且在我的app.cs中，我像这样处理OnReceived事件

        protected override void OnStart()
    {
        CrossFirebasePushNotification.Current.Subscribe("general");
        CrossFirebasePushNotification.Current.OnNotificationReceived += Current_OnNotificationReceived;
    }

    private void Current_OnNotificationReceived(object source, FirebasePushNotificationDataEventArgs e)
    {
        var notification = new AJNotification {Id = "1"};
        if (e.Data.ContainsKey("body"))
        {
            notification.Body = $"{e.Data["body"]}";                    
        }
        if (e.Data.ContainsKey("title"))
        {
            notification.Title = e.Data["title"].ToString();
        }
        if (e.Data.ContainsKey("silent"))
        {
            notification.Silent = e.Data["silent"].ToString();
        }
        _sqliteService.SaveItem(notification);
    }

然后，我发送了一个静音属性等于true的通知，例如当应用程序已经被“杀死”，然后我从Visual Studio重新运行应用程序并跟踪代码以查看数据是否保存在SQLite中但我没有得到数据

Answer 1

https://github.com/CrossGeeks/FirebasePushNotificationPlugin

但是您仍然需要在AndroidManifest.xml中添加以上代码，并运行此示例，您将成功获得。