应用程序终止时,通知点击时不会打开特定视图

Question

我在工作的推送通知Xamarin.Forms使用Plugin.FirebasePushNotification.当应用终止(从任务栏中杀死)时,通知不会打开特定视图.

当应用程序打开或在后台打开时,我可以在单击通知时导航到特定页面.这是Application类

public class AppClass : Android.App.Application, Android.App.Application.IActivityLifecycleCallbacks
{
    public override void OnCreate()
    {
        base.OnCreate();
        RegisterActivityLifecycleCallbacks(this);
        FirebasePushNotificationManager.Initialize(this,false,true);
        var instanceid = FirebaseInstanceId.Instance.Token;
    }
}

MainActivity类

protected override void OnCreate(Bundle savedInstanceState)
{
    TabLayoutResource = Resource.Layout.Tabbar;
    ToolbarResource = Resource.Layout.Toolbar;
    base.OnCreate(savedInstanceState);
    global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
    LoadApplication(new App());
}

protected override void OnNewIntent(Intent intent)
{
    base.OnNewIntent(intent);
    FirebasePushNotificationManager.ProcessIntent(this, intent);
}

共享项目中的App.xaml.cs类

protected override void OnStart()
{
    CrossFirebasePushNotification.Current.OnNotificationOpened += (s, p) =>
    {
        if (p.Data.ContainsKey("color"))
        {
        Device.BeginInvokeOnMainThread(() =>
        {
            Xamarin.Forms.Application.Current.MainPage.Navigation.PushModalAsync(new Page1()
            {
                BackgroundColor = Color.FromHex($"{p.Data["color"]}")
            });
        });
        }
    };
}

这是我从Postman发送的有效载荷

{ 
 "to":"dhNe4U_jSDo:APA91bHhupDfnqW5Y9EBIfWV-uQVmq_HyPXTzBZ_TnSfM-7cDEq8SUFDLeudA4vWzyMj28E8A_c5HS0F2f5xT8quWZHcmWL8RJEbeDNre3RMsuY7brcAxqQMQOMCDcVXWDsl7s15l-NC", 
 "notification" : {
 "body" : "New announcement assigned",
 "content_available" : true,
 "priority" : "max",
 "color":"Page1",
 "content_available" : true,
 "title": "notification TITLE",
 "content_available" : true,
 "body": "notification BODY",
 },
 "data" : {
 "OrganizationId":"2",
 "color":"Page1",
 "click_action":"MainActivity"
 "sectionId":"33",
 "priority" : "high",
 "title": "notification TITLE",
 "content_available" : true,
 "body": "notification BODY",
}
}

这是我的宣言课

<application android:label="FCMPush.Android">
    <uses-permission android:name="android.permission.INTERNET" />
    <receiver
      android:name="com.google.firebase.iid.FirebaseInstanceIdInternalReceiver" 
      android:exported="false" />
    <receiver
          android:name="com.google.firebase.iid.FirebaseInstanceIdReceiver"
          android:exported="true"
          android:permission="com.google.android.c2dm.permission.SEND">
        <intent-filter>
          <action android:name="com.google.android.c2dm.intent.RECEIVE" />
          <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
          <category android:name="${applicationId}" />
        </intent-filter>      
    </receiver>
</application>

我也在GitHub上分配了这个问题.谢谢.

Answer 1

嗯，我不太确定问题可能出在哪里。但是，如果我们看一下文档：https://github.com/CrossGeeks/FirebasePushNotificationPlugin/blob/master/docs/GettingStarted.md，您可以尝试以下几种操作。

首先设置Exported = true并LaunchMode = LaunchMode.SingleTop在你的MainActivity. 也定FirebasePushNotificationManager.ProcessIntent(this, Intent);在你的onCreate()，就在之后LoadApplication(new App());。

请注意，从 Android 8.0 开始，您还必须在应用程序中设置DefaultNotificationChannelId和。DefaultNotificationChannelNameonCreate()

然后，如果您有一个SplashActivity，请确保添加MainLauncher = true, NoHistory = true到其中，并在 中添加以下代码onCreate()：

var mainIntent = new Intent(Application.Context, typeof(MainActivity));

 if (Intent.Extras != null) {
     mainIntent.PutExtras(Intent.Extras);
 }
 mainIntent.SetFlags(ActivityFlags.SingleTop);
 StartActivity(mainIntent);

我还建议您查看存储库的以下文件夹：https://github.com/CrossGeeks/FirebasePushNotificationPlugin/tree/master/samples/FirebasePushSample/FirebasePushSample.Android。如果您仔细遵循所有代码，它应该可以工作。