点击从 WorkManager 发送的通知时使用导航组件启动特定片段

Question

我根据使用 BroadcastReceiver 启动的 Worker 的条件向用户发送每日通知。来自 Worker 我只有 context 用于发送通知。

NotificationCompat.Builder(context, CHANNEL_ID).apply {
    setContentTitle(...)
    setContentText(...)
    setContentIntent(pendingIntent(context)) 
}.build()

如何创建 PendingIntent 以使用导航组件启动特定片段？

我试过这个：

fun pendingIntent(context: Context): PendingIntent {
    val navController = NavController(context.applicationContext)
    navController.setGraph(R.navigation.your_navigation)
    return navController.createDeepLink()
        .setDestination(R.id.yourFragment)
        .createPendingIntent()
}

但我遇到以下异常：

Caused by: java.lang.RuntimeException: Exception inflating package.name:navigation/your_navigation line 7
        at androidx.navigation.NavInflater.inflate(NavInflater.java:90)
        at androidx.navigation.NavController.setGraph(NavController.java:425)
        at androidx.navigation.NavController.setGraph(NavController.java:407)
        at 
        ......
        at package.name.Worker.doWork(Worker.kt:15)
        at androidx.work.Worker.run(Worker.java:85)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607) 
        at java.lang.Thread.run(Thread.java:761) 
Caused by: java.lang.IllegalStateException: Could not find Navigator with name "fragment". You must call NavController.addNavigator() for each navigation type.
        at androidx.navigation.NavigatorProvider.getNavigator(NavigatorProvider.java:98)
        at androidx.navigation.NavInflater.inflate(NavInflater.java:100)
        at androidx.navigation.NavInflater.inflate(NavInflater.java:132)
        at androidx.navigation.NavInflater.inflate(NavInflater.java:81)
        at androidx.navigation.NavController.setGraph(NavController.java:425) 
        at androidx.navigation.NavController.setGraph(NavController.java:407) 
        at package.name.NotificationKt.pendingIntent(Notification.kt:57) 
        at package.name.buildNotificationFor(Notification.kt:50) 
        at package.name.showNotificationFor(Notification.kt:22) 
        at package.name.doWork(Worker.kt:15) 
        at androidx.work.Worker.run(Worker.java:85)

Answer 1

根据 Create an explicit deep link documentation, you should be using the NavDeepLinkBuilder class:

fun pendingIntent(context: Context): PendingIntent {
    return NavDeepLinkBuilder(context)
       .setGraph(R.navigation.your_navigation)
       .setDestination(R.id.android)
       .createPendingIntent()
}

Answer 2

这个答案更适合@Alexa289 here但是提出的问题，因为问题是closed 因为这是@ianhanniballeke 提供的类似问题和答案就足够了。我不得不在这里写下答案。 @ianhanniballake 提供的答案非常出色，但它仅在处理扩展 FirebaseMessagingService() 的 class 的 onMessageReceived() 时适用于特定条件。当 activity 处于前台时，服务提供基于 activity 的上下文，因此代码工作正常，但是当 activity 不在前台时，class 提供基于服务的上下文，因此从 NavDeepLinkBuilder 创建的 pendingIntent 的工作方式不同。所以这里是我针对非前景案例的解决方案。首先，通过通常的方式创建pendingIntent

fun pendingIntent(context: Context): PendingIntent {
    return NavDeepLinkBuilder(context)
       .setGraph(R.navigation.your_navigation)
       .setDestination(R.id.android)
       .createPendingIntent()
}

然后您需要通过 android 清单中的 Intent 过滤器捕获未决 Intent

        <intent-filter>
            <action android:name="*TheClassNameOfFragmentYourDestinationPointsTo*" />
            <category android:name="android.intent.category.DEFAULT"/>
        </intent-filter>

然后从主页片段中，您可以像这样获取启动 activity 的意图

val intent = (activity as? AppCompatActivity)?.intent

从 intent 您可以提取捆绑包中的额外内容，然后导航到您想要喜欢的片段

findNavController().navigate(R.id.android)

点击从 WorkManager 发送的通知时使用导航组件启动特定片段

Launch a particular Fragment using Navigation component when tapped on Notification that is sent from WorkManager

java

android

kotlin

android-architecture-components

android-workmanager