getInitialNotification 获取空值

Question

当从托盘中单击noification时，会触发getInitialNotification，但通知打开参数会获得空值。

我正在通过火力控制台发送通知。如果我的应用位于前台，我会收到正在发送的通知数据。但是，如果我的应用程序处于后台或应用程序被终止，我会收到通知，但当我点击通知时，openNotification 的值为 null。

This.is 我正在做的事情。

firebase.notifications().getInitialNotification()
.then((notificationOpen: NotificationOpen) => {
console.log('Notification closed')
console.log(notificationOpen)
if (notificationOpen) {
// App was opened by a notification
// Get the action triggered by the notification being opened
const action = notificationOpen.action;
// Get information about the notification that was opened
const notification: Notification = notificationOpen.notification;  
}
})

Answer 1

创建SplashActivity.java和下面的代码

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class SplashActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = new Intent(this, MainActivity.class);
// this line is necessary to open notification when app is closed
intent.putExtras(this.getIntent());
startActivity(intent);
finish();
}
}

将启动活动添加到AndroidManifest.xml

...
<activity
android:name=".SplashActivity"
android:theme="@style/SplashTheme"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
...

将启动资源添加到样式.xml

...
<style name="SplashTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowBackground">@drawable/background_splash</item>
<item name="android:statusBarColor">@color/darkblue</item>
</style>
...

创建background_splash.xml并创建要在应用启动时显示的资源

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:drawable="@color/blue"/>
<item android:gravity="center">
<bitmap
android:tileMode="disabled"
android:src="@drawable/ic_launcher"
android:gravity="center" />
</item>
</layer-list>

Answer 2

您应该在应用中实现getInitialNotification和notificationOpenedListener，具体取决于应用的状态，当您点击通知时会调用其中一个，但您可以确定只会调用其中的 1 个。

firebase
.notifications()
.getInitialNotification()
.then(notificationOpen => {
if (notificationOpen) {
}
});

this.notificationOpenedListener = firebase
.notifications()
.onNotificationOpened(() => {
});