我正在使用react-native-firebase进行远程推送通知。当应用打开或在后台运行时，我能够收到通知。但是，当我取消该应用并将其从内存中删除时，一旦我从Firestore应用发送消息，就会在移动设备中崩溃。我遵循了完整的文档，并根据文档隐含了这些内容。应用程序崩溃的原因是什么？如何解决？
我的App.js
module subALU(A, B, func, ALUout);
input [3:0] A;
input [3:0] B;
input [2:0] func;
output reg[7:0] ALUout;
//A+1
wire [3:0] addA1;
wire addA2;
rippleCarryAdder add1(.A(A), .B(4'b0001), .cin(0), .s(addA1), .cout(addA2));
//A+B
wire [3:0] ab1;
wire ab2;
rippleCarryAdder add2(.A(A), .B(B), .cin(0), .s(ab1), .cout(ab2));
//A+B using Verilog
wire [3:0] abv;
wire abvo;
fourBitAdd add3(.X(A), .Y(B), .C(abv), .overflow(abvo));
always @(∗)
begin
case (func)
//A + 1
3'b000: ALUout[7:0] = {3'b000, addA2, addA1};
//A + B (Using rippleCarryAdder)
3'b001: ALUout = {3'b000, ab2, ab1};
//A + B (Using Verilog arithmetic)
3'b010: ALUout = {3'b000, abvo, abv};
//A XOR B in lower 4 bits, A OR B in higher 4
3'b011: ALUout = {A | B, A ^ B};
//A and B reduction OR
3'b100: ALUout = {7'b0000000, |(A|B)};
//A in leftmost 4 bits, B in rightmost 4 bits
3'b101: ALUout = {A, B};
//Display 0
default: ALUout = 8'b00000000
endcase
end
AndroidManifest.xml
import React, {Component} from 'react';
import {Platform, StyleSheet, Text, View} from 'react-native';
import firebase from 'react-native-firebase';
import type { Notification, NotificationOpen } from 'react-native-firebase';
const instructions = Platform.select({
ios: 'Press Cmd+R to reload,\n' + 'Cmd+D or shake for dev menu',
android:
'Double tap R on your keyboard to reload,\n' +
'Shake or press menu button for dev menu',
});
export default class App extends Component {
async componentDidMount() {
const notificationOpen: NotificationOpen = await firebase.notifications().getInitialNotification();
if (notificationOpen) {
const action = notificationOpen.action;
const notification: Notification = notificationOpen.notification;
var seen = [];
alert(JSON.stringify(notification.data, function(key, val) {
if (val != null && typeof val == "object") {
if (seen.indexOf(val) >= 0) {
return;
}
seen.push(val);
}
return val;
}));
}
const channel = new firebase.notifications.Android.Channel('test-channel', 'Test Channel', firebase.notifications.Android.Importance.Max)
.setDescription('My apps test channel');
// Create the channel
firebase.notifications().android.createChannel(channel);
this.notificationDisplayedListener = firebase.notifications().onNotificationDisplayed((notification: Notification) => {
// Process your notification as required
// ANDROID: Remote notifications do not contain the channel ID. You will have to specify this manually if you'd like to re-display the notification.
});
this.notificationListener = firebase.notifications().onNotification((notification: Notification) => {
// Process your notification as required
notification
.android.setChannelId('test-channel')
.android.setSmallIcon('ic_launcher');
firebase.notifications()
.displayNotification(notification);
});
this.notificationOpenedListener = firebase.notifications().onNotificationOpened((notificationOpen: NotificationOpen) => {
// 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;
var seen = [];
alert(JSON.stringify(notification.data, function(key, val) {
if (val != null && typeof val == "object") {
if (seen.indexOf(val) >= 0) {
return;
}
seen.push(val);
}
return val;
}));
firebase.notifications().removeDeliveredNotification(notification.notificationId);
});
}
componentWillUnmount() {
console.log("unmount called");
this.notificationDisplayedListener();
this.notificationListener();
this.notificationOpenedListener();
}
componentWillMount(){
if (!firebase.apps.length) {
firebase.initializeApp({
clientId: 'my client id-',
appId: 'my app id',
apiKey: "my api key",
authDomain: "fcm-auth domain
databaseURL: "database url
projectId: "fcm-app-id,
storageBucket: "fcm-app-BUCKET
messagingSenderId: "sender id
});
}
firebase.messaging().getToken()
.then(fcmToken => {
if (fcmToken) {
console.log(fcmToken)
} else {
console.log("no token")
}
});
firebase.messaging().hasPermission()
.then(enabled => {
if (enabled) {
// user has permissions
console.log("user has permission")
} else {
// user doesn't have permission
console.log("user don't has permission")
}
});
}
render() {
return (
<View style={styles.container}>
<Text style={styles.welcome}>Welcome to React Native!</Text>
<Text style={styles.instructions}>To get started, edit App.js</Text>
<Text style={styles.instructions}>{instructions}</Text>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
app / build.gradle
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.fcm">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.VIBRATE" />
<application
android:name=".MainApplication"
android:label="@string/app_name"
android:icon="@mipmap/ic_launcher"
android:allowBackup="false"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
android:windowSoftInputMode="adjustResize" android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
<service android:name="io.invertase.firebase.messaging.RNFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<service android:name="io.invertase.firebase.messaging.RNFirebaseInstanceIdService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
<service android:name="io.invertase.firebase.messaging.RNFirebaseBackgroundMessagingService" />
</application>
</manifest>