我有一个装有Android Studio的应用程序和一个装有Android 9的手机，我也使用Firebase云消息传递。
何时发送消息，到达手机，但如果应用程序在后台休眠，则只打开MainActivity的活动。
我有那个实现：
implementation 'com.google.firebase:firebase-auth:16.0.5'
implementation 'com.google.firebase:firebase-messaging:17.5.0'
implementation 'com.google.firebase:firebase-database:16.0.4'
implementation 'com.google.firebase:firebase-storage:16.0.4'
implementation 'com.google.firebase:firebase-firestore:17.1.2'
这是我在Android上的Java代码
private final String ADMIN_CHANNEL_ID ="admin_channel";
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
NotificationManager notificationManager =
(NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
int notificationID = new Random().nextInt(3000);
/*
Apps targeting SDK 26 or above (Android O) must implement notification channels and add its notifications
to at least one of them. Therefore, confirm if version is Oreo or higher, then setup notification channel
*/
System.out.println("Sdk " + Build.VERSION.SDK_INT);
Notification.Builder notificationBuilder = null;
final Intent intent = new Intent(this, DashboardActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TASK );
PendingIntent pendingIntent = PendingIntent.getActivity(this,
0, intent,PendingIntent.FLAG_UPDATE_CURRENT);
Uri notificationSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
//setupChannels(notificationManager);
CharSequence name = "New notification";
String description = "Device to devie notification";
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel channel = new NotificationChannel(ADMIN_CHANNEL_ID, name, importance);
channel.setDescription(description);
notificationManager.createNotificationChannel(channel);
notificationBuilder = new Notification.Builder(this, ADMIN_CHANNEL_ID)
.setSmallIcon(R.drawable.logopqno)
.setContentTitle(remoteMessage.getData().get("title"))
.setContentText(remoteMessage.getData().get("message"))
.setAutoCancel(true)
.setSound(notificationSoundUri)
.setOnlyAlertOnce(false)
.setChannelId(ADMIN_CHANNEL_ID)
.setContentIntent(pendingIntent);
} else {
notificationBuilder = new Notification.Builder(this, ADMIN_CHANNEL_ID)
.setSmallIcon(R.drawable.logopqno)
.setContentTitle(remoteMessage.getData().get("title"))
.setContentText(remoteMessage.getData().get("message"))
.setAutoCancel(true)
.setSound(notificationSoundUri)
.setOnlyAlertOnce(false)
.setContentIntent(pendingIntent);
}
//Set notification color to match your app color template
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
notificationBuilder.setColor(getResources().getColor(R.color.colorPrimaryDark));
}
notificationManager.notify(notificationID, notificationBuilder.build());
}
@RequiresApi(api = Build.VERSION_CODES.O)
private void setupChannels(NotificationManager notificationManager){
CharSequence adminChannelName = "New notification";
String adminChannelDescription = "Device to devie notification";
NotificationChannel adminChannel;
adminChannel = new NotificationChannel(ADMIN_CHANNEL_ID,
adminChannelName, NotificationManager.IMPORTANCE_HIGH);
adminChannel.setDescription(adminChannelDescription);
adminChannel.enableLights(true);
adminChannel.setLightColor(Color.RED);
adminChannel.enableVibration(true);
if (notificationManager != null) {
notificationManager.createNotificationChannel(adminChannel);
}
}
这是我的清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:dist="http://schemas.android.com/apk/distribution"
package="com.machinecare.app">
<uses-permission android:name="android.permission.VIBRATE" />
<dist:module dist:instant="true" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <!-- Added by @BM since 08 2019 Nov -->
<uses-permission android:name="android.permission.RECEIVE_WAP_PUSH" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:networkSecurityConfig="@xml/network_security_config"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".notification.DashboardActivity"
android:label="@string/title_activity_dashboard"
android:parentActivityName=".MainActivity"
android:theme="@style/AppTheme.NoActionBar" />
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".notification.MyFirebaseMessagingService"
android:permission="com.google.android.c2dm.permission.SEND">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<service android:name=".notification.MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
</application>
</manifest>
在 FCM 中，将Click_action设置为要打开的活动。
{
"to": "some_device_token",
"content_available": true,
"notification": {
"title": "hello",
"body": "yo",
"click_action": "Notification_activity" // for intent filter in your activity
},
"data": {
"extra": "juice"
}
在清单中添加意向筛选器.xml