如何知道应用程序是否从 android 通知托盘打开？例如，我已经关闭了应用程序（从最近的应用程序列表中清除）。但我收到来自后端 websocket 的通知，我按下它，它打开了应用程序。所以我的问题是，有没有办法检查这是否从通知中打开？
【问题讨论】：
标签： android react-native react-native-push-notification
很简单，您可以在推送通知侦听器中接收通知负载
import PushNotification from 'react-native-push-notification'
configurePushNotifications = () => {
PushNotification.configure({
// (optional) Called when Token is generated (iOS and Android)
onRegister: function(token) {
console.log('PushNotification token', token)
},
onNotification 是您接收本地或远程通知的地方，当用户点击通知托盘时会调用它
onNotification: function(notification) {
console.log('notification received', notification)
},
// IOS ONLY (optional): default: all - Permissions to register.
permissions: {
alert: true,
badge: true,
sound: true,
},
// Should the initial notification be popped automatically
// default: true
popInitialNotification: true,
/**
* (optional) default: true
* - Specified if permissions (ios) and token (android and ios) will requested or not,
* - if not, you must call PushNotificationsHandler.requestPermissions() later
*/
requestPermissions: true,
})
}
这就是通知对象的样子
{
foreground: false, // BOOLEAN: If the notification was received in foreground or not
userInteraction: false, // BOOLEAN: If the notification was opened by the user from the notification area or not
message: 'My Notification Message', // STRING: The notification message
data: {}, // OBJECT: The push data
}
【讨论】：
查看react-native-push-notification 的来源+接下来的50行（最多setContentIntent），您可以检查意图中的“通知”额外内容。
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle bundle = getIntent().getBundleExtra("notification");
if(bundle != null){
//check if it is the bundle of your notification and do your thing
}
}
否则你可以使用 Native Module 方法：
当您设置传递给通知.setContentIntent() 方法的PendingIntent 时，请指定您随后在应用程序中恢复的操作。示例通知：
Intent intent = new Intent(context, MyActivity.class);
intent.setAction("OPEN_MY_APP_FROM_NOTIFICATION");
NotificationCompat.Builder mNotifyBuilder = NotificationCompat.Builder(this, CHANNEL)
.setContentTitle("Title")
.setContentIntent(PendingIntent.getActivity(this, REQUEST_CODE, intent, PendingIntent.FLAG_UPDATE_CURRENT))
mNotificationManager.notify(Notification_REQUEST_CODE,
mNotifyBuilder.build())
在 MyActivity.java 中
public void onCreate (Bundle savedInstanceState) {
// Get intent, action and MIME type
Intent intent = getIntent();
String action = intent.getAction();
if(action == "OPEN_MY_APP_FROM_NOTIFICATION"){
//do whatever you have to do here
}
}
【讨论】：