Question

嗨，我是本机反应新手，我只是在android上进行推送通知测试。但是当我通过expo客户端在android设备上进行测试时，没有振动或声音。

但是，当我通过expo客户端在android设备上打开应用程序时，确实会显示推送通知，但是即使我已经将它们设置为true，也没有声音没有振动。

我希望发出通知，而不是每天关闭上午8点通知用户，即使该应用已关闭，我也可以发出通知吗？

async componentWillMount() {
    let result = await Permissions.getAsync(Permissions.NOTIFICATIONS);
    if (result.status === "granted" && this.state.switchStatus) {
      console.log("Notification permissions granted.");
      this.setNotifications();
    } else {
      console.log("No Permission", Constants.lisDevice);
    }

    this.listenForNotifications();
  }
  getNotification(date) {
    const localNotification = {
      title: `Notification at ${date.toLocaleTimeString()}`,
      body: "N'oubliez pas de prendre tes medicament",
      ios: {

        sound: true 
      },

      android: {
        sound: true, 
        priority: "max", 
        sticky: false, 
        vibrate: true 
      }
    };
    return localNotification;
  }
  setNotifications() {
    Notifications.cancelAllScheduledNotificationsAsync();

    for (let i = 0; i < 64; i++) {
      //Maximum schedule notification is 64 on ios.
      let t = new Date();
      if (i === 0) {
        t.setSeconds(t.getSeconds() + 1);
      } else {
        t.setMinutes(t.getMinutes() + 1 + i * 1);
      }
      const schedulingOptions = {
        time: t 
      };
      Notifications.scheduleLocalNotificationAsync(
        this.getNotification(t),
        schedulingOptions
      );
    }
  }
  listenForNotifications = () => {
    Notifications.addListener(notification => {
      console.log("received notification", notification);
    });
  };

Answer 1

我发现了声音和振动的解决方案，这并不是最好的解决方案，因为我说我是RN的新手，但它仍然有效（我使用了此方法：“ create Channel Android Async”）

async componentWillMount() {
    let result = await Permissions.getAsync(Permissions.NOTIFICATIONS);
    if (result.status === "granted" && this.state.switchStatus) {
    // i add this :
      if (Platform.OS === 'android') {
  Notifications.createChannelAndroidAsync('chat-messages', {
    name: 'Chat messages',
    sound: true,
    vibrate: true,
  });
}
      console.log("Notification permissions granted.");

      this.setNotifications();
    } else {
      console.log("No Permission", Constants.lisDevice);
    }

    this.listenForNotifications(); 
  }

  getNotification(date) {

    const localNotification = {
      title: `Notification at ${date.toLocaleTimeString()}`,
      body: "N'oubliez pas de prendre tes medicament", 
      ios: {

        sound: true 
      },

      android: {
       "channelId": "chat-messages" //and this
            }
    };
    return localNotification;
  }
  setNotifications() {
    Notifications.cancelAllScheduledNotificationsAsync();

    for (let i = 0; i < 64; i++) {
      //Maximum schedule notification is 64 on ios.
      let t = new Date();
      if (i === 0) {
        t.setSeconds(t.getSeconds() + 1);
      } else {
        t.setMinutes(t.getMinutes() + 1 + i * 1); // 15 Minutes
      }
      const schedulingOptions = {
        time: t 
      };
      Notifications.scheduleLocalNotificationAsync(
        this.getNotification(t),
        schedulingOptions
      );
    }
  }
  listenForNotifications = () => {
    Notifications.addListener(notification => {
      console.log("received notification", notification);
    });
  };

Answer 2

在我的情况下，我允许在（设置->通知->您的应用名称->声音->允许）中发出通知声音，并且后言效果很好

Answer 3

在您的 app.json 文件中，添加

android:{useNextNotificationApi:true }

Expo Client中的Android推送通知中没有声音或振动

3 个答案: