Question

我看得很远但我似乎无法通过本地通知插件在Ionic 3中找到任何回调函数的示例。通知工作正常，但我试图在每次通知后更改数据。这样下周的通知将有新的内容。

我可以获取新数据，但似乎无法更改已安排的通知。

Ionic version: 3.1.1
Node version: 6.10.0

我的notification-page.ts看起来像这样：

// This is where the data loads from the service.
// It happens when the view loads for the first time.
ionViewDidLoad() {

    // Get the JSON data from our itemApi
    this.itemApi.getItems().then(data => {

        this.items = data;

        let randomNumber = Math.floor(Math.random() * this.items.length)

        // Select the random object an pass it to the oneItem object
        this.oneItem = this.items[randomNumber];

    });

}



testNotification() {

        // The notification
        let notification = {
            id:1,
            title: this.oneItem.word,
            text: this.oneItem.description,
            every: "minute"
        };

        this.notifications.push(notification);

        if(this.platform.is('cordova')){

                // Cancel any existing notifications
                this.localNotifications.cancelAll().then(() => {

                    // Schedule the new notifications
                    this.localNotifications.schedule(this.notifications);

                    this.notifications = [];

                    let alert = this.alertController.create({
                        title: 'Notifications set',
                        buttons: ['Ok']
                    });

                    // Initializes the alert
                    alert.present();

                    // Creates a callback function on the schedule trigger - populates the notification with new data
                    this.localNotifications.on("schedule", function(){

                            // Get the JSON data from our itemApi
                            this.itemApi.getItems().then(data => {

                                this.items = data;

                                let randomNumber = Math.floor(Math.random() * this.items.length)

                                // Select the random object an pass it to the oneItem object
                                this.oneItem = this.items[randomNumber];

                            });

                            // The notification is created again in the callback
                            let notification = {
                                id:1,
                                title: this.oneItem.word,
                                text: this.oneItem.description,
                                every: "minute"
                            };

                            this.notifications.push(notification);

                    });
                    // Ends the callback function

                });

            }

}
// End of notification

我当前正试图使用我在文档中找到的on（＆＃34; schedule＆＃34;）回调。但是，我似乎无法让它发挥作用。

你有什么建议吗？

如何使用Ionic 3中的回调函数更改本地通知中的数据？

0 个答案: