利用android/java中JavaScript编写的函数在同一应用中实现多种类型的通知

// 创建WebView组件
WebView webView = new WebView(context);

// 启用JavaScript支持
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);

// 创建Java对象，供JavaScript调用
NotificationHandler notificationHandler = new NotificationHandler(context);
webView.addJavascriptInterface(notificationHandler, "notificationHandler");

// 加载包含JavaScript代码的HTML文件
webView.loadUrl("file:///android_asset/notification.html");

// 创建普通通知
function createNormalNotification() {
    var notification = new Notification("普通通知", {
        body: "这是一个普通通知",
        icon: "icon.png"
    });
}

// 创建带有进度条的通知
function createProgressNotification() {
    var notification = new Notification("进度通知", {
        body: "正在下载文件...",
        icon: "icon.png"
    });

    var progress = 0;
    var interval = setInterval(function() {
        if (progress < 100) {
            progress += 10;
            notification.updateProgress(progress);
        } else {
            clearInterval(interval);
            notification.close();
        }
    }, 1000);
}

// 创建自定义布局的通知
function createCustomNotification() {
    var notification = new Notification("自定义通知", {
        body: "这是一个自定义通知",
        icon: "icon.png"
    });

    notification.showCustomLayout("custom_layout.html");
}

public class NotificationHandler {
    private Context context;

    public NotificationHandler(Context context) {
        this.context = context;
    }

    @JavascriptInterface
    public void updateProgress(int progress) {
        // 更新通知的进度条
    }

    @JavascriptInterface
    public void closeNotification() {
        // 关闭通知
    }

    @JavascriptInterface
    public void showCustomLayout(String layoutUrl) {
        // 显示自定义布局的通知
    }
}