Question

如何从callback method AngularJs注册/订阅controller到AngularJs service？

我想在我的＆＃39; 加载程序＆＃39;时设置$scope.property值在我的服务中运行已达到100％。

我想从我的Boolean向我的true返回controller service。

我想到了以下内容： 在我的method中创建一个controller，该service已在我的service中注册，当我的this._scope.loaderHasLoaded = this._progressBarService.loaderHasCompleted.push(function done(): boolean{})中的加载程序达到100％时，该public loadingComplete():boolean{ if (this.isLoaderLoaded === true) { return true } else { return false; } } // some missing functionality public loaderHasCompleted =[];会被调用。我不确定自己是否走在正确的轨道上，以及如何填补缺失的部分。

控制器：

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服务

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非常感谢您的帮助！

Answer 1

在我的服务中，我有以下代码：

在服务中：

// declare an array that will hold all my callback functions to be called after the loader has completed
private _callbacks = [];

// The method that will be called from the Controller to push the callback method into the _callbacks array
public listenLoadedComplete(callback: Function) {
    this._callbacks.push(callback);
}

// In the actual loader method set the isLoaded variable to true and call the loadingComplete method
this.isLoaderLoaded = true;
this.loadingComplete();

// The loadingCompleted method executes each registered method in the _callback array
public loadingComplete(): boolean {
    if (this.isLoaderLoaded === true) {
        for (let cb of this._callbacks) {
            cb();
        }
        return true
    } else {
        return false;
    }
}

在控制器中：

// Call the listenForLoadCompletion method
this.listenForLoadCompletion();

// Register the callback function in the _callback array in the Service
// After the service has completed and called the method loadingComplete, the callback will be called
public listenForLoadCompletion(): void {
    this._progressBarService.listenLoadedComplete(() => {
        this._scope.loaderHasLoaded = true;
    });
}

在服务中使用TypeScript触发AngularJs中的回调时，调用服务中的回调函数

1 个答案: