Ionic 2，Angular 2;在启动时调用特定功能

Question

有没有什么方法可以在我进入特定页面时调用特定功能？ 就像我想在一个div标签的页面末尾调用一个函数，所以当用户打开该页面时，div也会触发该函数。

Answer 1

下面是解决方案使用它，它会帮助你。

// Annotation section 
@Component({ 
    selector: 'street-map', 
    template: '<map-window></map-window><map-controls></map-controls>', 
}) 
// Component controller 
class StreetMap { 
    ngOnInit() { //here you can call the function wanted 
    // Properties are resolved and things like 
    // this.mapWindow and this.mapControls 
    // had a chance to resolve from the 
    // two child components <map-window> and <map-controls> 
    } 
} 

这里是更多细节。 http://learnangular2.com/lifecycle/