绑定到元素的大小(div) [英] Bind to size of element (div)

问题描述

我有一个具有Width和Height属性的组件.如何将组件的视图高度和宽度绑定到这些属性?

I have a component with Width and Height properties. How can I bind component's view height and width to these properties?

只要组件尺寸也发生变化，我就需要更新它们，即通过调整浏览器窗口的大小.

I need them to be updated whenever component size changes too, i.e. by re-sizing the browser window.

推荐答案

使用(window:resize)="onResize($event)"监听全局事件.您可以使用window，document或body作为目标.参见此小品

Use (window:resize)="onResize($event)" to listen to global events. You can use window, document or body as targets. See this plunk

@Component({
  selector: 'my-app',
  template: `
    <div 
      class="square"
      [style.width.px]="width" 
      [style.height.px]="height"
      (window:resize)="onResize($event)"
    ></div>
  `
})
export class App {
  width = 100;
  height = 100;

  onResize(event) {
    this.width += 100;
    this.height += 100;
  }
}

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