如何使用changeDetection:ChangeDetectionStrategy。在angular2 OnPush

I have simple angular2 application. The application has only one component with ChangeDetectionStrategy.OnPush. The problem is the component never refresh its view. How to make the component refresh itself after data array updated? Here the code. I'm using Angular 2.0.0-rc.4.I have simple angular2 application. The applica