当点击第二次时，角的ng-点击切换。

Trying to figure simplest implementation for having a button using ng-click to toggle if a user selects it a second time and then back if they click a third time. Basically, what I have now is using a ng-click with a ng-show with 4 different buttons, An example is shown below and it works, but my requirement now is that if the user selects the button again, it unshows the div below. Didn't think it was good practice using ng-show and ng-hide together for this and cannot see how ng-toggle would work. Any help please?Trying to figure simplest implementation for ha