How to Implement a Full Screen Button in View Header?

In SAPUI5 demokit, I found there is a full screen button for chartContainer. Also in a explored example, the detail header has a full screen button as well.

see https://sapui5.hana.ondemand.com/sdk/explored.html#/sample/sap.suite.ui.commons.sample.ChartContainer/preview

I would like to implement such a full screen button in header of my detail view. But How to implement it?

thanks,

Yang