Android : Show layout from the bottom of the screen on button click

Recently i have installed an application from the play store named walnut where i saw a new feature for popup.In the home screen there is a FloatingActionMenu,when clicking on the menu button it will expand with the items on it,on top of that expanded menu there is an option for add account, and on clicking that option a popup will come from the bottom of the screen to a certain height.I likes to know what feature is used for that popup from the bottom of the screen.Is it really a popup or sliding drawer? I want to use exactly the same feature in my android application.If anyone knows about this feature please help me.Below is the screenshot of this popup layout that comes on button click in walnut application.