It is a simple step, performed with a remarkable ease. You just have to pop-up the display window with various buttons/tabs options on it. Before performing the dialogue option, you will need to download or import an Android application for AlertDialog onto your handset. Google has AlertDialog applications to show in dialog box, where you can perform hide or show function.
Once the AlertDialog displays on your mobile phone handset's screen, you can either press show or hid button, getting the same result. If the dialogue box shows show tab, you just need to press it and it will change to the Show Alertdialog.
If your screens the hide option on your handset's tab, simply press it and it will hid the dialogue in the box. Both functions are performed with a dead ease and there is no problem in the process as such.