Android Studio xml preview closes automatically

Question

I am using Android Studio 2.2.3. While clicking on the UI components in the xml code the preview window closes automatically. Again while selecting on the preview, the window appears and again when select the xml code the window disappears. Is there any fix available?

Answer 1

Enable pinned mode and docked mode by right click on preview from left of window.

OR:

Select the Preview Window > Go to Window menu > Active Tool Window > Docked mode