Updated: 01-August-2017 Android Eclipse IDE, main_activity.xml Graphical Mobile GUI interface is not visible ? Ans. To solve above problem change ‘API 24’ to ‘API 19’ as shown in below image. After changing API 24 to API 19… Download as PDF Share this:Click to share on Facebook (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)