android studio update textview with buttion

Such events fall into the category of input events. The most common form of events, particularly for devices such as tablets and smartphones, involve some form of interaction with the touch screen. Once the basics of event handling have been covered, the next chapter will cover touch event handling in terms of detecting multiple touches and touch motion.Įvents in Android can take a variety of different forms, but are usually generated in response to an external action. The primary objective of this chapter, therefore, is to provide an overview of event handling in Android applications together with an Android Studio based example project. In other words, we know from the previous chapters how to create a user interface containing a button view, but not how to make something happen within the application when it is touched by the user. An area that has yet to be covered, however, involves the way in which a user’s interaction with the user interface triggers the underlying activity to perform a task. Much has been covered in the previous chapters relating to the design of user interfaces for Android applications. Purchase the fully updated Android Studio Dolphin Edition of this publication in eBook ($29.99) or Print ($49.99) formatĪndroid Studio Dolphin Essentials - Java Edition Print and eBook (PDF) editions contain 87 chapters and over 800 pages You are currently reading the Android Studio 1.x - Android 5 Edition of this book.

Android studio update textview with buttion