October 2020
Beginner to intermediate
334 pages
6h 2m
English
What we’ll cover:
Listener objects
Anonymous inner classes
In the previous chapter, we already did some event handling. The part of the exercise where we incremented the TextView’s value for each button click was an exercise on declarative event handling . To bind a method name to a click event, we simply set a View’s android:onClick attribute to the name of a method in the associated Activity class. This is a low-ceremony and straightforward way to handle events but is limited to the “click” event. When you need to handle events like long clicks or gestures, you need to use event listeners—this ...