© Wallace Jackson 2017

Wallace Jackson, Android Apps for Absolute Beginners, 10.1007/978-1-4842-2268-3_6

6. Android User Interface Design: Using Activity, View, and ViewGroup Classes

Wallace Jackson

(1)Lompoc, California, USA

Now that you’ve been exposed to the Android 7 operating system and have seen how it works from a high-level view, using XML and Java, and how these are used in Android application development, the next thing we need to do is take a closer look at how Android addresses, or writes things to, a device screen, to display UI and content.

In this new age of touchscreen devices, such as smartphones, tablets, e-book readers, and smartwatches, your display screen has become the center of not only the visual feedback for the application ...

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