Book Image

Android Studio 3.5 Development Essentials - Java Edition

By : Neil Smyth
Book Image

Android Studio 3.5 Development Essentials - Java Edition

By: Neil Smyth

Overview of this book

Android applications have become an important part of our daily lives and lots of effort goes into developing an Android application. This book will help you to build you own Android applications using Java. Android Studio 3.5 Development Essentials – Java Edition first teaches you to install Android development and test environment on different operating systems. Next, you will create an Android app and a virtual device in Android Studio, and install an Android application on emulator. You will test apps on physical Android devices, then study Android Studio code editor and constraint layout, Android architecture, the anatomy of an Android app, and Android activity state changes. The book then covers advanced topics such as views and widgets implementation, multi-window support integration, and biometric authentication, and finally, you will learn to upload your app to Google Play console and handle the build process with Gradle. By the end of this book, you will have gained enough knowledge to develop powerful Android applications using Java.
Table of Contents (86 chapters)
86
Index

42.2 Preparing the Project Files

The first example transition animation will be implemented through the use of the beginDelayedTransition() method of the TransitionManager class. If Android Studio does not automatically load the file, locate and double-click on the app -> res -> layout -> activity_main.xml file in the Project tool window panel to load it into the Layout Editor tool.

Switch the Layout Editor to Design mode, delete the “Hello World!” TextView, drag a Button from the Widget section of the Layout Editor palette and position it in the top left-hand corner of the device screen layout. Once positioned, select the button and use the Attributes tool window to specify an ID value of myButton.

Select the ConstraintLayout entry in the Component Tree tool window and use the Attributes window to set the ID to myLayout.