Book Image

Android Studio 4.1 Development Essentials – Java Edition

By : Neil Smyth
Book Image

Android Studio 4.1 Development Essentials – Java Edition

By: Neil Smyth

Overview of this book

For developers, Android 11 has a ton of new capabilities. The goal of this book is to teach the skills necessary to develop Android-based applications using the Java programming language. This book begins with the steps necessary to set up an Android development and testing environment. An overview of Android Studio along with the architecture of Android is covered next, followed by an in-depth look at the design of Android applications and user interfaces using the Android Studio environment. You will also learn about the Android architecture components along with some advanced topics such as touch screen handling, gesture recognition, the recording and playback of audio, app links, dynamic delivery, the AndroidStudio profiler, Gradle build configuration, and submitting apps to the Google Play Developer Console. The concepts of material design, including the use of floating action buttons, Snackbars, tabbed interfaces, card views, navigation drawers, and collapsing toolbars are a highlight of this book. This edition of the book also covers printing, transitions, and cloud-based file storage; the foldable device support is the cherry on the cake. By the end of this course, you will be able to develop Android 11 Apps using Android Studio 4.1, Java, and Android Jetpack. The code files for the book can be found here: https://www.ebookfrenzy.com/retail/androidstudio41/index.php
Table of Contents (88 chapters)
88
Index

44.8 Adding Position Keyframes

The final task for this tutorial is to add two position keyframes (KeyPosition) to the animation path to introduce some lateral movement in to the animation. With the transition timeline visible in the MotionLayout editor, click on the button to create a keyframe as highlighed in Figure 44-13 above and select the KeyPosition option from the menu as shown in Figure 44-21 below:

Figure 44-21

In the resulting dialog, set the properties as illustrated in Figure 44-22:

Figure 44-22

Click on the Add button to commit the change, then repeat the above steps to add a second position keyframe configured as follows:

Position: 75

Type: parentRelative

PercentX: 0.85

PercentY: 0.75

On completion of these changes, the following keyframe entries will have been added to the transition element in the activity_main_scene.xml file:

<KeyFrameSet>

.

.

   <KeyPosition

...