Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Hands-On Android UI Development
  • Toc
  • feedback
Hands-On Android UI Development

Hands-On Android UI Development

By : Jason Morris
3.8 (4)
close
Hands-On Android UI Development

Hands-On Android UI Development

3.8 (4)
By: Jason Morris

Overview of this book

A great user interface (UI) can spell the difference between success and failure for any new application. This book will show you not just how to code great UIs, but how to design them as well. It will take novice Android developers on a journey, showing them how to leverage the Android platform to produce stunning Android applications. Begin with the basics of creating Android applications and then move on to topics such as screen and layout design. Next, learn about techniques that will help improve performance for your application. Also, explore how to create reactive applications that are fast, animated, and guide the user toward their goals with minimal distraction. Understand Android architecture components and learn how to build your application to automatically respond to changes made by the user. Great platforms are not always enough, so this book also focuses on creating custom components, layout managers, and 2D graphics. Also, explore many tips and best practices to ease your UI development process. By the end, you'll be able to design and build not only amazing UIs, but also systems that provide the best possible user experience.
Table of Contents (15 chapters)
close
13
Activity Lifecycle

Creating the Attachment Pager


Having modularized the category picker, it's time to turn your attention to the attachments. When you implemented the file selection, you left a Toast in place to show where the code would normally attach the selected file to the ClaimItem being captured. This next stage will be to create a Fragment that will encapsulate the previewing of the Attachment objects. You'll also move much of the attachment logic into this Fragment. Although the code to connect to other applications and request permissions is commonly placed in an Activity class, Fragment classes are also capable of performing the same actions, and the attachment pager is a perfect opportunity to show this off.

This Fragment will show a pattern where the Fragment interacts with the Activity that it belongs to without directly sending events upward. The instinct of most developers when encountering a Fragment for the first time is to use the pattern in the template where the Fragment can send events...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist download font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete