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Mastering Android Development with Kotlin

You're reading from   Mastering Android Development with Kotlin Deep dive into the world of Android to create robust applications with Kotlin

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781788473699
Length 378 pages
Edition 1st Edition
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Author (1):
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Miloš Vasić Miloš Vasić
Author Profile Icon Miloš Vasić
Miloš Vasić
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Table of Contents (17) Chapters Close

Preface 1. Starting with Android FREE CHAPTER 2. Building and Running 3. Screens 4. Connecting Screen Flow 5. Look and Feel 6. Permissions 7. Working with Databases 8. Android Preferences 9. Concurrency in Android 10. Android Services 11. Messaging 12. Backend and API 13. Tuning Up for High Performance 14. Testing 15. Migration to Kotlin 16. Deploying Your Application

Refactoring and cleanup

To have the best possible code after conversion, we must perform refactoring and cleanup. We will adapt our code base to conform Kotlin standards and idioms. For that purpose, you must read it whole. Only when this is done, we can consider our migration done!

Open your classes and read the code. There is a lot of space for improvements! After you do some work, you should get something like this:

The MigrationActivity code is as follows:

    ... 
    override fun onResume() = super.onResume() 
    ... 

As you can see, there is not too much work for MigrationActivity (and MigrationActivity2). Both classes are really small. A bigger effort is expected for classes such as Dummy and Dummy2:

  • The Dummy class code is as follows:
        package com.journaler.model 
 
        class Dummy( 
          var title: String, 
          var content: String 
         ...
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