Android Standardize Context and Activity Property for Activity and Fragment

July 25, 2018

We frequently need to access Context and Activity from both Activity and Fragment, and many times we move code from Activity to Fragment and vice versa.

Wouldn’t it be better to standardize the class variable reference to access Context and Activity by using Kotlin Extensions.

val AppCompatActivity.context: Context
    get() = this

val AppCompatActivity.activity: Activity
    get() = this

Now we can access Context and Activity from both Activity and Fragment using the same class property/variable.

By Desmond Lua

A dream boy who enjoys programming and travelling, maker of Travelopy. Follow me on @d_luaz.

Tags:

Kotlin Serialization and Json (Android)

Android Kotlin Coroutine Scope for Activity, Fragment and ViewModel (Architecture Components)

Setup Android Kotlin Coroutines (1.1) With Coroutine Scope

Setup Android BottomNavigationView With Fragment (Kotlin)

Android Kotlin Coroutines Setup and Basic Usage

Setup Dagger 2 For Android Kotlin

Guide to learning Android Dev with Kotlin and Architecture Components (ViewModel, LiveData and Room)

Android Activity Return Result (Kotlin)

Android Switch Fragment Without Losing Ui State (Kotlin)

Kotlin Coroutines Wait Task to Complete

Migrating to Android Kotlin 1.3 Coroutines

Android Start Activity and Clear History Stack (Prevent Back)

Kotlin Android Extentions ViewBinding for RecyclerView ViewHolder (LayoutContainer)

Android Activity Show AlertDialog for Close Confirmation on Back Pressed

Android Main Activity Initialization Is Not Safe

Android Create Option Menu From Fragment (Kotlin)

Android Activity setTitle Not Working

Android Fragment Access Activity

Android Kotlin Auto Close Resource/Cursor on Exception

Android Fragment: Listen to Show/Hide Callback Event

Android Disable Activity From User Touch

Kotlin Android Coroutine Context: Default Dispatcher vs Commonpool

Android Fullscreen Activity

Android Fragment onCreate Activity Null on Screen Rotation

Android Load Menu From Fragment

Android Check File Exist (Kotlin)

Android Change Activity Title

Syntax To Inject Constructor For Kotlin