Android development news 02/15/2021

Hello. My name is  Kirill Rozov  and if you are interested in Android development, you probably heard about the  Telegram channel "Android Broadcast" , with daily news for Android developers, and the  YouTube channel of the same name . This post is a text transcript of a new video on the channel

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Hey! Another week has come to an end, and I have collected the best news especially for you! A large portion of the new stable Android Jetpack libraries has been released, IDEA can now run on CI, and in the end you will learn how to win a ticket to Mobius! I am Kirill Rozov, this is Android Broadcast channel. Let's figure it out!

AndroidX Activity 1.2.0 | Activity Result API

The Activity 1.2.0 library was released in which the Activity Result API appeared, the ability to get Context



before the call onCreate()



, support ViewTree



, and also the backport of the method reportFullyDrawn()



.

Activity Result API - API, onActivityResult() . callback ActivityResultContract, Activity. , . API , , onActivityResult()



.

- Context



onCreate()



, . Coroutine callback-a.

ViewTree



- ComponentActivity



API SavedState Lifecycle, .

• AndroidX Activity 1.2.0

  
  
  
  
  

• Activity Result API

  
  
  
  
  

Fragment 1.3.0

Fragment 1.3.0 , API, deprecated API, Fragment



.

, - Fragment-, , back stack-.

Activity Result API , , request callback- permission.

Fragment setTargetFragment - . API - Fragment Result API, FragmentManager Fragment- Callback.

" Fragment " - Google deprecated API. setRetainInstance() , ViewModel. FragmentPagerAdapter ViewPager 1 deprecated , . deprecation onAttachFragment() Activity Fragment. FragmentOnAttachListener, onAttachFragment().

• AndroidX Fragment 1.3.0

  
  
  
  
  

• Fragment Result

  
  
  
  
  

• "Fragments: rebuilding the internals"

  
  
  
  
  

Lifecycle 2.3.0

Lifecycle 2.3.0 SavedStateHandle, Lifecycle, ViewTree API.

SavedStateHandle lazy , .. setSavedStateProvider() , , .

Lifecycle: DESTROYED - , . Lifecycle , . API,

ViewTree API, LifecycleOwner ViewModelStoreOwner View. API SavedStateRegistry savedstate 1.1.0

• AndroidX Lifecycle 2.3.0

  
  
  
  
  

Kotlin Symbol Processing

Kotlin Symbol Processing (KSP) Room

KSP - kapt, . Google Kotlin , , Java apt Kotlin. KSP 2 kapt. . KSP

• Kotlin Symbol Processing Alpha

  
  
  
  
  

IDEA CI

IDEA GUI CI

JetBrains - Qodana, CI . Qodana 2 : IDEA UI Web UI . pipeline. Teamcity, Docker GitHub Action Application. TeamCity. . EAP , .

• JetBrains Qodana

  
  
  
  
  

• Qodana ( )

  
  
  
  
  

Core App Quality

developers.android.com "App Quality",   Android .

, . checklist Android. :

• 
  
  
  
  

• 
  
  
  
  

• 
  
  
  
  

• 
  
  
  
  

• Google Play

  
  
  
  
  

.

• "Core App Quality"

  
  
  
  
  

• "Core App Quality"

  
  
  
  
  

2021

Kaspersky android feature , , feature . .

• " Android 2021"

  
  
  
  
  

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Mobius

1. YouTube "Android Broadcast"

   
   
   
   
   

2. Telegram "Android Broadcast"

   
   
   
   
   

3. Telegram "Kotlin Broadcast"

   
   
   
   
   

4. Telegram ( !!!)

   
   
   
   
   

5. ,