fornewid

fun animateVisibility(view: View, visible: Boolean) {
  val targetAlpha = if (visible) 1f else 0f
  if (view.alpha == targetAlpha) return
  view.visibility = View.VISIBLE
  val spring = view.spring(SpringAnimation.ALPHA)
  
  (view.getTag(R.id.tag_pending_end_listener) as? DynamicAnimation.OnAnimationEndListener)?.let {
    spring.removeEndListener(it)
  }
  

fornewid

class BlurViewModel : ViewModel() {

    ...
    
    internal fun applyBlur(blurLevel: Int) {
        val chargingConstraints = Constraints.Builder()
            .setRequiresCharging(true)
            .build()

        val cleanupRequest = OneTimeWorkRequest

fornewid

package soup.gdg.navigation.sample.navigation

import android.content.Context
import android.os.Bundle
import android.util.AttributeSet
import android.util.Log
import androidx.annotation.CallSuper
import androidx.annotation.IdRes
import androidx.fragment.app.DialogFragment
import androidx.fragment.app.Fragment

fornewid

// SpeakerFragment.kt
class SpeakerFragment : BaseFragment() {
    
    private val speakerViewModel by viewModel<SpeakerViewModel>()
}

// BaseFragment.kt
abstract class BaseFragment : DaggerFragment() {

    @Inject

fornewid

<fragment
    android:id="@+id/navHostFragment"
    android:name="androidx.navigation.fragment.NavHostFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:defaultNavHost="true"
    app:navGraph="@navigation/{graph_name}" />

fornewid

// Generated by Navigation Architecture Components.
data class ThirdActivityArgs(val label: String?) : NavArgs {
    @Suppress("CAST_NEVER_SUCCEEDS")
    fun toBundle(): Bundle {
        val result = Bundle()
        if (Parcelable::class.java.isAssignableFrom(String::class.java)) {
            result.putParcelable("label", this.label as Parcelable?)
        } else if (Serializable::class.java.isAssignableFrom(String::class.java)) {
            result.putSerializable("label", this.label as Serializable?)
        } else {

fornewid

// Generated by Navigation Architecture Components.
class SecondFragmentDirections private constructor() {
    private data class ActionToThird(val label: String?) : NavDirections {
        override fun getActionId(): Int = R.id.action_to_third

        @Suppress("CAST_NEVER_SUCCEEDS")
        override fun getArguments(): Bundle {
            val result = Bundle()
            if (Parcelable::class.java.isAssignableFrom(String::class.java)) {
                result.putParcelable("label", this.label as Parcelable?)

fornewid

<navigation app:startDestination="@+id/first">
   
   <!-- Global Action -->
   
   <action
      android:id="@+id/action_to_second"
      app:destination="@id/second" />
   
   <!-- Destination -->
   

fornewid

abstract class BaseViewModel : ViewModel() {

    private val disposables = CompositeDisposable()

    override fun onCleared() {
        disposables.dispose()
        super.onCleared()
    }

fornewid

https://medium.com/til-kotlin-ko/android-o%EC%97%90%EC%84%9C%EC%9D%98-%EB%B0%B1%EA%B7%B8%EB%9D%BC%EC%9A%B4%EB%93%9C-%EC%B2%98%EB%A6%AC%EB%A5%BC-%EC%9C%84%ED%95%9C-jobintentservice-250af2f7783c

https://medium.com/google-developers/scheduling-jobs-like-a-pro-with-jobscheduler-286ef8510129

https://developers-kr.googleblog.com/2017/10/working-with-multiple-jobservices.html

http://gdgand.github.io/lollipop/2015/03/12/lollipop.html

https://codelabs.developers.google.com/codelabs/android-migrate-to-jobs/index.html