robertlevonyan

...

buttonStartChat.setOnClickListener { view ->
  // get Action from genereted Directions class
  val action = MessageListFragmentDirections.actionMessageListFragmentToMessageFragment(userRepository.getSignedInUser().userId)
  // also you can set the value like this
  action.userId = userRepository.getSignedInUser().userId
                                    
  view.findNavController.navigate(action)
}

robertlevonyan

<navigation 
            ...>
  
  <fragment
            ...>
    <action
            android:id="@+id/actionStartChat"
            app:destination="@id/messageFragment">
      
      <argument

robertlevonyan

...

val navController = Navigation.findNavController(view)
val deeplink = Uri.parse("android-app://demo.navigation.app/message")
navController.navigate(deeplink)

...

robertlevonyan

...

//navigate to Sign Up screen to create a new user

buttonSignUp.setOnClickListener { view ->
  view.findNavController().navigate(R.id.action_signInFragment_to_signUpFragment)
}

...

robertlevonyan

...

//check is there a signed in user and navigate to specific destination

if (usersRepositoty.userExists())
  Navigation.findNavController(view).navigate(R.id.action_splashFragment_to_messageListFragment)
} else {
  Navigation.findNavController(view).navigate(R.id.action_splashFragment_to_signInFragment)
}

robertlevonyan

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <fragment
        android:id="@+id/fragmentNavHost"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"

robertlevonyan

fun chainWorks(filter1: Work, filter2: Work, compress: Work, upload: Work) {
  WorkManager.getInstance()
    // Run these works in parallel
    .beginWith(listOf(filter1, filter2))
    // Dependent work (only runs after all previous work in chain)
    .then(compress)
    .then(upload)
    // Don't forget to enqueue()
    .enqueue()
}

robertlevonyan

fun createConstraints() = Constraints.Builder()
                        .setRequiredNetworkType(NetworkType.UNMETERED)  // if connected to WIFI
                                                                          // other values(NOT_REQUIRED, CONNECTED, NOT_ROAMING, METERED)
                        .setRequiresBatteryNotLow(true)                 // if the battery is not low
                        .setRequiresStorageNotLow(true)                 // if the storage is not low
                        .build()

fun createWorkRequest(data: Data) = PeriodicWorkRequestBuilder<LocationWorker>(12, TimeUnit.HOURS)  // setting period to 12 hours
                // set input data for the work
                .setInputData(data)                                                     

robertlevonyan

class LocationWorker(context: Context, workerParams: WorkerParameters) 
    : Worker(context, workerParams) {
    
    ...
    
    override fun doWork(): Result {
        
        val latitude = inputData.getDouble(KEY_LATITUDE, 40.1903484)
        val longitude = inputData.getDouble(KEY_LONGITUDE, 44.5148367)
        

robertlevonyan

override fun onCreate(savedInstanceState: Bundle?) {
  // some smart stuff here
  
  bottomAppBar.replaceMenu(R.menu.menu_wallpaper)
  bottomAppBar.setNavigationOnClickListener {
    // do something interesting on navigation click
  }
  
}