ceruleanotter

class MyViewModel() : ViewModel() {

    fun initialize() {
        viewModelScope.launch {
            processBitmap()
        }
    }
        
    suspend fun processBitmap() = withContext(Dispatchers.Default) {
        // Do your long running work here

ceruleanotter

// Don't use GlobalScope - for example purposes only
GlobalScope.launch {
    longRunningFunction()
    anotherLongRunningFunction()
}

ceruleanotter

<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable name="viewmodel" 
                  type="com.android.MyViewModel"/>
    </data>
    <TextView
            android:id="@+id/name"
            android:text="@{viewmodel.name}"
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"/>

ceruleanotter

class MainActivity : AppCompatActivity() {
    
    // This ktx requires at least androidx.activity:activity-ktx:1.0.0
    private val myViewModel: MyViewModel by viewModels()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
      
         //Inflate view and create binding
        val binding: MainActivityBinding = 

ceruleanotter

<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable name="viewmodel" 
                  type="com.android.MyViewModel"/>
    </data>
    <... Rest of your layout ...>
</layout>
  

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override fun onActivityCreated(savedInstanceState: Bundle?) {
    super.onActivityCreated(savedInstanceState)
    
    myViewModel.name.observe(this, { newName ->
        // Update the UI. In this case, a TextView.
        nameTextView.text = newName
    })
  
}

ceruleanotter

public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    // Other fragment setup code
    
    NavController navController = NavHostFragment.findNavController(this);
    
    ViewModelProvider viewModelProvider = new ViewModelProvider(this,
        navController.getViewModelStore(R.id.checkout_graph));
    

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val viewModel: CheckoutViewModel by navGraphViewModels(R.id.checkout_graph)

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<navigation app:startDestination="@id/homeFragment" ...>
    <fragment android:id="@+id/homeFragment" .../>
    <fragment android:id="@+id/productListFragment" .../>
    <fragment android:id="@+id/productFragment" .../>
    <fragment android:id="@+id/bargainFragment" .../>
    
    <navigation 
    	android:id="@+id/checkout_graph" 
    	app:startDestination="@id/cartFragment">

ceruleanotter

// Any fragment's onCreate or onActivityCreated
// This ktx requires at least androidx.fragment:fragment-ktx:1.1.0
val sharedViewModel: ActivityViewModel by activityViewModels()