mitchtabian

Updates for the Food2ForkCompose app from alpha-11 to beta01.

Versions

1. kotlin -> 1.4.30
   • Make sure Kotlin is updated to early version
   • Settings > Languages and Frameworks > Kotlin > Early Access Preview 1.4.x
2. kotlin_compiler_extension -> 1.0.0-beta01
3. compose -> 1.0.0-beta01 (from alpha11)
4. navigation-compose -> 1.0.0-alpha08 (from alpha06)
5. Add const val compose_constraint = "1.0.0-alpha03"

mitchtabian

val isShowing = remember{ mutableStateOf(true) }
if(isShowing.value){
  AlertDialog(
    onDismissRequest = {isShowing.value = false},
    title = { Text("Dialog Title") },
    text = { Text("Here is the description text for a dialog.") },
    buttons = {
      Row(
        modifier = Modifier
          .fillMaxWidth()

mitchtabian

data class Recipe (
    val id: Int? = null,
    val title: String? = null,
    val publisher: String? = null,
    val featuredImage: String? = null,
    val rating: Int? = 0,
    val sourceUrl: String? = null,
    val description: String? = null,
    val cookingInstructions: String? = null,
    val ingredients: List<String> = listOf(),

mitchtabian

Features:

1. Kotlin
2. MVVM
3. Compose navigation (one activity, zero fragments)
4. Retrieve Network Data from API (REST API)
5. Database caching
6. Monitoring Network Connectivity
7. Use cases
8. Datastore (New Shared Preferences)
9. Unit Tests

mitchtabian

fun <VM : ViewModel> createViewModel(
    viewModelClass: KClass<VM>,
    storeProducer: ViewModelStore,
    factory: ViewModelProvider.Factory,
): VM {
    return ViewModelProvider(storeProducer, factory).get(viewModelClass.java)
}

mitchtabian

override fun mapFromEntity(entity: OrganisationCacheEntity): OrganisationModel {
    return OrganisationModel(
        children = entity.children,
//            organisation = entity.organisation,
        organisation = Organisation(
            _attachments = entity.organisation._attachments,
            _etag = entity.organisation._etag,
            _rid = entity.organisation._rid,
            _self = entity.organisation._self,
            _ts = entity.organisation._ts,

mitchtabian

setContent{
    val snackbarHostState = remember{SnackbarHostState()}

    Column {
        Button(
            onClick = {
                lifecycleScope.launch {
                    val time = System.currentTimeMillis()
                    Log.d(TAG, "showing snackbar")
                    snackbarHostState.showSnackbar(

mitchtabian

setContent{
    val showSnackbar = remember{ mutableStateOf(false)}

    Column{
        Button(
            onClick = {
                showSnackbar.value = true
            }
        ) {
            Text("Show snackbar")

mitchtabian

// Align composables with respect to one another
@Composable
fun CircularIndeterminateProgressBar(isDisplayed: Boolean) {
    if (isDisplayed) {
        ConstraintLayout(
                modifier = Modifier.fillMaxSize()
        ) {
            val (progress, text) = createRefs()
            CircularProgressIndicator(
                    modifier = Modifier.constrainAs(progress) {

mitchtabian

fun isConnectedToTheInternet(): Boolean{
    val cm = application.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
    try{
        return cm.activeNetworkInfo.isConnected
    }catch (e: Exception){
        Log.e(TAG, "isConnectedToTheInternet: ${e.message}")
    }
    return false
}