TheBotBox

<layout>
    <data>
        <variable
            name="viewModel"
            type="com.thebotbox.letsmvvm.presentation.viewmodel.MainViewModel" />
    </data>

    <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"

TheBotBox

class MainActivity : AppCompatActivity() {
    private val mBinding by viewBinding(ActivityMainBinding::inflate)
    private val mViewModel by viewModel<MainViewModel>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(mBinding.root)
        mBinding.viewModel = mViewModel

        mViewModel.fetchRandomQuoteLiveData.observe(this, Observer { // observing response from viewmodel

TheBotBox

class MainViewModel(
    private val iRepository: IRepository
) : ViewModel() {

    private val _errorLiveData: MutableLiveData<String> = MutableLiveData()
    val errorLiveData: LiveData<String>
        get() = _errorLiveData

    private val _fetchRandomQuoteLiveData: MutableLiveData<RandomQuoteResponse> = MutableLiveData()
    val fetchRandomQuoteLiveData: LiveData<RandomQuoteResponse>

TheBotBox

inline fun <reified T> Any.ofType(block: (T) -> Unit) {
    if (this is T) {
        block(this as T)
    }
}

TheBotBox

fun Activity.requestPermissions(vararg permissions: String, @IntRange(from = 0) requestCode: Int) =
        ActivityCompat.requestPermissions(this, permissions, requestCode)

TheBotBox

fun AppCompatActivity.hasPermissions(vararg permissions: String): Boolean {
    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
        permissions.all { singlePermission ->
            applicationContext.checkSelfPermission(singlePermission) == PackageManager.PERMISSION_GRANTED
        }
    else true

TheBotBox

val <T> T.makeExhaustive: T
    get() = this

TheBotBox

fun EditText.onDone(callback: (String) -> Unit) {
    setOnEditorActionListener { _, actionId, _ ->
        if (actionId == EditorInfo.IME_ACTION_DONE) {
            callback.invoke(text.toString())
            true
        }
        false
    }
}

TheBotBox

fun EditText.onTextChanged(listener: (String) -> Unit) {
    this.addTextChangedListener(object : TextWatcher {
        override fun afterTextChanged(s: Editable?) { listener(s.toString()) }
        override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
        override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {}
    })
}

TheBotBox

inline fun <reified E : Throwable> tryAndCatch(blockTry: () -> Unit, blockCatch: (E) -> Unit) {
    try {
        blockTry()
    } catch (e: Exception) {
        blockCatch(e as E)
    }
}