WendyYanto

class RxJavaUnitTest {

  companion object {
    private const val USER_ID = "USER_ID"
    private const val NAME = "John Doe"
    private const val AGE = 20
    private const val EMPTY = ""
  }

WendyYanto

io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException: The exception was not handled due to missing onError handler in the subscribe() method call. Further reading: https://github.com/ReactiveX/RxJava/wiki/Error-Handling | java.lang.Exception: UserID is invalid

WendyYanto

class RxJavaErrorUnitTest {

  companion object {
    private const val DEFAULT_USER = "DEFAULT_USER"
  }

  @Test
  fun getUserTest() {
    getUser()
      .onErrorReturnItem(DEFAULT_USER)

WendyYanto

DEFAULT_USER

WendyYanto

@Test
fun undeliverableException() {
  Observable.create<String> { sink ->
    sink.onNext(USER)
    sink.onComplete()
    sink.onError(Exception())
  }.subscribe(::println) 
}

WendyYanto

io.reactivex.rxjava3.exceptions.UndeliverableException: The exception could not be delivered to the consumer because it has already canceled/disposed the flow or the exception has nowhere to go to begin with. Further reading: https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling | java.lang.Exception

WendyYanto

<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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
  
    <WebView
        android:id="@+id/wv_main"

WendyYanto

class MainActivity : AppCompatActivity() {

    companion object {
        private const val URL = "https://www.google.com"
    }

    private lateinit var webView: WebView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

WendyYanto

webView.webViewClient = object : WebViewClient() {
    override fun shouldOverrideUrlLoading(
        view: WebView?,
        request: WebResourceRequest?
    ): Boolean {
        return super.shouldOverrideUrlLoading(view, request)
    }

    override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
        super.onPageStarted(view, url, favicon)

WendyYanto

webView.webViewClient = object : WebViewClient() {
  override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
    super.onPageStarted(view, url, favicon)
    showLoading()
  }

  override fun onPageFinished(view: WebView?, url: String?) {
    super.onPageFinished(view, url)
    dismissLoading()
  }