akbarsha03

fun main(args: Array<String>) {
    RequestBody(null, 25)
}

data class RequestBody(val name: String?, val age: Int?) {
    
    init {

        checkNotNull(name) {
            "This can't be null" // Custom message for IllegalStateException

akbarsha03

Kotlin builder pattern best practice:

https://medium.com/@piotr.slesarew/dsl-builder-in-kotlin-be5816ba3ca7

akbarsha03

NotificationManagerCompat.from(context).apply {
    notify(101, NotificationCompat.Builder(context).run {
        setStyle(NotificationCompatV4.InboxStyle().addLine("You have new message"))
        setContentTitle(getNotificationTitleForPreNougat(dialog, dialogMessages))
        setAutoCancel(true)
        setContentIntent(getPendingIntent()))
        setSmallIcon(R.drawable.ic_launcher)
        build()
    })

akbarsha03

object Api {
    val instance: RestAPI = Retrofit.Builder().run {
        baseUrl(AppConst.API.BASE_URL)
        addCallAdapterFactory(RxJavaCallAdapterFactory.create())
        addConverterFactory(JacksonConverterFactory.create(ObjectMapper()))
        client(OkHttpClient.Builder()
                .apply {
                    addInterceptor(HttpLoggingInterceptor()
                            .apply { level = HttpLoggingInterceptor.Level.BODY })
                            .takeIf { BuildConfig.DEBUG }

akbarsha03

class Factory {
    public static Api create() {
        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
        if (BuildConfig.DEBUG) {
            HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
            logging.setLevel(HttpLoggingInterceptor.Level.BODY);
            httpClient.addInterceptor(logging);
        }
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)

akbarsha03

NotificationCompat.Builder(this).apply builder@ { // object 1 reference
    setSmallIcon(R.drawable.ic_launcher)
    setContentTitle("My notification")
    setContentText("Hello world!")
    
    Intent(this, HomeActivity::class.java).apply resultIntent@ { // object 2 reference
        TaskStackBuilder.create(this).apply {
            addParentStack(HomeActivity::class.java)
            addNextIntent(this@resultIntent)
            [email protected](getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT))

akbarsha03

// object 1
NotificationCompat.Builder mBuilder =
        new NotificationCompat.Builder(this)
        .setSmallIcon(R.drawable.notification_icon)
        .setContentTitle("My notification")
        .setContentText("Hello World!");

// object 2
Intent resultIntent = new Intent(this, ResultActivity.class);

akbarsha03

val contact = ContactModel()

val isSuccess = contact.run {
    var isSuccess = false
    try {
        ActiveAndroid.beginTransaction()
        groupName = "GROUP NAME"
        type "PRIVATE"
        subject = "PHYSICS GROUP"
        save()

akbarsha03

data class Person(var name: String? = null, var address: Address? = null, var age: Int? = null, var sex: String? = null, var lat: Double? = null, var lng: Double? = null)
data class Address(var streetName: String? = null, var pinCode: String? = null)

Person().apply {
    name = "PERSON NAME"
    sex = "MALE"
    address = Address().apply {
        streetName = "STREET NAME"
        pinCode = "560029"
    }

akbarsha03

AlertDialog.Builder(this).apply {
    setMessage("Kotlin message")
    this.setPositiveButton("button 1") { dialog, _ ->
        dialog.dismiss()
    }
    setNegativeButton("button 2") { dialog, _ ->
        dialog.dismiss()
    }
    create()
    show()