1. get websocket kotlin android package com.example.alarmcyrpto import android.os. Bundle import android.util. Log import android.widget. EditText import android.widget. TextView import androidx.appcompat.app. AppCompatActivity import com.google.gson. Gson import com.google.gson.annotations. SerializedName import okhttp3.* class MainActivity : AppCompatActivity () { private lateinit var okHttpClient : OkHttpClient private lateinit var webSocket : WebSocket private lateinit var gson : Gson private lateinit var btcPriceTv : TextView private lateinit var pilihCoinEditText : EditText private var currentSymbol : String = "btcusdt" private lateinit var textViewCurrentPrice : TextView private lateinit var textViewTargetPrice : TextView private var currentPrice : Double = 0.0 private var targetPrice : Double = 0.0 override fun onCreate ( savedInstanceState : Bundle ?) { super . onCreate ( savedInstanceState ) setContentVie...