1 package simpleperf.example.kotlin 2 3 import androidx.appcompat.app.AppCompatActivity 4 import android.os.Bundle 5 6 class MainActivity : AppCompatActivity() { onCreatenull7 override fun onCreate(savedInstanceState: Bundle?) { 8 super.onCreate(savedInstanceState) 9 setContentView(R.layout.activity_main) 10 createBusyThread() 11 } 12 createBusyThreadnull13 fun createBusyThread() { 14 object : Thread() { 15 var i = 0 16 17 override fun run() { 18 while (true) { 19 i = callFunction(i) 20 } 21 } 22 23 fun callFunction(i: Int): Int { 24 return i + 1 25 } 26 }.start() 27 } 28 }