1 package com.example.simpleperf.simpleperfexamplepurejava;
2 
3 import android.support.v7.app.AppCompatActivity;
4 import android.os.Bundle;
5 
6 public class MainActivity extends AppCompatActivity {
7 
8     @Override
onCreate(Bundle savedInstanceState)9     protected void onCreate(Bundle savedInstanceState) {
10         super.onCreate(savedInstanceState);
11         setContentView(R.layout.activity_main);
12 
13         createBusyThread();
14     }
15 
createBusyThread()16     void createBusyThread() {
17         new Thread(new Runnable() {
18             volatile int i = 0;
19 
20             @Override
21             public void run() {
22                 while (true) {
23                     i = callFunction(i);
24                 }
25             }
26 
27             private int callFunction(int a) {
28                 return a+1;
29             }
30         }, "BusyThread").start();
31     }
32 }
33