Android简易计时器(HH:MM:SS)

package com.lili.chronometer; import com.lili.chronometer.R; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.os.SystemClock; import android.text.format.Time; import android.view.View; import android.widget.Button; import android.widget.Chronometer; import android.widget.EditText; /** * 简易计时器（HH:MM:SS格式） * @author Lili * */ public class ChronometerDemoActivity extends Activity { //初始化 private int startstate = 0; int miss=0; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //计时器控件 final Chronometer chronometer = (Chronometer) findViewById(R.id.chronometer); Button btnStart = (Button) findViewById(R.id.btnStart); Button btnStop = (Button) findViewById(R.id.btnStop); Button btnRest = (Button) findViewById(R.id.btnReset); // 开始 btnStart.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { System.out.println("--开始记时---"); // 开始记时 chronometer.start(); } }); // 停止 btnStop.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { System.out.println("--停止记时---"); // 停止 chronometer.stop(); startstate=1; chronometer.setText(FormatMiss(0)); } }); // 重置 btnRest.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { System.out.println("--重置记时---"); miss=0; chronometer.setText(FormatMiss(miss)); } }); //时间变化监听 chronometer.setOnChronometerTickListener(new Chronometer.OnChronometerTickListener() { @Override public void onChronometerTick(Chronometer chronometer) { if (startstate==1) { miss=0; startstate=2; chronometer.setText(FormatMiss(miss)); }else{ miss++; chronometer.setText(FormatMiss(miss)); } } }); } //格式转换为HH:MM:SS public static String FormatMiss(int miss){ String hh=miss/3600>9?miss/3600+"":"0"+miss/3600; String mm=(miss % 3600)/60>9?(miss % 3600)/60+"":"0"+(miss % 3600)/60; String ss=(miss % 3600) % 60>9?(miss % 3600) % 60+"":"0"+(miss % 3600) % 60; return hh+":"+mm+":"+ss; } }