Android i-jetty开源项目.zip项目安卓应用源码下载

package net.baisoft.stopwatch; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.Activity; import android.content.SharedPreferences; import android.content.SharedPreferences.Editor; import android.os.Bundle; import android.os.Handler; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity implements Runnable { /** * 当前所经过的时间 */ private long time = 0; /** * 开始时间 */ private long startTime; private Handler handler; /** * 用于显示时间 */ private TextView timeView; /** * 用于列表显示分记时间 */ private ListView listView; /** * 开始按钮 */ private Button startButton; /** * 暂停按钮 */ private Button pauseButton; /** * 分记按钮 */ private Button markButton; /** * 重置按钮 */ private Button resetButton; /** * 分记时间数据 */ private List<Long> marks; /** * 秒表的当前状态 * 分为正在运行、暂停、停止三种状态 */ private int state = 0; private static int STATE_RUNNING = 1; private static int STATE_STOP = 0; private static int STATE_PAUSE = 2; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //读取环境信息（偏好 ） readEnvironment(); Toast.makeText(this, "环境已读取", Toast.LENGTH_LONG).show(); //开始按钮 startButton = (Button)findViewById(R.id.start); startButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { onStartClick(view); } }); //暂停按钮 pauseButton = (Button)findViewById(R.id.pause); pauseButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { onPauseClick(view); } }); //分记按钮 markButton = (Button) findViewById(R.id.mark); markButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { onMarkClick(view); } }); //重置按钮 resetButton = (Button) findViewById(R.id.reset); resetButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { onResetClick(view); } }); timeView = (TextView) findViewById(R.id.timeView); listView = (ListView) findViewById(R.id.ListView01); //创建 handler handler = new Handler(); // 设置各按钮 setButtons(); //设置时间显示 if (state == STATE_STOP){ timeView.setText("Let's Run!"); } else if(state == STATE_PAUSE){ timeView.setText(getFormatTime(time)); } //显示列表 refreshMarkList(); } /** * 根据状态设置按钮显示于不显示 */ private void setButtons() { switch (state) { case 1://如果正在运行 startButton.setVisibility(View.GONE); pauseButton.setVisibility(View.VISIBLE); markButton.setVisibility(View.VISIBLE); resetButton.setVisibility(View.GONE); resetButton.setEnabled(false); break; case 2://如果暂停中 startButton.setVisibility(View.VISIBLE); pauseButton.setVisibility(View.GONE); markButton.setVisibility(View.GONE); resetButton.setVisibility(View.VISIBLE); resetButton.setEnabled(true); break; case 0://如果停止中 startButton.setVisibility(View.VISIBLE); pauseButton.setVisibility(View.GONE); markButton.setVisibility(View.GONE); resetButton.setVisibility(View.VISIBLE); resetButton.setEnabled(false); break; default: break; } } /** * 读取环境 */ @SuppressWarnings("unchecked") private void readEnvironment() { SharedPreferences sharedPreferences = getSharedPreferences("environment", MODE_PRIVATE); state = sharedPreferences.getInt("state", STATE_STOP); startTime = sharedPreferences.getLong("startTime", 0); time = sharedPreferences.getLong("time", 0); marks = new ArrayList<Long>(); SharedPreferences sharedPreferencesMarks = getSharedPreferences("marks", MODE_PRIVATE); Map<String, Long> mapMarks = (Map<String, Long>) sharedPreferencesMarks.getAll(); for (int i = 0; i < mapMarks.size(); i++){ Long mark = mapMarks.get("" + i); marks.add(mark); } } /** * 保存环境 */ private void saveEnvironment() { SharedPreferences sharedPreferences = getSharedPreferences("environment", MODE_PRIVATE); Editor editor = sharedPreferences.edit(); editor.putInt("state", state); editor.putLong("time", time); editor.putLong("startTime", startTime); editor.commit(); //保存分记数据 SharedPreferences sharedPreferencesMarks = getSharedPreferences("marks", MODE_PRIVATE); Editor editorMarks = sharedPreferencesMarks.edit(); editorMarks.clear(); for(Long mark : marks){ editorMarks.putLong("" + marks.indexOf(mark), mark.longValue()); } editorMarks.commit(); } @Override protected void onPause() { super.onPause(); if (state == STATE_RUNNING){//如果正在运行 handler.removeCallbacks(this); } } @Override protected void onDestroy() { super.onDestroy(); //保存环境 saveEnvironment(); Toast.makeText(this, "当前环境已保存", Toast.LENGTH_LONG).show(); } @Override protected void onResume() { super.onResume(); if (state == STATE_RUNNING){//如果正在运行 handler.post(this); } } /** * 点击重置 * @param view */ protected void onResetClick(View view) { //设置状态为停止 state = STATE_STOP; //不再刷新 if (state == STATE_RUNNING){//如果正在运行 handler.removeCallbacks(this); } //初始化分记数组 marks = new ArrayList<Long>(); refreshMarkList(); //设置时间显示 time = 0; timeView.setText(getFormatTime(time)); // 设置各按钮 setButtons(); } /** * 点击暂停 * @param view */ protected void onPauseClick(View view) { //不再刷新 if (state == STATE_RUNNING){//如果正在运行 handler.removeCallbacks(this); } //设置状态为暂停 state = STATE_PAUSE; // 设置各按钮 setButtons(); } /** * 点击开始 * @param view */ protected void onStartClick(View view) { startTime = new Date().getTime() - time; handler.post(this); //初始化分记数组 marks = new ArrayList<Long>(); //设置状态为正在运行 state = STATE_RUNNING; // 设置各按钮 setButtons(); } /** * 点击分记 * * @param view */ protected void onMarkClick(View view) { if(time == 0){ return; } // 添加分记数据, 最近的加在最前面 marks.add(0, time); //刷新列表 refreshMarkList(); } /** * 刷新列表 */ private void refreshMarkList() { //显示 List<Map<String, Object>> data = new ArrayList<Map<String,Object>>(); int no = marks.size();//序号 for(long mark : marks){ Map<String, Object> map = new HashMap<String, Object>(); map.put("mark", getFormatTime(mark)); map.put("no", this.getString(R.string.mark) + no); no--; data.add(map); } String[] from = new String[]{"no","mark"}; int[] to = new int[]{R.id.no, R.id.time}; SimpleAdapter simpleAdapter = new SimpleAdapter(this, data, R.layout.item, from, to); listView.setAdapter(simpleAdapter); } @Override public void run() { handler.postDelayed(this, 50); time = new Date().getTime() - startTime; timeView.setText(getFormatTime(time)); } /** * 得到一个格式化的时间 * * @param time * 时间 毫秒 * @return 分：秒：毫秒 */ private String getFormatTime(long time) { long millisecond = time % 1000; long