Merge pull request #925 from OldFatPHP/master

#95 #97 Lab9 已完成全部

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903121/Net1314080903121Activity.java

@@ -1,4 +1,4 @@
-package edu.hzuapps.androidworks.homeworks.net1314080903121;
+package com.xiaoyuantong.activity;
 
 import android.content.Context;
 import android.hardware.SensorManager;
@@ -13,6 +13,8 @@
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import com.xiaoyuantong.R;
+
 public class Net1314080903121Activity extends Activity {
     private ImageView iv;
     private TextView mint;
@@ -35,7 +37,7 @@ public void handleMessage(Message msg) {
                     // 添加更新ui的代码
                     if (!isstop) {
                         updateView();
-                        mHandler.sendEmptyMessageDelayed(1, 1000);
+                        mHandler.sendEmptyMessageDelayed(1, 1000);//一秒重新运行一次
                     }
                     break;
                 case 0:
@@ -57,29 +59,31 @@ private void initViews() {
         sec = (TextView) findViewById(R.id.sec);
         reset = (Button) findViewById(R.id.reset);
         start = (Button) findViewById(R.id.start);
+        //reset点击事件
         reset.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View arg0) {
                 // TODO Auto-generated method stub
-
+                //把时间设为0
                 mint.setText("00");
                 sec.setText("00");
                 start.setText("start");
-                timeusedinsec=0;
-                isstop=true;
+                timeusedinsec=0;//计时置0
+                isstop=true;//停止
             }
         });
+        //start点击事件
         start.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View arg0) {
                 // TODO Auto-generated method stub
                 mHandler.removeMessages(1);
                 String aaa=start.getText().toString();
-                if(aaa.equals("start")){
+                if(aaa.equals("start")){//如果是"start"开始计时
                     mHandler.sendEmptyMessage(1);
                     isstop = false;
                     start.setText("pause");
-                }else {
+                }else {//如果是"pause"
                     mHandler.sendEmptyMessage(0);
                     isstop = true;
                     start.setText("start");
@@ -88,6 +92,7 @@ public void onClick(View arg0) {
             }
         });
     }
+    //更新时间的显示
     private void updateView() {
         timeusedinsec += 1;
         int minute = (int) (timeusedinsec / 60)%60;