android电池管理

 

开发环境

Window 7

Eclipse helios

MB525 defy  Android 2.1-update1

羽化博客的第三篇，由于这个星期兄弟过来玩，所以决定选个简单的程序来写博客，Android技术群里面也有人问过，网上资料也很多，原来写这个程序目的就是随便试试，这次一切从简吧~ ~好了 送上程序代码：

 

com.LB里面主程序Battery代码：

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1. package com.LB;  
2.   
3. import android.app.Activity;  
4. import android.content.BroadcastReceiver;  
5. import android.content.Context;  
6. import android.content.Intent;  
7. import android.content.IntentFilter;  
8. import android.os.BatteryManager;  
9. import android.os.Bundle;  
10. import android.widget.TextView;  
11.   
12. public class Battery extends Activity   
13. {  
14.     private int BatteryN;       //目前电量  
15.     private int BatteryV;       //电池电压  
16.     private double BatteryT;        //电池温度  
17.     private String BatteryStatus;   //电池状态  
18.     private String BatteryTemp;     //电池使用情况  
19.   
20.     public TextView TV;  
21.       
22.     @Override  
23.     public void onCreate(Bundle savedInstanceState)   
24.     {  
25.         super.onCreate(savedInstanceState);  
26.         setContentView(R.layout.main);  
27.   
28.         // 注册一个系统 BroadcastReceiver，作为访问电池计量之用这个不能直接在AndroidManifest.xml中注册  
29.         registerReceiver(mBatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));  
30.           
31.         TV = (TextView)findViewById(R.id.TV);  
32.           
33.     }  
34.       
35.     /* 创建广播接收器 */  
36.     private BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver()   
37.     {  
38.         public void onReceive(Context context, Intent intent)   
39.         {  
40.             String action = intent.getAction();  
41.             /* 
42.              * 如果捕捉到的action是ACTION_BATTERY_CHANGED， 就运行onBatteryInfoReceiver() 
43.              */  
44.             if (Intent.ACTION_BATTERY_CHANGED.equals(action))   
45.             {  
46.                 BatteryN = intent.getIntExtra("level", 0);    //目前电量  
47.                 BatteryV = intent.getIntExtra("voltage", 0);  //电池电压  
48.                 BatteryT = intent.getIntExtra("temperature", 0);  //电池温度  
49.                   
50.                 switch (intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN))   
51.                 {  
52.                 case BatteryManager.BATTERY_STATUS_CHARGING:  
53.                     BatteryStatus = "充电状态";  
54.                     break;  
55.                 case BatteryManager.BATTERY_STATUS_DISCHARGING:  
56.                     BatteryStatus = "放电状态";  
57.                     break;  
58.                 case BatteryManager.BATTERY_STATUS_NOT_CHARGING:  
59.                     BatteryStatus = "未充电";  
60.                     break;  
61.                 case BatteryManager.BATTERY_STATUS_FULL:  
62.                     BatteryStatus = "充满电";  
63.                     break;  
64.                 case BatteryManager.BATTERY_STATUS_UNKNOWN:  
65.                     BatteryStatus = "未知道状态";  
66.                     break;  
67.                 }  
68.                   
69.                 switch (intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN))   
70.                 {  
71.                 case BatteryManager.BATTERY_HEALTH_UNKNOWN:  
72.                     BatteryTemp = "未知错误";  
73.                     break;  
74.                 case BatteryManager.BATTERY_HEALTH_GOOD:  
75.                     BatteryTemp = "状态良好";  
76.                     break;  
77.                 case BatteryManager.BATTERY_HEALTH_DEAD:  
78.                     BatteryTemp = "电池没有电";  
79.                     break;  
80.                 case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:  
81.                     BatteryTemp = "电池电压过高";  
82.                     break;  
83.                 case BatteryManager.BATTERY_HEALTH_OVERHEAT:  
84.                     BatteryTemp =  "电池过热";  
85.                     break;  
86.                 }  
87.         TV.setText("目前电量为" + BatteryN + "% --- " + BatteryStatus + "\n" + "电压为" + BatteryV + "mV --- " + BatteryTemp + "\n" + "温度为" + (BatteryT*0.1) + "℃");  
88.             }  
89.         }  
90.     };  
91. }  

package com.LB;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.os.BatteryManager;import android.os.Bundle;import android.widget.TextView;public class Battery extends Activity {private int BatteryN;//目前电量private int BatteryV;//电池电压private double BatteryT;//电池温度private String BatteryStatus;//电池状态private String BatteryTemp;//电池使用情况public TextView TV;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);// 注册一个系统 BroadcastReceiver，作为访问电池计量之用这个不能直接在AndroidManifest.xml中注册registerReceiver(mBatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));TV = (TextView)findViewById(R.id.TV);}/* 创建广播接收器 */private BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver() {public void onReceive(Context context, Intent intent) {String action = intent.getAction();/* * 如果捕捉到的action是ACTION_BATTERY_CHANGED， 就运行onBatteryInfoReceiver() */if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {BatteryN = intent.getIntExtra("level", 0); //目前电量BatteryV = intent.getIntExtra("voltage", 0); //电池电压BatteryT = intent.getIntExtra("temperature", 0); //电池温度switch (intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN)) { case BatteryManager.BATTERY_STATUS_CHARGING: BatteryStatus = "充电状态"; break; case BatteryManager.BATTERY_STATUS_DISCHARGING: BatteryStatus = "放电状态"; break; case BatteryManager.BATTERY_STATUS_NOT_CHARGING: BatteryStatus = "未充电"; break; case BatteryManager.BATTERY_STATUS_FULL: BatteryStatus = "充满电"; break; case BatteryManager.BATTERY_STATUS_UNKNOWN: BatteryStatus = "未知道状态"; break;}switch (intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN)) { case BatteryManager.BATTERY_HEALTH_UNKNOWN: BatteryTemp = "未知错误"; break; case BatteryManager.BATTERY_HEALTH_GOOD: BatteryTemp = "状态良好"; break; case BatteryManager.BATTERY_HEALTH_DEAD: BatteryTemp = "电池没有电"; break; case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE: BatteryTemp = "电池电压过高"; break; case BatteryManager.BATTERY_HEALTH_OVERHEAT: BatteryTemp = "电池过热"; break; }TV.setText("目前电量为" + BatteryN + "% --- " + BatteryStatus + "\n" + "电压为" + BatteryV + "mV --- " + BatteryTemp + "\n" + "温度为" + (BatteryT*0.1) + "℃");}}};}
layout的xml代码

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1. <?xml version="1.0" encoding="utf-8"?>  
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
3.     android:orientation="vertical"  
4.     android:layout_width="fill_parent"  
5.     android:layout_height="fill_parent"  
6.     >  
7. <TextView  
8.     android:id = "@+id/TV"  
9.     android:layout_width="fill_parent"  
10.     android:layout_height="wrap_content"  
11.     />  
12. </LinearLayout>  

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" ><TextViewandroid:id = "@+id/TV"android:layout_width="fill_parent" android:layout_height="wrap_content" /></LinearLayout>

好了，很简单的代码，至于为什么要传入数值怎么写大家可以看看帮助文档里面的BatteryManager  ---  The BatteryManager class contains strings and constants used for values in theACTION_BATTERY_CHANGED Intent. 原来看mars的视频里面学到的最重要的不是如何开发Android而是学会使用帮助文档，也推荐大家看看这个学习视频，自我认为看视频比看书学得快-0-