android 电池状态侦听显示 电量 充电动态显示

今天想使用android系统的电池侦听和系统的电池图片;

引入源代码中的两个xml文件(这里我在android2.2的jar包中找不到,所以才引入,源代码路径:C:\android-sdk-windows\platforms\android-8\data\res\drawable),之后会发现stat_sys_battery.xml报错,所以我就将下图

 

1.这些图引入到我的drawable目录下,然后将stat_sys_battery.xml中的图片引入路径更改,如下:

 
     
     
     
     
     
     
     
2.接下来是在activity中的操作:

   创建一个IntentFilter

    private IntentFilter mIntentFilter; 

    在oncreate的方法中:加入:
    //电池相关 
    mIntentFilter = new IntentFilter();  
    mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED); 

3.接收广播
    //声明消息处理过程  
    private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {  
           @Override  
           public void onReceive(Context context, Intent intent) {  
               String action = intent.getAction();  
               int status = intent.getIntExtra("status", 0); 
               int health = intent.getIntExtra("health", 0); 
               boolean present = intent.getBooleanExtra("present", false); 
               int level = intent.getIntExtra("level", 0); 
               int scale = intent.getIntExtra("scale", 0); 
               int icon_small = intent.getIntExtra("icon-small", 0); 
               int plugged = intent.getIntExtra("plugged", 0); 
               int voltage = intent.getIntExtra("voltage", 0); 
               int temperature = intent.getIntExtra("temperature", 0); 
               String technology = intent.getStringExtra("technology"); 
               String statusString = ""; 
               switch (status) { 
               case BatteryManager.BATTERY_STATUS_UNKNOWN: 
                   statusString = "unknown"; 
                   break; 
               case BatteryManager.BATTERY_STATUS_CHARGING: 
                   statusString = "charging"; 
                   battery_image.setImageResource(R.drawable.stat_sys_battery_charge); 
                   battery_image.getDrawable().setLevel(level); 
                   break; 
               case BatteryManager.BATTERY_STATUS_DISCHARGING: 
                   statusString = "discharging"; 
                   battery_image.setImageResource(R.drawable.stat_sys_battery); 
                   battery_image.getDrawable().setLevel(level); 
                   break; 
               case BatteryManager.BATTERY_STATUS_NOT_CHARGING: 
                   statusString = "not charging"; 
                   break; 
               case BatteryManager.BATTERY_STATUS_FULL: 
                   statusString = "full"; 
                   break; 
               } 
               String healthString = ""; 
               switch (health) { 
               case BatteryManager.BATTERY_HEALTH_UNKNOWN: 
                   healthString = "unknown"; 
                   break; 
               case BatteryManager.BATTERY_HEALTH_GOOD: 
                   healthString = "good"; 
                   break; 
               case BatteryManager.BATTERY_HEALTH_OVERHEAT: 
                   healthString = "overheat"; 
                   break; 
               case BatteryManager.BATTERY_HEALTH_DEAD: 
                   healthString = "dead"; 
                   break; 
               case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE: 
                   healthString = "voltage"; 
                   break; 
               case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE: 
                   healthString = "unspecified failure"; 
                   break; 
               } 
               String acString = ""; 
               switch (plugged) { 
               case BatteryManager.BATTERY_PLUGGED_AC: 
                   acString = "plugged ac"; 
                   break; 
               case BatteryManager.BATTERY_PLUGGED_USB: 
                   acString = "plugged usb"; 
                   break; 
               } 
               Log.i("cat", statusString); 
               Log.i("cat", healthString); 
               Log.i("cat", String.valueOf(present)); 
               Log.i("cat", String.valueOf(level)); 
               Log.i("cat", String.valueOf(scale)); 
               Log.i("cat", String.valueOf(icon_small)); 
               Log.i("cat", acString); 
               Log.i("cat", String.valueOf(voltage)); 
               Log.i("cat", String.valueOf(temperature)); 
               Log.i("cat", technology); 
               //要看看是不是我们要处理的消息  
               if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {             
                   //电池电量,数字  
                   Log.d("Battery", "" + intent.getIntExtra("level", 0));                 
                   //电池最大容量  
                   Log.d("Battery", "" + intent.getIntExtra("scale", 0));                 
                   //电池伏数  
                   Log.d("Battery", "" + intent.getIntExtra("voltage", 0));                 
                   //电池温度  
                   Log.d("Battery", "" + intent.getIntExtra("temperature", 0));  
                   //电池状态,返回是一个数字  
                   // BatteryManager.BATTERY_STATUS_CHARGING 表示是充电状态  
                   // BatteryManager.BATTERY_STATUS_DISCHARGING 放电中  
                   // BatteryManager.BATTERY_STATUS_NOT_CHARGING 未充电  
                   // BatteryManager.BATTERY_STATUS_FULL 电池满  
                   Log.d("Battery", "ss" + intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_CHARGING));  
                   //充电类型 BatteryManager.BATTERY_PLUGGED_AC 表示是充电器,不是这个值,表示是 USB  
                   Log.d("Battery", "" + intent.getIntExtra("plugged", 0));  
                   //电池健康情况,返回也是一个数字  
                   //BatteryManager.BATTERY_HEALTH_GOOD 良好  
                   //BatteryManager.BATTERY_HEALTH_OVERHEAT 过热  
                   //BatteryManager.BATTERY_HEALTH_DEAD 没电  
                   //BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE 过电压  
                   //BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE 未知错误  
                   Log.d("Battery", "" + intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN));  
               }  
           }  
       }; 
     这里真正处理图片变换的是以下几句话:其他的我是在做备注
    switch (status) { 
               case BatteryManager.BATTERY_STATUS_UNKNOWN: 
                   statusString = "unknown"; 
                   break; 
               case BatteryManager.BATTERY_STATUS_CHARGING: 
                   statusString = "charging"; 
                   battery_image.setImageResource(R.drawable.stat_sys_battery_charge); 
                   battery_image.getDrawable().setLevel(level); 
                   break; 
               case BatteryManager.BATTERY_STATUS_DISCHARGING: 
                   statusString = "discharging"; 
                   battery_image.setImageResource(R.drawable.stat_sys_battery);
                   battery_image.getDrawable().setLevel(level); 
                   break; 
               case BatteryManager.BATTERY_STATUS_NOT_CHARGING: 
                   statusString = "not charging"; 
                   break; 
               case BatteryManager.BATTERY_STATUS_FULL: 
                   statusString = "full"; 
                   break; 
               }
4. 在onResume方法中注册消息处理器 
    registerReceiver(mIntentReceiver, mIntentFilter);
5. 在onPause方法中注销
    unregisterReceiver(mIntentReceiver);


转自:http://henzil.easymorse.com/?p=301

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