[Android开发学习32]BroadcastReceiver之电源管理

13-04-06 来源：[db:作者]

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直接上代码:

[java]
/* ========================== Battery Start =============================*/

    int tBatteryLevel = 0, tBatteryCurLevel = 0;
    int tBatteryChargeFlag = -1;

    private void Battery(){
        int tTempFlag = 0;

        ImageButton tTempButton = (ImageButton)findViewById(R.id.top_battery);
        tTempButton.setVisibility(View.INVISIBLE);

        IntentFilter   mIntentFilter = new IntentFilter();
        mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);


        // 声明消息处理过程
        BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {

            @Override
            public void onReceive(Context context, Intent intent) {
                // TODO Auto-generated method stub
                String action = intent.getAction();
                if(action.equals(Intent.ACTION_BATTERY_CHANGED)){
                    //电池电量，数字
                    int tTempLevel = intent.getIntExtra("level", 0);
                    //电池最大容量
                    int tTempScale = intent.getIntExtra("scale", 100);
                    //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
                    int tTempStatus = intent.getIntExtra("status", 0);

                    tTempLevel = (tTempLevel * 100) / tTempScale;
                    if (tTempLevel > 95)
                        tBatteryLevel = 5;
                    else if(tTempLevel > 80)
                        tBatteryLevel = 4;
                    else if(tTempLevel > 60)
                        tBatteryLevel = 3;
                    else if(tTempLevel > 40)
                        tBatteryLevel = 2;
                    else if(tTempLevel > 20)
                        tBatteryLevel = 1;
                    else
                        tBatteryLevel = 0;

                    if (tTempStatus == BatteryManager.BATTERY_STATUS_CHARGING)
                        tBatteryChargeFlag = 1;
                    else
                        tBatteryChargeFlag = 0;
                }
            }

        };

        registerReceiver(mIntentReceiver, mIntentFilter);
    }
/* ========================== Battery End   =============================*/

/* ========================== Battery Start =============================*/

int tBatteryLevel = 0, tBatteryCurLevel = 0;
int tBatteryChargeFlag = -1;

private void Battery(){
  int tTempFlag = 0;

  ImageButton tTempButton = (ImageButton)findViewById(R.id.top_battery);
  tTempButton.setVisibility(View.INVISIBLE);

  IntentFilter   mIntentFilter = new IntentFilter();
  mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);


  // 声明消息处理过程
  BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {

   @Override
   public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    String action = intent.getAction();
    if(action.equals(Intent.ACTION_BATTERY_CHANGED)){
     //电池电量，数字
     int tTempLevel = intent.getIntExtra("level", 0);
     //电池最大容量
     int tTempScale = intent.getIntExtra("scale", 100);
     //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
     int tTempStatus = intent.getIntExtra("status", 0);

     tTempLevel = (tTempLevel * 100) / tTempScale;
     if (tTempLevel > 95)
      tBatteryLevel = 5;
     else if(tTempLevel > 80)
      tBatteryLevel = 4;
     else if(tTempLevel > 60)
      tBatteryLevel = 3;
     else if(tTempLevel > 40)
      tBatteryLevel = 2;
     else if(tTempLevel > 20)
      tBatteryLevel = 1;
     else
      tBatteryLevel = 0;

     if (tTempStatus == BatteryManager.BATTERY_STATUS_CHARGING)
      tBatteryChargeFlag = 1;
     else
      tBatteryChargeFlag = 0;
    }
   }

  };

registerReceiver(mIntentReceiver, mIntentFilter);
}
/* ========================== Battery End =============================*/

另外还有一份别人的参考代码:

[java]
检测到现在在电源状态:

IntentFilter   mIntentFilter = new IntentFilter();

mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(mIntentReceiver, mIntentFilter);

//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();
           //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", "" + intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN));

               //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));
           }
       }
   };

检测到现在在电源状态:

IntentFilter mIntentFilter = new IntentFilter();

mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(mIntentReceiver, mIntentFilter);

//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();
           //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", "" + intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN));

               //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));
           }
       }
   };

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