Android Battery Information 電池資訊

電池相關功能
1./res/layout/main.xml

2.Main.java

package tw.android;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.drawable.LevelListDrawable;
import android.os.BatteryManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class Main extends Activity {
 private Button btBattery;
 private TextView tvBatteryInfo;
 private ImageView ivBattery;
 
 private String healthState,acOrUSB,batteryState;
 
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  btBattery = (Button) findViewById(R.id.btBattery);
  tvBatteryInfo = (TextView) findViewById(R.id.tvBatteryInfo);
  ivBattery = (ImageView) findViewById(R.id.ivBattery);
  
  btBattery.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v) {
    runInfo();
    
   }
  });
  
  
 }
 
 public void runInfo(){
  /*電池訊息*/
  this.registerReceiver(this.mBatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
 }
 
 private BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver(){
     @SuppressWarnings("deprecation")
  @Override
     public void onReceive(Context ctxt, Intent intent) {
      int  health= intent.getIntExtra(BatteryManager.EXTRA_HEALTH,0); //健康狀態
   int  icon_small= intent.getIntExtra(BatteryManager.EXTRA_ICON_SMALL,0); //電池i-con圖
   int  level= intent.getIntExtra(BatteryManager.EXTRA_LEVEL,0); //目前電量
   int  plugged= intent.getIntExtra(BatteryManager.EXTRA_PLUGGED,0); //電流來源
   boolean  present= intent.getExtras().getBoolean(BatteryManager.EXTRA_PRESENT); //電池存在否
   int  scale= intent.getIntExtra(BatteryManager.EXTRA_SCALE,0); //電量最大值
   int  status= intent.getIntExtra(BatteryManager.EXTRA_STATUS,0); //充電狀態
   String  technology= intent.getExtras().getString(BatteryManager.EXTRA_TECHNOLOGY); //電池技術
   int  temperature= intent.getIntExtra(BatteryManager.EXTRA_TEMPERATURE,0); //目前溫度
   int  voltage= intent.getIntExtra(BatteryManager.EXTRA_VOLTAGE,0); //目前電壓
   
   /*判斷健康狀態*/
   switch (health) {  
            case BatteryManager.BATTERY_HEALTH_COLD:  
             healthState = "COLD";
                break;  
            case BatteryManager.BATTERY_HEALTH_DEAD:  
             healthState = "DEAD";
                break;  
            case BatteryManager.BATTERY_HEALTH_GOOD:  
             healthState = "GOOD";
                break;  
            case BatteryManager.BATTERY_HEALTH_OVERHEAT:  
             healthState = "OVERHEAT";
                break;  
            case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:  
             healthState = "OVER_VOLTAGE";
                break;  
            case BatteryManager.BATTERY_HEALTH_UNKNOWN:  
             healthState = "UNKNOWN";
                break;  
            case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:  
             healthState = "UNSPECIFIED_FAILURE"; 
                break;  
            default:  
                break;  
            }  
   
   /*電池i-con圖*/
   LevelListDrawable batteryLevel = (LevelListDrawable) getResources().getDrawable(icon_small);
   batteryLevel.setLevel(level);
         ivBattery.setBackgroundDrawable(batteryLevel);
   
   /*判斷電流來源*/
   switch (plugged) {  
            case BatteryManager.BATTERY_PLUGGED_AC:  
             acOrUSB = "使用AC";
                break;  
            case BatteryManager.BATTERY_PLUGGED_USB:  
             acOrUSB = "使用USB";
                break;  
            default:  
                break;  
            }  

   /*判斷充電狀態來源*/
    switch (status) {  
             case BatteryManager.BATTERY_STATUS_CHARGING:  
              batteryState = "充電中";
                 break;  
             case BatteryManager.BATTERY_STATUS_DISCHARGING:  
              batteryState = "取消充電";
                 break;  
             case BatteryManager.BATTERY_STATUS_FULL:  
              batteryState = "電量已滿";
                 break;  
             case BatteryManager.BATTERY_STATUS_NOT_CHARGING:  
              batteryState = "未充電";
                 break;  
             case BatteryManager.BATTERY_STATUS_UNKNOWN:  
              batteryState = "未知";
                 break;  
             default:  
                 break;  
             }  
   
    tvBatteryInfo.setText("健康狀態: "+healthState+"\n"+
      "目前電量: "+level+"% \n"+
      "電流來源: "+acOrUSB+"\n"+
      "電池存在: "+present+"\n"+
      "電量最大值: "+scale+"%\n"+
      "充電狀態: "+batteryState+"\n"+
      "電池技術: "+technology+"\n"+
      "目前溫度: "+temperature+"度\n"+
      "目前電壓: "+voltage+"\n");
     }
   };
   
   @Override
  protected void onDestroy() {
   super.onDestroy();
   //結束後要移除，否則會出現 Activity xxx has leaked IntentReceiver
   unregisterReceiver(mBatInfoReceiver);
  }
}

檔案下載:
https://github.com/terryyamg/JudgeBatteryTest
 參考來源:
http://mobiledevtuts.com/android/android-sdk-get-device-battery-information/
http://stackoverflow.com/questions/4891598/android-access-system-drawables
http://stackoverflow.com/questions/9781769/activity-has-leaked-intentreceiver