如何在运行时获取 Android 中的电池统计信息？

Posted 2023-03-05

【中文标题】如何在运行时获取 Android 中的电池统计信息？

【英文标题】：How to obtain Battery Stats in Android at runtime?

【发布时间】：2010-02-15 13:04:36

【问题描述】：

我想在我的应用中显示电池电量统计信息。如何获取电池电量、电池电压等信息？

【问题讨论】：

android Battery in SDK 的可能重复项

【参考方案1】：

   BroadcastReceiver batteryLevelReceiver = new BroadcastReceiver() 
        public void onReceive(Context context, Intent intent) 
            context.unregisterReceiver(this);
            int rawlevel = intent.getIntExtra("level", -1);
            int scale = intent.getIntExtra("scale", -1);
            int level = -1;
            if (rawlevel >= 0 && scale > 0) 
                level = (rawlevel * 100) / scale; /* This is your battery level */ 
            
         
    ;
    IntentFilter batteryLevelFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
    registerReceiver(batteryLevelReceiver, batteryLevelFilter);

或查看这个人（他编写了我发布的代码）：http://mihaifonoage.blogspot.com/2010/02/getting-battery-level-in-android-using.html

【参考方案2】：

this 有什么帮助吗？

public class Main extends Activity 
   private TextView contentTxt;
   private BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver()
      @Override
      public void onReceive(Context arg0, Intent intent) 
         // TODO Auto-generated method stub
         int level = intent.getIntExtra("level", 0);
         contentTxt.setText(String.valueOf(level) + "%");
      
   ;

   @Override
   public void onCreate(Bundle icicle) 
      super.onCreate(icicle);
      setContentView(R.layout.main);
      contentTxt = (TextView) this.findViewById(R.id.monospaceTxt);
      this.registerReceiver(this.mBatInfoReceiver, 
         new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
   

另外，请参阅this。