Android Power Information view (electricity, temperature, voltage) instance code _android

This example describes the Android power information viewing method. Share to everyone for your reference. Specifically as follows:

1. Powertestactivity:

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.os.PowerManager;
Import Android.view.View;
Import Android.widget.CheckBox;
Import Android.widget.TextView;
Import Java.text.DateFormat;
Import Java.util.Date;
 /** * So your thought sync used up your battery life.
  * * Public class Powertestactivity extends activity {TextView mlog;
  DateFormat Mdateformat;
  Intentfilter Mfilter;
  Powermanager.wakelock Mwakelock;
  Spinthread Mthread;
    @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Set the layout for this activity.
    can find it//in Res/layout/hello_activity.xml Setcontentview (R.layout.main);
    Findviewbyid (R.id.checkbox). Setonclicklistener (Mclicklistener);
    Mlog = (TextView) Findviewbyid (R.id.log); Mdateformat = dateformat.getinstance ();
    Mfilter = new Intentfilter ();
    Mfilter.addaction (intent.action_battery_changed);
    Mfilter.addaction (Intent.action_battery_low);
    Mfilter.addaction (Intent.action_battery_okay);
    Mfilter.addaction (intent.action_power_connected);
    PowerManager pm = (powermanager) getsystemservice (Power_service);
    Mwakelock = Pm.newwakelock (Powermanager.full_wake_lock, "Batterywaster");
  Mwakelock.setreferencecounted (FALSE);
  @Override public void OnPause () {stoprunning (); } view.onclicklistener Mclicklistener = new View.onclicklistener () {public void OnClick (View v) {CheckBox ch
      Eckbox = (CheckBox) v;
      if (checkbox.ischecked ()) {startrunning ();
      else {stoprunning ();
  }
    }
  };
    void startrunning () {log ("Start");
    Registerreceiver (Mreceiver, Mfilter);
    Mwakelock.acquire ();
      if (Mthread = = null) {Mthread = new spinthread ();
    Mthread.start (); } void StoprUnning () {log ("Stop");
    Unregisterreceiver (Mreceiver);
    Mwakelock.release ();
      if (mthread!= null) {mthread.quit ();
    Mthread = null;
  } void Log (String s) {Mlog.settext (Mlog.gettext () + "\ n" + mdateformat.format (new Date ()) + ":" + s);
      } broadcastreceiver mreceiver = new Broadcastreceiver () {public void OnReceive (context context, Intent Intent) {
      StringBuffer sb = new StringBuffer ();
      String action = Intent.getaction (); * * If the ACTION captured is action_battery_changed, run onbatteryinforeceiver ()/if (Intent.action_battery_chan
        Ged.equals (Action) {sb.append ("\ n current charge:"). Append (Intent.getintextra ("level", 0));
        Sb.append ("\ n battery charge:"). Append (Intent.getintextra ("scale", 100));
        Battery Volt sb.append ("Current voltage:"). Append (Intent.getintextra ("voltage", 0));
        Battery temperature Sb.append ("\ n Current temperature:"). Append (Intent.getintextra ("Temperature", 0)); String Batterystatus = nulL Switch (Intent.getintextra ("status", Batterymanager.battery_status_unknown)) {case Batterymanager.bat
          Tery_status_charging:batterystatus = "Charge State";
        Break
          Case BatteryManager.BATTERY_STATUS_DISCHARGING:BatteryStatus = "discharge state";
        Break
          Case BatteryManager.BATTERY_STATUS_NOT_CHARGING:BatteryStatus = "not charged";
        Break
          Case BatteryManager.BATTERY_STATUS_FULL:BatteryStatus = "full power";
        Break
          Case BatteryManager.BATTERY_STATUS_UNKNOWN:BatteryStatus = "not known state";
        Break
        } sb.append ("\ n current status:"). Append (Batterystatus);
        String BatteryStatus2 = null; Switch (Intent.getintextra ("plugged", Batterymanager.battery_plugged_ac)) {case Batterymanager.batter
          Y_plugged_ac:batterystatus2 = "AC charge";
        Break Case BATTERYMANAGER.BATTERY_PLUGGED_USB:BATTERYSTATUS2 = "USB chargerElectricity ";
        Break
        } sb.append ("\ n charge mode:"). Append (BATTERYSTATUS2);
        String batterytemp = null; Switch (Intent.getintextra ("Health", Batterymanager.battery_health_unknown)) {case Batterymanager.bat
          Tery_health_unknown:batterytemp = "Unknown error";
        Break
          Case BatteryManager.BATTERY_HEALTH_GOOD:BatteryTemp = "in good condition";
        Break
          Case BatteryManager.BATTERY_HEALTH_DEAD:BatteryTemp = "battery without electricity";
        Break
          Case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:BatteryTemp = "battery voltage is too high";
        Break
          Case BatteryManager.BATTERY_HEALTH_OVERHEAT:BatteryTemp = "battery overheating";
        Break
        } sb.append ("\ n battery Status:"). Append (batterytemp);
      Log (sb.tostring ());
  }
    }
  };
    Class Spinthread extends Thread {private Boolean mstop;
      public void Quit () {synchronized () {mstop = true; }} public void Run () {while (true) {synchronized (a) {if (mstop) {return;

 }
        }
      }
    }
  }
}

2. Main.xml:

 <?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" > <checkbox android:id= "@+id/checkbox" android:layout_width= "Fill_parent" Andr oid:layout_height= "Wrap_content" android:layout_marginleft= "25DP" android:layout_margintop= "25DP" Android:text
    Size= "18SP" android:textcolor= "#ffffffff" android:text= "Power Test"/> <scrollview android:id= "@+id/scroll" Android:layout_width= "fill_parent" android:layout_height= "0px" android:layout_weight= "1" > <Text View android:id= "@+id/log" android:layout_width= "fill_parent" android:layout_height= "Wrap_content" Andro id:layout_margintop= "25DP" android:textsize= "12SP" android:textcolor= "#ffffffff"/> </scrollview > </LinearLayout> 

3. Androidmanifest.xml:

<?xml version= "1.0" encoding= "Utf-8"?> <manifest xmlns:android=
"http://schemas.android.com/apk/res/" Android "
   package=" com.lenovo.android "
   android:versioncode=" 1 "
   android:versionname=" 1.0 ">
  <USES-SDK android:minsdkversion= "8"/>
  <application android:icon= "@drawable/icon" @ String/app_name ">
    <activity android:name=". Powertestactivity "
         android:label=" @string/app_name ">
      <intent-filter>
        <action android: Name= "Android.intent.action.MAIN"/>
        <category android:name= "Android.intent.category.LAUNCHER"/>
      </intent-filter>
    </activity>
  </application>
  <uses-permission android: Name= "Android.permission.WAKE_LOCK"/>
  <uses-permission android:name= "Android.permission.DEVICE_POWER" "/>
</manifest>

I hope this article will help you with your Android program.