android电源信息查看(电量、温度、电压)实例代码

本文实例讲述了android电源信息查看方法。分享给大家供大家参考。具体如下：

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 you 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. You 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 checkbox = (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();
     /*
      * 如果捕捉到的action是ACTION_BATTERY_CHANGED， 就运行onBatteryInfoReceiver()
      */
     if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
       sb.append("\n当前电量:").append(intent.getIntExtra("level", 0));
       sb.append("\n电池电量:").append(intent.getIntExtra("scale", 100));
       // 电池伏数
       sb.append("\n当前电压：").append(intent.getIntExtra("voltage", 0));
       // 电池温度
       sb.append("\n当前温度：").append(
           intent.getIntExtra("temperature", 0));
       String BatteryStatus = null;
       switch (intent.getIntExtra("status",
           BatteryManager.BATTERY_STATUS_UNKNOWN)) {
       case BatteryManager.BATTERY_STATUS_CHARGING:
         BatteryStatus = "充电状态";
         break;
       case BatteryManager.BATTERY_STATUS_DISCHARGING:
         BatteryStatus = "放电状态";
         break;
       case BatteryManager.BATTERY_STATUS_NOT_CHARGING:
         BatteryStatus = "未充电";
         break;
       case BatteryManager.BATTERY_STATUS_FULL:
         BatteryStatus = "充满电";
         break;
       case BatteryManager.BATTERY_STATUS_UNKNOWN:
         BatteryStatus = "未知道状态";
         break;
       }
       sb.append("\n当前状态：").append(BatteryStatus);
       String BatteryStatus2 = null;
       switch (intent.getIntExtra("plugged",
           BatteryManager.BATTERY_PLUGGED_AC)) {
       case BatteryManager.BATTERY_PLUGGED_AC:
         BatteryStatus2 = "AC充电";
         break;
       case BatteryManager.BATTERY_PLUGGED_USB:
         BatteryStatus2 = "USB充电";
         break;
       }
       sb.append("\n充电方式：").append(BatteryStatus2);
       String BatteryTemp = null;
       switch (intent.getIntExtra("health",
           BatteryManager.BATTERY_HEALTH_UNKNOWN)) {
       case BatteryManager.BATTERY_HEALTH_UNKNOWN:
         BatteryTemp = "未知错误";
         break;
       case BatteryManager.BATTERY_HEALTH_GOOD:
         BatteryTemp = "状态良好";
         break;
       case BatteryManager.BATTERY_HEALTH_DEAD:
         BatteryTemp = "电池没有电";
         break;
       case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:
         BatteryTemp = "电池电压过高";
         break;
       case BatteryManager.BATTERY_HEALTH_OVERHEAT:
         BatteryTemp = "电池过热";
         break;
       }
       sb.append("\n电池状态：").append(BatteryTemp);
       log(sb.toString());
     }
   }
 };
 class SpinThread extends Thread {
   private boolean mStop;
   public void quit() {
     synchronized (this) {
       mStop = true;
     }
   }
   public void run() {
     while (true) {
       synchronized (this) {
         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"
   android:layout_height="wrap_content"
   android:layout_marginLeft="25dp"
   android:layout_marginTop="25dp"
   android:textSize="18sp"
   android:textColor="#ffffffff"
   android:text="电源测试"
   />
 <ScrollView android:id="@+id/scroll"
   android:layout_width="fill_parent"
   android:layout_height="0px"
   android:layout_weight="1"
   >
   <TextView android:id="@+id/log"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android: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" android:label="@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>

希望本文所述对大家的Android程序设计有所帮助。