Android 可以通过BroadcastReceiver来获取电池信息改变的广播（ACTION_BATTERY_CHANGED），从而获取到相关的电池信息。

电池信息，及其对应的相关常数（参考网址：http://blog.sina.com.cn/s/blog_5d2e69770102vh59.html）

电池信息 类型 备注
status int 取得电池的状态，返回的状态类型由 android.os.BatteryManager 类定义的常量所决定，包括：
电池充电状态（ BATTERY_STATUS_CHARGING ）
电池放电状态（ BATTERY_STATUS_DISCHARGING ）
电池满电状态（ BATTERY_STATUS_FULL ）
电池不充电状态（ BATTERY_STATUS_NOT_CHARGING ）
电池未知状态（ BATTERY_STATUS_UNKNOWN ）
health int 取得电池的健康状态，返回的状态类型由 android.os.BatteryManager 类定义的常量所决定，包括：
电池损坏（ BATTERY_HEALTH_DEAD ）
电池健康（ BATTERY_HEALTH_GOOD ）
电池过热（ BATTERY_HEALTH_OVERHEAT ）
电池电压过大（ BATTERY_HEALTH_OVER_VOLTAGE ）
未知状态（ BATTERY_HEALTH_UNKOWN ）
未明示故障（ BATTERY_HEALTH_UNSPECIFIED_FAILURE ）
present boolean 判断当前是否存在电池
level int 取得电池的剩余容量
scale int 取得电池的总容量，通常为 100
Icon-small int 取得电池对应的图标 ID
plugged int 连接的电源插座类型，返回的状态由 android.os.BatteryManager 类定义的常量所决定，包括：
USB 电源（ BATTERY_PLUGGED_USB ）
交流电电源（ BATTERY_PLUGGED_AC ）
voltage int 取得电池的电压
temperature int 取得电池的温度，单位是摄氏度
technology String 取得电池的类型

获取电池信息的步骤：

（1） 创建BroadcastReceiver，用于结束电池信息变化的广播

private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {

    @Override

    public void onReceive(Context context, Intent intent) {

        String action = intent.getAction();

        if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {

           //TO GET BatteryInfo

        }

(2) 重写onResume()方法，获取IntentFilter对象，并注册BroadcastReceiver

	protected void onResume() {

		IntentFilter filter = new IntentFilter();

		filter.addAction(Intent.ACTION_BATTERY_CHANGED);

		registerReceiver(mBroadcastReceiver, filter);

		super.onResume();

	}

（3）程序在后台的时候取消注册BroadcastReceiver

	protected void onPause() {

		unregisterReceiver(mBroadcastReceiver);

		super.onPause();

	}

　

实例：

public class GetBatteryInfo extends Activity {

	private static final int REFRESH_TIME = 1;

	private static boolean runtime=false;

	private TextView mStatus_BatteryInfo;

	private TextView mPlugged_BatteryInfo;

	private TextView mLevel_BatteryInfo;

	private TextView mScale_BatteryInfo;

	private TextView mVoltage_BatteryInfo;

	private TextView mTemperature_BatteryInfo;

	private TextView mTechnology_BatteryInfo;

	private TextView mHealth_BatteryInfo;

	private TextView mRuntime_BatteryInfo;

	private TimeThread timeThread;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		InitView();

	}

	private void InitView() {

		mStatus_BatteryInfo=(TextView)findViewById(R.id.status_BatteryInfo);

		mPlugged_BatteryInfo=(TextView)findViewById(R.id.plugged_BatteryInfo);

		mLevel_BatteryInfo=(TextView)findViewById(R.id.level_BatteryInfo);

		mScale_BatteryInfo=(TextView)findViewById(R.id.scale_BatteryInfo);

		mVoltage_BatteryInfo=(TextView)findViewById(R.id.voltage_BatteryInfo);

		mTemperature_BatteryInfo=(TextView)findViewById(R.id.temperature_BatteryInfo);

		mTechnology_BatteryInfo=(TextView)findViewById(R.id.technology_BatteryInfo);

		mHealth_BatteryInfo=(TextView)findViewById(R.id.health_BatteryInfo);

		mRuntime_BatteryInfo=(TextView)findViewById(R.id.runtime_BatteryInfo);

	}

	@Override

	protected void onResume() {

		IntentFilter filter = new IntentFilter();

		filter.addAction(Intent.ACTION_BATTERY_CHANGED);

		registerReceiver(mBroadcastReceiver, filter);

		startTimeThread(timeThread);

		super.onResume();

	}

	@Override

	protected void onPause() {

		stopTimeThread(timeThread);

		unregisterReceiver(mBroadcastReceiver);

		super.onPause();

	}

	/**

	 * @param milliseconds 将ms转化为hh:mm:ss 格式时间

	 * @return

	 */

	private String msToTime(int milliseconds ){

		int allSeconds=(milliseconds/1000);

		int hours=allSeconds/3600;

		String hours_string;

		int feelSeconds=allSeconds%3600;

		int mimute=feelSeconds/60;

		String mimute_string;

		String second_string;

		int second=feelSeconds%60;

		if(hours<10){

			hours_string="0"+String.valueOf(hours);

		}else{

			hours_string=String.valueOf(hours);

		}

		if(mimute<10){

			mimute_string="0"+String.valueOf(mimute);

		}else{

			mimute_string=String.valueOf(mimute);

		}

		if(second<10){

			second_string="0"+String.valueOf(second);

		}else{

			second_string=String.valueOf(second);

		}

		return hours_string+":"+mimute_string+":"+second_string;

	}

	private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {

		@Override

		public void onReceive(Context context, Intent intent) {

		String action = intent.getAction();

		if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {

		int status = intent.getIntExtra("status", 0);

		int health = intent.getIntExtra("health", 0);

		int level = intent.getIntExtra("level", 0);

		int scale = intent.getIntExtra("scale", 0);

		int plugged = intent.getIntExtra("plugged", 0);

		int voltage = intent.getIntExtra("voltage", 0);

		int temperature = intent.getIntExtra("temperature", 0);

		String technology = intent.getStringExtra("technology");

		mLevel_BatteryInfo.setText(level+"");

		mScale_BatteryInfo.setText(scale+"");

		mVoltage_BatteryInfo.setText(voltage+"mV");

		mTemperature_BatteryInfo.setText(((float)temperature/10)+"℃");

		mTechnology_BatteryInfo.setText(technology+"");

		mRuntime_BatteryInfo.setText(msToTime((int) SystemClock.elapsedRealtime()));

		switch (status) {

		case BatteryManager.BATTERY_STATUS_UNKNOWN:

		mStatus_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_status_UNKNOWN));

		break;

		case BatteryManager.BATTERY_STATUS_CHARGING:

			mStatus_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_status_CHARGING));

		break;

		case BatteryManager.BATTERY_STATUS_DISCHARGING:

			mStatus_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_status_DISCHARGING));

		break;

		case BatteryManager.BATTERY_STATUS_NOT_CHARGING:

			mStatus_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_status_NOT_CHARGING));

		break;

		case BatteryManager.BATTERY_STATUS_FULL:

			mStatus_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_status_FULL));

		break;

		}

		switch (health) {

		case BatteryManager.BATTERY_HEALTH_UNKNOWN:

		mHealth_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_health_UNKOWN));

		break;

		case BatteryManager.BATTERY_HEALTH_GOOD:

		mHealth_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_health_GOOD));

		break;

		case BatteryManager.BATTERY_HEALTH_OVERHEAT:

		mHealth_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_health_OVERHEAT));

		break;

		case BatteryManager.BATTERY_HEALTH_DEAD:

		mHealth_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_health_DEAD));

		break;

		case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:

		mHealth_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_health_VOLTAGE));

		break;

		case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:

		mHealth_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_health_UNSPECIFIED_FAILURE));

		break;

		}  

		switch (plugged) {

		case BatteryManager.BATTERY_PLUGGED_AC:

		mPlugged_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_plugged_AC));

		break;

		case BatteryManager.BATTERY_PLUGGED_USB:

			mPlugged_BatteryInfo.setText(getResources().getString(R.string.BatteryInfo_plugged_USB));

		break;

		default:

			mPlugged_BatteryInfo.setText("");

		}

		}

		}

	};

	Handler TimeHandler=new Handler(){

		@Override

		public void handleMessage(Message msg) {

			switch (msg.what) {

			case REFRESH_TIME:

				mRuntime_BatteryInfo.setText(msToTime((int) SystemClock.elapsedRealtime()));//获取系统启动时间

				break;

			default:

				break;

			}

			super.handleMessage(msg);

		}

	};

	/**

	 * 打开线程timeThread

	 * @param timeThread

	 * @param runtime 运行标志位

	 */

	private void startTimeThread(Thread timeThread){

		if(timeThread==null){

			runtime=true;

			timeThread=new TimeThread();

			timeThread.start();

		}

	}

	/**

	 * 停止线程

	 * @param timeThread

	 */

	private void stopTimeThread(Thread timeThread){

		if(timeThread!=null){

			Thread.currentThread().interrupt();

			timeThread.interrupt();

			runtime=false;

		}

	}

	class TimeThread extends Thread{

		@Override

		public void run() {

			while(runtime){

				try {

					sleep(1000);

				} catch (InterruptedException e) {

					e.printStackTrace();

				}

				Message msg=new Message();

				msg.what=REFRESH_TIME;

				TimeHandler.sendMessage(msg);

			}

		}

	}

}

布局：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:background="#FFFFFF"

    android:clipToPadding="true"

    android:fitsSystemWindows="true"

    android:orientation="vertical" >

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="48dp"

        android:background="#5CD8AF"

        android:gravity="center_vertical" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="8dp"

            android:text="@string/SystemSetBatteryInfo_BatteryInfo_textvie"

            android:textColor="@android:color/white"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="10dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_status_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/status_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_plugged_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/plugged_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_level_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/level_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_scale_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/scale_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_voltage_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/voltage_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_temperature_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/temperature_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_technology_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/technology_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_health_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/health_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="5dp"

        android:background="#FFFFFF"

        android:gravity="center_vertical"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="10dp"

            android:text="@string/SystemSetBatteryInfo_runtime_textview"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

        <TextView

            android:id="@+id/runtime_BatteryInfo"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="@color/main_view_color"

            android:textSize="18sp" />

    </LinearLayout>

</LinearLayout>

Strings.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string name="app_name">GetBatteryInfo</string>

    <string name="SystemSetBatteryInfo_BatteryInfo_textvie">电池信息</string>

    <string name="SystemSetBatteryInfo_status_textview">电池状态：</string>

    <string name="SystemSetBatteryInfo_plugged_textview">充电方式：</string>

    <string name="SystemSetBatteryInfo_level_textview">电池电量：</string>

    <string name="SystemSetBatteryInfo_scale_textview">电池容量：</string>

    <string name="SystemSetBatteryInfo_voltage_textview">电池电压：</string>

    <string name="SystemSetBatteryInfo_temperature_textview">电池温度：</string>

    <string name="SystemSetBatteryInfo_technology_textview">电池类型：</string>

    <string name="SystemSetBatteryInfo_health_textview">健康状态：</string>

    <string name="SystemSetBatteryInfo_runtime_textview">使用时间：</string>

    <string name="BatteryInfo_status_CHARGING">正在充电</string>

    <string name="BatteryInfo_status_DISCHARGING">正在耗电</string>

    <string name="BatteryInfo_status_FULL">电量充满</string>

    <string name="BatteryInfo_status_NOT_CHARGING ">未充电</string>

    <string name="BatteryInfo_status_UNKNOWN">状态未知</string>

    <string name="BatteryInfo_plugged_USB">USB电源</string>

    <string name="BatteryInfo_plugged_AC">交流电电源</string>

    <string name="BatteryInfo_health_DEAD">电池损坏</string>

    <string name="BatteryInfo_health_GOOD">电池正常</string>

    <string name="BatteryInfo_health_OVERHEAT">电池过热</string>

    <string name="BatteryInfo_health_VOLTAGE ">电池电压过大</string>

    <string name="BatteryInfo_health_UNKOWN">未知状态</string>

    <string name="BatteryInfo_health_UNSPECIFIED_FAILURE">未明示故障</string>

</resources>

colors.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <color name="main_view_color">#1f1f1f</color>

    <color name="main_text_color">#6f6f6f</color>

</resources>

　　

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