Android--电池相关信息的获取

浏览数：17 / 时间：2015年06月11日

1.定义广播接收，显示电池信息--BatteryInfoBroadcastReceiver

package org.lxh.demo;

import android.app.AlertDialog;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;

public class BatteryInfoBroadcastReceiver extends BroadcastReceiver {

	@Override
	public void onReceive(Context context, Intent intent) {
		if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) {
			int level = intent.getIntExtra("level", 0);
			int scale = intent.getIntExtra("scale", 0);
			int voltage = intent.getIntExtra("voltage", 0);
			int temperature = intent.getIntExtra("temperature", 0);
			String technology = intent.getStringExtra("technology");
			Dialog dialog = new AlertDialog.Builder(context)
					.setTitle("电池电量")
					.setMessage(
							"电池电量为：" + String.valueOf(level * 100 / scale)
									+ "%\n" + "电池电压为："
									+ String.valueOf((float)voltage / 1000) + "v"
									+ "\n电池类型为：" + technology + "\n" + "电池温度为："
									+ String.valueOf((float)temperature / 10) + "°C")
					.setNegativeButton("关闭",
							new DialogInterface.OnClickListener() {

								public void onClick(DialogInterface arg0,
										int arg1) {

								}
							}).create();
			dialog.show();
		}

	}

}

2.定义布局管理器--main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/mybtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="获取电池电量" />

</LinearLayout>

3.定义Activity程序：

package org.lxh.demo;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnFocusChangeListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Hello extends Activity {
	private Button mybtn = null;

	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState); // 生命周期方法
		super.setContentView(R.layout.main); // 设置要使用的布局管理器
		this.mybtn = (Button) super.findViewById(R.id.mybtn);
		this.mybtn.setOnClickListener(new OnClickListenerImpl());

	}

	private class OnClickListenerImpl implements OnClickListener {

		public void onClick(View v) {
			BatteryInfoBroadcastReceiver receiver = null;
			receiver = new BatteryInfoBroadcastReceiver();
			IntentFilter filter = new IntentFilter(
					Intent.ACTION_BATTERY_CHANGED);
			Hello.this.registerReceiver(receiver, filter);

		}

	}
}

在实际手机上运行效果如下：

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