Android--电池相关信息的获取

来源：互联网发布：如何设计淘宝店铺编辑：程序博客网时间：2024/05/08 00:35

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 {@Overridepublic 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：

源码下载地址：http://download.csdn.net/detail/yayun0516/8409715

1 0