package com.ritterliu.newBatteryWidget;
import android.app.Activity;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.IBinder;
import android.view.MotionEvent;
import android.view.Window;
import android.widget.TextView;
public class NewBatteryInfoActivity extends Activity{
/** 定义电池信息变量 */
private static int currentBatteryPlugged=0;
private static int currentBatteryStatus=0;
private static int currentBatteryLevel=0;
private static int currentBatteryHealth=0;
private static int currentBatteryTemperature=0;
private static int currentBatteryVoltage=0;
private static String currentBatteryTechnology="";
/** TextView 声明 */
private static TextView tvBatteryStatus;
private static TextView tvBatteryLevel;
private static TextView tvBatteryHealth;
private static TextView tvBatteryTemperature;
private static TextView tvBatteryVoltage;
private static TextView tvBatteryTechnology;
/** 定义好字符串以备使用 */
private static String batteryStatus="电池状态: ";
private static String batteryLevel="电池电量: ";
private static String batteryHealth="电池健康: ";
private static String batteryTemperature="电池温度: ";
private static String batteryVoltage="电池电压: ";
private static String batteryTechnology="电池技术: ";
private static String batteryStatusCharging="正在充电";
private static String batteryStatusDischarging="正在放电";
private static String batteryStatusFull="已充满";
private static String batteryStatusNotCharging="未在充电";
private static String batteryStatusUnknown="状态未知";
private static String batteryPluggedAC="(AC)";
private static String batteryPluggedUSB="(USB)";
private static String batteryHealthCold="过冷";
private static String batteryHealthDead="损坏";
private static String batteryHealthGood="良好";
private static String batteryHealthOverheat="过热";
private static String batteryHealthOverVoltage="过压";
private static String batteryHealthUnknown="未知";
private static String batteryHealthUnspecifiedFailure="未知的故障";
/** 提示Service启动标志位 */
private static boolean flag;
/** 提示信息接收器 */
BroadcastReceiver infoReceiver;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE); //设置activity无标题
setContentView(R.layout.newlayout); //使用newlayout的布局
tvBatteryStatus=(TextView)findViewById(R.id.tvBatteryStatus);
tvBatteryLevel=(TextView)findViewById(R.id.tvBatteryLevel);
tvBatteryHealth=(TextView)findViewById(R.id.tvBatteryHealth);
tvBatteryTemperature=(TextView)findViewById(R.id.tvBatteryTemperature);
tvBatteryVoltage=(TextView)findViewById(R.id.tvBatteryVoltage);
tvBatteryTechnology=(TextView)findViewById(R.id.tvBatteryTechnology);
flag=true; //提示service的标志位置为true
infoReceiver=new BroadcastReceiver() //提示信息接收器的定义
{
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
setText(); //收到intent，就及时修改TextView信息，使得Activity显示时，电池信息也能动态显示
}
};
/** 注册提示信息的intentFilter */
IntentFilter filter=new IntentFilter();
filter.addAction("com.ritterliu.newBatteryWidget");
registerReceiver(infoReceiver,filter);
/** 启动提示service */
Intent startService=new Intent(this,updateService.class);
startService(startService);
}
/** 点击屏幕任意位置，关闭电池信息Activity */
public boolean onTouchEvent(MotionEvent event)
{
this.finish();
// onDestroy();
// System.exit(0);
return true;
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
flag=false;
unregisterReceiver(infoReceiver);
super.onDestroy();
}
/** 及时动态修改Activity上文字信息的函数 */
public static void setText()
{
String plugState="";
switch(currentBatteryPlugged)
{
case 0:
plugState="";
break;
case 1:
plugState=batteryPluggedAC;
break;
case 2:
plugState=batteryPluggedUSB;
break;
default:
plugState="";
}
switch(currentBatteryStatus)
{
case 1:
tvBatteryStatus.setText(batteryStatus+batteryStatusUnknown);
break;
case 2:
tvBatteryStatus.setText(batteryStatus+batteryStatusCharging+plugState);
break;
case 3:
tvBatteryStatus.setText(batteryStatus+batteryStatusDischarging);
break;
case 4:
tvBatteryStatus.setText(batteryStatus+batteryStatusNotCharging);
break;
case 5:
tvBatteryStatus.setText(batteryStatus+batteryStatusFull+plugState);
break;
default:
tvBatteryStatus.setText(batteryStatus+batteryStatusUnknown);
}
tvBatteryLevel.setText(batteryLevel+String.valueOf(currentBatteryLevel)+"%");
switch(currentBatteryHealth)
{
case 1:
tvBatteryHealth.setText(batteryHealth+batteryHealthUnknown);
break;
case 2:
tvBatteryHealth.setText(batteryHealth+batteryHealthGood);
break;
case 3:
tvBatteryHealth.setText(batteryHealth+batteryHealthOverheat);
break;
case 4:
tvBatteryHealth.setText(batteryHealth+batteryHealthDead);
break;
case 5:
tvBatteryHealth.setText(batteryHealth+batteryHealthOverVoltage);
break;
case 6:
tvBatteryHealth.setText(batteryHealth+batteryHealthUnspecifiedFailure);
break;
case 7:
tvBatteryHealth.setText(batteryHealth+batteryHealthCold);
break;
default:
tvBatteryHealth.setText(batteryHealth+batteryHealthUnknown);
}
tvBatteryTemperature.setText(batteryTemperature+currentBatteryTemperature/10f+"℃");
tvBatteryVoltage.setText(batteryVoltage+currentBatteryVoltage+"mv");
tvBatteryTechnology.setText(batteryTechnology+currentBatteryTechnology);
}
/** 提示信息变化的service，约每隔一秒，就发送intent，
* 提醒activity更新电池信息，主要为了检测电池状态的变化，
* 例如连上充电时，状态会从“未在充电”变为“正在充电”
* 通过调用plugged方式，还能判断是AC方式充电还是USB方式充电
*/
public static class updateService extends Service{
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
/** 定义得到电池信息的BroadcastReceiver，提取出关键信息，存入变量中 */
private BroadcastReceiver batteryReceiver=new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
currentBatteryStatus=intent.getIntExtra("status", 0);
currentBatteryLevel=intent.getIntExtra("level", 0);
currentBatteryHealth=intent.getIntExtra("health", 0);
currentBatteryTemperature=intent.getIntExtra("temperature",0);
currentBatteryVoltage=intent.getIntExtra("voltage",0);
currentBatteryTechnology=intent.getStringExtra("technology");
currentBatteryPlugged=intent.getIntExtra("plugged",0);
}
};
public void onStart(Intent intent,int startId)
{
registerReceiver(batteryReceiver,new IntentFilter(Intent.ACTION_BATTERY_CHANGED));//注册BroadcastReceiver
/** 启动一个线程，约每隔一秒就发送intent提醒Activity更新电池信息 */
new Thread()
{
public void run()
{
while(flag)
{
Intent sendInfoToActivity=new Intent();
sendInfoToActivity.setAction("com.ritterliu.newBatteryWidget");
sendBroadcast(sendInfoToActivity);
try
{
Thread.sleep(1000);
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
}
}.start();
super.onStart(intent, startId);
}
}
}
package com.ritterliu.newBatteryWidget;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.IBinder;
import android.util.Log;
import android.widget.RemoteViews;
import android.widget.Toast;
public class NewBatteryWidget extends AppWidgetProvider{
private static int currentBatteryLevel;
private static int currentBatteryStatus;
private static boolean firstTimeToCreate=true;
public void onUpdate(Context context,AppWidgetManager appWidgetManager,int[] appWidgetIds)
{
super.onUpdate(context, appWidgetManager, appWidgetIds);
/** 启动自动更新电池信息的service */
context.startService(new Intent(context,updateService.class));
/** 为AppWidget设置点击事件的响应，启动显示电池信息详情的activity */
Intent startActivityIntent = new Intent(context,NewBatteryInfoActivity.class);
PendingIntent Pintent = PendingIntent.getActivity(context,0,startActivityIntent,0);
RemoteViews views = new RemoteViews(context.getPackageName(),R.layout.newrelativelayout);
views.setOnClickPendingIntent(R.id.imageView,Pintent);
appWidgetManager.updateAppWidget(appWidgetIds,views);
}
/** 自动更新电池信息的service,通过AlarmManager实现定时不间断地发送电池信息 */
public static class updateService extends Service{
Bitmap bmp; //定义机器人图片
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
/** 定义一个接收电池信息的broascastReceiver */
private BroadcastReceiver batteryReceiver=new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
currentBatteryLevel=intent.getIntExtra("level", 0);
currentBatteryStatus=intent.getIntExtra("status", 0);
}
};
private BroadcastReceiver powerConnectedReceiver=new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
setViews();
}
};
private BroadcastReceiver powerDisconnectedReceiver=new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
setViews();
}
};
/** 设置Widget的显示 */
private void setViews()
{
/** 定义一个AppWidgetManager */
AppWidgetManager manager=AppWidgetManager.getInstance(this);
/** 定义一个RemoteViews，实现对AppWidget界面控制 */
RemoteViews views=new RemoteViews(getPackageName(),R.layout.newrelativelayout);
if(currentBatteryStatus==2||currentBatteryStatus==5) //当正在充电或充满电时，显示充电的图片
{
if(currentBatteryLevel>=95)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.jcharge);
}
else if(currentBatteryLevel>=85&& currentBatteryLevel<95)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.icharge);
}
else if(currentBatteryLevel>=75&& currentBatteryLevel<85)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.hcharge);
}
else if(currentBatteryLevel>=65&& currentBatteryLevel<75)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.gcharge);
}
else if(currentBatteryLevel>=55&& currentBatteryLevel<65)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.fcharge);
}
else if(currentBatteryLevel>=45&& currentBatteryLevel<55)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.echarge);
}
else if(currentBatteryLevel>=35&& currentBatteryLevel<45)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.dcharge);
}
else if(currentBatteryLevel>=25&& currentBatteryLevel<35)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.ccharge);
}
else if(currentBatteryLevel>=15&& currentBatteryLevel<25)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.bcharge);
}
else
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.acharge);
}
}
else //未在充电时，显示不在充电状态的系列图片
{
if(currentBatteryLevel>=95)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.j);
}
else if(currentBatteryLevel>=85&& currentBatteryLevel<95)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.i);
}
else if(currentBatteryLevel>=75&& currentBatteryLevel<85)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.h);
}
else if(currentBatteryLevel>=65&& currentBatteryLevel<75)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.g);
}
else if(currentBatteryLevel>=55&& currentBatteryLevel<65)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.f);
}
else if(currentBatteryLevel>=45&& currentBatteryLevel<55)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.e);
}
else if(currentBatteryLevel>=35&& currentBatteryLevel<45)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.d);
}
else if(currentBatteryLevel>=25&& currentBatteryLevel<35)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.c);
}
else if(currentBatteryLevel>=15&& currentBatteryLevel<25)
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.b);
}
else
{
bmp=BitmapFactory.decodeResource(getResources(),R.drawable.a);
}
}
/** 设置AppWidget上显示的图片和文字的内容 */
views.setImageViewBitmap(R.id.imageView,bmp);
views.setTextViewText(R.id.tv,currentBatteryLevel+"%");
ComponentName thisWidget=new ComponentName(this,NewBatteryWidget.class);
/** 更新AppWidget */
manager.updateAppWidget(thisWidget, views);
}
public void onStart(Intent intent,int startId)
{
super.onStart(intent, startId);
/** 注册接收器 */
registerReceiver(batteryReceiver,new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
/** 增加了对于POWER_CONNECTED和DISCONNECTED事件的监听，
* 以实现充电时信息的动态变化，避免了原来需要依赖AlarmManager
* 每隔一秒发送检测信息来实现，节约了电量，用原来隔一秒更新的方法，
* 经过一夜测试，插件耗电量居然占到了8%，汗。。。
*
* */
registerReceiver(powerConnectedReceiver,new IntentFilter(Intent.ACTION_POWER_CONNECTED));
registerReceiver(powerDisconnectedReceiver,new IntentFilter(Intent.ACTION_POWER_DISCONNECTED ));
/** 使用AlarmManager实现，第一次启动Widget时隔一秒立即更新，
* 以后均为一分钟发送一次更新提示信息，实现信息实时动态变化，
* 实现节电功能
* */
long now=System.currentTimeMillis();
long pause;
if(firstTimeToCreate)
{
firstTimeToCreate=false;
pause=1000;
}
else
{
pause=1000*60*2;
}
Intent alarmIntent=new Intent();
alarmIntent=intent;
PendingIntent pendingIntent=PendingIntent.getService(this, 0, alarmIntent, 0);
AlarmManager alarm=(AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarm.set(AlarmManager.RTC_WAKEUP,now+pause,pendingIntent);
setViews();
}
}
}