具有自动更新功能的android报警可扩展列表视图

Question

嗨，伙计们，我有一个可扩展的列表视图，上面有一堆项目，当一个项目单击时，将为项目时间设置一个警报，但是因为它的警报太多，我不能告诉我的客户自己去更改警报我为每个项目编写了一个带有更新代码的数据库，当更新代码（来自服务器）不等于数据库时，一个警报将取消并设置一个新警报，但它不起作用，它还将取消所有列表警报，没有错误我也不知道为什么这是我的可扩展列表视图适配器的代码 getChildView（在更新代码更改之前工作）

 @Override
public View getChildView(int groupPosition, int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {
    ChildTour child =  getChild(groupPosition,
            childPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) context
                .getSystemService(context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.ex_list_tours_child, null);


    }

    CheckAlarms(context,groupPosition,childPosition,dbHelper);

    return convertView;

}

激活码是报警激活码 这是 CheckAlarms 方法

public void CheckAlarms(Context context, int groupPostion, int childPostion, exToursDbHelper dbHelper){
    ChildTour child =  getChild(groupPostion,
            childPostion);
    Intent intent = new Intent(context,AlarmReceiver.class);
    PendingIntent pendingIntent =PendingIntent.getBroadcast(context,child.getTourId(),intent,0);
    int dbUpdateCode=  dbHelper.getUpdateCode(child.getTourId());
    if (dbUpdateCode != child.getUpdateCode() && dbHelper.getActive(child.getTourId()) == 1 ){
        AlarmManager manager = (AlarmManager) context.getSystemService(context.ALARM_SERVICE);
        manager.cancel(pendingIntent);
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.HOUR_OF_DAY, child.getHour());
        calendar.set(Calendar.MINUTE, child.getMin());
        intent.putExtra("prize",child.getPrize());
        intent.putExtra("gameMode",child.getGameMode());
        intent.putExtra("time",child.getTime());
        intent.putExtra("tourId",child.getTourId());
        intent.putExtra("siteurl",child.getmSiteUrl());
        time=(calendar.getTimeInMillis()-(calendar.getTimeInMillis()%60000));
        if(System.currentTimeMillis()>time)
        {
            if (calendar.AM_PM == 0)
                time = time + (1000*60*60*12);
            else
                time = time + (1000*60*60*24);
        }
        manager.set(AlarmManager.RTC_WAKEUP,time, pendingIntent);
        dbHelper.UpdateCode(child.getTourId(),child);
        Log.i("database","alarm with Id " +child.getTourId()+"is Updated");
    }
    Log.i("database","updateCode : "+child.getUpdateCode()+" databaseUpdate Code: "+dbUpdateCode);
}

我想知道为什么不工作，如果感谢你们，它的工作是标准方式吗？

这是日志

    01-09 05:33:33.482 23779-23779/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:33:33.502 23779-23779/app.mma.introsliderproject I/database: updateCode : 4 databaseUpdate Code: 4
01-09 05:33:33.522 23779-23779/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:33:33.532 23779-23779/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:33:33.552 23779-23779/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:33:33.562 23779-23779/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:33:33.582 23779-23779/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1

并在更改更新代码后

    01-09 05:34:42.462 25303-25303/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:34:42.482 25303-25303/app.mma.introsliderproject I/database: alarm with Id 2is Updated
01-09 05:34:42.482 25303-25303/app.mma.introsliderproject I/database: updateCode : 5 databaseUpdate Code: 4
01-09 05:34:42.492 25303-25303/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:34:42.512 25303-25303/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:34:42.522 25303-25303/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:34:42.542 25303-25303/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1
01-09 05:34:42.552 25303-25303/app.mma.introsliderproject I/database: updateCode : 1 databaseUpdate Code: 1

如果还需要什么请告诉我

Answer 1

我会创建一个自定义对象并将其作为标签 (getTag) 添加到列表中的视图中以从那里跟踪状态，这样如果您需要设置取消设置给定的警报，您可以在点击时充分观察.

public class AlarmState = {
    public boolean isOn = false;
    public Date changeDate;
}

public View getChildView(int groupPosition, int childPosition,
                     boolean isLastChild, View convertView, ViewGroup parent) {
    ChildTour child =  getChild(groupPosition,
        childPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) context
            .getSystemService(context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.ex_list_tours_child, null);
        AlarmState alarm = new AlarmState;
        alarm.isOn = true;
        alarm.changeDate = new Date();
        convertView.setTag(alarm);

    }

    CheckAlarms(context,groupPosition,childPosition,dbHelper);

    return convertView;

}

然后您可以将点击处理程序添加到您的列表活动

ListView list = (ListView)findViewById(R.id.listView1);

list.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
            AlarmState alarm = (AlarmState)view.getTag();
            if (alarm.isOn) {
              // send braodcast to turn it off
            else {
              // send braodcast to turn it on
            }
        }
    });