Question

我有一个活动，用户选择日期和时间，并将日期输入sqlite数据库。从活动开始，我正在启动一个类似于下面的IntentService

Intent intents = new Intent (this,AlarmIntentService.class);
    startService(intents);

在intentservice中，我将sqlite数据库中的数据与当前系统时间进行比较，并广播警报。

当我第一次调用intentservice时，只有一个条目进入数据库，它工作正常。但是，当用户将第二个数据插入sqlite数据库并启动Intentservice时，它不起作用。

有没有用新数据更新传递的intentservice？

意图服务onhandleintent如下所述

 final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    final SqliteController db = new SqliteController(getApplicationContext());
    List<Greetings> greetings = db.getAllGreetings();
    int k = db.getGreetingsCount();
    String p = String.valueOf(k);
    Log.d("p", p);    
if (db.getGreetingsCount() >= 0) {
        do {
            for (Greetings g : greetings) {
                Calendar cal = Calendar.getInstance();
                d1 = cal.get(Calendar.DAY_OF_MONTH);
                d2 = cal.get(Calendar.MONTH);
                d3 = cal.get(Calendar.YEAR);
                t1 = cal.get(Calendar.HOUR);
                t2 = cal.get(Calendar.MINUTE);
                t3 = cal.get(Calendar.AM_PM);
                if (t3 == 1) {
                    t4 = "PM";
                } else {
                    t4 = "AM";
                }

                tc = String.valueOf(t1) + " : " + t2 + " " + t4;

                d = String.valueOf(d3) + "-" + String.valueOf(d2 + 1) + "-" + String.valueOf(d1);
                cdt = d + "\t" + tc;
                time = g.getTime();
                date = g.getDate();
                phone = g.getPhoneNumber();
                msg = g.getMessage();
                id = g.getID();
                dnt = date + "\t" + time;

                if (dnt.equals(cdt)) {
                    Intent aint = new Intent(getApplicationContext(), AlarmReceiver.class);

                    aint.putExtra("msg", msg);
                    aint.putExtra("phone", phone);
                    aint.putExtra("id", id);
                    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), id, aint, PendingIntent.FLAG_UPDATE_CURRENT);
                    alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pendingIntent);
                    showNotification();
                    db.deleteGreetings(g);
                }

            }
            k = db.getGreetingsCount();

        } while (k != 0);

Answer 1

您可以使用意图过滤器为您的服务电话使用以下代码。

parsing

Answer 2

尝试将所有声明移出循环。它对我有用。

Answer 3

1º创建文件类：

public class ClassAlarm extends BroadcastReceiver
{

    @Override
    public void onReceive(Context context, Intent intent)
    {
       Log.i("BroadCast Alarm", "do anything");         
    }
}

2º在 ANDROIDMANIFEST 文件中注册广播：

<receiver android:name=".ClassAlarm" >
    <intent-filter>
         <action android:name="broadCastAlarm" />
    </intent-filter>
</receiver>

3º您的启动和停止功能警报

您的 AlarmManager 和 PendingIntent 必须是全局变量。

private static AlarmManager alarm       = null;
private static PendingIntent    pintent     = null;


public static void startAlarm(Context context)
{
    if (pintent == null && alarm == null)
    {

        Intent startIntent = new Intent("broadCastAlarm");
        pintent = PendingIntent.getBroadcast(context, 0, startIntent, 0);
        alarm = (AlarmManager) context
                    .getSystemService(Context.ALARM_SERVICE);

        Calendar cal = Calendar.getInstance();

        cal.add(Calendar.SECOND, 0);

        //wait 10000ms
        alarm.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
                    10000, pintent);
    }

}

public static void stop_alarm(Context context)
{
    if (alarm != null && pintent != null)
    {
        pintent.cancel();
        alarm.cancel(pintent);
        alarm = null;
        pintent = null;
    }
}

Intentservice无法正常工作

3 个答案: