从活动中发送额外内容以广播接收者

Question

我的应用程序是关于提醒的。 将提醒插入SQLite数据库后，它在AddReminderActivity.java类中正确显示了ID，但在以下代码中在AlarmReciver.java类中返回了ID = 1。

这就是我的额外投入

       Intent intent = new Intent(this, AlarmReciever.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
    intent.putExtra("reminderId", reminderId);
    PendingIntent pendingIntent = 
    PendingIntent.getBroadcast(this.getApplicationContext(), 5, intent, 0);

    AlarmManager mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    assert mAlarmManager != null;
    mAlarmManager.set(AlarmManager.RTC_WAKEUP, milliSecondsFromDate, pendingIntent);

    Toast.makeText(this, "Alarm set at " + selectedDate + " " + timeInHrs, Toast.LENGTH_LONG).show();
    finish();

这就是我越来越

@Override
public void onReceive(Context context, Intent intent) {

    Long reminderId = intent.getLongExtra("reminderId", -1);
    mDatabaseHelper = new DatabaseHelper(context);
    Reminder reminder = mDatabaseHelper.getReminder(reminderId);

    Intent serviceIntent = new Intent(context, TTSService.class);
    if (reminder != null && !reminder.getText().isEmpty()) {
        serviceIntent.putExtra("reminderText", reminder.getText());
    }
    context.startService(serviceIntent);

    Toast.makeText(context, "AlarmReciever..", Toast.LENGTH_LONG).show();

}

Answer 1

使用它来获得额外的

@Override
public void onReceive(Context context, Intent intent) {

    Long reminderId = intent.getExtras().getLong("reminderId", -1);
    mDatabaseHelper = new DatabaseHelper(context);
    Reminder reminder = mDatabaseHelper.getReminder(reminderId);

    Intent serviceIntent = new Intent(context, TTSService.class);
    if (reminder != null && !reminder.getText().isEmpty()) {
        serviceIntent.putExtra("reminderText", reminder.getText());
    }
    context.startService(serviceIntent);

    Toast.makeText(context, "AlarmReciever..", Toast.LENGTH_LONG).show();

}

Answer 2

为了正确设置“ extras”，您需要在对getBroadcast()的调用中使用PendingIntent.FLAG_UPDATE_CURRENT ，如下所示：

PendingIntent pendingIntent = 
    PendingIntent.getBroadcast(this.getApplicationContext(), 5, intent,
        PendingIntent.FLAG_UPDATE_CURRENT);

另外，你确定reminderId的类型是long或Long在您调用代码putExtra()