是否可以在每次触发时更改AlarmManager的意图？

Question

每次触发Intent时，是否可以更改AlarmManager及其附加内容？

Answer 1

AlarmManager am=(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, Alarm.class);
// Extras aren't used to find the PendingIntent
PendingIntent pi = PendingIntent.getBroadcast(context, tag, i,
        PendingIntent.FLAG_NO_CREATE); // find the old PendingIntent
if (pi != null) {
    // Now cancel the alarm that matches the old PendingIntent
    am.cancel(pi);
}
// Now create and schedule a new Alarm
i = new Intent(context, NewAlarm.class); // New component for alarm
i.putExtra("position", tag); // Whatever new extras
pi = PendingIntent.getBroadcast(context, tag, i, PendingIntent.FLAG_CANCEL_CURRENT);
// Reschedule the alarm
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+ time, pi); // Millisec * Second * Minute

是每次你需要取消当前的那个并启动新的，如果你想在Intent中做任何更改，比如数据附加，动作，组件等。