所以最简单的方法就是直接自己测试一下。
我在我的电脑上测试了它,这是我得到的:
这些pendingIntents 彼此不同吗?因为意图不同但 Id 相同
-是的,尽管 ID 相同,但它们彼此不同
如果我为每个待处理意图设置警报管理器,它们都会触发还是一个会替换另一个?
-两者都会被触发
这是我的测试代码,你可以复制下来自己尝试一下
将此方法复制到您的活动中,然后调用它
private void setAlarmManager() {
Log.v("AlarmManager", "Configuring AlarmManager...");
Intent startIntent1 = new Intent(context, AlarmReceiverFirst.class);
PendingIntent pendingIntent1 = PendingIntent.getBroadcast(context, 0, startIntent1, PendingIntent.FLAG_CANCEL_CURRENT);
Intent startIntent2 = new Intent(context, AlarmReceiverSecond.class);
PendingIntent pendingIntent2 = PendingIntent.getBroadcast(context, 0, startIntent2, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarm = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 20);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
Log.v("AlarmManager", "Starting AlarmManager for >= KITKAT version");
alarm.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent1);
alarm.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent2);
} else {
Log.v("AlarmManager", "Starting AlarmManager for < KITKAT version");
alarm.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent1);
alarm.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent2);
}
Log.v("AlarmManager", "AlarmManager has been started");
}
创建您的第一个接收器类
public class AlarmReceiverFirst extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.v(this.getClass().getSimpleName(), "first alarm receiver is called");
}
}
创建您的第二个接收器类
public class AlarmReceiverSecond extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.v(this.getClass().getSimpleName(), "second alarm receiver is called");
}
}
将这些接收者注册到您的清单中
<receiver android:name=".AlarmReceiverFirst" />
<receiver android:name=".AlarmReceiverSecond" />
不要混淆,这里你所说的Id叫做请求码。它用于取消待处理的意图。