Android4.4.X调用Alarmmanager接口

    /**
     * Returns whether the SDK is KitKat or later
     */
    public static boolean isKitKatOrLater() {
        return Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR2;
    }
    
     if (isKitKatOrLater()) {
            am.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeInMillis, pendingIntent);
        } else {
            am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeInMillis, pendingIntent);
     }