/** 获取闹钟 */
 public static ArrayList<AnTimer> getTimer(Context context, String drug_id) {
   ArrayList<AnTimer> array = new ArrayList<AnTimer>();
   SharedPreferences pref =
       context.getSharedPreferences(TIMER_SAVE_PATH + drug_id, Activity.MODE_PRIVATE);
   int count = pref.getInt("count", 0);
   for (int i = 0; i < count; i++) {
     String id = pref.getString("id" + i, "");
     String name = pref.getString("name" + i, "");
     String text = pref.getString("text" + i, "");
     int hour = pref.getInt("hour" + i, -1);
     int min = pref.getInt("min" + i, -1);
     int method = pref.getInt("method" + i, 0);
     String times = pref.getString("times" + i, "0");
     AnTimer timer = new AnTimer(id, name, text, hour, min, method);
     timer.setEnable(pref.getBoolean("enable" + i, true)); // 默认可用
     timer.setTimes(times);
     array.add(timer);
   }
   return array;
 }