如何用HTML+JS实现Android闹钟功能

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参数：

argu：型如"key1=value1;key2=value2;......"的参数表。首先，该参数表支持rexseeNotification.show()函数的所有参数，用于显示通知(调用rexseeNotification.show())，请参见rexseeNotification。另外，该参数表增加了以下参数：

forcerepeat：true或false。当该闹钟是由推送信息而非页面设定时，如果id和之前的推送信息的id重复，由该参数决定是否强制重新执行，默认为false，即不会重复执行任何id重复的推送信息。

command：闹钟响时要执行的命令，目前支持的命令包括：

notification：发送通知，默认值。

startApplication：启动程序。

cleanApplicationData：清楚本程序的业务数据(私有内存中的所有数据)。

notificationimmediately：true或false，无论命令是否notification，该参数都允许系统在设置闹钟的***时间先发送一个通知，然后在指定的时间延迟后再执行命令，默认为false。

notificationafterexec：true或false，无论命令是否notification，该参数都允许系统在执行完命令后发送一个通知，默认为false。

alermname：闹钟的名称，默认为"defaultAlerm"。

alermfirsttime：时间戳，***次闹钟响(即执行命令)的时间，如果设为0或其他小于当前时间的时间戳，命令将立即执行，默认为立即执行。

alermrepeatinterval：毫秒数，***次闹钟响之后，间隔该时间后重复执行命令，如果小于零，将不会重复执行。

startApplicationUrl：如果命令为startApplication，程序启动后访问的URL地址。

示例：

exseeAlarm.set('command=startApplication;startApplicationUrl=http://www.rexsee.com/rexsee/alarmClock.html;alermName=test;alermfirsttime='+(rexseeAlarm.getCurrentTime()+5000)+';title=闹钟测试;message=闹钟测试内容;url=http://www.rexsee.com/rexsee/alarmClock.html');  rexseeDialog.toast('设置完毕！');

Rexsee的Android Alarm源码如下：

/*  * Copyright (C) 2011 The Rexsee Open Source Project  *  * Licensed under the Rexsee License, Version 1.0 (the "License");  * you may not use this file except in compliance with the License.  * You may obtain a copy of the License at  *  *      http://www.rexsee.com/CN/legal/license.html  *  * Unless required by applicable law or agreed to in writing, software  * distributed under the License is distributed on an "AS IS" BASIS,  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  * See the License for the specific language governing permissions and  * limitations under the License.  */   package rexsee.core.alarm;    import rexsee.core.browser.JavascriptInterface;   import rexsee.core.browser.RexseeBrowser;   import rexsee.core.device.NotificationArgumentsSheet;   import rexsee.core.device.RexseeNotification;   import rexsee.core.receiver._Receiver;   import android.app.AlarmManager;   import android.app.PendingIntent;   import android.content.Context;   import android.content.Intent;   import android.database.Cursor;   import android.database.sqlite.SQLiteDatabase;    public class RexseeAlarm implements JavascriptInterface {           private static final String INTERFACE_NAME = "Alarm";          @Override          public String getInterfaceName() {                  return mBrowser.application.resources.prefix + INTERFACE_NAME;          }          @Override          public JavascriptInterface getInheritInterface(RexseeBrowser childBrowser) {                  return this;          }          @Override          public JavascriptInterface getNewInterface(RexseeBrowser childBrowser) {                  return new RexseeAlarm(childBrowser);          }           public static final String ALARM_ACTION = "action.alarm.id_";          public static final String ALARM_EXTRA_ARGU = "argu";           public static final String DATABASE_ALARM = "alarm.db";          public static final String TABLE_ALARM = "alarm";           private final Context mContext;          private final RexseeBrowser mBrowser;           public RexseeAlarm(RexseeBrowser browser) {                  mBrowser = browser;                  mContext = browser.getContext();          }          public RexseeAlarm(Context context) {                  mBrowser = null;                  mContext = context;          }           private static void _setAlarm(Context context, AlarmManager mgr, String body, boolean save) {                  NotificationArgumentsSheet argu = (new NotificationArgumentsSheet()).parseArguments(body);                  if (argu.notificationimmediately) {                          (new RexseeNotification(context)).show(argu);                  }                  if (argu.getAlermFirstTime() > System.currentTimeMillis()) {                          Intent intent = new Intent(context, _Receiver.class);                          intent.setAction(ALARM_ACTION + argu.alermname);                          intent.putExtra(ALARM_EXTRA_ARGU, body);                          PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);                          mgr.cancel(pendingIntent);                          long interval = argu.getAlermRepeatInterval();                          if (interval > 0) {                                  mgr.setRepeating(AlarmManager.RTC_WAKEUP, argu.getAlermFirstTime(), interval, pendingIntent);                          } else {                                  mgr.set(AlarmManager.RTC_WAKEUP, argu.getAlermFirstTime(), pendingIntent);                          }                          if (save) {                                  SQLiteDatabase db = context.openOrCreateDatabase(DATABASE_ALARM, Context.MODE_PRIVATE, null);                                  try {                                          db.execSQL("CREATE TABLE if not exists " + TABLE_ALARM + " (name TEXT, argu TEXT, Primary key(name));");                                          db.execSQL("DELETE FROM " + TABLE_ALARM + " WHERE name='" + argu.alermname + "';");                                          db.execSQL("INSERT INTO " + TABLE_ALARM + " VALUES ('" + argu.alermname + "', '" + body + "');");                                  } catch (Exception e) {                                  }                                  db.close();                          }                  } else {                          exec(context, body);                  }          }          private static void _deleteAlarm(Context context, String name) {                  SQLiteDatabase db = context.openOrCreateDatabase(DATABASE_ALARM, Context.MODE_PRIVATE, null);                  try {                          db.execSQL("DELETE FROM " + TABLE_ALARM + " WHERE name='" + name + "';");                  } catch (Exception e) {                  }                  db.close();          }           public static void exec(Context context, String body) {                  NotificationArgumentsSheet argu = (new NotificationArgumentsSheet()).parseArguments(body);                  if (argu.getAlermRepeatInterval() <= 0) {                          _deleteAlarm(context, argu.alermname);                  }                  (new RexseeRemoteCommand(context, body)).exec();          }          public static void updateAlarm(Context context) {                  SQLiteDatabase db = context.openOrCreateDatabase(DATABASE_ALARM, Context.MODE_PRIVATE, null);                  AlarmManager mgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);                  try {                          db.execSQL("CREATE TABLE if not exists " + TABLE_ALARM + " (name TEXT, argu TEXT, Primary key(name));");                          Cursor cursor = db.rawQuery("SELECT * from " + TABLE_ALARM + ";", null);                          if (cursor != null && cursor.getCount() != 0) {                                  for (int i = 0; i < cursor.getCount(); i++) {                                          cursor.moveToPosition(i);                                          _setAlarm(context, mgr, cursor.getString(1), false);                                  }                          }                          cursor.close();                  } catch (Exception e) {                  }                  db.close();          }           //JavaScript Interface          public void set(String body) {                  _setAlarm(mContext, (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE), body, true);          }          public String get() {                  SQLiteDatabase db = mContext.openOrCreateDatabase(DATABASE_ALARM, Context.MODE_PRIVATE, null);                  String rtn = "";                  try {                          Cursor cursor = db.rawQuery("SELECT * from " + TABLE_ALARM + ";", null);                          if (cursor != null && cursor.getCount() != 0) {                                  for (int i = 0; i < cursor.getCount(); i++) {                                          cursor.moveToPosition(i);                                          if (i > 0) rtn += ",";                                          rtn += "{";                                          rtn += "\"name\":\"" + cursor.getString(0) + "\"";                                          rtn += ",\"argu\":\"" + cursor.getString(1) + "\"";                                          rtn += "}";                                  }                          }                          cursor.close();                  } catch (Exception e) {                          if (mBrowser != null) mBrowser.exception(getInterfaceName(), e);                  }                  db.close();                  return "[" + rtn + "]";          }          public void cancel(String name) {                  Intent intent = new Intent(mContext, _Receiver.class);                  intent.setAction(ALARM_ACTION + name);                  PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);                  AlarmManager mgr = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);                  mgr.cancel(pendingIntent);                  _deleteAlarm(mContext, name);          }           public long getCurrentTime() {                  return System.currentTimeMillis();          }          public long getMillisPerHour() {                  return 3600 * 1000;          }          public long getMillisPerDay() {                  return 3600 * 1000 * 24;          }    }

以上就是如何用HTML+JS实现Android闹钟功能，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注行业资讯频道。