原文地址：http://developer.android.com/tools/support-library/index.html

 
Android Support Library包是一个代码库的集合，这个集合提供Android framework API的向下兼容版本，并提供原本只通过库（译者注：这个库指新版本的库）的API才能使用的功能。每一个Support Library是针对一个特定的Android API级别向下兼容的。这种设计意味着你的应用可以使用库（译者注：这个库指新版本的库）的功能，并且可以和运行Android1.6（API level 4）或以上版本的设备兼容。

原文：The Android Support Library package is a set of code libraries that provide backward-compatible versions of Android framework APIs as well as features that are only available through the library APIs. Each Support Library is backward-compatible to a specific Android API level. This design means that your applications can use the libraries' features and still be compatible with devices running Android 1.6 (API level 4) and up.

这个指南提供了一些信息，这些信息包括利用Support Library可以使用哪些功能，如何在你的开发环境中使用这些功能，以及库的发布管理。

原文：This guide provides information about what features are enabled by the Support Libraries, how to use them in your development environment and information about library releases.

概述

对于应用开发者来说，在Android项目中引入Support Library是一种最佳做法，这依赖于你的应用设置的目标平台版本的范围和它用到的API。利用库提供的功能可以帮助你提升应用的外观，提升系统性能并扩大应用的用户使用范围。如果你使用了Android code template（代码模板）工具，你会注意到所有的应用模板默认包含了一个或多个Support Library。

原文：Including the Support Libraries in your Android project is considered a best practice for application developers, depending on the range of platform versions your app is targeting and the APIs that it uses. Using the features the libraries provide can help you improve the look of your application, increase performance and broaden the reach of your application to more users. If you use the Android code template tools, you will notice that all the Android application templates include one or more of the Support Libraries by default.

每一个Support Library设定了一个目标的基础Android API级别，并且提供了不通的功能集合。为了高效地使用这些库，需要着重考虑一下你想使用哪些功能，并且理解每一个库在不同的Android API级别都支持哪些功能。开始前，回顾一下Support Library Features指南。然后，进入Support Library Setup主题学习一下如何将Support Library合并到你的应用。想要了解更多关于Support Library API的细节，查看API参考中的android.support包。

原文：The Support Libraries each target a base Android API level and each provides a different set of features. In order to effectively use the libraries, it is important to consider what features you want to support and understand what features are supported by each library at what Android API level. To get started, review the Support Library Features guide. After that, go to the Support Library Setup topic to learn how to incorporate the Support Libraries into your application. For more details about Support Library APIs, see the android.support packages in the API reference.

版本修订

关于版本修订可以查看这里：http://developer.android.com/tools/support-library/index.html#revisions 

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原文地址：http://developer.android.com/tools/support-library/features.html

在Android Support Library包中，包含了几个可以被引入到你应用的库。每一个库支持一个特定的Android平台版本范围和功能集合。

原文：The Android Support Library package contains several libraries that can be included in your application. Each of these libraries supports a specific range of Android platform versions and set of features.

这个指南解释了Support Library提供的重要功能和版本，这将帮助你决定你的应用选择哪一个功能和版本。总的来说，我们推荐引入v4 support和 v7 appcompat的库，因为它们支持的Android版本很广泛，并为推荐的用户界面样式提供API。

原文：This guide explains the important features and version support provided by the Support Libraries to help you decide which of them you should include in your application. In general, we recommend including the v4 support and  v7 appcompat libraries, because they support a wide range of Android versions and provide APIs for recommended user interface patterns.

想要使用任何下面的库，你必须将库文件下载到你安装的Android SDK中。在Support Library Setup中根据指引下载Support Library，来完成这一步骤。你必须采取额外的措施来引入一个特殊的Support Library到你的应用中。查看下面每一个库章节的末尾来获取重要信息，这些信息阐述了如何将库引入你的应用中。

原文：In order to use any of the following libraries, you must download the library files to your Android SDK installation. Follow the directions for downloading the Support Libraries in Support Library Setup to complete this step. You must take additional steps to include a specific Support Library in your application. See the end of each library section below for important information on how to include the library in your application.

v4 Support Library

这个库是为Android 1.6（API level 4）和更高版本设计的。相对于其他库，他包含的API集合最大，包括对应用组件、用户界面功能、辅助功能、数据处理、网络连接和编程工具的支持。这里有一些包含在v4库中的关键类：（此处偷个懒，省去关键类的翻译500字^_^）

原文：This library is designed to be used with Android 1.6 (API level 4) and higher. It includes the largest set of APIs compared to the other libraries, including support for application components, user interface features, accessibility, data handling, network connectivity, and programming utilities. Here are a few of the key classes included in the v4 library:

• App Components
  • Fragment - Adds support encapsulation of user interface and functionality with Fragments, enabling applications provide layouts that adjust between small and large-screen devices.
  • NotificationCompat - Adds support for rich notification features.
  • LocalBroadcastManager - Allows applications to easily register for and receive intents within a single application without broadcasting them globally.
• User Interface
  • ViewPager - Adds a ViewGroup that manages the layout for the child views, which the user can swipe between.
  • PagerTitleStrip - Adds a non-interactive title strip, that can be added as a child of ViewPager.
  • PagerTabStrip - Adds a navigation widget for switching between paged views, that can also be used with ViewPager.
  • DrawerLayout - Adds support for creating a Navigation Drawer that can be pulled in from the edge of a window.
  • SlidingPaneLayout - Adds widget for creating linked summary and detail views that appropriately adapt to various screen sizes.
• Accessibility
  • ExploreByTouchHelper - Adds a helper class for implementing accessibility support for custom views.
  • AccessibilityEventCompat - Adds support for AccessibilityEvent. For more information about implementing accessibility, see Accessibility.
  • AccessibilityNodeInfoCompat - Adds support for AccessibilityNodeInfo.
  • AccessibilityNodeProviderCompat - Adds support for AccessibilityNodeProvider.
  • AccessibilityDelegateCompat - Adds support for View.AccessibilityDelegate.
• Content
  • Loader - Adds support for asynchronous loading of data. The library also provides concrete implementations of this class, including CursorLoader and AsyncTaskLoader.
  • FileProvider - Adds support for sharing of private files between applications.

还有很多其他API包含在这个库中。在API引用中查看 android.support.v4包，以获取关于v4 Support Library API的全部和详细的信息。

　不用切换到另一个页面，也不用去按菜单的硬件按钮，直接在界面上一个按钮点击，菜单就滑出来，而且感觉能放很多东西。

　　关于实现，搜索了一下，有如下两种：

1.用SlidingDrawer：

http://developer.android.com/reference/android/widget/SlidingDrawer.html

　　但是不知道为什么这个类官方不建议再继续用了：

Deprecated since API level 17

Linux常用的压缩及解压缩命令如表2-5所示。

　　表2-5 Linux常用的压缩及解压缩命令说明

支持的視頻格式;
Video: H.264 (AVC), MKV, MPEG-1, MPEG-4 part 2 (ASP), DivX, XviD, MJPEG
Containers: Matroska, TS, PS, 3GPP, MOV, AVI, MPEG-4, NSV

已測試通過機型：3250.N71.N80.N73

此軟件理論支持：
Nokia N71 (S60 3rd Edition), Nokia 3250 (S60 3rd Edition), Nokia N73 (S60 3rd Edition), Nokia N91 (S60 3rd Edition), Nokia E60 (S60 3rd Edition), Nokia E61(S60 3rd Edition), Nokia E70 (S60 3rd Edition), Nokia E50 (S60 3rd Edition), Nokia 5500d (S60 3rd Edition), Nokia N80 (S60 3rd Edition), Nokia E62 (S60 3rd Edition)

CorePlayer 簽名過期,把手機日期調前一點就OK

在進行室內電線佈置的時候，會進行電線穿管，那麼電線穿管過程是怎樣的呢？

　　1. 將做好了的線盒其服帖地嵌入開好的牆體內，注意：接線盒一定要擺放端正，否則外面的面板也會隨之歪斜的。

　　2. 算好管材從線盒到地面的距離，進行管材的彎著，有經驗的施工隊這是還有特別的處理，保證彎折順暢，管材不破裂。

　　3. 現在就可以將管材和線盒連接起來了，彎折處正好順暢地架在地面上，有經驗的施工隊一般都是一次成功的。

　　4. 新管材的穿線可以不用到鋼絲，但如果是穿貴重的音響線或長距離的穿線比較規範的做法就要用鋼絲了。