设置APN上网时,大家可能经常遇到这个问题: 为什么有时要填写default有时要填写supl,而彩信又偏偏要mms? 这个问题留到最后,让我们看看每个接入点类型的含义: 英文原文来自于Google Android Developers 原文连接:http://developer./reference/android/net/ConnectivityManager.html 我尽量用通俗易懂的语言来解释每个类型的含义,若您是开发者,请尽量阅读英文原文。 1、default 默认网络连接,当激活时所有数据传输都使用该连接,不能与其他网络连接同时使用 ?View Code JAVA 123456 | [java] view plaincopyprint? - 'color: rgb(8, 0, 0); font-style: italic; font-weight: bold;'>/**
- * The Default Mobile data connection. When active, all data traffic
- * will use this connection by default. Should not coexist with other
- * default connections.
- */
- 'color: rgb(0, 0, 0); font-weight: bold;'>public 'color: rgb(0, 0, 0); font-weight: bold;'>static 'color: rgb(0, 0, 0); font-weight: bold;'>final 'color: rgb(0, 102, 0); font-weight: bold;'>int TYPE_MOBILE 'color: rgb(51, 153, 51);'>= 'color: rgb(204, 102, 204);'>0'color: rgb(51, 153, 51);'>;
[java] view plaincopyprint? - 'color:#880000;font-style: italic; font-weight: bold;'>/**
- * The Default Mobile data connection. When active, all data traffic
- * will use this connection by default. Should not coexist with other
- * default connections.
- */
- 'color:#000000;font-weight: bold;'>public 'color:#000000;font-weight: bold;'>static 'color:#000000;font-weight: bold;'>final 'color:#0660;font-weight: bold;'>int TYPE_MOBILE 'color:#339933;'>= 'color:#cc66cc;'>0'color:#339933;'>;
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适用场合:绝大部分正常上网时可以使用 2、mms 彩信专用连接,此连接与default类似,用于与载体的多媒体信息服务器对话的应用程序,此连接能与default连接同时使用 ?View Code JAVA 1234567 | [java] view plaincopyprint? - 'color: rgb(8, 0, 0); font-style: italic; font-weight: bold;'>/**
- * An MMS-specific Mobile data connection. This connection may be the
- * same as TYPE_MOBILE but it may be different. This is used
- * by applications needing to talk to the carrier's Multimedia Messaging
- * Service servers. It may coexist with default data connections.
- */
- 'color: rgb(0, 0, 0); font-weight: bold;'>public 'color: rgb(0, 0, 0); font-weight: bold;'>static 'color: rgb(0, 0, 0); font-weight: bold;'>final 'color: rgb(0, 102, 0); font-weight: bold;'>int TYPE_MOBILE_MMS 'color: rgb(51, 153, 51);'>= 'color: rgb(204, 102, 204);'>2'color: rgb(51, 153, 51);'>;
[java] view plaincopyprint? - 'color:#880000;font-style: italic; font-weight: bold;'>/**
- * An MMS-specific Mobile data connection. This connection may be the
- * same as TYPE_MOBILE but it may be different. This is used
- * by applications needing to talk to the carrier's Multimedia Messaging
- * Service servers. It may coexist with default data connections.
- */
- 'color:#000000;font-weight: bold;'>public 'color:#000000;font-weight: bold;'>static 'color:#000000;font-weight: bold;'>final 'color:#0660;font-weight: bold;'>int TYPE_MOBILE_MMS 'color:#339933;'>= 'color:#cc66cc;'>2'color:#339933;'>;
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适用场合:使用彩信服务时,必须有mms类型的接入点,不必选中,应用程序会自动使用此接入点 3、supl 是Secure User Plane Location“安全用户面定位”的简写,此连接与default类似,用于帮助定位设备与载体的安全用户面定位服务器对话的应用程序,此连接能与default连接同时使用 ?View Code JAVA 123456789 | [java] view plaincopyprint? - 'color: rgb(8, 0, 0); font-style: italic; font-weight: bold;'>/**
- * A SUPL-specific Mobile data connection. This connection may be the
- * same as {@link #TYPEMOBILE} but it may be different. This is used
- * by applications needing to talk to the carrier's Secure User Plane
- * Location servers for help locating the device. It may coexist with
- * default data connections.
- * {@hide}
- */
- 'color: rgb(0, 0, 0); font-weight: bold;'>public 'color: rgb(0, 0, 0); font-weight: bold;'>static 'color: rgb(0, 0, 0); font-weight: bold;'>final 'color: rgb(0, 102, 0); font-weight: bold;'>int TYPE_MOBILE_SUPL 'color: rgb(51, 153, 51);'>= 'color: rgb(204, 102, 204);'>3'color: rgb(51, 153, 51);'>;
[java] view plaincopyprint? - 'color:#880000;font-style: italic; font-weight: bold;'>/**
- * A SUPL-specific Mobile data connection. This connection may be the
- * same as {@link #TYPEMOBILE} but it may be different. This is used
- * by applications needing to talk to the carrier's Secure User Plane
- * Location servers for help locating the device. It may coexist with
- * default data connections.
- * {@hide}
- */
- 'color:#000000;font-weight: bold;'>public 'color:#000000;font-weight: bold;'>static 'color:#000000;font-weight: bold;'>final 'color:#0660;font-weight: bold;'>int TYPE_MOBILE_SUPL 'color:#339933;'>= 'color:#cc66cc;'>3'color:#339933;'>;
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适用场合:需要自动切换wap与net接入点的、需要把手机当临时AP的 对SUPL技术感兴趣的朋友,不妨看下以下文章 SUPL技术(一)http://blog.sina.com.cn/s/blog_537f4a11010008tw.html SUPL技术(二)http://blog.sina.com.cn/s/blog_537f4a11010008uf.html SUPL技术(三)http://blog.sina.com.cn/s/blog_537f4a11010008ws.html SUPL技术(四)http://blog.sina.com.cn/s/blog_537f4a11010008yf.html 4、dun Dial Up Networking拨号网络的简称,此连接与default连接类似,用于执行一个拨号网络网桥,使载体能知道拨号网络流量的应用程序,此连接能与default连接同时使用 ?View Code JAVA 12345678 | [java] view plaincopyprint? - 'color: rgb(8, 0, 0); font-style: italic; font-weight: bold;'>/**
- * A DUN-specific Mobile data connection. This connection may be the
- * same as {@link #TYPEMOBILE} but it may be different. This is used
- * by applicaitons performing a Dial Up Networking bridge so that
- * the carrier is aware of DUN traffic. It may coexist with default data
- * connections.
- */
- 'color: rgb(0, 0, 0); font-weight: bold;'>public 'color: rgb(0, 0, 0); font-weight: bold;'>static 'color: rgb(0, 0, 0); font-weight: bold;'>final 'color: rgb(0, 102, 0); font-weight: bold;'>int TYPE_MOBILE_DUN 'color: rgb(51, 153, 51);'>= 'color: rgb(204, 102, 204);'>4'color: rgb(51, 153, 51);'>;
[java] view plaincopyprint? - 'color:#880000;font-style: italic; font-weight: bold;'>/**
- * A DUN-specific Mobile data connection. This connection may be the
- * same as {@link #TYPEMOBILE} but it may be different. This is used
- * by applicaitons performing a Dial Up Networking bridge so that
- * the carrier is aware of DUN traffic. It may coexist with default data
- * connections.
- */
- 'color:#000000;font-weight: bold;'>public 'color:#000000;font-weight: bold;'>static 'color:#000000;font-weight: bold;'>final 'color:#0660;font-weight: bold;'>int TYPE_MOBILE_DUN 'color:#339933;'>= 'color:#cc66cc;'>4'color:#339933;'>;
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适用场合:需要使用运营商无线热点的,CMCC、ChinaNet等 5、hipri 高优先级网络,与default类似,但路由设置不同。 只有当进程访问移动DNS服务器,并明确要求使用requestRouteToHost(int, int)才会使用此连接 (这个我也不太懂,翻译的应该很有问题….) ?View Code JAVA 123456789 | [java] view plaincopyprint? - 'color: rgb(8, 0, 0); font-style: italic; font-weight: bold;'>/**
- * A High Priority Mobile data connection. This connection is typically
- * the same as {@link #TYPEMOBILE} but the routing setup is different.
- * Only requesting processes will have access to the Mobile DNS servers
- * and only IP's explicitly requested via {@link #requestRouteToHost}
- * will route over this interface.
- *{@hide}
- */
- 'color: rgb(0, 0, 0); font-weight: bold;'>public 'color: rgb(0, 0, 0); font-weight: bold;'>static 'color: rgb(0, 0, 0); font-weight: bold;'>final 'color: rgb(0, 102, 0); font-weight: bold;'>int TYPE_MOBILE_HIPRI 'color: rgb(51, 153, 51);'>= 'color: rgb(204, 102, 204);'>5'color: rgb(51, 153, 51);'>;
[java] view plaincopyprint? - 'color:#880000;font-style: italic; font-weight: bold;'>/**
- * A High Priority Mobile data connection. This connection is typically
- * the same as {@link #TYPEMOBILE} but the routing setup is different.
- * Only requesting processes will have access to the Mobile DNS servers
- * and only IP's explicitly requested via {@link #requestRouteToHost}
- * will route over this interface.
- *{@hide}
- */
- 'color:#000000;font-weight: bold;'>public 'color:#000000;font-weight: bold;'>static 'color:#000000;font-weight: bold;'>final 'color:#0660;font-weight: bold;'>int TYPE_MOBILE_HIPRI 'color:#339933;'>= 'color:#cc
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