Let's talk about a man
2008-01-08 23:22
288 查看
如果拟开发一个网络应用的程序,首先考虑是否接入网络,在Android手机中判断是否联网可以通过 ConnectivityManager 类的isAvailable()方法判断,
首先获取网络通讯类的实例 ConnectivityManager cwjManager=(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); ,使用cwjManager.getActiveNetworkInfo().isAvailable();
来返回是否有效,如果为True则表示当前Android手机已经联网,可能是WiFi或GPRS、HSDPA等等,具体的可以通过ConnectivityManager 类的getActiveNetworkInfo() 方法判断详细的接入方式,
需要注意的是有关调用需要加入<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission> 这个权限,android开发网提醒大家在真机上Market和Browser程序都使用了这个方法,来判断是否继续,同时在一些网络超时的时候也可以检 查下网络连接是否存在,以免浪费手机上的电力资源。
转至:http://tonyyu.iteye.com/blog/671291
首先获取网络通讯类的实例 ConnectivityManager cwjManager=(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); ,使用cwjManager.getActiveNetworkInfo().isAvailable();
来返回是否有效,如果为True则表示当前Android手机已经联网,可能是WiFi或GPRS、HSDPA等等,具体的可以通过ConnectivityManager 类的getActiveNetworkInfo() 方法判断详细的接入方式,
需要注意的是有关调用需要加入<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission> 这个权限,android开发网提醒大家在真机上Market和Browser程序都使用了这个方法,来判断是否继续,同时在一些网络超时的时候也可以检 查下网络连接是否存在,以免浪费手机上的电力资源。
转至:http://tonyyu.iteye.com/blog/671291
相关文章推荐
- Let's talk about SharePoint 2010
- Let's talk about SharePoint 2010
- 每日英语:Why Rate Your Marriage? A Numerical Score Can Help Couples Talk About Problems
- Hadoop的那些事儿(转自:http://www.searchtb.com/2010/11/talk-about-hadoop.html)
- talk about read the books
- Talk some about ACM competition
- Talk about ReactNative Image Component
- Wizards not to talk about felony gun conviction
- I am a fresh man about program~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Talk about how to write good C# code from a bug
- talk about 3-tier architecture
- OK, let's talk about ASUS
- Talk About 2.5G And 5G
- Talk about VR
- Talk briefly about captcha bypass service
- Let's talk about search engine...
- talk about Qt
- HOW TO TALK ABOUT VARIOUS PRACTIONERS学习笔记
- talk about the senseless
- 如何学习掌握一个分布式系统-What We Talk About When We Talk About Distributed