android 检查网络是否连接了

[下载]php java javascript 相关 api 手册的下载

 代码如下

 

/**

* 

* @param activity

* @return boolean return true if the application can access the internet

*/

public static boolean hasInternet(Activity activity) {

ConnectivityManager manager = (ConnectivityManager) activity

.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo info = manager.getActiveNetworkInfo();

if (info == null || !info.isConnected()) {

return false;

}

if (info.isRoaming()) {

// here is the roaming option you can change it if you want to

// disable internet while roaming, just return false

return true;

}

return true;

 

}

需要在AndroidManifest.xml中
增加权限：

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

 

[本日志由 80x86 于 2009-11-30 05:28 PM 编辑]


Tags: