android check network connection status

If the current network is not connected, an exception is thrown when you directly use postasync in httpclient to initiate a data request. Therefore, the network status should be determined before network data interaction. If the Network is available, perform the

The ping command is used to judge the network, but this is too bad and the delay is long. So I checked it online, it can be determined by calling two dynamic connection libraries that come with Windows API. 1. wininet. dll 2. sensapi. dll Let's talk about the first one first: Wininet. dll can call the internetgetconnectedstate Method Sensapi. dll can call the isnetworkalive Method To use these two methods,

Nbsp; view the number of http processes [root @ localhostconf] # ps-ef | grephttpd | count the number of connections in the wc-l333 status: [root @ localhostconf] # netstat-n | awk/^ tcp/{++ S [$ NF]} END {for (ainS) printa, S [a]} LAST_ACK173SY View http process count[Root @ localhost conf] # ps-ef | grep httpd | wc-l333Count the connection count Status:

{Author: cxgAutomatically checks for network disconnection and prompts for automatic Reconnection} Unit clienttestconnected; Interface UsesSysutils, classes, sqlexpr, unetcommon; type twaitthread = Class (tthread) private {private Declarations} fnetconnect: Boolean; fcheckinterval: integer; fmsg: string; protected procedure showmsg; procedure execute; override; procedure serveropen; procedure serverclose; function connremotesvr (CN

Network 1. Method definition [DllImport ("Wininet.dll")] private extern static bool InternetGetConnectedState (out int connectiondescription, int reservedvalue); 2. Method description Parameters: Connectiondescription: Connection Description Reservedvalue: Reserved values return value: True:on Line False:off Line 3. Calling methods A. You must refer to System.Runtime.InteropServices in your code,

. Same priority, dynamic takes precedence over static. Ignore priority when broadcasting as a normal broadcast, dynamic takes precedence over static We are registering with dynamic broadcast this timeFirst, add permissions to the project, which is a must. Many times it's easy to forgetThe code is affixed:Detect network Connection Status privateconnectivi

there is wifi. Monitor connection changes Connectivitymanager will send a broadcast "Android.net.conn.CONNECTIVITY_CHANGE" When the connection changes, so register and listen to this broadcast to: Copy Code code as follows: Each time it changes from moving data to WiFi, the change can be frequent. It's best to listen to this broadcast only when you pause the download or update. You typica

are the best implementations of network connectivity.If the app wants to use network operations, the following permissions should be included in the manifest file:uses-permission android:name="android.permission.INTERNET" />uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />Select HTTP ClientMost Android apps use HTTP to send and receive da

= new intent (); ComponentName component = new ComponentName ("Com.android.settings", "Com.android.settings.Wirel Esssettings "); Intent.setcomponent (component); Intent.setaction ("Android.intent.action.VIEW"); } startactivity (Intent); } }); Builder.setnegativebutton ("Cancel", new Onclicklistener () {@Override public void OnClick (Dialoginterface dialog, T which) {}}); Builder.create (); Builder.show (); /** * Ne