android wifi assist

Objective:When using some apps, such as Google Play, when not connected to the network, the app will automatically jump to the system's own WiFi connection interface (such as), in this interface to connect WiFi has a good feature: When the WiFi hotspot is not connected, the "next" button is not clickable, This experience is very good and ensures that a network is

{returnloadfileasstring ("/sys/class/net/eth0/address"). toUpperCase (locale.english). substring (0, NBSP;17);} catch (Ioexceptione) {returnnull;}} Privatestringloadfileasstring (Stringfilepath) throwsjava.io.IOException{ StringBufferfileData=new StringBuffer (bufferedreaderreader); =newbufferedreader (Newfilereader (filePath)); char[]buf=newchar[1024];intnumRead=0; while ((Numread=reader.read (BUF)) !=-1) { stringreaddata=string.valueof (Buf,0,numread); filedata.append (ReadData); } reader.clo

I mac Pro, system version OS X EI Capitan (10.11) produced at the beginning of 2015Previously believed that the Mac shared WiFi can only be given to Apple devices, later found that the original is not. We just need to make the band 6 more 11 (Universal) or (WiFi 5G), very convenient, no need to install any software.Specific operation: Click on the top left corner of the mouse, select "System Preferenc

============ Problem Description ============Recently made an Android application, testing found that if through the WiFi connection often time out, but with 3G network connection sometimes very slow, but rarely time out, the connection with the HttpClient post method, the server is TOMCAT7, database Oracle, connection C3P0 connection pool, Does anyone know what it is?The server connection time-out has been

about how Android detects the type of network, the online code is many, but the useful products are not many, some time ago, because do project need to involve specific network type of check, especially distinguish 2G network is for WAP, or net, type, because WAP type, need to configure proxy Internet, based on this, I'll record the process code I've implemented:1. Define constants to identify several network types /**No network*/ Public Static

Android Network judgment tool (APN + WIFI) and androidapn Public class NetWorkHelper {private static String LOG_TAG = "NetWorkHelper"; public static Uri uri = Uri. parse ("content: // telephony/carriers");/*** determine whether a network connection exists */public static boolean isNetworkAvailable (Context context) {ConnectivityManager connectivity = (ConnectivityManager) context. getSystemService (Context.

Android infers whether to connect WiFi and network status inference

Many times it is necessary to determine the current user's network before proceeding with some of the processing logic. But the network type gets this piece, I am using my own mobile phone to debug some problems, here to record. A mobile phone generation, mobile 4G network, get the subtype type value of 17, I checked the Android 5.1 source code, its maximum value is 16. I take the Phantom's mobile 4G test results are as follows: Millet 4, tel

Android logcat Method for viewing non-wifi/usb devices, androidlogcatAndroid: how to view logcat without wifi/usb devices A custom Android device with wifi removed. I need to debug a USB device so that I cannot use usb to output logcat. Because this USB device requires ker

= (Connectivitymanager) context. Getsystemservice (Context.connectivity_service);if (manager! = null) {Networkinfo Networkinfo = Manager. Getnetworkinfo (Connectivitymanager.type_mobile);if (networkinfo! = null networkinfo.isconnected ()) {if (networkinfo.getstate () = = NetworkInfo.State.CONNECTED) {return true;}}}return false;}/*** Open the Network Settings screen*/public static void opensetting (activity activity) {Intent Intent = new Intent ("/");ComponentName cm = new ComponentName ("Com.

Specific steps 1. Click "System Settings" in the Android phone and some of the phones are "set up" click to enter 2. In the mobile phone settings we will see the "WiFi Settings" option as shown below: 3. After entering WiFi settings, open the WLAN option, it will automatically search the surrounding WiFi signal,

In Android, all WiFi operations are performed in android.net. wiFi bag, And the commonly used classes only use a few. For general developers, the commonly used operations are also limited and do not need to be deliberately remembered, when I use it, I can check it now. The following is an example of WiFi in the secrets

Powermanager = (powermanager) getsystemservice (context. power_service );Mwakelock = powermanager. newwakelock (powermanager. partial_wake_lock,"AAAAA ");Mwakelock. setreferencecounted (true );// Create a WiFi lockWifimanager = (wifimanager) getsystemservice (context. wifi_service );Mwifilock = wifimanager. createwifilock ("cbsradioplayer ");Mwifilock. setreferencecounted (true );Mwakelock. Acquire ();// Acquire W