android wifi printing

Learning Journey Based on Android NDK ----- jni log PrintingAll programs are called.The following describes how to use the log printing method on the JNI layer, similar to the log printing method provided by the Android sdk.1. Android Application Layer MainActivity. javaMain

This article was reproduced from: http://www.jb51.net/article/128398.htmThis article mainly describes the Android 6.0 get WiFi MAC address for 02:00:00:00:00:00 solution, very good, with reference value, need friends can refer to the nextObjective:The previous project was older, the mobile version was relatively low, and it was developed using eclipse. Need to get a mobile

screen　　Get system Current Auto-spin screen settingsContentresolver Resolver = context. Contextresolver ();Boolean on = Settings.System.getInt (Context.getcontresolver (), Settings.System.ACCELEROMETER_ROTATION) ==1? True:false;　　Set up automatic spin screenContentresolver Resolver = context. Contextresolver ();Uri uri = Settings.System.getUriFor ("accelerometer_rotation");Settings.System.putInt (resolver, "Accelerometer_rotation", Boolean? 1:0);Resolver.notifychange (Uri,null);Mute modeGet sil

If you are still using the original data line when uploading files to your mobile phone, or using Bluetooth for transmission, the data line transmission is not very convenient because it is affected by the line and interface. Data cable connection is used for a long time, which can easily damage the data port of the mobile phone. Bluetooth transmission is relatively troublesome. A computer must have a bluetooth module and install third-party software on the computer to synchronize with the mobil

Info.getsubtype () values is as follows: * NETWORK_TYPE_CDMA network type is CDMA * Network_type_edge network type is EDGE * Network_type_evdo_0 network type is EVDO0 * Network_type_evdo_a network type is EVDOA * Network_type_gprs network type is GPRS * NETWORK_TYPE_HSDPA network type is HSDPA * Network_type_hspa network type is HSPA * Network_type_hsupa network type is HSUPA * Network_type_umts network type is UMTS Unicom 3G for UMTS or HSDPA, mobile and Unicom 2G for GPRS or edge, telecommu

Turn: http://blog.csdn.net/liuying_0408/article/details/7446631 As mentioned above, the WiFi startup process, of course, will then scan the hotspot (AP), then display the scanned AP, configure the AP (fill in the IP address and other information) connect to the AP, obtain the IP address, and finally connect to the Internet! I. Scanning Hotspots (AP) After WiFi is successfully started above: // success!Setw

I have been learning about android wifi for a week. Today, I will post my daily learning achievements for future reference, from the framework to the adaptation layer of wpa_supplicant (wifi. c) There are many posts on the Internet, and they are not complicated. The framework part should be noted in the wifiService and wifiMoniter sections, one is the CMD of the

Original: http://blog.csdn.net/johnwcheung/article/details/71576833Android under the device debugging, if the device provides a driver, according to the manufacturer's driver debugging can be, the device does not provide the driver, only in accordance with the common method of debugging.For Smart POS, cash registers, and other printing devices, how can the print function be implemented if the vendor does not provide a

1. HAL LayerHeader file:#include corresponding level printing methodVERBOSELOGV ()DEBUGlogd ()INFOLogi ()WARNLOGW ()ERRORLOGE ()Method:LOGD ("%d,%s", int, char*)2. JNI LayerHeader file:#include corresponding level printing methodVERBOSELOGV ()DEBUGlogd ()INFOLogi ()WARNLOGW ()ERRORLOGE ()Method:LOGD ("%d,%s", int, char*)3. Framework LayerImport Android.util.Slog;corresponding level

Note: If you do not have root permission, you can try it, in general, you need root permission to connect successfully. 1. Make sure your PC and Android phone are connected to WiFi and under the same network segment;2. Turn on USB debugging and connect the Android device to the development PC with USB;3. Go to the Platform-tools directory of your

The first thing to emphasize is that WiFi can only be tested on a real machine! 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

android Get WiFi extranet IP method Get extranet ip publicstaticstringgetnetip () { URLinfoUrl=null; inputstreaminstream= null; try{ //http://iframe.ip138.com/ic.asp infourl=newurl ("http://city.ip138.com/city0.asp"); infourl=newurl ("http://ip38.com"); urlconnectionconnection=infourl.openconnection (); HttpURLConnectionhttpConnection= ( HttpURLConnection) connection; int Responsecode=httPconnec

; Import Android.net.wifi.WifiManager; Import Android.net.wifi.wifimanager.wifilock;public class Wifimanageclass {private Wifimanager wifimanager;//Declaration Admin Object P Rivate wifiinfo wifiinfo;//wifi information private list Of course, in the operation of WiFi also need the appropriate permissions, personally feel this is the use of the most permissions, of course, the operation of

Android detection system WiFi is connected? If there is no connection, display the prompt box, prompt to set, when the click Set to enter the system WiFi interface 1 seconds, the prompt box disappears automatically.Code:public Boolean iswificonnected (context context) {Connectivitymanager Connectivitymanager = (Connectivitymanager) Context.getsystemservice (Conte

Android Development Get network status collation:1 Packagecom.gzcivil.utils;2 3 ImportAndroid.content.Context;4 ImportAndroid.net.ConnectivityManager;5 ImportAndroid.net.NetworkInfo;6 ImportAndroid.telephony.TelephonyManager;7 Importandroid.text.TextUtils;8 9 Public classNetworkutils {Ten One /**No network*/ A Public Static Final intNetworktype_invalid = 0; - /**WAP Network*/ - Public Static Final intNetworktype_wap = 1; the /

This article describes how to get the status of your Android device WiFi connection!Add access permissions (in the Androidmanifest.xml file)Java code (mainactivity.java file)Package Com.example.androidtest;import Android.net.connectivitymanager;import android.net.NetworkInfo.State; Import Android.os.bundle;import android.app.activity;import Android.content.context;import Android.util.Log;import Android.view