wifi data usage android

wpa_supplicant When there is no problem with the driver module, I will force it on the road, but when it is opened from Settings, the module is thrown into success-"wpa_supplicant startup failed, so you need to find the reason why it cannot be started. I encountered two questions. We can see that the wext protocol was used to start the program. Currently, several Android BSP instances are started with nl80211. The wext Protocol is applica

1. Frequent usage, call Android Api:wifimanagerWifimanager WiFi = (wifimanager) getsystemservice (Context.wifi_service);Wifiinfo info = Wifi.getconnectioninfo ();return info.getmacaddress ();This method needs to ensure that WiFi has been opened before this boot, otherwise it will return null. So you need to start the b

. Interpreting Weather InformationThe JSON information returned is not much to say, the official document provided by the corresponding explanation, is that the number of C1,C2...FA,FB,FC and the like, too impersonal.The main problem encountered here is. Returned the man garbled.。。It is expected that, because it differs from the encoding used by the server side, it is not utf-8.。。。And the official didn't say anything .....No way, I can only bitter force of a coding attempt, with a good number of

checknetworkinfo () shows how to programmatically get the current network status of an Android phone PrivatevoidChecknetworkinfo (){Connectivitymanager Conman=(Connectivitymanager) Getsystemservice (Context.connectivity_service);//Mobile 3G Data NetworkState Mobile=Conman.getnetworkinfo (Connectivitymanager.type_mobile). GetState ();Txt3g.settext (Mobile.tostring ()); Show 3G Network Connection Status//Wi

status of the Android phone private void Checknetworkinfo () { Connectivitymanager conman = (Connectivitymanager) getsystemservice ( Context.connectivity_service); Mobile 3G Data Network state mobile = Conman.getnetworkinfo (Connectivitymanager.type_mobile). GetState (); Txt3g.settext (Mobile.tostring ()); Show 3G network connection status //

First, demand analysisRecently the computer needs to connect WiFi, but found the WiFi password to forget. And the phone has saved the WiFi password, but in the phone's settings screen can not see.Although there are already some apps that can see the WiFi password, the main worry is that the passwords will be uploaded t

On the Android phone, after connecting to Wifi, the password is generally invisible. Is there any way to view these passwords? There are two methods. One is to view the wifi configuration file and the other is to use commands. For the first type, there are already a lot of online tools, namely, root first, and then use tools such as mobile assistant or mobile pho

Normally, when 3G and WiFi are on, Android uses Wi-Fi by default, but it is not possible to have WiFi everywhere in the real world, so the phone will often automatically switch networks.Sometimes, when the phone starts using WiFi, it will automatically switch from WiFi to 3G

Original address: Http://android.xsoftlab.net/training/connect-devices-wirelessly/wifi-direct.html#permissionsWi-Fi peer-to-peer APIs allow programs to communicate directly with nearby devices, and the Android Wi-Fi peer-to-frame is powered by Wi-Fi Direct. Wi-Fi peer technology enables programs to quickly retrieve and connect to nearby devices. Its coverage is larger than the Bluetooth coverage range.This

, depending on your settings.5. How to change back to previous status (via USB connection)SetProp service.adb.tcp.port-1 Stop adbd start adbd3. Directly via the ADB after USB connection is set upThis is the simplest method, but the success rate is not high. Let's take a look at how to achieve:ADB tcpip 5555 #让adbd重新启动, and listen port 5555 ADB connect 192.168.0.101:5555Change back to the original state:ADB usbAttentive friends should have found that the command issued through the ADB is user-le

running in the background, or it will open a adb-server process. All clients communicate with the Adb-server via Port 5037.2) adb daemon (adbd daemon)Daemon, the component runs in the emulator/real Android device as a background process, running commands on the device. Daemon uses a port range of 5554-5585, each emulator/device connected to the PC side, always open such a background process, and allocated it two consecutive ports, such as:Emulator1,

The RE file manager must be installed we need to install a re file manager on the Android phone before we can view the WiFi password. 1. Mobile phone installation re File manager 2. Then we open the phone in the "RE File Manager" below 3. Find/data/misc/wifi in the RE manager as shown in the following figure 4. The

Ubuntu Network Management provides convenience for creating Wifi hotspots. However, because it uses an ad-hoc network, the Wifi created by Ubuntu cannot be used by the Android system. This article is to solve this problem 1. InstallAP-hostpotineffectusudoadd-apt-repositoryppa: nilarimogard/webupd8sudoapt-getupdatesudoapt-getins Ubuntu Network Management provides

1. Get the currently connected WiFi informationWifimanager Wifi_service = (wifimanager) getsystemservice (Wifi_service);Wifiinfo wifiinfo = Wifi_service.getconnectioninfo ();Where Wifiinfo has the following methods:Wifiinfo.getbssid ();Wifiinfo.getssid ();Wifiinfo.getipaddress (); Gets the IP address.Wifiinfo.getmacaddress (); Gets the MAC address.Wifiinfo.getnetworkid (); Gets the network ID.Wifiinfo.getlinkspeed (); Gets the connection speed, which

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 mo

Analysis:Originally Google official in order to give users more data protection, starting from this 6.0 version, Android removed via WiFi and Bluetooth API to the application of programmable access to the local hardware identifier. Both the wifiinfo.getmacaddress () and Bluetoothadapter.getaddress () methods will now return 02:00:00:00:00:00▲ Solution:There is a

Get mobile phone Model: Android.os.Build.MODEL Get the phone's SDK version number: Android.os.Build.VERSION.SDK Get the phone's current network type code as follows: This is a tool class that you can save for later use. Package com.iqtogether.qxueyou.support.util; Import Android.content.Context; Import Android.net.ConnectivityManager; Import Android.net.NetworkInfo; Import Android.telephony.TelephonyManager; /** * Gets the network connection tool class * Created by Chengguo on 2016/3

Some time ago, there was a need in the company to control the user's network connection mode. At that time, wifi was well controlled, but the gprs mobile data seemed to have no APIs. When I checked the results, there was really no api for you to control, so I had to find a solution myself. At that time, I thought that there was such a switch in the settings. Then, the source code of settings is opened. As a

Because of the need to always get the network problem, today looked at WiFi operation, after finishing, made a class, may be incomplete, but the personal feeling has been fully able to meet the needs, of course, the method inside may be wrong or incomplete, this class I did not carry out a complete test, Only some of these methods have been tested. In fact, the operation of WiFi is also very simple, mainly

Determine whether the network type is WiFi, 3G, or 2G network, for different Network for different processing, now the judgment method is collated to everyone, for reference Note: The data used below move 2G, Unicom 2G, Unicom 3g,wifi I have already tested, temporarily hand There is no telecom card, so there is no authentication, a colleague with a telecom phone