A. Android platform WiFi Basic code path
1. wpa_supplicant Source Section
external/wpa_supplicant_6/
Build library libwpa_client.so and daemon wpa_supplicant
2. WiFi HAL Layer Code
Located in hardware/libhardware_legary/wifi/
3. The JNI part of WiFi
Located in Frameworks/ba
Android WiFi usage record and androidwifi record
Recently, I am working on the development of WiFi for Android. The Connection Tool class refers to the tool class in this article.
Http://www.cnblogs.com/zhuqiang/p/3566686.html
Some problems encountered during development are
Android development can not be without the real machine debugging, the total use of data line Plug and unplug or not convenient and unstable, in fact, the way to achieve WiFi connection to the Android phone.
1. Of course first to open WiFi, mobile phones and computers in th
Original address: http://blog.csdn.net/sinat_35845281/article/details/52674946I've been trying to get a novelty.Recently has been learning to share webcam data through two Android phones via WiFi. It took a long time to get some bosses. Here are a few steps:1. For mobile phone camera development, customize the Surfaceview to define your own camera class. The main
Android mobile phones and computers transmit data based on WiFi. Technically speaking, there are two main solutions:
One is implemented through the FTP protocol, and the Android mobile phone is used as the FTP server during data transmission;
One is implemented through HTTP.
Android wifi connection can receive data, gprs cannot, androidwifi
Android can obtain files on the network in WiFi, but not GPRS.
Cause:Static IP addresses must be used for access.
Example:When downloading files stored in Alibaba Cloud direct-line cloud acceleration, ip a
Android system transplantation and debugging -------) how to add an adb wifi wireless debugging function [developer options]-[Wifi debugging]
First, understand how to set adb wifi wireless debugging function, as shown below.
1. Enable the adb tcp connection port on the mobile phone end
:/$setprop service.adb.tcp.port 5
First of all, the Android code connected to WiFi a few steps : (The following refers to the specific API function self-examination ha, write the time by virtue of the impression of roughly written down)Reprint please specify the source:Fat Tiger : HTTP://BLOG.CSDN.NET/LJPHHJ1. First to turn on the wifi connection switch, mwifimanager.setwifienabled (TRUE)2. Geta
broadcasts several different actions in a specific Wi-Fi peer event:1, wifi_p2p_connection_changed_action:p2p connection status has changed. This is the object with Extra_wifi_p2p_infowifip2pinfo and Extra_network_infonetworkinfo objects Extra_network_infoextra_network_infoextra_ Wifi_p2p_info Extra_wifi_p2p_info.2. The status of WIFI_P2P_STATE_CHANGED_ACTION:P2P has been changed between enabled and disabled. It carries extra_wifi_state either wifi_p2p_state_disabled or wifi_p2p_state_enabledTh
Android-determine whether the connection is successful for the specified wifi, android-wifi
Recently, when printing WifiInfo, I accidentally found a parameter and changed the parameter to check whether the connection was successful. However, this is hidden and I reflected it. The Code is as follows:
// Identify whe
The priority rules for the current Android WiFi auto-connect are as follows:1, the priority value of the range is set to [0,1000000], if beyond this range will reset;2, the most recently connected AP has the highest priority, in the automatic connection will first try to connect it;3, not connected but scan to the AP, according to its signal value of the strength of the order, the stronger the display of th
Recently, I've been trying to get native MAC addresses from the NDK with C + + on Android, but with the IOCTL (SIOCGIFHWADDR), the return value is less than 0, which means that the interface information is not available. At first I thought it was my own missing access rights, so I have been increasing uses-permission, and later found that no matter how this is the case, found that the original Android studi
this file. if your system has/system as read-only use a location like/data/MISC/WiFi/wpa_supplicant.conf and modify wpa_supplicant service in init. RC with new location.
Make sure the paths are correctly created in init. RC:
Mkdir/system/etc/WiFi 0770 WiFiChmod 0770/system/etc/WiFiChmod 0660/system/etc/WiFi/wpa_suppli
frameworks/base/CORE/Java/Android/net.
3. Configure android to support WiFi and add it to boardconfig. mk:
Board_have_wifi: = true
Board_wpa_supplicant_driver: = wext
This will set wpa_build_supplicant to true in external/wpa_supplicant/Android. mk,
Driver_wext.c is used by default.
If you use a custom wpa_supplican
to wifi user/group because wpa_supplicant will want to modify this file. if your system has/system as read-only use a location like/data/MISC/WiFi/wpa_supplicant.conf and modify wpa_supplicant service in init. RCNew location.
Make sure the paths are correctly created in init. RC:
Mkdir/system/etc/WiFi 0770 WiFiChmod 0
wpa_supplicant will want to modify this file. if your system has/system as read-only use a location like/data/MISC/WiFi/wpa_supplicant.conf and modify wpa_supplicant service in init. RCNew location.Make sure the paths are correctly created in init. RC:
Mkdir/system/etc/WiFi 0770 WiFiChmod 0770/system/etc/WiFiChmod 0660/system/etc/
fact, the backstage ran a tcpdump. Of course, the following is a list of display data, if you do not open the hotspot, you can hijack the data, anyway, is to capture your current mobile card on the WiFi traffic.So much to see,!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.So anyone who has installed the app on the phone, on the subway, on the bus, the school cafeteria railw
Disclaimer: This document is purely online data collection, and the copyright is owned by the source author. Please mark it as a reprinted article during reprinting.
Now I have been familiar with the WiFi module of the Android platform for a while. Now I will make some brief summary for future reference and correction.
[WiFi
Board_wpa_supplicant_driver: = wext
This will set wpa_build_supplicant to true in external/wpa_supplicant/Android. mk,
Driver_wext.c is used by default.
If you use a custom wpa_supplicant Driver (such as madwifi), you can set:
Board_wpa_supplicant_driver: = madwifi
4. Enable wpa_supplicant. The default value of wpa_supplicant is msg_info. to output more information, you can modify the following parameters:
1. Set wpa_debug_level = msg_debug in comm
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.