kandi X-RAY | WiFiDirectTestApp Summary
kandi X-RAY | WiFiDirectTestApp Summary
Android Wi-Fi DirectのAPIを個別に実行し、Wi-Fi Directの動きを見るアプリ。.
Top functions reviewed by kandi - BETA
WiFiDirectTestApp Key Features
WiFiDirectTestApp Examples and Code Snippets
Trending Discussions on Wifi
Even with all the permissions granted the startScan() function still returns false. So my question is: is there a way to scan access points on android 29 or higher?...
ANSWERAnswered 2022-Apr-05 at 08:31
The problem was in asking the user for permission. My working code
-And for asking user for permissions I used EasyPermissions:
I need to develop a feature that is required checking Wi-Fi settings state 'ON' or 'OFF' even if not connected to a WiFi network on Android! I need to display a pop up!...
ANSWERAnswered 2022-Apr-01 at 19:12
I think you should to use
I've got a router Mikrotik hAP AC2. Recently I've updated RouterOS to version 7.1.3 and have found that 5GHz access point has issues.
My notebook sometimes disconnects from 5GHz wlan, and one of smartphones in my family doesn't connect to 5GHz at all.
Here is the plot of wifi signal strength, that I've collected using my notebook located in direct visibility of the router at the distance of about 5-6m.
Cyan line shows 2.4GHz signal and red line shows 5GHz signal. Numbers are -42dbm for 2.4GHz and -68dbm for 5GHz.
My impression is that generally this is not normal. I repeat, there were no obstacles between the notebook and the router, only thin air.
I've tried to reset configuration for 5GHz wlan, change its region, but without success.
How can I fix this?
Here are current settings:...
ANSWERAnswered 2022-Mar-24 at 12:30
5GHz Wifi is always lower strength than 2.4GHz, it's physics. 5GHz originally improved performance due to moving away from the then congested 2.4GHz band, however, now 5GHz is just as common so despite having a wider range of frequencies it still ends up congested.
5GHz allows for higher throughput while having the disadvantage of being attenuated quicker due to the higher frequency
2.4GHz has a lower data throughput but isn't attenuated as easily.
I'm working on a Wifi auto connect feature and I am shocked how broken that API is.
I'm using now 5 different APIs and I still don't get it in a way the user would expect it.
I have a setting to enable wifi auto connection on Android 10+ I'll try this:
- Check if I hold the
ACCESS_WIFI_STATEpermission with: ...
ANSWERAnswered 2022-Mar-22 at 11:19
Well just a half answer, but it might help anyway. Here is how I get the current SSID of the user (you need to hold the location permission):
I need to get the RSSI of the networks and they MAC addresss to a IPS (indoor position system) program. I was able to get ssid, signal strength and security using the sample code, but not mac addresses. I tryed to use this, but itsn't working:...
ANSWERAnswered 2021-Oct-06 at 12:02
Maybe the Arduino framework doesn't give this information up easily, but the underlying ESP IDF framework certainly does. The AP-s MAC is called BSSID. Adapting this example scan.c:
I think there's a way to generate a wifi qr with pillow and qrcode library in python. I had searched in the internet and there's no information.
I will apreciate your help. Thank's
ANSWERAnswered 2022-Feb-18 at 02:16
Yes there is. QR codes are just images that are easy for a computer to decode via taking a picture into something useful.
QR codes are just text/strings encoded into an image.
Python has a library called qrcode.
Mobile phone support a specific format of text that tells it to try and connect to a wifi network. This wiki shows an example of what that connection string would look like.
So here is the steps.
- Create a wifi connection string that mobile phones support.
- Pass that string into qrcode to generate a PIL image.
- Do what you want with that PIL image.
When I use Wireshark to capture traffics with my wlan card with monitor mode already set, it only displays 802.11 frames. However, if I use Wireshark with managed mode wlan(promiscuous mode), it certainly displays 802.3 frames.
I searched for some related information and found out that 'network bridging' allows devices to convert 802.11 wireless packets to 802.3 packets. In case of packet capturing, pcap allows conversion.
(link: How to real time convert wireless packet(802.11) to Ethernet packet(802.3) in windows?)
So, Why is 802.11 to 802.3 frame conversion impossible when using monitor mode(not associated to the wireless network)?
Below are pictures of the situation. Thank you in advance.
ANSWERAnswered 2022-Jan-31 at 00:39
For one thing, not all 802.11 packets have Ethernet equivalents; only data packets do. In monitor mode, in addition to data packets, control and management packets can be captured - you're seeing those types of packets in your monitor-mode capture.
For another thing, when capturing in monitor mode on a "protected" network (WEP, WPA), data packets are encrypted (to protect them from being sniffed), and can't be converted to Ethernet packets until they're decrypted. Under some circumstances, Wireshark can decrypt them, but Wireshark doesn't do any conversion from 802.11 to 802.3 in any circumstances - when not capturing in monitor mode, the 802.11 adapter converts data packets to 802.3 packets after decrypting them, and doesn't show non-data packets to the host.
I am working to connect 2 linux machines, each with this USB Dongle: https://www.tp-link.com/us/home-networking/usb-adapter/archer-t2u-nano/, to an ad-hoc WiFi network managed by B.A.T.M.A.N ( batman-adv ).
When run, this scripts show that both devices are joined to the same ad-hoc/IBSS network.
I statically assigned ip addresses and routes to both 'bat0' devices. However, I cannot ping or otherwise use the connection between the two devices.
What am I doing wrong and how can I use the mesh network in Linux between the connected client and server? Thanks.
My 'server' node is configured with this script:...
ANSWERAnswered 2022-Jan-24 at 00:31
The answer really is that you need a WiFi radio that actually correclty implements Ad-Hoc/IBSS networking in the driver stack.
I am transferring photo peer to peer. All things works fine but I am not able to get the photo(file) transfer speed i.g internet speed. Like MB the file is transferred. Second I want to fetch the size of that file.
We are passing photo in data format using
Due to privacy I cannot add the project code here but I will share the refrence github project that I followed. In project I am passing string and In my case its Photo. All things are same.
I checked in Stackoverflow but not found any accurate answer!
Reference Project Link: https://github.com/YogeshPateliOS/MultipeerConnectivity-.git
ANSWERAnswered 2022-Jan-13 at 13:19
TLDR: If you do not want to read the long explanation and get straight to the code, all the ideas below are brought together and can be tested by downloading my public repository which has comments to explain all of this.
So here are my suggestions on how you can achieve this
After reviewing your code, I see that you are using the following function to send data
I've searched for some information about frame structure in wifi and ethernet in the Data Link layer and found out that the two frames look quite different. I am wondering if there is some method in the router that converts wifi frame to ethernet frame in a such network where wireless network is connected to wired network, like WLAN. Since I'm really new to this field, I may have some misunderstanding issues. Thank you....
ANSWERAnswered 2022-Jan-01 at 13:40
Connecting different or similar networks on the data link layer (L2) is done by a network bridge - you extract relevant data from an ingress frame (esp. source and destination MAC addresses), create a new frame for egress and copy the relevant data into it.
A bridge also examines each frame's source MAC address to learn where each node is located, so it only copies a frame to the other side when its destination is located there.
However, a router works on the network layer (L3): it forwards by IP destination address between IP networks/subnets. It uses data link layer (L2) encapsulation for reaching the next hop but doesn't convert anything. (It removes the encapsulating frame from a received packet, decides where to forward the packet, and then creates a new frame for that packet.)
You might be referring to a consumer-grade Wi-Fi router which effectively contains a NAT router, an Ethernet switch, a wireless access point (mostly bridged), DHCP and DNS servers, etc, blurring the distinction between all those functions.
No vulnerabilities reported
You can use WiFiDirectTestApp like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the WiFiDirectTestApp component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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