ChatGPT解决这个技术问题 Extra ChatGPT

How can I access my localhost from my Android device?

I'm able to access my laptop web server using the Android emulator, I'm using 10.0.2.2:portno works well.

But when I connect my real Android phone, the phone browser can't connect to the same web server on my laptop. The phone is connected to the laptop using a USB cable. If I run the adb devices command, I can see my phone.

What am I missing?

See documentation here : developer.android.com/tools/devices/…
Turn off the firewall while testing your webpage or add your ip to the trusted networks in the firewall settings.
souper ez with ngrok

g
geneowak

USB doesn't provide network to mobile device.

If both your desktop and phone are connected to the same WiFi (or any other local network), then use your desktop IP address assigned by the router (not localhost and not 127.0.0.1).

To find out the IP address of your desktop:

type into the command line ipconfig (Windows) or ifconfig (Unix) on Linux the one-liner ifconfig | grep "inet " | grep -v 127.0.0.1 will yield only the important stuff there's a bunch of suggestions on how to have a similar output on Windows

on Linux the one-liner ifconfig | grep "inet " | grep -v 127.0.0.1 will yield only the important stuff

there's a bunch of suggestions on how to have a similar output on Windows

there's going to be a bunch of IP's

try all of them (except the forementioned localhost and 127.0.0.1)

If your phone is connected to the mobile network, then things are going to be harder.

Either go hardcore:

first find out your router external IP address (https://www.google.de/search?q=myip)

then, on the router, forward some port to :

finally use the external IP address and forwarded port

Otherwise use something like xip.io or ngrok.

NOTE: The ifconfig command has been deprecated and thus missing by default on Debian Linux, starting from Debian stretch. The new and recommended alternative for examining a network configuration on Debian Linux is ip command. For example to use ip command to display a network configuration run the following:

ip address

The above ip command can be abbreviated to:

ip a

If you still prefer to use ifconfig as part of your daily sys admin routine, you can easily install it as part of the net-tools package.

apt-get install net-tools

Reference is here


I don't understand this problem solution. Can you help me about how my telephone can access my server? I hope you flesh out this solution to me. Thanks.
Read my comment below.. You must also have internet access permission.
@simo go to your router homepage, 10.0.0.1 for XFinity, usually 192.168.1.1 though and log in, look for Connected Devices or Local IPs , find your computer and bam. Mine was 10.0.0.#, then just add [10.0.0.#:(port)/Server/Servlet] or whatever
This should not be the accepted answer for this question. Port forwarding in Chrome devtools and adb reverse works perfectly fine with a USB cable.
In ubuntu, you have to disable the firewall as well, type "sudo ufw disable" for it
E
Edwin Pratt

It is actually quite simple.

Turn on WiFi Hotspot of your Android phone/router and connect your Laptop to your phone

Start your server at localhost (I am using WAMP server for Windows)

Now open the command prompt and enter

ipconfig

Once you've done that, you will see something like the following:

Wireless LAN adapter Wireless Network Connection:
  Connection-specific DNS Suffix  . :
  Link-local IPv6 Address . . . . . : fe80::80bc:e378:19ab:e448%11
  IPv4 Address. . . . . . . . . . . : 192.168.43.76
  Subnet Mask . . . . . . . . . . . : 255.255.255.0
  Default Gateway . . . . . . . . . : 192.168.43.1

Copy the IPv4 Address (in this case, it is 192.168.43.76)

In your mobile browser, simply paste the IPv4 Address

Note: Please set your network as "Home Network". Setting the network as Home Network means that you are allowing your PC to share stuff with other devices on the same network.

If you are using Windows 10, this can be done with the following:

Open Settings

Go to Network & Internet

Select WiFi in the left menu

Tap on the name of the connected WiFi

Set the Network Profile of the network to be Private

If you are having an issue, it is most likely to do with Windows Firewall.

Open Control Panel

Go to Windows Defender Firewall

Tap on Allow an app or feature through Windows Defender Firewall

Check whether the app is enabled for Private networks (there should be a tick)

If it is not enabled, tap Change settings and tick the checkbox under Private for the app


hm did this but the browser seems to take forever to load then it gives me an oops? am I doing something wrong? And what do you mean by home network
Please remember to turn off the firewall in computer aswell.
*Home Network it is (: Home network means your computer i allowed to share stuff with the devices of the same network.
"Tap on Allow an app or feature through Windows Defender Firewall Check whether the app is enabled for Private networks (there should be a tick)" What app do you mean?
my problem was that my network wasn't private, thank you so much
w
weibeld

With the simple solution (just access laptop_ip_addr:port from mobile device, when mobile and laptop are on the same WiFi), I get a ERR_CONNECTION_REFUSED error. That is, my MacBook seems to refuse the connection attempt from my mobile.

ADB Reverse Socket (Android only)

This solution works for me (tested with a MacBook):

Connect Android mobile device with USB cable to laptop Enable USB Debugging on mobile device On laptop, run adb reverse tcp:4000 tcp:4000 Use your custom port number instead of 4000 Now, on the mobile device, you can navigate to http://localhost:4000/, and it will actually connect to the laptop, not the mobile device

See instructions here.

The downside is that this works only with a single mobile device at a time. If you want access with another mobile device, you have to first disconnect the first one (disable USB Debugging), connect the new one (enable USB Debugging), and run adb reverse tcp:4000 tcp:4000 again.

EDIT: this solution has been reported to also work with Windows.

ngrok (works with all devices)

Another solution that should always work is ngrok (as mentioned in other answers). It works over the Internet, and not the local network.

It's extremely easy to use:

brew cask install ngrok
ngrok http 4000

This outputs, among some other information, a line like

Forwarding                    http://4cc5ac02.ngrok.io -> localhost:4000

Now, you can navigate to http://4cc5ac02.ngrok.io on any device that is connected to the Internet, and this URL redirects to localhost:4000 of your laptop.

Note that as long as the ngrok command is running (until you hit Ctrl-C), your project is publicly served. Everybody who has the URL can see it.


you saved my life dude
Thank you. You helped me a lot. I used adb reverse just replacing 4000 port to 3000 and it worked as i needed.
ngrok was what worked for me in linux, super easy, but every time you it gives you a different url, which expires every 2 hours
ngrok worked for me, but I was having trouble with the brew install, following the steps here once I registered for ngrok worked for me: dashboard.ngrok.com/get-started/setup
I tried by reversing the port but it worked only once only and stoped working on the next launch so I used the ngrok to achieve this and believe me, it is awesome and working fine.
E
Edwin Pratt

Mac OS X users

I achieved this by enabling remote management:

Ensure that your phone and laptop are connected to the same WiFi network

On Mac, go to System preferences/sharing

Enable remote management

You will see a message similar to this:

Other users can manage your computer using the address some.url.com

On your Android device, you should now be able to go to some.url.com, which delegates to localhost on your Mac. You can also use ifconfig to get the IP address of your Mac.

Portable solution with ngrok (any OS with Node.js)

If you don't mind exposing your project with a temporary domain you can use ngrok. Lets say I have an app that runs on localhost:9460 I can simply write

npm install ngrok -g

ngrok http 9460

This will give me:

Session Status                online
Update                        update available (version 2.2.8, Ctrl-U to update)
Version                       2.2.3
Region                        United States (us)
Web Interface                 http://127.0.0.1:4040
Forwarding                    http://f7c23d14.ngrok.io -> localhost:9460
Forwarding                    https://f7c23d14.ngrok.io -> localhost:9460

Connections                   ttl     opn     rt1     rt5     p50     p90
                              0       0       0.00    0.00    0.00    0.00

I can now reach https://f7c23d14.ngrok.io as a way to remotely view localhost. This is great to share design work or progress with clients.

Alternate solution with nginx proxy pass

If you are running something like this through nginx proxy_pass it will require a bit more tweaking - this is a hacky approach, but it works for me and I am open to suggestions on improving it:

Enable remote management (as mentioned above)

Temporarily set the server to listen on port 81 as opposed to 80

Type in the following command:

sudo nginx -s reload

Visit http://youripaddress:81

server {
  listen 80;
  listen 81;   # <-------- add this to expose the app on a unique port
  server_name  ~^(local|local\.m).example.com$;
  # ...
}

Reload and visit http://youripaddress:81


If you're using this 'remote management' setup another helpful thing to know is if you have a lot of aliased servers running in mamp, your mobile device (connected via usb) will only give you access to the first that is defined in httpd-vhosts.conf so just move your current project to the top of the list
I enabled remote management on my mac as you said, and I was given another set of checkboxes for various ways that my computer could be remotely managed. I left them all unchecked except Observe, and it worked fine for me. My web server was running on my mac on localhost port 5555, and I saw "other users can manage your computer using the address 10.0.0.12," so in my phone's browser I typed 10.0.0.12:5555 and saw my web page.
It worked when used the IP 192.168.0.101 but the hostname didn't work.
On a Mac, just ALT+click Wi-Fi in your menu bar to get your IP address.
I disabled my firewall but still it's showing connection refused, any idea how to get it working?
S
Saman

This solution is usable when your mobile device and computer is not in same network:

https://i.stack.imgur.com/bBpUz.jpg

Click on the port fowading button, and set a random port say 3000 to the port which your laptop uses say 8080.

https://i.stack.imgur.com/suqpB.png

now use localhost:3000 from device to access the localhost:8080(or_whatever_ip:portno) in the laptop. You can check it in the mobile browser. Try localhost:3000 in the mobile browser. Make sure to check the "Enable port forwarding" checkbox in the "Port forwarding settings" window


I love you dude! You need write a tutorial with these steps!
Very nice solution. This should, be the accepted answer
I can't really express how much you have just saved my soul with this solution
Nice!! I'd like also to add some pro tips on both ends (computer & android): 1.Disable the firewall. 2 Check if there isn't some anti-virus blocking traffic
my local server url is m.local.sese.com . How do I acess it?
S
Sanjay Kumar

On Windows PC You may not need to do anything else than finding out your IPv4 Address using "ipconfig" command.

Step 1 : Connect your phone to PC using USB cable.

Step 2 : Use command 'ipconfig' to find out your IPv4 Address (External IP of the Router) e.g 192.168.1.5 in my case.

Step 3: Just access "192.168.1.5:8080" from your phone browser. It works !

Other Env Details : Windows 7, Google Nexus 4 (4.2.2), Tomcat Server, Grails Application.

You should also make sure that you have the permission to access internet in AndroidManifest file :

<uses-permission android:name="android.permission.INTERNET"/>

I tried but it keeps saying that "Connection refused". Why? :( Does the port have to be 8080? Currently, my web service is running on another port.
I was using tomcat at port 8080. You can append your own server port in place of 8080.
and what about a webapp ? not a native app
I still don't have access to my localhost
I tried it but it says java.io.FileNotFoundException: http://192.168.8.65:8000/app/web/users/
P
Pang

I found a quick solution to this problem. Try this link. It should help you fix the problem.

I only changed one thing, where the tutorial states you change '127.0.0.1' to 'All', change it to the IP address your server is running on instead.

After that, you should be able to connect to your localhost.

Below is a (proofread) copy of the information from the linked page:

Step 1

Install the Wamp server (or any other you prefer).

This is one of the best servers I know to set up a local server. If you have installed Apache or any other server, ignore this step.

Download and install Wamp Server from here.

Step 2

Add a new rule for port 80 in Windows Firewall.

Open the Control Panel and select Windows Firewall. Select Advanced settings from the left panel of the Windows Firewall setting page. Select Inbound Rules from the left panel, then select New Rule. Select Port and click Next. Select the “Specific local ports” radio button and enter 80 as the port value. Keep Allow the connection unchanged and move to the next step. Keep Profile options unchanged and click Next. Give some nice name to your new rule and click Finish.

This will enable port 80 access on local network IP.

Step 3

Edit the httpd.conf file of the Wamp server to fix the 403 error.

We need to edit this file. Otherwise, we will get the 403 forbidden error when we access the localhost through a local network IP.

Click on the Wamp server tray icon. Open Apache server sub menu. Select httpd.conf. Find this section of configuration in the httpd.conf file: Directory “c:/wamp/www/” # # Possible values for the Options directive are “None”, “All”, # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that “MultiViews” must be named *explicitly* — “Options All” # doesn’t give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be “All”, “None”, or any combination of the keywords: # Options FileInfo AuthConfig Limit # AllowOverride all # # Controls who can get stuff from this server. # # onlineoffline tag – don’t remove Order Deny,Allow Deny from all Allow from 127.0.0.1

Find and replace ‘127.0.0.1’ with ‘All’, save the file, and restart your Wamp server.

Step 4

Find your local network IP.

Open the command prompt. Type and enter the ipconfig command. In my case, my local area network address is 10.0.0.2.

This is the IP which you need to access your localhost on your Android phone over wifi. To test if it is working, type this IP address in your desktop browser where your localhost server is installed. The browser should display your localhost page successfully. This will assure that this local network IP is now successfully accessible on your Android phone.

I hope this tutorial will help you to access your localhost over wifi.


Thanks! this worked so easy. just one thing; I left the httpd.conf as # onlineoffline tag - don't remove Order Allow,Deny Allow from all
tutorial is windows based? wut?
link is not working anymore so the whole answer is useless now as the information has not been added to SO on how to do it.
For Wamp server v3, I was getting a forbidden error. Check out this answer stackoverflow.com/questions/23382627/… on how to amend the vhosts info (don't edit the httpd.conf file as shown above)
This is a really old version of Wamp it looks like, the config files are quite a bit more complicated now. Especially if you use the VHosts feature. I can't figure it out, too many layers of overrrides.
A
Akhil Jain

There is however a far better solution. You can access your host machine with the IP address "10.0.2.2". This has been designed in this way by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "http://10.0.2.2:8080".


tht's true, trick is specify local ip address of your machine and access it via a wireless router connected between your android device and your machine aka system
Great point, I was looking exactly for this, to communicate emulator with localhost. Thanks!!
J
Jason

As this is an old question, there is a new way to do this that is really really simple. Download the ADB Chrome Extension and then follow these instructions:

https://developers.google.com/chrome-developer-tools/docs/remote-debugging


There is no need to download ADB any more it is deprecated, but go to developers.google.com/chrome-developer-tools/docs/… and follow the instructions. Note: I had to forward port 8443 to localhost:8443
does this only work for url calls from Chrome on the device or is it supposed to work from within my app too?
This put me on the right track - an more recent answer about Chrome Dev Tools can be found here: Android Chrome Reverse Port Forwarding
I got stuck because I didn't have google chrome installed on my device. Doh!
D
Daniel

"Port forwarding on Chrome for Android makes it easy to test your development site on mobile. It works by creating a listening TCP port on your mobile device that maps to a particular TCP port on your development machine. Traffic between these ports travels through USB, so the connection doesn't depend on your network configuration."

More details here: https://developer.chrome.com/devtools/docs/remote-debugging#port-forwarding


Y
Youssef Subehi

Run CMD as administrator

and on CMD screen type ipconfig and the screen will appear with text

https://i.stack.imgur.com/hhIGv.png

and you can access your localhost using this ip you have to be connected to same network as your pc connected to


just switch off the firewall
K
KJ Sudarshan

Solution for Windows:

You are not able to view your website, mainly because your firewall ( default OS firewall or Antivirus firewall ) is preventing incoming connections.

On Windows Firewall:

To allow incoming connections on specific ports, go to:

Control Panel > Windows Defender Firewall > Advanced Settings > Right Click Inbound Rules > Add New Rule. Then : Select "Port" radio button. Enter the specific port / range you on which you want to enable incoming connections ( the port on which your server is running ) Select "Allow the connection" radio button. Click Next ( unless you want to change the defaults ) Give your rule a name and click Finish.

Note:

If you are using an Antivirus having a firewall, then the above steps will not work since the Antivirus would have disabled Windows firewall and instead runs its own firewall.

In that case, depending on the Antivirus program, go to your Antivirus's Firewall settings and open the port.


C
Community

You may have your web server listening on your loopback interface and not on your network interface. Major signs of this are:

Hits on 127.0.0.1 and localhost (from localhost or Android emulator) work

Hits on 192.168.xxx.xxx do not work, whether from localhost, LAN, or WAN

I talk more about diagnosing this and fixing this in an answer here.


P
Peter

Try going to this file: C:\wamp\bin\apache\Apache2.2.11\conf\httpd.conf

#   onlineoffline tag - don't remove
    Order Deny,Allow
    Allow from all // change it Deny
    Allow from 127.0.0.1

And change 10.0.2.2 to your IP address.


sorry change to allow form all if it is "Deny "
I'm using XAMPP and this video gave me the answer to get it working: youtube.com/watch?v=YrA_yN3gySs
N
Naveen T P

Use this in your ubuntu/Macbook to get the ip address of your system. Your mobile and system should be in the same network

ip addr | grep inet This will give you an ip address which looks like 192.168.168.46. Use this in your smartphone.

Hope this helps.


u
user3078359

I used this process:

Install Fiddler on the PC

Set up PC and Android device following these excellent instructions

Simply go to the browser on the Android device and type in http://ipv4.fiddler to access the localhost

Note that this process requires you to change the WiFi settings on the Android device at the start and end of every session. I found this less painful then rooting my Android device.


M
Maxwell

ngrok lets you put your localhost onto a temporary server and is very simple to set up. I've provided some steps here that can be found in the link:

Download the ngrok zip from the link above Open the zip Run your server locally and take note of the port number In the terminal, go to the folder where ngrok lives and type ngrok http [port number]

You'll see a little dashboard in your terminal with an address pointing to your localhost. Point your app to that address and build to your device.


This is only useful for accessing the server externally. You can just use the local ip address of the server.
i
iamkdblue

finally done in Ubuntu , i am running nodejs server on localhost:8080

1) open terminal type ifconfig you will get ip something like this : inet addr:192.168.43.17

2) now simply put url address like this : "192.168.43.17:8080" (8080 port coming from localhost port number) ex : "192.168.43.17:8080/fetch"


this only works for me when connected to same network. I need something that works without internet
f
fmw42

The easier way to default localhost is to use http://localhost:port. This works in a laptop and Android as well.

If it does not work, then in android set the default IP of your phone to 127.0.0.1:port :)

Open terminal and type :-

 hostname -i
 #127.0.0.1
 hostname -I
 #198.168.*.*

O
Omar Khaium Chowdhury

If you are using a real device and still facing the problem, follow these steps as these steps help me to solve the issue:

Make sure both the mobile device and the laptop are on the same WiFi network. verify your targeted URL has a port number, something like this:https://localhost:44301 run this command on the Android Studio terminal, adb reverse tcp:44301 tcp:44301 replace 44301 with your port number

Hopefully, you will be able to run without any issue.

Happy codding

thank you very much for that, works like a charm adb reverse tcp:<myport> tcp:<myport>
Will it work for macbook with vpn connected?
give it a go, if it doesn't work, let me know.
F
Fred

A solution to connect my mobile device to my wamp server based on my laptop:

First, wifi is not a router. So to connect my mobile device to my wamp server based on localhost on my laptop, I need a router. I have downloaded and installed a free virtual router: https://virtualrouter.codeplex.com/

Configuring it is really simple:

right click on virtual router icon in System Tray click on Configure virtual router fill a password if your internet connection is in ethernet, choose Shared connection : Ethernet Then set wifi on on your laptop and device On your device connect to the virtual router network name

Then you can connect to your laptop via your device by launching a browser and fill the IPV4 address of your laptop (to find it on windows, type in cmd : ipconfig, and find ipv4 address)

You should see your wamp server home page.


m
mikeym

Was running into this problem using several different localhost servers. Finally got my app up and running on the phone in seconds just by using the Python simple server. It only takes a few seconds so is worth a try before getting into any more complicated solutions. First, make sure you have Python installed. cmd+r and type python for Windows or $ python --version in mac terminal.

Next:

cd <your project root>

$ python -m SimpleHTTPServer 8000

Then just find the address of your host machine on the network, I used System Preferences/Sharing on mac to find it. Tap that into your Android device and should load your index.html and you should be good.

If not then the problem is something else and you may want to look into some of the other suggested solutions. Good luck!

* EDIT *

Another quick solution to try if you're using Chrome is the Web Server for Chrome extension. I found it a quick and super easy way to get access to localhost on my phone. Just make sure to check Accessible to local network under the Options and it should work on your cell without any problem.

https://i.stack.imgur.com/8rOPW.png


Will it work for other server side languages than python?
H
HostMyBus

This is what worked for me, I added another line after the 127.0.0.1 ip to specify the exact local network ip address (not the public ip address) of the device I wanted to use. In my case my Samsung Galaxy S3

As suggested by Bangptit edit the httpd.conf file (x being the version numbers): C:\wamp\bin\apache\Apache2.x.x\conf\httpd.conf

Search for the onlineoffline tag and add the ip of your phone (I found my phones ip address in my routers configuration pages):

onlineoffline tag - don't remove

 Order Deny,Allow
 Deny from all
 Allow from 127.0.0.1

my phones ip in the line below

 Allow from 192.168.1.65 
 Allow from ::1
 Allow from localhost

One could extend this to include an entire sub domain too for e.g. 192.168.1.0/24 etc


u
user8246589

First of all connect your phone and computer to common wifi.

Then, open command prompt using run as administrator

Give ipconfig command

Which shows wireless lan ip

Use ip:port of your server to access in phone


r
realpac

EASIEST way (this worked flawlessly for me) is to locally host your site at 0.0.0.0:<port_no> and to access it using mobile devices, use <local_ipv4_address>:<port_no>/<path> in browser.

To know your local ipv4 address, just type ipconfig in cmd

ANY device connected to the SAME network can access this url.


S
Shahzad Ansari

Ngrok is the best solution. If you're developing PHP then I recommend installing Laravel Valet, It has MacOS and Linux versions, then you may use valet share command. If you're developing any frontend tech and need to share a port like 3000 then use ngrok directly ngrok http 3000

Xampp & ngrok

You can also use ngrok with Xampp in Windows. You can use following process. It's quite easy and simple.

Sign up for a FREE account on ngrok Download the ngrok file from Download section and Open it

Note the port your Apache server is running on. It's 80 in my case

https://i.stack.imgur.com/ONQXF.png

In ngrok command line, enter ngrok http YOUR_PORT and copy the Forwarding address

Now you can use this Forwarding link on any device (i.e. your physical android devices) and it will be hosting your localhost server. For example,

Replace

http://localhost/my-files/

with

http://YOUR_FORWARDING_ADDRESS/my-files/

After hours of trying every possible solution, this was it.
A
Abhishek Singh

First of all make your machine(where server is running)IP address static. Enter this static IP address in the android code. Next go to your wifi router's interface and check the left panel. You will see option such as port forwarding/forwarding. Click on it and forward port 80. Now edit your htttpd.conf file and edit it for

Allow from All

. Restart your server. Everything should work fine now.

Additionally you can reserve the IP address of your machine so that it is always allocated to you. In the left panel of your router's interface, find DHCP -> Address Reservation, click on it. Enter your machine's MAC address and the IP address you have entered in the code. Click on save. This will reserve the given IP address for your machine.


S
Shuyaib Abdullah

Adding a solution for future developers.

Copy address of your ip address. right click on your network -> network and sharing-> click on the connection you currently have-> details-> then the address beside ipv4 address is your ip address, note this down somewhere

Go to control panel -> system and security -> windows firewall -> advanced settings -> inbound rules -> new rules (follow the steps to add a port e.g 80, its really simple to follow)

put your ip address that you noted down on your phone browser and the port number you created the rule for beside it. e.g 192.168.0.2:80 and wala.

Possible solution if it doesn't connect. right click network->open network and sharing-> look under view your active connections, under the name of your connection at the type of connection and click on it if it is public, and make sure to change it to a home network.


Thanks for the last paragraph, that was the problem for me :)
O
OneCricketeer

Although one answer has been accepted but this worked for me:

Make sure both your computer and android device are on same network. get your computer's ip address. (in case of mac type ifconfig inside terminal and look for en0/en1 -> inet it should be something like 19*.16*.1.4.) (on windows, use `ipconfig) Open your mobile settings and go to network-> long press your wifi network-> modify network -> scroll down to advanced options -> chose proxy manual and in proxy hostname type your address i.e. 19*.16*.1.4 inside port enter your port. and save it. search for what is my ip in google chrome, and get your ip, lets say it is 1**.1**.15*.2** try accessing 1**.1**.15*.2**:port/ from your mobile device.

It is as simple as this.


You don't need a proxy over WiFi and you also don't need the external ip address within a local network
S
Stefan Michev

What worked for me ( target: debug an windows server app running on localhost:99999 from an client app running on android phone )

phone and pc connected on the same network e.g. 192.168.1.xxx ( connected via wifi in my case) enable port 99999 in windows firewall run in cmd as administrator: netsh http add urlacl url=http://*:99999/ user=Everyone

then the service app url (my_dev_machine_ip:99999/path_to_service) was accessible from the phone.