[android-emulator] How do you connect localhost in the Android emulator?

I have made a php script inside localhost and I am connecting that with httpClient but I am getting a problem.

Please tell me how can I connect to a php file at localhost from the emulator?

you should change the adb port with this command:

adb reverse tcp:8880 tcp:8880; adb reverse tcp:8081 tcp:8081; adb reverse tcp:8881 tcp:8881

This is what finally worked for me.

• Backend running on localhost:8080
• Fetch your IP address (ipconfig on Windows)

• Configure your Android emulator's proxy to use your IP address as host name and the port your backend is running on as port (in my case: 192.168.1.86:8080

• Have your Android app send requests to the same URL (192.168.1.86:8080) (sending requests to localhost, and http://10.0.2.2 did not work for me)

Thanks, @lampShaded for your answer.

In your API/URL directly use http://10.0.2.2:[your port]/ and under emulator setting add the proxy address as 10.0.2.2 with the port number. For more, you can visit: https://developer.android.com/studio/run/emulator-networking.html

Use 10.0.2.2 for default AVD and 10.0.3.2 for Genymotion

Thanks to author of this blog: https://bigdata-etl.com/solved-how-to-connect-from-android-emulator-to-application-on-localhost/

Defining network security config in xml

<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
       <domain includeSubdomains="true">10.0.2.2</domain>
    </domain-config>
</network-security-config>

And setting it on AndroidManifest.xml

 <application
    android:networkSecurityConfig="@xml/network_security_config"
</application>

Solved issue for me!

Please refer: https://developer.android.com/training/articles/security-config

Instead of giving localhost give the IP.