Allow HTTP (ClearText) from an IP address | Flutter 2 | Android

Question

I need to get a JSON response from an IP address (No Domain Name connected), but flutter 2.0 doesn't allow HTTP, so I followed this answer to enable it, but the problem I face is I dont have domain name, to replace here:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">api.example.com</domain>
    </domain-config>
</network-security-config>

I tried replacing with IP but it throws error that IP is not recognised as domain name.

<domain includeSubdomains="true">x.x.x.x</domain> #doesn't work

Any solution to allow HTTP traffic from IP address.

PS: I know its unsafe.

EDIT:

I tried this methods:

1. Setting res/xml/network_security_config.xml:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true" />
</network-security-config>

Doesn't work.

2. Setting res/xml/network_security_config.xml:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
        <domain includeSubdomains="true">65.0.XX.136</domain>
    </domain-config>
</network-security-config>

Doesn't Work.

3. Setting android:usesCleartextTraffic="true" in application tag of AndroidManifest.xml.

Doesn't work.