I know this question is asket a lot of times. I'm using Api 28. I added this code in AndroidManifest.xml:
<application android:networkSecurityConfig="@xml/network_security_config"></application>
In xml/network_security_config.xml
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="true">
<domain includeSubdomains="true">mypage.com</domain>
</domain-config>
</network-security-config>
Also tested on older API(Api 22) working, i get data from hosted Api(HTTP). Any other suggestions?