Android9.0
Internet problem
Problem Cause: Android P request expressly limits the network traffic, non-encrypted traffic requests are prohibited off system (HTTP), we recommend using HTTPS.
Solution: In the resource file new xml directory, create a file, the file name
network_security_config.xml
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<base-config cleartextTrafficPermitted="true" />
</network-security-config>
Open the AndroidManifest.xml file and add the application label
android: networkSecurityConfig = "@ xml / network_security_config"
<application
android:networkSecurityConfig="@xml/network_security_config">
</application>
https://zhuanlan.zhihu.com/p/52619909
