1.在配置本地开发时，出现android not permitted by network security policy的错误

解决: 1.在res->xml 目录下新增配置文件

network_security_config.xml

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true">
        <trust-anchors>
            <certificates src="system" />
        </trust-anchors>
    </base-config>
</network-security-config>

2.再在AndroidManifest.xml中的application节点中加入

android:networkSecurityConfig="@xml/network_security_config"