Android err_cleartext_not_permitted

  安卓九点零新的限制

对未加密流量不在信任，直接放弃请求

解决方案参考这个

https://blog.youkuaiyun.com/qq_18620851/article/details/80617549

https://stackoverflow.com/questions/45940861/android-8-cleartext-http-traffic-not-permitted

就是额外设置请求的配置

最简单的配置方法是：

AndroidManifest.xml –

<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
    <uses-permission android:name="android.permission.INTERNET" />
    <application
        ...
        android:usesCleartextTraffic="true"
        ...>
        ...
    </application>
</manifest>