ERR_CLEARTEXT_NOT_PERMITTED

https://codechacha.com/ko/android-cleartext-http-traffic-issue/

안드로이드 - Cleartext HTTP ... not permitted 예외 해결 방법

http://today7e.blogspot.com/2019/11/unity-android-androidmanifestxml.html

[Unity Android] AndroidManifest.xml 파일 생성

<?xml version="1.0" encoding="utf-8"?>
<!-- GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.smilejsu.campinggaja"
    android:installLocation="preferExternal"
    android:targetSandboxVersion="2"
    android:versionCode="9"
    android:versionName="0.0.9" >

    <uses-sdk
        android:minSdkVersion="22"
        android:targetSdkVersion="28" />

    <supports-screens
        android:anyDensity="true"
        android:largeScreens="true"
        android:normalScreens="true"
        android:smallScreens="true"
        android:xlargeScreens="true" />

    <uses-feature android:glEsVersion="0x00030000" />
    <uses-feature
        android:name="android.hardware.vulkan.version"
        android:required="false" />

    <uses-permission android:name="android.permission.INTERNET" />

    <uses-feature
        android:name="android.hardware.touchscreen"
        android:required="false" />
    <uses-feature
        android:name="android.hardware.touchscreen.multitouch"
        android:required="false" />
    <uses-feature
        android:name="android.hardware.touchscreen.multitouch.distinct"
        android:required="false" />

    <application
        android:icon="@mipmap/app_icon"
        android:label="@string/app_name" 
        android:usesCleartextTraffic="true" >
        <activity
            android:name="com.unity3d.player.UnityPlayerActivity"
            android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale|layoutDirection|density"
            android:hardwareAccelerated="false"
            android:launchMode="singleTask"
            android:screenOrientation="portrait"
            android:theme="@style/UnityThemeSelector"
            android:usesCleartextTraffic="true" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

            <meta-data
                android:name="unityplayer.UnityActivity"
                android:value="true" />
            <meta-data
                android:name="android.notch_support"
                android:value="true" />
            <meta-data
                android:name="android.notch_support"
                android:value="true" />
        </activity>

        <meta-data
            android:name="unity.splash-mode"
            android:value="0" />
        <meta-data
            android:name="unity.splash-enable"
            android:value="True" />
        <meta-data
            android:name="notch.config"
            android:value="portrait|landscape" />
        <meta-data
            android:name="unity.build-id"
            android:value="dab60fc9-ac15-4fad-8aea-1563f1fd5ff0" />

        <activity android:name="com.onevcat.uniwebview.UniWebViewFileChooserActivity" />
    </application>

</manifest>