【Flutter】HTTP通信の許可

発生している問題・エラーメッセージ

HTTP通信を許可させたい。
が、IPアドレスのドメインを許可させようとすると、以下のようなエラーが発生する。

Dart Unhandled Exception: Invalid argument (domain): Invalid domain name: "34.101.XXX.XXX"

該当のソースコード

android/app/src/main/res/xml/network_security_config.xml

dart
1<?xml version="1.0" encoding="utf-8"?>
2<network-security-config>
3    <domain-config cleartextTrafficPermitted="true">
4        <domain includeSubdomains="true">34.101.XXX.XXX</domain>
5    </domain-config>
6</network-security-config>
7

android/app/src/main/AndroidManifest.xml

dart
1<manifest xmlns:android="http://schemas.android.com/apk/res/android"
2    package="XXX">
3    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
4         calls FlutterMain.startInitialization(this); in its onCreate method.
5         In most cases you can leave this as-is, but you if you want to provide
6         additional functionality it is fine to subclass or reimplement
7         FlutterApplication and put your custom class here. -->
8    <uses-permission android:name="android.permission.INTERNET" />
9    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
10    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
11    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
12
13    <application
14        android:name=".Application"
15        android:icon="@mipmap/launcher_icon"
16        android:usesCleartextTraffic="true"
17        android:label="@string/app_name">
18
19        <meta-data android:name="io.flutter.network-policy"
20            android:resource="@xml/network_security_config"/>
21        <meta-data
22            android:name="com.google.android.geo.API_KEY"
23            android:value="${GEO_API_KEY}"/>
24        <activity
25            android:name=".MainActivity"
26            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
27            android:hardwareAccelerated="true"
28            android:launchMode="singleTop"
29            android:theme="@style/LaunchTheme"
30            android:windowSoftInputMode="adjustResize">
31            <!-- Specifies an Android theme to apply to this Activity as soon as
32                 the Android process has started. This theme is visible to the user
33                 while the Flutter UI initializes. After that, this theme continues
34                 to determine the Window background behind the Flutter UI. -->
35
36            <meta-data
37                android:name="io.flutter.embedding.android.NormalTheme"
38                android:resource="@style/NormalTheme" />
39
40            <!-- Displays an Android View that continues showing the launch screen
41                 Drawable until Flutter paints its first frame, then this splash
42                 screen fades out. A splash screen is useful to avoid any visual
43                 gap between the end of Android's launch screen and the painting of
44                 Flutter's first frame. -->
45            <meta-data
46                android:name="io.flutter.embedding.android.SplashScreenDrawable"
47                android:resource="@drawable/launch_background" />
48            <meta-data
49                android:name="com.google.firebase.messaging.default_notification_channel_id"
50                android:value="@string/default_notification_channel_id" />
51
52            <intent-filter>
53                <action android:name="android.intent.action.MAIN" />
54                <category android:name="android.intent.category.LAUNCHER" />
55            </intent-filter>
56            <intent-filter>
57                <action android:name="FLUTTER_NOTIFICATION_CLICK" />
58                <category android:name="android.intent.category.DEFAULT" />
59            </intent-filter>
60        </activity>
61        <!-- Don't delete the meta-data below.
62             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
63        <meta-data
64            android:name="flutterEmbedding"
65            android:value="2" />
66    </application>
67</manifest>