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Assets/Plugins/Editor/UnityWebViewPostprocessBuild.cs

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+#if UNITY_EDITOR
+using System.Collections.Generic;
+using System.Collections;
+using System.IO;
+using System.Reflection;
+using System.Text.RegularExpressions;
+using System.Text;
+using System.Xml;
+using System;
+using UnityEditor.Android;
+#if UNITY_2018_1_OR_NEWER
+using UnityEditor.Build;
+#endif
+using UnityEditor.Callbacks;
+using UnityEditor;
+using UnityEngine;
+
+#if UNITY_2018_1_OR_NEWER
+public class UnityWebViewPostprocessBuild : IPreprocessBuild, IPostGenerateGradleAndroidProject
+#else
+public class UnityWebViewPostprocessBuild
+#endif
+{
+    private static bool nofragment = false;
+
+    //// for android/unity 2018.1 or newer
+    //// cf. https://forum.unity.com/threads/android-hardwareaccelerated-is-forced-false-in-all-activities.532786/
+    //// cf. https://github.com/Over17/UnityAndroidManifestCallback
+
+#if UNITY_2018_1_OR_NEWER
+    public void OnPreprocessBuild(BuildTarget buildTarget, string path) {
+        if (buildTarget == BuildTarget.Android) {
+            var dev = "Packages/net.gree.unity-webview/Assets/Plugins/Android/WebViewPlugin-development.aar.tmpl";
+            var rel = "Packages/net.gree.unity-webview/Assets/Plugins/Android/WebViewPlugin-release.aar.tmpl";
+            if (!File.Exists(dev) || !File.Exists(rel)) {
+                dev = "Assets/Plugins/Android/WebViewPlugin-development.aar.tmpl";
+                rel = "Assets/Plugins/Android/WebViewPlugin-release.aar.tmpl";
+            }
+            var src = (EditorUserBuildSettings.development) ? dev : rel;
+            //Directory.CreateDirectory("Temp/StagingArea/aar");
+            //File.Copy(src, "Temp/StagingArea/aar/WebViewPlugin.aar", true);
+            Directory.CreateDirectory("Assets/Plugins/Android");
+            File.Copy(src, "Assets/Plugins/Android/WebViewPlugin.aar", true);
+        }
+    }
+
+    public void OnPostGenerateGradleAndroidProject(string basePath) {
+        var changed = false;
+        var androidManifest = new AndroidManifest(GetManifestPath(basePath));
+        if (!nofragment) {
+            changed = (androidManifest.AddFileProvider(basePath) || changed);
+            {
+                var path = GetBuildGradlePath(basePath);
+                var lines0 = File.ReadAllText(path).Replace("\r\n", "\n").Replace("\r", "\n").Split(new[]{'\n'});
+                {
+                    var lines = new List<string>();
+                    var independencies = false;
+                    foreach (var line in lines0) {
+                        if (line == "dependencies {") {
+                            independencies = true;
+                        } else if (independencies && line == "}") {
+                            independencies = false;
+                            lines.Add("    implementation 'androidx.core:core:1.6.0'");
+                        } else if (independencies) {
+                            if (line.Contains("implementation(name: 'core")
+                                || line.Contains("implementation(name: 'androidx.core.core")
+                                || line.Contains("implementation 'androidx.core:core")) {
+                                break;
+                            }
+                        }
+                        lines.Add(line);
+                    }
+                    if (lines.Count > lines0.Length) {
+                        File.WriteAllText(path, string.Join("\n", lines) + "\n");
+                    }
+                }
+            }
+            {
+                var path = GetGradlePropertiesPath(basePath);
+                var lines0 = "";
+                var lines = "";
+                if (File.Exists(path)) {
+                    lines0 = File.ReadAllText(path).Replace("\r\n", "\n").Replace("\r", "\n") + "\n";
+                    lines = lines0;
+                }
+                if (!lines.Contains("android.useAndroidX=true")) {
+                    lines += "android.useAndroidX=true\n";
+                }
+                if (!lines.Contains("android.enableJetifier=true")) {
+                    lines += "android.enableJetifier=true\n";
+                }
+                if (lines != lines0) {
+                    File.WriteAllText(path, lines);
+                }
+            }
+        }
+        changed = (androidManifest.SetExported(true) || changed);
+        changed = (androidManifest.SetWindowSoftInputMode("adjustPan") || changed);
+        changed = (androidManifest.SetHardwareAccelerated(true) || changed);
+#if UNITYWEBVIEW_ANDROID_USES_CLEARTEXT_TRAFFIC
+        changed = (androidManifest.SetUsesCleartextTraffic(true) || changed);
+#endif
+#if UNITYWEBVIEW_ANDROID_ENABLE_CAMERA
+        changed = (androidManifest.AddCamera() || changed);
+        changed = (androidManifest.AddGallery() || changed);
+#endif
+#if UNITYWEBVIEW_ANDROID_ENABLE_MICROPHONE
+        changed = (androidManifest.AddMicrophone() || changed);
+#endif
+        if (changed) {
+            androidManifest.Save();
+            Debug.Log("unitywebview: adjusted AndroidManifest.xml.");
+        }
+    }
+#endif
+
+    public int callbackOrder {
+        get {
+            return 1;
+        }
+    }
+
+    private string GetManifestPath(string basePath) {
+        var pathBuilder = new StringBuilder(basePath);
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("src");
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("main");
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("AndroidManifest.xml");
+        return pathBuilder.ToString();
+    }
+
+    private string GetBuildGradlePath(string basePath) {
+        var pathBuilder = new StringBuilder(basePath);
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("build.gradle");
+        return pathBuilder.ToString();
+    }
+
+    private string GetGradlePropertiesPath(string basePath) {
+        var pathBuilder = new StringBuilder(basePath);
+        if (basePath.EndsWith("unityLibrary")) {
+            pathBuilder.Append(Path.DirectorySeparatorChar).Append("..");
+        }
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("gradle.properties");
+        return pathBuilder.ToString();
+    }
+
+    //// for others
+
+    [PostProcessBuild(100)]
+    public static void OnPostprocessBuild(BuildTarget buildTarget, string path) {
+#if UNITY_2018_1_OR_NEWER
+        try {
+            File.Delete("Assets/Plugins/Android/WebViewPlugin.aar");
+            File.Delete("Assets/Plugins/Android/WebViewPlugin.aar.meta");
+            Directory.Delete("Assets/Plugins/Android");
+            File.Delete("Assets/Plugins/Android.meta");
+            Directory.Delete("Assets/Plugins");
+            File.Delete("Assets/Plugins.meta");
+        } catch (Exception) {
+        }
+#else
+        if (buildTarget == BuildTarget.Android) {
+            string manifest = Path.Combine(Application.dataPath, "Plugins/Android/AndroidManifest.xml");
+            if (!File.Exists(manifest)) {
+                string manifest0 = Path.Combine(Application.dataPath, "../Temp/StagingArea/AndroidManifest-main.xml");
+                if (!File.Exists(manifest0)) {
+                    Debug.LogError("unitywebview: cannot find both Assets/Plugins/Android/AndroidManifest.xml and Temp/StagingArea/AndroidManifest-main.xml. please build the app to generate Assets/Plugins/Android/AndroidManifest.xml and then rebuild it again.");
+                    return;
+                } else {
+                    File.Copy(manifest0, manifest, true);
+                }
+            }
+            var changed = false;
+            if (EditorUserBuildSettings.development) {
+                if (!File.Exists("Assets/Plugins/Android/WebView.aar")
+                    || !File.ReadAllBytes("Assets/Plugins/Android/WebView.aar").SequenceEqual(File.ReadAllBytes("Assets/Plugins/Android/WebViewPlugin-development.aar.tmpl"))) {
+                    File.Copy("Assets/Plugins/Android/WebViewPlugin-development.aar.tmpl", "Assets/Plugins/Android/WebView.aar", true);
+                    changed = true;
+                }
+            } else {
+                if (!File.Exists("Assets/Plugins/Android/WebView.aar")
+                    || !File.ReadAllBytes("Assets/Plugins/Android/WebView.aar").SequenceEqual(File.ReadAllBytes("Assets/Plugins/Android/WebViewPlugin-release.aar.tmpl"))) {
+                    File.Copy("Assets/Plugins/Android/WebViewPlugin-release.aar.tmpl", "Assets/Plugins/Android/WebView.aar", true);
+                    changed = true;
+                }
+            }
+            var androidManifest = new AndroidManifest(manifest);
+            if (!nofragment) {
+                changed = (androidManifest.AddFileProvider("Assets/Plugins/Android") || changed);
+                var files = Directory.GetFiles("Assets/Plugins/Android/");
+                var found = false;
+                foreach (var file in files) {
+                    if (Regex.IsMatch(file, @"^Assets/Plugins/Android/(androidx\.core\.)?core-.*.aar$")) {
+                        found = true;
+                        break;
+                    }
+                }
+                if (!found) {
+                    foreach (var file in files) {
+                        var match = Regex.Match(file, @"^Assets/Plugins/Android/(core.*.aar).tmpl$");
+                        if (match.Success) {
+                            var name = match.Groups[1].Value;
+                            File.Copy(file, "Assets/Plugins/Android/" + name, true);
+                            break;
+                        }
+                    }
+                }
+            }
+            changed = (androidManifest.SetWindowSoftInputMode("adjustPan") || changed);
+            changed = (androidManifest.SetHardwareAccelerated(true) || changed);
+#if UNITYWEBVIEW_ANDROID_USES_CLEARTEXT_TRAFFIC
+            changed = (androidManifest.SetUsesCleartextTraffic(true) || changed);
+#endif
+#if UNITYWEBVIEW_ANDROID_ENABLE_CAMERA
+            changed = (androidManifest.AddCamera() || changed);
+            changed = (androidManifest.AddGallery() || changed);
+#endif
+#if UNITYWEBVIEW_ANDROID_ENABLE_MICROPHONE
+            changed = (androidManifest.AddMicrophone() || changed);
+#endif
+#if UNITY_5_6_0 || UNITY_5_6_1
+            changed = (androidManifest.SetActivityName("net.gree.unitywebview.CUnityPlayerActivity") || changed);
+#endif
+            if (changed) {
+                androidManifest.Save();
+                Debug.LogError("unitywebview: adjusted AndroidManifest.xml and/or WebView.aar. Please rebuild the app.");
+            }
+        }
+#endif
+        if (buildTarget == BuildTarget.iOS) {
+            string projPath = path + "/Unity-iPhone.xcodeproj/project.pbxproj";
+            var type = Type.GetType("UnityEditor.iOS.Xcode.PBXProject, UnityEditor.iOS.Extensions.Xcode");
+            if (type == null)
+            {
+                Debug.LogError("unitywebview: failed to get PBXProject. please install iOS build support.");
+                return;
+            }
+            var src = File.ReadAllText(projPath);
+            //dynamic proj = type.GetConstructor(Type.EmptyTypes).Invoke(null);
+            var proj = type.GetConstructor(Type.EmptyTypes).Invoke(null);
+            //proj.ReadFromString(src);
+            {
+                var method = type.GetMethod("ReadFromString");
+                method.Invoke(proj, new object[]{src});
+            }
+            var target = "";
+#if UNITY_2019_3_OR_NEWER
+            //target = proj.GetUnityFrameworkTargetGuid();
+            {
+                var method = type.GetMethod("GetUnityFrameworkTargetGuid");
+                target = (string)method.Invoke(proj, null);
+            }
+#else
+            //target = proj.TargetGuidByName("Unity-iPhone");
+            {
+                var method = type.GetMethod("TargetGuidByName");
+                target = (string)method.Invoke(proj, new object[]{"Unity-iPhone"});
+            }
+#endif
+            //proj.AddFrameworkToProject(target, "WebKit.framework", false);
+            {
+                var method = type.GetMethod("AddFrameworkToProject");
+                method.Invoke(proj, new object[]{target, "WebKit.framework", false});
+            }
+            var cflags = "";
+            if (EditorUserBuildSettings.development) {
+                cflags += " -DUNITYWEBVIEW_DEVELOPMENT";
+            }
+#if UNITYWEBVIEW_IOS_ALLOW_FILE_URLS
+            cflags += " -DUNITYWEBVIEW_IOS_ALLOW_FILE_URLS";
+#endif
+            cflags = cflags.Trim();
+            if (!string.IsNullOrEmpty(cflags)) {
+                // proj.AddBuildProperty(target, "OTHER_LDFLAGS", cflags);
+                var method = type.GetMethod("AddBuildProperty", new Type[]{typeof(string), typeof(string), typeof(string)});
+                method.Invoke(proj, new object[]{target, "OTHER_CFLAGS", cflags});
+            }
+            var dst = "";
+            //dst = proj.WriteToString();
+            {
+                var method = type.GetMethod("WriteToString");
+                dst = (string)method.Invoke(proj, null);
+            }
+            File.WriteAllText(projPath, dst);
+        }
+    }
+}
+
+internal class AndroidXmlDocument : XmlDocument {
+    private string m_Path;
+    protected XmlNamespaceManager nsMgr;
+    public readonly string AndroidXmlNamespace = "http://schemas.android.com/apk/res/android";
+
+    public AndroidXmlDocument(string path) {
+        m_Path = path;
+        using (var reader = new XmlTextReader(m_Path)) {
+            reader.Read();
+            Load(reader);
+        }
+        nsMgr = new XmlNamespaceManager(NameTable);
+        nsMgr.AddNamespace("android", AndroidXmlNamespace);
+    }
+
+    public string Save() {
+        return SaveAs(m_Path);
+    }
+
+    public string SaveAs(string path) {
+        using (var writer = new XmlTextWriter(path, new UTF8Encoding(false))) {
+            writer.Formatting = Formatting.Indented;
+            Save(writer);
+        }
+        return path;
+    }
+}
+
+internal class AndroidManifest : AndroidXmlDocument {
+    private readonly XmlElement ManifestElement;
+    private readonly XmlElement ApplicationElement;
+
+    public AndroidManifest(string path) : base(path) {
+        ManifestElement = SelectSingleNode("/manifest") as XmlElement;
+        ApplicationElement = SelectSingleNode("/manifest/application") as XmlElement;
+    }
+
+    private XmlAttribute CreateAndroidAttribute(string key, string value) {
+        XmlAttribute attr = CreateAttribute("android", key, AndroidXmlNamespace);
+        attr.Value = value;
+        return attr;
+    }
+
+    internal XmlNode GetActivityWithLaunchIntent() {
+        return
+            SelectSingleNode(
+                "/manifest/application/activity[intent-filter/action/@android:name='android.intent.action.MAIN' and "
+                + "intent-filter/category/@android:name='android.intent.category.LAUNCHER']",
+                nsMgr);
+    }
+
+    internal bool SetUsesCleartextTraffic(bool enabled) {
+        // android:usesCleartextTraffic
+        bool changed = false;
+        if (ApplicationElement.GetAttribute("usesCleartextTraffic", AndroidXmlNamespace) != ((enabled) ? "true" : "false")) {
+            ApplicationElement.SetAttribute("usesCleartextTraffic", AndroidXmlNamespace, (enabled) ? "true" : "false");
+            changed = true;
+        }
+        return changed;
+    }
+
+    // for api level 33
+    internal bool SetExported(bool enabled) {
+        bool changed = false;
+        var activity = GetActivityWithLaunchIntent() as XmlElement;
+        if (activity.GetAttribute("exported", AndroidXmlNamespace) != ((enabled) ? "true" : "false")) {
+            activity.SetAttribute("exported", AndroidXmlNamespace, (enabled) ? "true" : "false");
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool SetWindowSoftInputMode(string mode) {
+        bool changed = false;
+        var activity = GetActivityWithLaunchIntent() as XmlElement;
+        if (activity.GetAttribute("windowSoftInputMode", AndroidXmlNamespace) != mode) {
+            activity.SetAttribute("windowSoftInputMode", AndroidXmlNamespace, mode);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool SetHardwareAccelerated(bool enabled) {
+        bool changed = false;
+        var activity = GetActivityWithLaunchIntent() as XmlElement;
+        if (activity.GetAttribute("hardwareAccelerated", AndroidXmlNamespace) != ((enabled) ? "true" : "false")) {
+            activity.SetAttribute("hardwareAccelerated", AndroidXmlNamespace, (enabled) ? "true" : "false");
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool SetActivityName(string name) {
+        bool changed = false;
+        var activity = GetActivityWithLaunchIntent() as XmlElement;
+        if (activity.GetAttribute("name", AndroidXmlNamespace) != name) {
+            activity.SetAttribute("name", AndroidXmlNamespace, name);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddFileProvider(string basePath) {
+        bool changed = false;
+        var authorities = PlayerSettings.applicationIdentifier + ".unitywebview.fileprovider";
+        if (SelectNodes("/manifest/application/provider[@android:authorities='" + authorities + "']", nsMgr).Count == 0) {
+            var elem = CreateElement("provider");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "androidx.core.content.FileProvider"));
+            elem.Attributes.Append(CreateAndroidAttribute("authorities", authorities));
+            elem.Attributes.Append(CreateAndroidAttribute("exported", "false"));
+            elem.Attributes.Append(CreateAndroidAttribute("grantUriPermissions", "true"));
+            var meta = CreateElement("meta-data");
+            meta.Attributes.Append(CreateAndroidAttribute("name", "android.support.FILE_PROVIDER_PATHS"));
+            meta.Attributes.Append(CreateAndroidAttribute("resource", "@xml/unitywebview_file_provider_paths"));
+            elem.AppendChild(meta);
+            ApplicationElement.AppendChild(elem);
+            changed = true;
+            var xml = GetFileProviderSettingPath(basePath);
+            if (!File.Exists(xml)) {
+                Directory.CreateDirectory(Path.GetDirectoryName(xml));
+                File.WriteAllText(
+                    xml,
+                    "<paths xmlns:android=\"http://schemas.android.com/apk/res/android\">\n" +
+                    "  <external-path name=\"unitywebview_file_provider_images\" path=\".\"/>\n" +
+                    "</paths>\n");
+            }
+        }
+        return changed;
+    }
+
+    private string GetFileProviderSettingPath(string basePath) {
+        var pathBuilder = new StringBuilder(basePath);
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("src");
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("main");
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("res");
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("xml");
+        pathBuilder.Append(Path.DirectorySeparatorChar).Append("unitywebview_file_provider_paths.xml");
+        return pathBuilder.ToString();
+    }
+
+    internal bool AddCamera() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.CAMERA']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.CAMERA"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-feature[@android:name='android.hardware.camera']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-feature");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.hardware.camera"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        // cf. https://developer.android.com/training/data-storage/shared/media#media-location-permission
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.ACCESS_MEDIA_LOCATION']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.ACCESS_MEDIA_LOCATION"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        // cf. https://developer.android.com/training/package-visibility/declaring
+        if (SelectNodes("/manifest/queries", nsMgr).Count == 0) {
+            var elem = CreateElement("queries");
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/queries/intent/action[@android:name='android.media.action.IMAGE_CAPTURE']", nsMgr).Count == 0) {
+            var action = CreateElement("action");
+            action.Attributes.Append(CreateAndroidAttribute("name", "android.media.action.IMAGE_CAPTURE"));
+            var intent = CreateElement("intent");
+            intent.AppendChild(action);
+            var queries = SelectSingleNode("/manifest/queries") as XmlElement;
+            queries.AppendChild(intent);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddGallery() {
+        bool changed = false;
+        // for api level 33
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.READ_MEDIA_IMAGES']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.READ_MEDIA_IMAGES"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.READ_MEDIA_VIDEO']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.READ_MEDIA_VIDEO"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.READ_MEDIA_AUDIO']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.READ_MEDIA_AUDIO"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        // cf. https://developer.android.com/training/package-visibility/declaring
+        if (SelectNodes("/manifest/queries", nsMgr).Count == 0) {
+            var elem = CreateElement("queries");
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/queries/intent/action[@android:name='android.media.action.GET_CONTENT']", nsMgr).Count == 0) {
+            var action = CreateElement("action");
+            action.Attributes.Append(CreateAndroidAttribute("name", "android.media.action.GET_CONTENT"));
+            var intent = CreateElement("intent");
+            intent.AppendChild(action);
+            var queries = SelectSingleNode("/manifest/queries") as XmlElement;
+            queries.AppendChild(intent);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddMicrophone() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.MICROPHONE']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.MICROPHONE"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-feature[@android:name='android.hardware.microphone']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-feature");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.hardware.microphone"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        // cf. https://github.com/gree/unity-webview/issues/679
+        // cf. https://github.com/fluttercommunity/flutter_webview_plugin/issues/138#issuecomment-559307558
+        // cf. https://stackoverflow.com/questions/38917751/webview-webrtc-not-working/68024032#68024032
+        // cf. https://stackoverflow.com/questions/40236925/allowing-microphone-accesspermission-in-webview-android-studio-java/47410311#47410311
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.MODIFY_AUDIO_SETTINGS']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.MODIFY_AUDIO_SETTINGS"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.RECORD_AUDIO']", nsMgr).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.RECORD_AUDIO"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        return changed;
+    }
+}
+#endif

Assets/Plugins/Editor/UnityWebViewPostprocessBuild.cs.meta

@@ -0,0 +1,11 @@
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