A silly code to workaround issue apache/cordova-android#1178

example-app/config.xml

@@ -23,6 +23,7 @@
     <preference name="WKSuspendInBackground" value="false" />
     <preference name="WKWebViewOnly" value="true" />
     <platform name="android">
+        <hook type="before_build" src="scripts/appAndroidBeforeBuild.js" />
         <preference name="AndroidXEnabled" value="true" />
         <preference name="android-minSdkVersion" value="22" />
         <preference name="android-targetSdkVersion" value="30" />

example-app/scripts/appAndroidBeforeBuild.js

@@ -0,0 +1,60 @@
+const fs = require('fs');
+const path = require('path');
+
+module.exports = (context) => {
+  // Make sure android platform is part of build
+  if (!context.opts.platforms.includes('android')) {
+    return;
+  }
+
+  const platformRoot = path.join(context.opts.projectRoot, 'platforms/android');
+  const buildGradleFile = path.join(platformRoot, 'build.gradle');
+  const projectPropertiesFile = path.join(platformRoot, 'project.properties');
+  const cordovaProjectPropertiesFile = path.join(platformRoot, 'CordovaLib/project.properties');
+
+  fs.readFile(buildGradleFile, 'utf8', function (error, data) {
+    if (error) {
+      return console.error(error);
+    }
+    const result = data
+      .replace(/defaultBuildToolsVersion="29.0.2"/g, 'defaultBuildToolsVersion="30.0.3"')
+      .replace(/defaultTargetSdkVersion=29/g, 'defaultTargetSdkVersion=30')
+      .replace(/defaultCompileSdkVersion=29/g, 'defaultCompileSdkVersion=30');
+
+    fs.writeFile(buildGradleFile, result, 'utf8', (error) => {
+      if (error) {
+        return console.error(error);
+      }
+    });
+  });
+
+  fs.readFile(projectPropertiesFile, 'utf8', (error, data) => {
+    if (error) {
+      return console.error(error);
+    }
+    const result = data
+      .replace(/target=android-29/g, 'target=android-30');
+
+    fs.writeFile(projectPropertiesFile, result, 'utf8', (error) => {
+      if (error) {
+        return console.error(error);
+      }
+    });
+  });
+
+  fs.readFile(cordovaProjectPropertiesFile, 'utf8', (error, data) => {
+    if (error) {
+      return console.error(error);
+    }
+    const result = data
+      .replace(/target=android-29/g, 'target=android-30');
+
+    fs.writeFile(cordovaProjectPropertiesFile, result, 'utf8', (error) => {
+      if (error) {
+        return console.error(error);
+      }
+    });
+  });
+
+  return Promise.resolve().then(() => console.log('Modifying build.gradle and project.properties is done to target SDK 30'))
+};