diff --git a/dev/a11y_assessments/android/.gitignore b/dev/a11y_assessments/android/.gitignore
index 6f568019d3..37277cde06 100644
--- a/dev/a11y_assessments/android/.gitignore
+++ b/dev/a11y_assessments/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
diff --git a/dev/integration_tests/android_verified_input/android/.gitignore b/dev/integration_tests/android_verified_input/android/.gitignore
index 6f568019d3..37277cde06 100644
--- a/dev/integration_tests/android_verified_input/android/.gitignore
+++ b/dev/integration_tests/android_verified_input/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
diff --git a/dev/integration_tests/deferred_components_test/android/.gitignore b/dev/integration_tests/deferred_components_test/android/.gitignore
index de66602df3..4a7c61fda6 100644
--- a/dev/integration_tests/deferred_components_test/android/.gitignore
+++ b/dev/integration_tests/deferred_components_test/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # This app uses a test key and should not be used in a production app.
 # key.properties
diff --git a/dev/integration_tests/native_driver_test/android/.gitignore b/dev/integration_tests/native_driver_test/android/.gitignore
index 55afd919c6..be3943c96d 100644
--- a/dev/integration_tests/native_driver_test/android/.gitignore
+++ b/dev/integration_tests/native_driver_test/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/to/reference-keystore
diff --git a/dev/integration_tests/non_nullable/android/.gitignore b/dev/integration_tests/non_nullable/android/.gitignore
index bc2100d8f7..e2701817f8 100644
--- a/dev/integration_tests/non_nullable/android/.gitignore
+++ b/dev/integration_tests/non_nullable/android/.gitignore
@@ -5,3 +5,4 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
diff --git a/dev/manual_tests/android/.gitignore b/dev/manual_tests/android/.gitignore
index 6f568019d3..37277cde06 100644
--- a/dev/manual_tests/android/.gitignore
+++ b/dev/manual_tests/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
diff --git a/dev/tracing_tests/android/.gitignore b/dev/tracing_tests/android/.gitignore
index 6f568019d3..37277cde06 100644
--- a/dev/tracing_tests/android/.gitignore
+++ b/dev/tracing_tests/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
diff --git a/packages/flutter_tools/templates/app/android.tmpl/.gitignore b/packages/flutter_tools/templates/app/android.tmpl/.gitignore
index 55afd919c6..be3943c96d 100644
--- a/packages/flutter_tools/templates/app/android.tmpl/.gitignore
+++ b/packages/flutter_tools/templates/app/android.tmpl/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/to/reference-keystore
diff --git a/packages/flutter_tools/templates/plugin/android.tmpl/.gitignore b/packages/flutter_tools/templates/plugin/android.tmpl/.gitignore
index c6cbe562a4..0edc5ba028 100644
--- a/packages/flutter_tools/templates/plugin/android.tmpl/.gitignore
+++ b/packages/flutter_tools/templates/plugin/android.tmpl/.gitignore
@@ -6,3 +6,4 @@
 .DS_Store
 /build
 /captures
+.cxx/
diff --git a/packages/integration_test/android/.gitignore b/packages/integration_test/android/.gitignore
index c6cbe562a4..0edc5ba028 100644
--- a/packages/integration_test/android/.gitignore
+++ b/packages/integration_test/android/.gitignore
@@ -6,3 +6,4 @@
 .DS_Store
 /build
 /captures
+.cxx/
diff --git a/packages/integration_test/example/android/.gitignore b/packages/integration_test/example/android/.gitignore
index 8e599af9f2..7596838c8c 100644
--- a/packages/integration_test/example/android/.gitignore
+++ b/packages/integration_test/example/android/.gitignore
@@ -5,6 +5,7 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.cxx/
 
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/to/reference-keystore