diff --git a/dev/a11y_assessments/android/.gitignore b/dev/a11y_assessments/android/.gitignore
index 37277cde06..be3943c96d 100644
--- a/dev/a11y_assessments/android/.gitignore
+++ b/dev/a11y_assessments/android/.gitignore
@@ -8,7 +8,7 @@ GeneratedPluginRegistrant.java
 .cxx/
 
 # Remember to never publicly share your keystore.
-# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+# See https://flutter.dev/to/reference-keystore
 key.properties
 **/*.keystore
 **/*.jks
diff --git a/dev/benchmarks/complex_layout/android/.gitignore b/dev/benchmarks/complex_layout/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/complex_layout/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/macrobenchmarks/android/.gitignore b/dev/benchmarks/macrobenchmarks/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/macrobenchmarks/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/microbenchmarks/android/.gitignore b/dev/benchmarks/microbenchmarks/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/microbenchmarks/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/multiple_flutters/android/.gitignore b/dev/benchmarks/multiple_flutters/android/.gitignore
index aa724b7707..be3943c96d 100644
--- a/dev/benchmarks/multiple_flutters/android/.gitignore
+++ b/dev/benchmarks/multiple_flutters/android/.gitignore
@@ -1,15 +1,14 @@
-*.iml
-.gradle
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
 /local.properties
-/.idea/caches
-/.idea/libraries
-/.idea/modules.xml
-/.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
-.DS_Store
-/build
-/captures
-.externalNativeBuild
-.cxx
-local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/platform_channels_benchmarks/android/.gitignore b/dev/benchmarks/platform_channels_benchmarks/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/platform_channels_benchmarks/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/platform_views_layout/android/.gitignore b/dev/benchmarks/platform_views_layout/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/platform_views_layout_hybrid_composition/android/.gitignore b/dev/benchmarks/platform_views_layout_hybrid_composition/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/platform_views_layout_hybrid_composition/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/benchmarks/test_apps/stocks/android/.gitignore b/dev/benchmarks/test_apps/stocks/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/benchmarks/test_apps/stocks/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/android_semantics_testing/android/.gitignore b/dev/integration_tests/android_semantics_testing/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/android_semantics_testing/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/android_views/android/.gitignore b/dev/integration_tests/android_views/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/android_views/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/channels/android/.gitignore b/dev/integration_tests/channels/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/channels/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/deferred_components_test/android/.gitignore b/dev/integration_tests/deferred_components_test/android/.gitignore
index 4a7c61fda6..be3943c96d 100644
--- a/dev/integration_tests/deferred_components_test/android/.gitignore
+++ b/dev/integration_tests/deferred_components_test/android/.gitignore
@@ -7,5 +7,8 @@ gradle-wrapper.jar
 GeneratedPluginRegistrant.java
 .cxx/
 
-# This app uses a test key and should not be used in a production app.
-# key.properties
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/display_cutout_rotation/android/.gitignore b/dev/integration_tests/display_cutout_rotation/android/.gitignore
index 55afd919c6..be3943c96d 100644
--- a/dev/integration_tests/display_cutout_rotation/android/.gitignore
+++ b/dev/integration_tests/display_cutout_rotation/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/external_textures/android/.gitignore b/dev/integration_tests/external_textures/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/external_textures/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/flavors/android/.gitignore b/dev/integration_tests/flavors/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/flavors/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/flutter_gallery/android/.gitignore b/dev/integration_tests/flutter_gallery/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/flutter_gallery/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/platform_interaction/android/.gitignore b/dev/integration_tests/platform_interaction/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/platform_interaction/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/release_smoke_test/android/.gitignore b/dev/integration_tests/release_smoke_test/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/release_smoke_test/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/spell_check/android/.gitignore b/dev/integration_tests/spell_check/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/spell_check/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/integration_tests/ui/android/.gitignore b/dev/integration_tests/ui/android/.gitignore
new file mode 100644
index 0000000000..be3943c96d
--- /dev/null
+++ b/dev/integration_tests/ui/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/dev/manual_tests/android/.gitignore b/dev/manual_tests/android/.gitignore
index 37277cde06..be3943c96d 100644
--- a/dev/manual_tests/android/.gitignore
+++ b/dev/manual_tests/android/.gitignore
@@ -8,7 +8,7 @@ GeneratedPluginRegistrant.java
 .cxx/
 
 # Remember to never publicly share your keystore.
-# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+# See https://flutter.dev/to/reference-keystore
 key.properties
 **/*.keystore
 **/*.jks
diff --git a/dev/tracing_tests/android/.gitignore b/dev/tracing_tests/android/.gitignore
index 37277cde06..be3943c96d 100644
--- a/dev/tracing_tests/android/.gitignore
+++ b/dev/tracing_tests/android/.gitignore
@@ -8,7 +8,7 @@ GeneratedPluginRegistrant.java
 .cxx/
 
 # Remember to never publicly share your keystore.
-# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+# See https://flutter.dev/to/reference-keystore
 key.properties
 **/*.keystore
 **/*.jks