diff --git a/03-Service/GetSetService/Android.mk b/03-Service/GetSetService/Android.mk
new file mode 100755
index 0000000..da27af9
--- /dev/null
+++ b/03-Service/GetSetService/Android.mk
@@ -0,0 +1,23 @@
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_USE_AAPT2 := true
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, app/src/main/java)
+LOCAL_SRC_FILES := $(call all-java-files-under, app/src/main/aidl)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/app/src/main/res
+
+LOCAL_MANIFEST_FILE := app/src/main/AndroidManifest.xml
+
+LOCAL_STATIC_ANDROID_LIBRARIES := \
+	androidx.appcompat_appcompat
+
+LOCAL_PACKAGE_NAME := GetSetService
+
+LOCAL_SDK_VERSION := 28
+
+include $(BUILD_PACKAGE)
diff --git a/03-Service/GetterApp/Android.mk b/03-Service/GetterApp/Android.mk
new file mode 100755
index 0000000..6c160f3
--- /dev/null
+++ b/03-Service/GetterApp/Android.mk
@@ -0,0 +1,24 @@
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_USE_AAPT2 := true
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, app/src/main/java)
+LOCAL_SRC_FILES := $(call all-java-files-under, app/src/main/aidl)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/app/src/main/res
+
+LOCAL_MANIFEST_FILE := app/src/main/AndroidManifest.xml
+
+LOCAL_STATIC_ANDROID_LIBRARIES := \
+	androidx.appcompat_appcompat \
+	androidx-constraintlayout_constraintlayout
+	
+LOCAL_PACKAGE_NAME := GetterApp
+
+LOCAL_SDK_VERSION := 28
+
+include $(BUILD_PACKAGE)
diff --git a/03-Service/SetterApp/Android.mk b/03-Service/SetterApp/Android.mk
new file mode 100644
index 0000000..9233f3c
--- /dev/null
+++ b/03-Service/SetterApp/Android.mk
@@ -0,0 +1,24 @@
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_USE_AAPT2 := true
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, app/src/main/java)
+LOCAL_SRC_FILES := $(call all-java-files-under, app/src/main/aidl)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/app/src/main/res
+
+LOCAL_MANIFEST_FILE := app/src/main/AndroidManifest.xml
+
+LOCAL_STATIC_ANDROID_LIBRARIES := \
+	androidx.appcompat_appcompat \
+	androidx-constraintlayout_constraintlayout
+
+LOCAL_PACKAGE_NAME := SetterApp
+
+LOCAL_SDK_VERSION := 28
+
+include $(BUILD_PACKAGE)