diff --git a/android/PromoterDemo/.gitignore b/android/PromoterDemo/.gitignore
new file mode 100644
index 0000000..a02fbbe
--- /dev/null
+++ b/android/PromoterDemo/.gitignore
@@ -0,0 +1,2 @@
+/gen
+/bin
diff --git a/android/PromoterRelease/.gitignore b/android/PromoterRelease/.gitignore
new file mode 100644
index 0000000..a02fbbe
--- /dev/null
+++ b/android/PromoterRelease/.gitignore
@@ -0,0 +1,2 @@
+/gen
+/bin