diff --git a/app/src/main/kotlin/jackall/overlaymulticounter/contract/MainServiceContract.kt b/app/src/main/kotlin/jackall/overlaymulticounter/contract/MainServiceContract.kt
new file mode 100644
index 0000000..bb9adf7
--- /dev/null
+++ b/app/src/main/kotlin/jackall/overlaymulticounter/contract/MainServiceContract.kt
@@ -0,0 +1,10 @@
+package jackall.overlaymulticounter.contract
+
+/**
+ * Created by matsumoto_k on 2017/11/08.
+ */
+interface MainServiceContract {
+    fun showMoveView()
+    fun showCounterView()
+    fun finish()
+}
\ No newline at end of file