1 files changed, 6 insertions, 0 deletions
diff --git a/app/src/main/java/moe/yuuta/workmode/async/Callback.kt b/app/src/main/java/moe/yuuta/workmode/async/Callback.kt
new file mode 100644
index 0000000..bac767b
--- /dev/null
+++ b/app/src/main/java/moe/yuuta/workmode/async/Callback.kt
@@ -0,0 +1,6 @@
+package moe.yuuta.workmode.async
+
+interface Callback<T> {
+    fun onStart() {}
+    fun onStop(success: Boolean, result: T?, e: Throwable?) {}
+}
+\ No newline at end of file