From c0c7c0d5ec4ac9de5b69db1b2f1c3e1cf23f262c Mon Sep 17 00:00:00 2001
From: gaeun <geun5744@gmail.com>
Date: Tue, 27 Jun 2023 23:02:49 +0900
Subject: [PATCH] =?UTF-8?q?[Add/#9]=20LiveData=EB=A5=BC=20=EC=9C=84?=
 =?UTF-8?q?=ED=95=9C=20Event.kt=20=EC=83=9D=EC=84=B1?=
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---
 .../java/org/android/go/sopt/util/Event.kt    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 app/src/main/java/org/android/go/sopt/util/Event.kt

diff --git a/app/src/main/java/org/android/go/sopt/util/Event.kt b/app/src/main/java/org/android/go/sopt/util/Event.kt
new file mode 100644
index 0000000..1306679
--- /dev/null
+++ b/app/src/main/java/org/android/go/sopt/util/Event.kt
@@ -0,0 +1,25 @@
+package org.android.go.sopt.util
+
+import androidx.lifecycle.Observer
+
+class Event<T>(private val content: T) {
+
+    private var hasBeenHandled = false
+
+    fun getContentIfNotHandled(): T? {
+        return if (hasBeenHandled) {
+            null
+        } else {
+            hasBeenHandled = true
+            content
+        }
+    }
+}
+
+class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> {
+    override fun onChanged(event: Event<T>) {
+        event?.getContentIfNotHandled()?.let {
+            onEventUnhandledContent(it)
+        }
+    }
+}