From b0c5e94249b8666af42fbe42ce457487f3450b4a Mon Sep 17 00:00:00 2001
From: leaderli <429243408@qq.com>
Date: Wed, 30 Oct 2024 19:20:35 +0800
Subject: [PATCH] =?UTF-8?q?LiEventBus=E5=A2=9E=E5=8A=A0=E8=87=AA=E5=AE=9A?=
 =?UTF-8?q?=E4=B9=89=E6=B3=A8=E5=86=8C=E4=BA=8B=E4=BB=B6=E3=80=81=E5=8D=B8?=
 =?UTF-8?q?=E8=BD=BD=E4=BA=8B=E4=BB=B6?=
MIME-Version: 1.0
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---
 .../litool/core/event/ILiEventListener.java   | 17 ++++++++++++++
 .../litool/core/event/LiEventBus.java         |  2 ++
 .../litool/core/event/LiEventBusTest.java     | 22 +++++++++++++++++++
 3 files changed, 41 insertions(+)

diff --git a/litool-core/src/main/java/io/leaderli/litool/core/event/ILiEventListener.java b/litool-core/src/main/java/io/leaderli/litool/core/event/ILiEventListener.java
index 6a108d83..d4c5d485 100644
--- a/litool-core/src/main/java/io/leaderli/litool/core/event/ILiEventListener.java
+++ b/litool-core/src/main/java/io/leaderli/litool/core/event/ILiEventListener.java
@@ -23,6 +23,23 @@
 @FunctionalInterface
 public interface ILiEventListener<E extends LiEventObject<S>, S> extends ComponentType<E>, OnError {
 
+    /**
+     * 当注册监听器时触发
+     * {@link LiEventBus#registerListener(ILiEventListener)}
+     */
+    default void onRegister() {
+
+    }
+
+    /**
+     * 当卸载监听器时触发
+     * {@link LiEventBus#unRegisterListener(ILiEventListener)}
+     */
+    default void onUnRegister() {
+
+    }
+
+
     /**
      * 监听事件。当 {@link LiEventBus#push(LiEventObject)} 推送事件时，可以监听该事件的监听器会接收到该事件。
      *
diff --git a/litool-core/src/main/java/io/leaderli/litool/core/event/LiEventBus.java b/litool-core/src/main/java/io/leaderli/litool/core/event/LiEventBus.java
index 4a7769c3..8b8bea88 100644
--- a/litool-core/src/main/java/io/leaderli/litool/core/event/LiEventBus.java
+++ b/litool-core/src/main/java/io/leaderli/litool/core/event/LiEventBus.java
@@ -24,6 +24,7 @@ public class LiEventBus implements LiEventBusBehavior {
      */
     public <E extends LiEventObject<S>, S> void registerListener(ILiEventListener<E, S> listener) {
         liEventMap.put(listener.componentType(), listener);
+        listener.onRegister();
     }
 
     /**
@@ -34,6 +35,7 @@ public <E extends LiEventObject<S>, S> void registerListener(ILiEventListener<E,
     @Override
     public <E extends LiEventObject<S>, S> void unRegisterListener(ILiEventListener<E, S> listener) {
         liEventMap.remove(listener);
+        listener.onUnRegister();
     }
 
     /**
diff --git a/litool-core/src/test/java/io/leaderli/litool/core/event/LiEventBusTest.java b/litool-core/src/test/java/io/leaderli/litool/core/event/LiEventBusTest.java
index d4ef6879..d092bb93 100644
--- a/litool-core/src/test/java/io/leaderli/litool/core/event/LiEventBusTest.java
+++ b/litool-core/src/test/java/io/leaderli/litool/core/event/LiEventBusTest.java
@@ -38,6 +38,28 @@ void getPublisher() {
         Assertions.assertDoesNotThrow(() -> {
             eventBus.push(new TestStringLiEventObject("456"));
         });
+        LiBox<Integer> count = LiBox.of(0);
+        ILiEventListener<TestStringLiEventObject, String> listener = new ILiEventListener<TestStringLiEventObject, String>() {
+            @Override
+            public void onRegister() {
+                count.value(1);
+            }
+
+            @Override
+            public void onUnRegister() {
+                count.value(2);
+            }
+
+            @Override
+            public void listen(String source) {
+
+            }
+        };
+        eventBus.registerListener(listener);
+        Assertions.assertEquals(1, count.value());
+        eventBus.unRegisterListener(listener);
+        Assertions.assertEquals(2, count.value());
+
     }
 
     @Test