From 710449d7e5e96fae54630d918f6b3a983830172e Mon Sep 17 00:00:00 2001
From: gq <15933486098@qq.com>
Date: Thu, 15 May 2025 08:16:41 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B3=A8=E9=87=8A=E4=BA=86=E5=A4=84=E7=90=86?=
 =?UTF-8?q?=E9=94=AE=E7=9B=98=E6=8C=89=E4=B8=8B=E4=BA=8B=E4=BB=B6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/net/micode/notes/ui/NoteEditText.java   | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Notesmaster/app/src/main/java/net/micode/notes/ui/NoteEditText.java b/Notesmaster/app/src/main/java/net/micode/notes/ui/NoteEditText.java
index ded9ddb..69cd565 100644
--- a/Notesmaster/app/src/main/java/net/micode/notes/ui/NoteEditText.java
+++ b/Notesmaster/app/src/main/java/net/micode/notes/ui/NoteEditText.java
@@ -143,18 +143,28 @@ public class NoteEditText extends EditText {
 
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
+        // 处理键盘按下事件
         switch (keyCode) {
-            case KeyEvent.KEYCODE_ENTER:
+            case KeyEvent.KEYCODE_ENTER:  // 回车键处理
+                // 当存在文本变化监听器时，不消费回车键事件
+                // 以便监听器可以自定义回车键行为（如换行处理）
                 if (mOnTextViewChangeListener != null) {
-                    return false;
+                    return false;  // false表示允许事件继续传递
                 }
                 break;
-            case KeyEvent.KEYCODE_DEL:
+
+            case KeyEvent.KEYCODE_DEL:    // 删除键处理
+                // 记录删除前的光标起始位置
+                // 用于支持撤销操作或特殊删除逻辑
                 mSelectionStartBeforeDelete = getSelectionStart();
                 break;
+
             default:
+                // 其他按键不做特殊处理
                 break;
         }
+
+        // 未被处理的按键事件交由父类默认处理
         return super.onKeyDown(keyCode, event);
     }