Version: 3.4 Update

src/main/java/hae/utils/UIEnhancer.java

@@ -7,24 +7,40 @@ import java.awt.event.FocusListener;
 
 public class UIEnhancer {
     public static void setTextFieldPlaceholder(JTextField textField, String placeholderText) {
-        textField.setForeground(Color.GRAY);
-        textField.setText(placeholderText);
+        // 使用客户端属性来存储占位符文本和占位符状态
+        textField.putClientProperty("placeholderText", placeholderText);
+        textField.putClientProperty("isPlaceholder", true);
+
+        // 设置占位符文本和颜色
+        setPlaceholderText(textField);
+
         textField.addFocusListener(new FocusListener() {
             @Override
             public void focusGained(FocusEvent e) {
-                if (textField.getText().equals(placeholderText)) {
+                // 当获得焦点且文本是占位符时，清除文本并更改颜色
+                if ((boolean) textField.getClientProperty("isPlaceholder")) {
                     textField.setText("");
                     textField.setForeground(Color.BLACK);
+                    textField.putClientProperty("isPlaceholder", false);
                 }
             }
 
             @Override
             public void focusLost(FocusEvent e) {
+                // 当失去焦点且文本为空时，设置占位符文本和颜色
                 if (textField.getText().isEmpty()) {
-                    textField.setForeground(Color.GRAY);
-                    textField.setText(placeholderText);
+                    setPlaceholderText(textField);
                 }
             }
         });
     }
+
+    private static void setPlaceholderText(JTextField textField) {
+        String placeholderText = (String) textField.getClientProperty("placeholderText");
+        textField.setForeground(Color.GRAY);
+        textField.setText(placeholderText);
+        textField.putClientProperty("isPlaceholder", true);
+    }
+
+
 }