From eb0e98b04cd490cd9c1eb8aff86aee037e16e106 Mon Sep 17 00:00:00 2001
From: XHY <xionghuayu@dcloud.io>
Date: Fri, 13 Sep 2024 16:28:36 +0800
Subject: [PATCH] =?UTF-8?q?=E8=B0=83=E6=95=B4=20native-view=20=E7=A4=BA?=
 =?UTF-8?q?=E4=BE=8B?=
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---
 .../native-button/utssdk/app-ios/index.uts    | 48 ++++++++++---------
 .../utssdk/app-ios/index.uts                  |  2 +-
 2 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/uni_modules/native-button/utssdk/app-ios/index.uts b/uni_modules/native-button/utssdk/app-ios/index.uts
index 7ee6499f..ee8e0250 100644
--- a/uni_modules/native-button/utssdk/app-ios/index.uts
+++ b/uni_modules/native-button/utssdk/app-ios/index.uts
@@ -1,46 +1,48 @@
-import { UIButton, UIControl,ButtonType } from "UIKit"
+import { UIButton, UIControl } from "UIKit"
 
 export class NativeButton {
 
 	element : UniNativeViewElement;
-	button : UIButton;
+	button : UIButton | null;
 
-	constructor(element : UniNativeViewElement) {
+	constructor(element : UniNativeViewElement) {
+    // 接收组件传递过来的UniNativeViewElement
 		this.element = element;
-		this.button = new UIButton(type=UIButton.ButtonType.system)
-		super.init()
-
-		// 在 swift target-action 对应的方法需要以OC的方式来调用，那么OC语言中用Selector来表示一个方法的名称（又称方法选择器），创建一个Selector可以使用 Selector("functionName") 的方式。
-		const method = Selector("buttonClickAction")
-		// button 添加点击回调
-		button.addTarget(this, action = method, for = UIControl.Event.touchUpInside)
-
-		this.bind();
+		super.init()
+		this.bindView();
 	}
 
 	// element 绑定原生view
-	bind() {
-		this.element.bindIOSView(this.button);
+	bindView() {
+    // 初始化原生 UIButton
+    this.button = new UIButton(type=UIButton.ButtonType.system)
+    // 构建方法选择器
+    const method = Selector("buttonClickAction")
+    // button 绑定点击回调方法
+    button?.addTarget(this, action = method, for = UIControl.Event.touchUpInside)
+    // UniNativeViewElement 绑定原生 view
+		this.element.bindIOSView(this.button!);
 	}
-
-	// 更新button文字
-	updateText(text : string) {
-		this.button.setTitle(text, for = UIControl.State.normal)
+
+	updateText(text : string) {
+    // 更新 button 显示文字
+		this.button?.setTitle(text, for = UIControl.State.normal)
 	}
 
 	/**
 	 * 按钮点击回调方法
 	 * 在 swift 中，所有target-action (例如按钮的点击事件，NotificationCenter 的通知事件等)对应的 action 函数前面都要使用 @objc 进行标记。
 	 */
-	@objc buttonClickAction() {
-		// 发送事件
+	@objc buttonClickAction() {
+    //构建自定义 UniNativeViewEvent 对象
 		let event = new UniNativeViewEvent("customClick")
+    //触发自定义事件
 		this.element.dispatchEvent(event)
 	}
 
-
-	destroy() {
-		UTSiOS.destroyInstance(self)
+	destroy() {
+    // 释放 UTS 实例对象，避免内存泄露
+		UTSiOS.destroyInstance(this)
 	}
 }
 
diff --git a/uni_modules/native-time-picker/utssdk/app-ios/index.uts b/uni_modules/native-time-picker/utssdk/app-ios/index.uts
index 1c4dcb90..90abdc15 100644
--- a/uni_modules/native-time-picker/utssdk/app-ios/index.uts
+++ b/uni_modules/native-time-picker/utssdk/app-ios/index.uts
@@ -80,6 +80,6 @@ export class NativeTimePicker {
 	}
 
 	destroy() {
-		UTSiOS.destroyInstance(self)
+		UTSiOS.destroyInstance(this)
 	}
 }
-- 
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