blocks|key|1833179|text|它可能没有像您预期的那样工作，因为willBeginEditingRowAtIndexPath:是在编辑开始之前调用的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1833180|如果要在另一种方法中进行检查，则需要editing属性：|1833181|@property(nonatomic,+getter=isEditing)+BOOL+editing|code-block|syntax|javascript|1833182|如果您想在按下“编辑”按钮时执行某些操作，则需要实现setEditing方法：|1833183|+-+(void)setEditing:(BOOL)editing+animated:(BOOL)animated|1833184|您可以在UIViewController中找到它。(嗯，这是最有可能的地方；还有其他地方。)|1833185|Swift相应地使用以下代码：|BOLD|1833186|open+var+isEditing:+Bool+//+default+is+NO.+setting+is+not+animated.

open+func+setEditing(_+editing:+Bool,+animated:+Bool)|1833187|entityMap^0|H|V|0|I|7|0|0|0|0|4|G|0|0|5|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|16|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|17|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|S|3|T|5|6|7|1B|8|@$9|1C|A|1D|B|U]]|D|@]|E|$]]|$1|V|3|W|5|J|7|1E|8|@]|D|@]|E|$K|L]]|$1|X|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|Y|$]]

It is probably not working as you expect because <code>willBeginEditingRowAtIndexPath:</code> is called before the editing starts.

If you want to check while in another method you need the <code>editing</code> property:

<pre><code>@property(nonatomic, getter=isEditing) BOOL editing
</code></pre>

If you want to do something when the 'Edit' button is pressed you need to implement the setEditing method:

<pre><code> - (void)setEditing:(BOOL)editing animated:(BOOL)animated
</code></pre>

Which you'll find in <code>UIViewController</code>. (Well, that's the most likely place; there are others.)

Swift
Use below code accordingly:

<pre><code>open var isEditing: Bool // default is NO. setting is not animated.

open func setEditing(_ editing: Bool, animated: Bool)
</code></pre>

blocks|key|533610|text|当用户编辑单元格时，该方法会通知您，而不是将表置于编辑模式。进入编辑模式时，有一个方法调用，询问每个单元格是否可以编辑：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|533611|-+(BOOL)tableView:(UITableView+*)tableView+canEditRowAtIndexPath:(NSIndexPath+*)indexPath|code-block|syntax|javascript|533612|我不认为重写setEditing:animated:是有意义的，因为你必须子类化UITableView，这是额外的工作，也是你没有其他原因需要的类，更不用说它必须向控制器传达编辑已经打开的事实。|offset|length|style|CODE|533613|另一种选择是自己简单地添加编辑按钮-它是一个内置的UIBarButtonSystemItem，你可以添加它，然后让它调用你自己的方法，在这个方法中你做一些特定的事情，然后在UITableView本身上调用setEditing:animated:。|533614|编辑背后的想法是，当启用编辑时，每个单元格都被告知进入编辑模式，并被问及是否有任何特定的编辑控件应该应用。因此从理论上讲，除了更改单元格的外观之外，不需要检测进入编辑模式。当进入编辑模式时，您正在尝试做什么？|533615|entityMap^0|0|0|6|K|14|B|0|P|L|2E|B|2U|K|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]|$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|Z|8|@$I|10|J|11|K|L]|$I|12|J|13|K|L]|$I|14|J|15|K|L]]|9|@]|A|$]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$]]

That method tells you when a user is editing a Cell, not put the table into editing mode. There is a method called when editing mode is entered, to ask each cell if it can be edited:

<pre><code>- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
</code></pre>

I don't think overriding <code>setEditing:animated:</code> makes sense, since you would have to subclass <code>UITableView</code> which is extra work and a class you need for no other reason, not to mention it would have to communicate the fact that editing had been turned on back to the controller.

One other option is to simply add the Edit button yourself - it's a built in <code>UIBarButtonSystemItem</code>, you can add it and then have it call your own method in which you do something specific then call <code>setEditing:animated:</code> on the <code>UITableView</code> itself.

The idea behind editing is that when editing is enabled, each cell is told to go to edit mode, and as asked if there are any specific editing controls that should be applied. So in theory there's no need to detect entry into editing mode beyond changing the appearance of cells. What are you trying to do when editing mode is entered?

blocks|key|1941284|text|当子类化tableviewcontroller时(大多数人大部分时间都会这样做，因为你必须覆盖它的委托方法才能将数据放入其中……)你可以直接重写setEditing:animated:方法来获取编辑状态的变化。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1941285|-+(void)setEditing:(BOOL)editing+animated:(BOOL)animated+{
++++NSLog(@"Editing+%25i",+editing);
++++[super+setEditing:editing+animated:animated];
}|code-block|syntax|javascript|1941286|它将状态更改传递给超类，但允许您跳到中间并检测更改，或者根据需要更改它……|1941287|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

When subclassing a tableviewcontroller (what most people are going to be doing most of the time since you have to override it's delegate methods just to put data into it...) you can just override the setEditing:animated: method to grab editing state changes.

<pre><code>- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
 NSLog(@"Editing %i", editing);
 [super setEditing:editing animated:animated];
}
</code></pre>

That passes the state change along to the super class, but lets you jump in the middle and detect the change, or alter it if you wanted...

blocks|key|533690|text|Kendall的答案是有效的，我是用下面的方法做的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|533691|//+Override+to+support+conditional+editing+of+the+table+view.
-+(BOOL)tableView:(UITableView+*)tableView+canEditRowAtIndexPath:(NSIndexPath+*)indexPath+{
++++//+Return+NO+if+you+do+not+want+the+specified+item+to+be+editable.
++++NSLog(@"Can+edit+%25d",+tableView.editing);
++++if+(tableView.editing+==+1)+{
++++++++[self.editButtonItem+setTitle:EDIT_BUTTON_TITLE];
++++}else+{
++++++++[self.editButtonItem+setTitle:DONE_BUTTON_TITLE];
++++}

++++return+YES;
}|code-block|syntax|javascript|533692|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Kendall 's answer works. I did it in following way.

<pre><code>// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
 // Return NO if you do not want the specified item to be editable.
 NSLog(@"Can edit %d", tableView.editing);
 if (tableView.editing == 1) {
 [self.editButtonItem setTitle:EDIT_BUTTON_TITLE];
 }else {
 [self.editButtonItem setTitle:DONE_BUTTON_TITLE];
 }

 return YES;
}
</code></pre>

blocks|key|1833265|text|集合setEditing:animated:+examples不适用于我(在iOS+6.1上)检测进入和退出删除确认模式时发生的状态变化。setEditing:animated:似乎只在表格视图进入编辑模式时调用一次，而不是在单元格的状态改变时调用。经过一些调试器的乐趣，我找到了一种检测单元状态变化的方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1833266|我的用例与你的不同。我只是想在显示“删除”按钮时隐藏标签，这样当“删除”按钮滑入时，其他单元格内容就不会与它重叠。(我使用的是UITableViewCellStyleValue2，左边是蓝色标签，右边是黑色标签。)|1833267|(在您的UITableViewCell子类中)|1833268|-+(void)willTransitionToState:(UITableViewCellStateMask)state+{
++++[super+willTransitionToState:state];
++++if+(state+&+UITableViewCellStateShowingDeleteConfirmationMask)+{
++++++++//+showing+delete+button
++++++++[self.textLabel+setAlpha:0.0f];+//+<--+I+just+wanted+to+hide+the+label
++++}
}

-+(void)didTransitionToState:(UITableViewCellStateMask)state+{
++++if+(!(state+&+UITableViewCellStateShowingDeleteConfirmationMask))+{
++++++++//+not+showing+delete+button
++++++++[self.textLabel+setAlpha:1.0f];+//+<--+show+the+label
++++}
}|code-block|syntax|javascript|1833269|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The setEditing:animated: examples didn't work for me (on iOS 6.1) to detect the state changes that occur when you enter and exit delete confirmation mode. It seems that setEditing:animated: is only called once, when the table view goes into edit mode, but not on state changes of the cells. After some debugger fun, I arrived at a method to detect the cell state change.

My use case is different from yours. I just wanted to hide the label when the delete button is showing so that the other cell content doesn't overlap it when the Delete button slides in. (I'm using UITableViewCellStyleValue2, the one with the blue label on the left and black label on the right.)

(In your UITableViewCell subclass)

<pre><code>- (void)willTransitionToState:(UITableViewCellStateMask)state {
 [super willTransitionToState:state];
 if (state &amp; UITableViewCellStateShowingDeleteConfirmationMask) {
 // showing delete button
 [self.textLabel setAlpha:0.0f]; // &lt;-- I just wanted to hide the label
 }
}

- (void)didTransitionToState:(UITableViewCellStateMask)state {
 if (!(state &amp; UITableViewCellStateShowingDeleteConfirmationMask)) {
 // not showing delete button
 [self.textLabel setAlpha:1.0f]; // &lt;-- show the label
 }
}
</code></pre>

For my iPhone app, I have an editable (for delete) table view. I'd like to be able to detect that the user has clicked the "Edit" button. See this image: <a href="http://grab.by/It0" rel="noreferrer">http://grab.by/It0</a>

From the docs, it looked like if I implemented :

<pre><code>- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
</code></pre>

then I could detect it (although from the name of the method, I wouldn't think that). This proved not to work. 

Any ideas on detecting this? The reason I want to is I want to hook up a "Delete all" button in the upper left hand corner when in delete mode.

thanks

How to detect edit mode on iPhone UITableView

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

对于我的iPhone应用程序，我有一个可编辑(用于删除)的表视图。我希望能够检测到用户已经点击了“编辑”按钮。查看此图像：从文档中看，如果我实现了：- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath...

问如何在iPhone UITableView上检测编辑模式
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在iPhone UITableView上检测编辑模式EN