滑动行或单击编辑按钮时更改 UITableViewCell 中默认红色删除按钮的颜色 [英] Change the color of default red color delete button in UITableViewCell when swiping rows or click on edit button

问题描述

我想在单击编辑按钮或滑动 UITableView 行时更改 UITableViewCell 的减号按钮和删除按钮的颜色.到目前为止，我已经实现了这段代码:

I wanted to change the color of minus button and delete button of UITableViewCell when click on edit button or swiping UITableView rows. I have implemented this code so far :

-(IBAction)doEdit:(id)sender
{

    [[self keyWordsTable] setEditing:YES animated:NO];
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {

}

推荐答案

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iOS 8 和 9(这篇文章的道具)

注意:如果您正在使用现有的 iOS 7 项目，则需要将目标更新到 iOS 8 才能获得此功能.还要记得设置 UITableviewDelegate.

Note: If you are working with an existing iOS 7 project, you'll need to update the target to iOS 8 to get this functionality. Also remember to set the UITableviewDelegate.

现在所有的魔法都发生在这里(你想要多少按钮都可以！！！！):

All the magic now happens here (as many buttons as you want too!!!!):

 -(NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
 UITableViewRowAction *button = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 1" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
    {
        NSLog(@"Action to perform with Button 1");
    }];
    button.backgroundColor = [UIColor greenColor]; //arbitrary color
    UITableViewRowAction *button2 = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Button 2" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                    {
                                        NSLog(@"Action to perform with Button2!");
                                    }];
    button2.backgroundColor = [UIColor blueColor]; //arbitrary color

    return @[button, button2];
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
// you need to implement this method too or nothing will work:

}
 - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
    {
        return YES;
    }

<小时><小时>

(iOS 7)

**activate the delete button on swipe**

// make sure you have the following methods in the uitableviewcontroller

    - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
    {
        return YES;
    }
    - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
    {
        NSLog(@"You hit the delete button.");
    }

设置自定义文本标签而不是删除.

-(NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return @"Your Label";
}

为按钮第 1 部分设置自定义颜色 - 警告，这在技术上涉及对私有 Apple API 的探查.但是，不会阻止您使用作为 UIKIT 一部分的公共方法搜索来修改子视图.

创建一个 uitableviewcell 类(另见 https://stackoverflow.com/a/22350817/1758337)>

Create a uitableviewcell class (see also https://stackoverflow.com/a/22350817/1758337 )

- (void)layoutSubviews
{
    [super layoutSubviews];
    for (UIView *subview in self.subviews) {
        //iterate through subviews until you find the right one...
        for(UIView *subview2 in subview.subviews){
            if ([NSStringFromClass([subview2 class]) isEqualToString:@"UITableViewCellDeleteConfirmationView"]) {
                //your color
                ((UIView*)[subview2.subviews firstObject]).backgroundColor=[UIColor blueColor];
            }
        }
    }    
}

另一个注意事项:不能保证这种方法在未来的更新中有效.另请注意，提及或使用私有 UITableViewCellDeleteConfirmationView 类可能会导致 AppStore 被拒绝.

Another note: there's no guarantee this approach will work in future updates. Also beware that mentioning or using the private UITableViewCellDeleteConfirmationView class may lead to AppStore rejection.

为按钮部分 2 设置自定义颜色

回到你的 uitableviewcontroller

back in your uitableviewcontroller

- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
{
    [YourTableView reloadData];
}

(直到下次在 tablecell 上调用 layoutSubviews 时才会调用替代颜色，因此我们通过重新加载所有内容来确保发生这种情况.)

(The alternate color won't be called until the next time layoutSubviews is called on the tablecell, so we ensure this happens by reloading everything.)

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