iOS tableview左滑右滑删除

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一、单按钮左滑动删除(IOS8之前)

只要实现了- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath;这个代理方法就拥有了滑动删除的功能

单按钮滑动删除方法一:

//滑动删除执行的代理方法

– (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath

{

    NSLog(@”点击左滑出现的Delete按钮执行的操作”);

    [_array  removeObjectAtIndex:indexPath.row];

    [self.tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];

}

//修改默认Delete按钮的文字

– (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath

{

    return@”删除”;

}

二、多按钮组左滑动删除(IOS8之后)

我们在使用一些应用的时候,在滑动一些联系人的某一行的时候,会出现删除、置顶、更多等等的按钮,在iOS8之前,我们都需要自己去实现。但是,到了iOS8,,只需要一个代理方法和一个类就搞定了

– (NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath

{    UITableViewRowAction *action = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleNormal title:@”关注”handler:^(UITableViewRowAction *_Nonnullaction, NSIndexPath *_NonnullindexPath) {

        NSLog(@”点击了删除”);

        // 1. 更新数据

        [DataArray removeObjectAtIndex:indexPath.row];

        // 2. 更新UI

        [tableView deleteRowsAtIndexPaths:@[indexPath]withRowAnimation:UITableViewRowAnimationAutomatic];

    }];

    action.backgroundColor=[UIColor greenColor];

    UITableViewRowAction *action1 = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDestructive title:@”删除”handler:^(UITableViewRowAction *_Nonnullaction, NSIndexPath *_NonnullindexPath) {

    }];

    UITableViewRowAction *action2 = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@”置顶”handler:^(UITableViewRowAction *_Nonnullaction, NSIndexPath *_NonnullindexPath) {

    }];

    return@[action1,action,action2];

}

单按钮左滑动删除只需要返回一个元素的数组就行了,因此单按钮滑动删除方法二就来了

单按钮滑动删除方法二:-(NSArray<UITableViewRowAction*>*)tableView:(UITableView*)tableView editActionsForRowAtIndexPath:(NSIndexPath*)indexPath{UITableViewRowAction*action=[UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleNormal title:@”关注”handler:^(UITableViewRowAction*_Nonnull action,NSIndexPath*_Nonnull indexPath){NSLog(@”点击了关注”);}];action.backgroundColor=[UIColor greenColor];return@[action];}

三、IOS11新增的滑动删除

IOS11新增了两个代理方法,可以给这些按钮添加图片了。如果实现了新增的Swipe actions的代理方法将会取代(tableView: editActionsForRowAtIndexPath:)

1.向左滑动在右边显示

-(UISwipeActionsConfiguration*)tableView:(UITableView*)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath*)indexPath

使用说明:

– (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath{

    /* UIContextualActionStyle有两种类型:

    UIContextualActionStyleNormal,//置顶、删除、已读都可以使用该类型

    UIContextualActionStyleDestructive//删除类型可使用,从左到右一直滑cell,不用点击删除按钮就可以直接执行删除操作

    */

    //1.创建UIContextualAction对象

    UIContextualAction *deleteRowAction = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleDestructive title:@”delete”handler:^(UIContextualAction *_Nonnullaction,__kindofUIView *_NonnullsourceView,void(^_NonnullcompletionHandler)(BOOL)) {

        //[self.titleArr removeObjectAtIndex:indexPath.row];

        completionHandler (YES);

    }];

    //2.给滑动按钮添加背景、图片

    deleteRowAction.image = [UIImage imageNamed:@”icon_del”];

    deleteRowAction.backgroundColor = [UIColor blueColor];

   //3.返回滑动按钮

    UISwipeActionsConfiguration *config = [UISwipeActionsConfiguration configurationWithActions:@[deleteRowAction]];

    returnconfig;

}

2、向右滑动在左边显示(新增的右滑功能,以前都是左滑)

左滑是系统删除按钮,右滑是自定义的滑动按钮

– (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView leadingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath{

    UIContextualAction *deleteRowAction = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleNormal title:@”撤销”handler:^(UIContextualAction *_Nonnullaction,__kindofUIView *_NonnullsourceView,void(^_NonnullcompletionHandler)(BOOL)) {

        //[self.titleArr removeObjectAtIndex:indexPath.row];

        completionHandler (YES);

    }];

    deleteRowAction.image = [UIImage imageNamed:@”icon_del”];

    deleteRowAction.backgroundColor = [UIColor blueColor];

    UIContextualAction *RowAction1 = [UIContextualAction contextualActionWithStyle:  UIContextualActionStyleNormal title:@”关注”handler:^(UIContextualAction *_Nonnullaction,__kindofUIView *_NonnullsourceView,void(^_NonnullcompletionHandler)(BOOL)) {

        //[self.titleArr removeObjectAtIndex:indexPath.row];

        completionHandler (YES);

    }];

   RowAction1.image = [UIImage imageNamed:@”icon_del”];

    RowAction1.backgroundColor = [UIColor greenColor];

    UISwipeActionsConfiguration *config = [UISwipeActionsConfiguration configurationWithActions:@[deleteRowAction,RowAction1]];

    returnconfig;

    }

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