ios – TableView CheckMarks

我想在选择字典数据数组时将CheckMark放在tableview中.

例如: – 数组包含10个模型名称(它是字典),它包含子模型

我的问题是,当我选择Submodel时,ModelName会自动获得CheckMark.
现在我把CheckMarks用于不同的型号和sub模型,但我们如何根据SubModel放置复选标记.

我的cellForRow方法

UITableViewCell *cell;
cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
if (!cell)
{
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"Cell"];
}
UILabel *nameLbl = (UILabel*) [cell.contentView viewWithTag:11];
UILabel *code = (UILabel*) [cell.contentView viewWithTag:12];
UIButton *button = (UIButton*) [cell.contentView viewWithTag:13];
NSInteger index = indexPath.row;
NSDictionary *dictParent = [_data objectAtIndex:indexPath.section];
NSDictionary *dictItem = dictParent;
if (indexPath.row > 0)
{
    // If its not the first row in the section,assume the row is a child row.
    NSArray *arrChildren = [dictParent objectForKey:@"ChildProductModels"];
    // Get child row info
    dictItem = [arrChildren objectAtIndex:indexPath.row ];
}
    nameLbl.text = [dictItem objectForKey:@"Name"];
    code.text = [dictItem objectForKey:@"Code"];
// To display checkmark for selected value
    if (_selectedarray.count == _rowdata.count)
    {
        imagebutton.hidden=NO;
        [headerArray removeAllObjects];
        [headerArray addObject:@"1"];
        UIImage *btnImage = [UIImage imageNamed:@"ic_floating_done_@1x"];
        [button setImage:btnImage forState:UIControlStateNormal];
        [button setBackgroundColor:[UIColor colorWithRed:0/255.0 green:255/255.0 blue:255/255.0 alpha:1.0]];
    }
    else if ([_selectedarray containsObject:[_rowdata objectAtIndex:index]] )
    {
        imagebutton.hidden =NO;
        [headerArray removeAllObjects];
        [headerArray addObject:@"1"];
        UIImage *btnImage = [UIImage imageNamed:@"ic_floating_done_@1x"];
        [button setImage:btnImage forState:UIControlStateNormal];
        [button setBackgroundColor:[UIColor colorWithRed:0/255.0 green:255/255.0 blue:255/255.0 alpha:1.0]];
    }
    else
    {
        imagebutton.hidden=YES;
        cell.accessoryType=UITableViewCellAccessoryNone;
        UIImage *btnImage = [UIImage imageNamed:@""];
        [button setImage:btnImage forState:UIControlStateNormal];
        [button setBackgroundColor:[UIColor whiteColor]];
    }

从上面的代码我可以为多个选择添加复选标记.请给我的问题一些想法(OR)示例

(
{
 ChildProductModels =     (
        {
    Code = "LB3/7-002";
    Name = "With transport apron 4.5 M";
    ParentChildType = C;
    ParentID = PMD000001;
    ProductID = PRD000004;
    ProductModelID = PMD000003;
},{
    Code = "LB3/7-003";
    Name = "With Magnetic Roller";
    ParentChildType = C;
    ParentID = PMD000001;
    ProductID = PRD000004;
    ProductModelID = PMD000004;
  }
);
Code = "LB3/7";
Name = "Mixing Bale Opener LB3/7";
ParentChildType = P;
ParentID = "<null>";
ProductID = PRD000004;
ProductModelID = PMD000001;
},{
   ChildProductModels =     (
        {
    Code = "LB7/4-001";
    Name = "With Beater";
    ParentChildType = C;
    ParentID = PMD000005;
    ProductID = PRD000004;
    ProductModelID = PMD000006;
  }
  );
  Code = "LB7/4";
 Name = "UNIMIX MODEL LB7/4";
 ParentChildType = P;
 ParentID = "<null>";
  ProductID = PRD000004;
 ProductModelID = PMD000005;
}
)

上面我把我的一系列词典

- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:   (NSInteger)section
{
Header *headerView = [tableView dequeueReusableCellWithIdentifier:@"HeaderView"];
UILabel *name = (UILabel*) [headerView.contentView viewWithTag:2];
UILabel *code = (UILabel*) [headerView.contentView viewWithTag:4];
name.text = [_data[section] valueForKey:@"Name"] ;
code.text=[_data[section] valueForKey:@"Code"] ;
imagebutton=(UIButton*)[headerView.contentView viewWithTag:3];
UIImage *btnImage = [UIImage imageNamed:@""];
[imagebutton setImage:btnImage forState:UIControlStateNormal];
[imagebutton setBackgroundColor:[UIColor whiteColor]];
    if(headerArray.count>0)
    {
        if([headerArray containsObject:@"0"])
        {
            UIImage *btnImage = [UIImage imageNamed:@""];
            [imagebutton setImage:btnImage forState:UIControlStateNormal];
            [imagebutton setBackgroundColor:[UIColor whiteColor]];
        }
        else
        {
            UIImage *btnImage = [UIImage imageNamed:@"ic_floating_done_@1x"];
            [imagebutton setImage:btnImage forState:UIControlStateNormal];
            [imagebutton setBackgroundColor:[UIColor colorWithRed:0/255.0 green:255/255.0 blue:255/255.0 alpha:1.0]];
        }
}
UIButton *btn=(UIButton*)[headerView.contentView viewWithTag:1];
[btn addTarget: self
        action: @selector(buttonClicked:)
forControlEvents: UIControlEventTouchUpInside];
return headerView;
}

-(void)buttonClicked:(id)sender
{
if(imagebutton.currentImage == [UIImage imageNamed:@""] )
{
    UIImage *btnImage = [UIImage imageNamed:@"ic_floating_done_@1x"];
    [imagebutton setImage:btnImage forState:UIControlStateNormal];
    [imagebutton setBackgroundColor:[UIColor colorWithRed:0/255.0 green:255/255.0 blue:255/255.0 alpha:1.0]];

}
else
{
    UIImage *btnImage = [UIImage imageNamed:@""];
    [imagebutton setImage:btnImage forState:UIControlStateNormal];
    [imagebutton setBackgroundColor:[UIColor whiteColor]];
}
}

In above My viewForHeader method

My TableviewdidSelect Method

selectedIndex = indexPath.row;
NSNumber *num=[NSNumber numberWithInteger:indexPath.section];
    if (!_selectedarray)
    {
        imagebutton.hidden=YES;
        [headerArray addObject:@"0"];
        _selectedarray = [[NSMutableArray alloc] init];
    }
    if(![_selectedarray containsObject:[_rowdata objectAtIndex:selectedIndex]])
    {
        imagebutton.hidden=NO;
        [headerArray removeAllObjects];
        [headerArray addObject:@"1"];
        [_selectedarray addObject:[_rowdata objectAtIndex:selectedIndex]];
        [dataArray addObject:[_rowdata objectAtIndex:selectedIndex]];
        [selectedSection addObject:num];
    }
    else
    {
        imagebutton.hidden=YES;
        [headerArray addObject:@"0"];
        [_selectedarray removeObject:[_rowdata objectAtIndex:selectedIndex]];
        [dataArray removeObject:[_rowdata objectAtIndex:selectedIndex]];

    }
[tableView reloadData];

解决方法

我利用“tag”属性轻松访问TableView中的Section标头.

像这样的东西:

- (void)loadData {
    myData = @[
               @{
                   @"Code":@"LB3/7",@"Name":@"Mixing Bale Opener LB3/7",@"ParentChildType":@"P",@"ParentID":[NSNull null],@"ProductID":@"PRD000004",@"ProductModelID":@"PMD000001",@"ChildProductModels":@[
                           @{
                               @"Code":@"LB3/7-002",@"Name":@"With transport apron 4.5 M",@"ParentChildType":@"C",@"ParentID":@"PMD000001",@"ProductModelID":@"PMD000003"
                               },@{
                               @"Code":@"LB3/7-003",@"Name":@"With Magnetic Roller",@"ProductModelID":@"PMD000004"
                               }
                           ]
                   },@{
                   @"Code":@"LB7/4",@"Name":@"UNIMIX MODEL LB7/4",@"ProductModelID":@"PMD000005",@"ChildProductModels":@[
                           @{
                               @"Code":@"LB7/4-001",@"Name":@"With Beater",@"ParentID":@"PMD000005",@"ProductModelID":@"PMD000006"
                               }
                           ]
                   }
               ];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    [self loadData];
    arrSelectedRows = [NSMutableArray new];

    myTableView = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStyleGrouped];
    myTableView.dataSource = self;
    myTableView.delegate = self;
    [self.view addSubview: myTableView];
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
    NSDictionary *dictParent = [myData objectAtIndex:section];

    // Create section header (replace with custom UIView)
    UILabel *lblSectionHeader = [UILabel new];
    lblSectionHeader.tag = section + 100; // Set tag,so we can access it later
    lblSectionHeader.text = [dictParent objectForKey:@"Name"];
    return lblSectionHeader;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return myData.count;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    NSDictionary *dictParent = [myData objectAtIndex:section];
    NSArray *arrChildren = [dictParent objectForKey:@"ChildProductModels"];
    return arrChildren.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cellId"];
    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:@"cellId"];
        [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
    }

    // Get the parent item
    NSDictionary *dictParent = [myData objectAtIndex:indexPath.section];

    // Get children
    NSArray *arrChildren = [dictParent objectForKey:@"ChildProductModels"];

    // Get child row info
    NSDictionary *dictItem = [arrChildren objectAtIndex:indexPath.row];

    cell.textLabel.text = [dictItem objectForKey:@"Name"];
    cell.detailTextLabel.text = [dictItem objectForKey:@"Code"];

    // Make sure accessory type is set when the rows are populated
    if ([arrSelectedRows containsObject:indexPath]) {
        [cell setAccessoryType:UITableViewCellAccessoryCheckmark];
    } else {
        [cell setAccessoryType:UITableViewCellAccessoryNone];
    }
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

    if ([arrSelectedRows containsObject:indexPath]) {
        // If the selected row was already selected,deselect it
        [arrSelectedRows removeObject:indexPath];
        [tableView deselectRowAtIndexPath:indexPath animated:YES];
        [cell setAccessoryType:UITableViewCellAccessoryNone];

        // Check if all children are deselected
        NSInteger numRowsInSection = [tableView numberOfRowsInSection:indexPath.section];
        BOOL areChildrenDeselected = true;
        for (NSInteger i = 0; i < numRowsInSection; i++) {
            NSIndexPath *childIndexPath = [NSIndexPath indexPathForRow:i inSection:indexPath.section];
            if ([arrSelectedRows containsObject:childIndexPath]) {
                areChildrenDeselected = false;
            }
        }

        // Get the section header
        UILabel *lblSectionHeader = (UILabel *)[tableView viewWithTag: 100 + indexPath.section];
        if (areChildrenDeselected) {
            lblSectionHeader.textColor = [UIColor blackColor];
        } else {
            lblSectionHeader.textColor = [UIColor blueColor];
        }

    } else {
        // If the selected row wasnt selected,select it
        [tableView selectRowAtIndexPath:indexPath animated:YES scrollPosition:UITableViewScrollPositionNone];
        [arrSelectedRows addObject:indexPath];
        [cell setAccessoryType:UITableViewCellAccessoryCheckmark];

        // Get section header
        UILabel *lblSectionHeader = (UILabel *)[tableView viewWithTag: 100 + indexPath.section];
        lblSectionHeader.textColor = [UIColor blueColor];
    }
}

…导致如下所示的内容,其中父/节标题在选择子节点时自动设置为蓝色.

Section header turns blue when a child is selected

版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。

相关推荐


当我们远离最新的 iOS 16 更新版本时,我们听到了困扰 Apple 最新软件的错误和性能问题。
欧版/美版 特别说一下,美版选错了 可能会永久丧失4G,不过只有5%的概率会遇到选择运营商界面且部分必须连接到iTunes才可以激活
一般在接外包的时候, 通常第三方需要安装你的app进行测试(这时候你的app肯定是还没传到app store之前)。
前言为了让更多的人永远记住12月13日,各大厂都在这一天将应用变灰了。那么接下来我们看一下Flutter是如何实现的。Flutter中实现整个App变为灰色在Flutter中实现整个App变为灰色是非常简单的,只需要在最外层的控件上包裹ColorFiltered,用法如下:ColorFiltered(颜色过滤器)看名字就知道是增加颜色滤镜效果的,ColorFiltered( colorFilter:ColorFilter.mode(Colors.grey, BlendMode.
flutter升级/版本切换
(1)在C++11标准时,open函数的文件路径可以传char指针也可以传string指针,而在C++98标准,open函数的文件路径只能传char指针;(2)open函数的第二个参数是打开文件的模式,从函数定义可以看出,如果调用open函数时省略mode模式参数,则默认按照可读可写(ios_base:in | ios_base::out)的方式打开;(3)打开文件时的mode的模式是从内存的角度来定义的,比如:in表示可读,就是从文件读数据往内存读写;out表示可写,就是把内存数据写到文件中;
文章目录方法一:分别将图片和文字置灰UIImage转成灰度图UIColor转成灰度颜色方法二:给App整体添加灰色滤镜参考App页面置灰,本质是将彩色图像转换为灰度图像,本文提供两种方法实现,一种是App整体置灰,一种是单个页面置灰,可结合具体的业务场景使用。方法一:分别将图片和文字置灰一般情况下,App页面的颜色深度是24bit,也就是RGB各8bit;如果算上Alpha通道的话就是32bit,RGBA(或者ARGB)各8bit。灰度图像的颜色深度是8bit,这8bit表示的颜色不是彩色,而是256
领导让调研下黑(灰)白化实现方案,自己调研了两天,根据网上资料,做下记录只是学习过程中的记录,还是写作者牛逼
让学前端不再害怕英语单词(二),通过本文,可以对css,js和es6的单词进行了在逻辑上和联想上的记忆,让初学者更快的上手前端代码
用Python送你一颗跳动的爱心
在uni-app项目中实现人脸识别,既使用uni-app中的live-pusher开启摄像头,创建直播推流。通过快照截取和压缩图片,以base64格式发往后端。
商户APP调用微信提供的SDK调用微信支付模块,商户APP会跳转到微信中完成支付,支付完后跳回到商户APP内,最后展示支付结果。CSDN前端领域优质创作者,资深前端开发工程师,专注前端开发,在CSDN总结工作中遇到的问题或者问题解决方法以及对新技术的分享,欢迎咨询交流,共同学习。),验证通过打开选择支付方式弹窗页面,选择微信支付或者支付宝支付;4.可取消支付,放弃支付会返回会员页面,页面提示支付取消;2.判断支付方式,如果是1,则是微信支付方式。1.判断是否在微信内支付,需要在微信外支付。
Mac命令行修改ipa并重新签名打包
首先在 iOS 设备中打开开发者模式。位于:设置 - 隐私&安全 - 开发者模式(需重启)
一 现象导入MBProgressHUD显示信息时,出现如下异常现象Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_MBProgressHUD", referenced from: objc-class-ref in ViewController.old: symbol(s) not found for architecture x86_64clang: error: linker command failed wit
Profiles >> 加号添加 >> Distribution >> "App Store" >> 选择 2.1 创建的App ID >> 选择绑定 2.3 的发布证书(.cer)>> 输入描述文件名称 >> Generate 生成描述文件 >> Download。Certificates >> 加号添加 >> "App Store and Ad Hoc" >> “Choose File...” >> 选择上一步生成的证书请求文件 >> Continue >> Download。
今天有需求,要实现的功能大致如下:在安卓和ios端实现分享功能可以分享链接,图片,文字,视频,文件,等欢迎大佬多多来给萌新指正,欢迎大家来共同探讨。如果各位看官觉得文章有点点帮助,跪求各位给点个“一键三连”,谢啦~声明:本博文章若非特殊注明皆为原创原文链接。