TableView CheckMarks
我想在选择字典数据数组时将CheckMarks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。 现在我将CheckMarks用于不同的模型和子模型，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 = ""; 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 = ""; ProductID = PRD000004; ProductModelID = PMD000005; } )
上面我放了一系列字典
- (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]]; } }
在上面我的viewForHeader方法
我的TableviewdidSelect方法
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];
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", @"ProductID":@"PRD000004", @"ProductModelID":@"PMD000003" }, @{ @"Code":@"LB3/7-003", @"Name":@"With Magnetic Roller", @"ParentChildType":@"C", @"ParentID":@"PMD000001", @"ProductID":@"PRD000004", @"ProductModelID":@"PMD000004" } ] }, @{ @"Code":@"LB7/4", @"Name":@"UNIMIX MODEL LB7/4", @"ParentChildType":@"P", @"ParentID":[NSNull null], @"ProductID":@"PRD000004", @"ProductModelID":@"PMD000005", @"ChildProductModels":@[ @{ @"Code":@"LB7/4-001", @"Name":@"With Beater", @"ParentChildType":@"C", @"ParentID":@"PMD000005", @"ProductID":@"PRD000004", @"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。
要放置复选标记，您可以在适当的位置使用UIImageView作为复选标记。
然后你可以维护一个选定单元格的数组，它将包含一个布尔值，isSelected（或者对你来说似乎不错的任何东西）。
然后，一旦用户选择了一个单元格，在didSelect委托方法中。 只需通过reloadRows：atIndexPath重新加载单元格。