我使用了tableview(分组)。
所以我需要从 UITableviewSection 的每个部分中选择一行。
因此，我有表格 View 和一个提交按钮。因此，当我单击提交按钮时，我需要检查我是否从每个部分中选择了一行，如果没有，则显示警报为未选择节号。如何查看？
这是我的数据。
{
"data":[
{
"question": "Gender",
"options": ["Male","Female"]
},
{
"question": "How old are you",
"options": ["Under 18","Age 18 to 24","Age 25 to 40","Age 41 to 60","Above 60"]
},
{
"question": "I am filling the Questionnaire for?",
"options": ["Myself","Mychild","Partner","Others"]
}
]
}
问题模型:-
class QuestionListModel: NSObject {
var selected = false
var dataListArray33:[NH_OptionsModel] = []
var id:Int!
var question:String!
var buttontype:String!
var options:[String]?
var v:String?
var optionsModelArray:[OptionsModel] = []
init(dictionary :JSONDictionary) {
guard let question = dictionary["question"] as? String,
let typebutton = dictionary["button_type"] as? String,
let id = dictionary["id"] as? Int
else {
return
}
if let options = dictionary["options"] as? [String]{
print(options)
print(options)
for values in options{
print(values)
let optionmodel = OptionsModel(values: values)
self.optionsModelArray.append(optionmodel)
}
}
self.buttontype = typebutton
self.question = question
self.id = id
// print(self.dataListArray33)
}
}
选项型号:-
class OptionsModel: NSObject {
var isSelected:Bool? = false
var v:String?
var values:String?
init(values:String) {
self.values = values
print( self.values)
}
View 模型:-
func numberOfSections(tableView: UITableView) -> Int{
print((datasourceModel.dataListArray?.count)!)
return (datasourceModel.dataListArray?.count)!
}
func titleForHeaderInSection(atsection section: Int) -> NH_QuestionListModel {
return datasourceModel.dataListArray![section]
}
func numberOfRowsIn(section:Int) -> Int {
print( datasourceModel.dataListArray?[section].optionsModelArray.count ?? 0)
return datasourceModel.dataListArray?[section].optionsModelArray.count ?? 0
// return self.questionsModelArray?[section].optionsModelArray.count ?? 0
}
func datafordisplay(atindex indexPath: IndexPath) -> NH_OptionsModel{
print(datasourceModel.dataListArray![indexPath.section].optionsModelArray[indexPath.row])
return datasourceModel.dataListArray![indexPath.section].optionsModelArray[indexPath.row]
}
func question(answer:String) {
print(questions)
questions.append(answer)
print(questions )
}
func questionlist(answer:String) {
print( questionlist )
questionlist.append(answer)
print( questionlist )
}
func answer(answer:String) {
answers.append(answer)
print(answers)
}
最后是viewController:-
func numberOfSections(in tableView: UITableView) -> Int {
return questionViewModel.numberOfSections(tableView: tableView)
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let identifier = "HeaderCell"
var headercell: questionheader! = tableView.dequeueReusableCell(withIdentifier: identifier) as? questionheader
if headercell == nil {
tableView.register(UINib(nibName: "questionheader", bundle: nil), forCellReuseIdentifier: identifier)
headercell = tableView.dequeueReusableCell(withIdentifier: identifier) as? NH_questionheader
}
headercell.setReviewData(reviews:questionViewModel.titleForHeaderInSection(atsection:section))
return headercell
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 150
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return questionViewModel.numberOfRowsIn(section: section)
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let identifier = "Cell"
var cell: QuestionListCell! = tableView.dequeueReusableCell(withIdentifier: identifier) as? QuestionListCell
if cell == nil {
tableView.register(UINib(nibName: "QuestionListCell", bundle: nil), forCellReuseIdentifier: identifier)
cell = tableView.dequeueReusableCell(withIdentifier: identifier) as? NH_QuestionListCell
}
cell.contentView.backgroundColor = UIColor.clear
let questionsModel = questionViewModel.titleForHeaderInSection(atsection:indexPath.section)
print(questionsModel.buttontype)
questionViewModel.button = questionsModel.buttontype
cell.setOptions(Options1: questionViewModel.datafordisplay(atindex: indexPath))
print("Section \(indexPath.section), Row : \(indexPath.row)")
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath){
print("Section \(indexPath.section), Row : \(indexPath.row)")
let cell = tableview.cellForRow(at: indexPath) as? NH_QuestionListCell
let model = questionViewModel.datafordisplay(atindex: indexPath)
print(model.isSelected)
cell?.setOptions(OptionsSelected:questionViewModel.datafordisplay(atindex: indexPath))
print(model.isSelected)
questionViewModel.isselected = model.isSelected!
let section = indexPath.section
let index = indexPath.row
print(section)
print(index)
if !questionViewModel.selectedIndexPaths.contains(indexPath) {
questionViewModel.selectedIndexPaths.append(indexPath)
print(questionViewModel.selectedIndexPaths.append(indexPath))
let questionModel = questionViewModel.titleForHeaderInSection(atsection: section)
print(questionModel.question)
questionViewModel.question = questionModel.question
questionViewModel.questionlist(answer: questionViewModel.question!)
let cell = tableview.cellForRow(at: indexPath) as? NH_QuestionListCell
let model = questionViewModel.datafordisplay(atindex: indexPath)
print(model.values)
questionViewModel.answer(answer: model.values!)
let value: Int = questionModel.id
let string = String(describing: value)
//let x: Int? = Int(model.id)
questionViewModel.question_id = string
questionViewModel.question(answer: questionViewModel.question_id!)
print(questionModel.id)
// append the selected index paths
} // if indexPath.section == section {
// questionViewModel.indexPath(indexPaths: index)
// }
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
if let index = questionViewModel.selectedIndexPaths.index(of: indexPath) {
print(index)
questionViewModel.selectedIndexPaths.remove(at: index)
}
}
根据这个我得到了输出。 但我在 View Controller 中有按钮操作。
@IBAction func forward(_ sender: AnyObject) {
}
在此按钮操作中，我需要检查是否从每个部分中选择了一行。如果不显示警报。该怎么做
我当前的 didselect 方法:-
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath){
let cell = tableview.cellForRow(at: indexPath) as? NH_QuestionListCell
let model = questionViewModel.datafordisplay(atindex: indexPath)
print(model.isSelected)
cell?.setOptions(OptionsSelected:questionViewModel.datafordisplay(atindex: indexPath))
print(model.isSelected)
questionViewModel.isselected = model.isSelected!
let section = indexPath.section
let index = indexPath.row
print(section)
print(index)
if !questionViewModel.selectedIndexPaths.contains(indexPath) {
questionViewModel.selectedIndexPaths.append(indexPath)
print(questionViewModel.selectedIndexPaths.append(indexPath))
let questionModel = questionViewModel.titleForHeaderInSection(atsection: section)
print(questionModel.question)
questionViewModel.question = questionModel.question
questionViewModel.questionlist(answer: questionViewModel.question!)
let cell = tableview.cellForRow(at: indexPath) as? NH_QuestionListCell
let model = questionViewModel.datafordisplay(atindex: indexPath)
print(model.values)
questionViewModel.answer(answer: model.values!)
let value: Int = questionModel.id
let string = String(describing: value)
//let x: Int? = Int(model.id)
questionViewModel.question_id = string
questionViewModel.question(answer: questionViewModel.question_id!)
print(questionModel.id)
}
我有3个数组 根据这个didselect方法:-
例如:-对于第 1 部分:-我选择了第一行，因此数据附加如下。
questionlist:["How r u?"]
answelist:["fine"]
但是假设我认为我需要第二个索引路径，所以我需要从数组中删除以前附加的数据并附加当前数据。如下所示:
questionlist:["How r u?"]
answelist:["not well"]
接下来是第2部分:我选择了第一个indexpath.row数据。然后该数据被追加。所以我需要得到如下:-
questionlist:["How r u?","Gender"]
answelist:["not well","Male"]
在这里选择我认为我需要第二个选项，然后从数组中删除添加的indexpath.row数据并显示为:-
questionlist:["How r u?","Gender"]
answelist:["not well","Female"]
这样怎么设置？
最佳答案
您可以根据选择更新模型，例如
"data":[
{
"question": "Gender",
"options": ["Male","Female"],
"optionSelected": "Male"
}
]
然后在“提交”上检查选择的数据
关于ios - 从 UITableView 的每个部分中选择的行(多项选择)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52162726/