我想将节标题显示为一月,二月,三月(根据数据来自api),而不是显示一月,三月,二月。
我正在从后端api获取此数据。
wholeDic : NSDictionary = {
January = (
{
date = "20-jan-18";
subtitle = "Only four days remaining";
title = "School fees of August, 2018School fees of August, 2018";
},
{
date = "21-jan-18";
subtitle = Holi;
title = "Holiday on third march";
}
);
february = (
{
date = "20-feb-18";
subtitle = "Paricipate in this activity";
title = "Annual function will be held in feb,2018";
},
{
date = "20-12-18";
subtitle = "Holiday issue by Govt. of India";
title = "Bharat Band";
}
);
march = (
{
date = "20-feb-18";
subtitle = "Paricipate in this activity";
title = "Annual function will be held in feb,2018";
},
{
date = "20-feb-18";
subtitle = "Paricipate in this activity";
title = "Annual function will be held in feb,2018";
}
);}
现在,我已获取“密钥”并添加到数组中
for (key, value) in wholeDic{
sectionTitleArray.add(key)
print(sectionTitleArray)
}
,当我打印sectionTitleArray时,控制台将显示January, March, February
而不是显示January, February, March
。
我知道Dictionary是一个无序集合,但是我想知道如何按顺序获取键?
我的UitableView数据源和代理人
func numberOfSections(in tableView: UITableView) -> Int{
return sectionTitleArray.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let sectionTitle : String = sectionTitleArray.object(at: section) as! String
let sectiondes:NSArray = wholeDic.object(forKey: sectionTitle) as! NSArray
return sectiondes.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier = "cell"
let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath) as! frameNboundTableViewCell
let sectionTitle : String = sectionTitleArray.object(at: indexPath.section) as! String
let contentArr : NSArray = wholeDic.object(forKey: sectionTitle) as! NSArray
let contentDic : NSDictionary = contentArr.object(at: indexPath.row) as! NSDictionary
print(contentDic)
cell.titleLbl.text = contentDic.value(forKey: "title") as? String
cell.titleLbl.numberOfLines = 0
return cell
}
答案 0 :(得分:0)
您应该将首字母大写:
extension String {
func capitalizingFirstLetter() -> String {
return prefix(1).capitalized + dropFirst()
}
mutating func capitalizeFirstLetter() {
self = self.capitalizingFirstLetter()
}
}
然后是小节标题:
let sectionTitleStr = sectionTitleArray.object(at: indexPath.section) as! String
let sectionTitle : String = sectionTitleStr.capitalizingFirstLetter()
答案 1 :(得分:0)
基于注释,您可以将api响应更改为数组,并只需使用索引即可访问。 json响应将如下所示:
{
"data" : [
{
"month" : "January",
"details" : [
{
"date" : "20-jan-18",
"subtitle" : "Only four days remaining",
"title" : "School fees of August, 2018School fees of August, 2018"
},
{
"date" : "21-jan-18",
"subtitle" : "Holi",
"title" : "Holiday on third march"
}
]
},
{
"month" : "february",
"details" : [
{
"date" : "20-feb-18",
"subtitle" : "Paricipate in this activity",
"title" : "Annual function will be held in feb,2018"
},
{
"date" : "20-12-18",
"subtitle" : "Holiday issue by Govt. of India",
"title" : "Bharat Band"
}
]
},
{
"month" : "march",
"details" : [
{
"date" : "20-feb-18",
"subtitle" : "Paricipate in this activity",
"title" : "Annual function will be held in feb,2018"
},
{
"date" : "20-feb-18",
"subtitle" : "Paricipate in this activity",
"title" : "Annual function will be held in feb,2018"
}
]
}
]
}
现在,您可以从json数组访问第一个对象,然后检索相应的键并显示它。就像
let object = response.data![index]
object.month // "January"
希望有帮助