Group JSON data in Tableview with Swift - ios

Question

I'm creating an app for iOS that get data from my server with json and store it on a tableview; with this no problems, my data are simple notes, some notes are linked together forming projects (simple dependency_id on my database sql), my question is: How can i group my notes by project, like a contact list? (ex. http://img.wonderhowto.com/img/13/66/63535060544981/0/siri-exploit-you-could-bypass-iphones-lock-screen-call-message-any-contact-ios-7-1-1.w654.jpg)
This is the source that populate the table with all notes:
//
// TableController.swift
// uitableview_load_data_from_json
import UIKit
class TableController: UITableViewController {
var TableData:Array< String > = Array < String >()
var userid = NSUserDefaults.standardUserDefaults().stringForKey("userid")!
override func viewDidLoad() {
super.viewDidLoad()
get_data_from_url("http:/localhost/index.php/iOS_getNomenTasks?n=" + userid)
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return TableData.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell
cell.textLabel?.text = TableData[indexPath.row]
return cell
}
func get_data_from_url(url:String)
{
let httpMethod = "GET"
let timeout = 15
let url = NSURL(string: url)
let urlRequest = NSMutableURLRequest(URL: url!,
cachePolicy: .ReloadIgnoringLocalAndRemoteCacheData,
timeoutInterval: 15.0)
let queue = NSOperationQueue()
NSURLConnection.sendAsynchronousRequest(
urlRequest,
queue: queue,
completionHandler: {(response: NSURLResponse!,
data: NSData!,
error: NSError!) in
if data.length > 0 && error == nil{
let json = NSString(data: data, encoding: NSASCIIStringEncoding)
self.extract_json(json!)
}else if data.length == 0 && error == nil{
println("Nothing was downloaded")
} else if error != nil{
println("Error happened = \(error)")
}
}
)
}
func extract_json(data:NSString)
{
var parseError: NSError?
let jsonData:NSData = data.dataUsingEncoding(NSASCIIStringEncoding)!
let json: AnyObject? = NSJSONSerialization.JSONObjectWithData(jsonData, options: nil, error: &parseError)
if (parseError == nil)
{
if let task_list = json as? NSArray
{
for (var i = 0; i < task_list.count ; i++ )
{
if let tasj_obj = task_list[i] as? NSDictionary
{
if let task_id = tasj_obj["id"] as? String
{
if let task_name = tasj_obj["tk_title"] as? String
{
if let task_type = tasj_obj["tk_type"] as? String
{
TableData.append(task_name)
}
}
}
}
}
}
}
do_table_refresh();
}
func do_table_refresh()
{
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
return
})
}
}
ok..
task_id is the note id,
task_name is the note name,
task_type is the value that identify if note is a project or not, if task_type is 0, the note is a simple note, if task_type is 1 the note is a project.

Answer 1

If you create an UITableViewController, you have the function :
override func numberOfSectionsInTableView(tableView: UITableView) -> Int
With it, you have 3 sections who contains 2 lines :
var tab: [String] = ["section 1", "section 2", "section 3"]
var tabData: [AnyObject] = [["item1", "item2"],["item1", "item2"],["item1", "item2"]]
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return tab.count
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.dataTab[section].count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell: UITableViewCell = UITableViewCell()
return cell
}