Iam trying to use UISearchBar but it's not working with me
here's my code
class searchViewController: UIViewController , UITableViewDataSource , UISearchBarDelegate{
var searchResults = [String]()
#IBOutlet weak var searchTable: UITableView!
#IBOutlet weak var mySearchBar: UISearchBar!
override func viewDidLoad() {
super.viewDidLoad()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return searchResults.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = searchTable.dequeueReusableCellWithIdentifier("searchCell", forIndexPath: indexPath) as! UITableViewCell
return cell
}
func searchBarSearchButtonClicked(searchBar: UISearchBar) {
print("print anything ")
}
func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
print(self.mySearchBar.text)
}
}
when i click in the search button in the keyboard using simulator no thing is happen
i tried searchBarTextDidBeginEditing it's not working too
did i do something wrong ?
Your code is fine, but you need to set mySearchBar.delegate = self or you could do it on the storyboard, using ctrl+drag the search bar to the viewController and choosing delegate.
I was also facing the same issue, just include UISearchBarDelegate with UIViewController issue resolved.
Related
I've created a tableView, but when I click it, I don't get any results. I wanted to add a new feature to improve my project, but I couldn't add the videos I watched and the things I researched.
Table View
import UIKit
class ViewController1: UIViewController {
#IBOutlet weak var FoodView: UITableView!
let dogfoods = ["pork", "banana", "chicken-leg"]
override func viewDidLoad() {
super.viewDidLoad()
FoodView.delegate = self
FoodView.dataSource = self
// not tapped no see
FoodView.allowsSelection = false
}
}
extension ViewController1: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 120
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dogfoods.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = FoodView.dequeueReusableCell(withIdentifier: "CustomCell") as! CustomCell
let dogfood = dogfoods[indexPath.row]
cell.foodImageView.image = UIImage(named: dogfood)
cell.nameLabel.text = dogfood
return cell
}
}
CustomCell
class CustomCell: UITableViewCell {
#IBOutlet weak var dogView: UIView!
#IBOutlet weak var nameLabel: UILabel!
#IBOutlet weak var foodImageView: UIImageView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}
When I click on one of the cells in the picture, I want to write a larger version of the picture and a description, how can I do this? When I searched on the internet, I applied similar ones, but I couldn't get any results.
You have a few choices. You can add one or more buttons to your custom cell. You can attach a tap gesture recognizer to your cell's content view.
Probably the easiest way to respond to a tap on the whole cell is to have view controller conform to the UITableViewDelegate protocol and implement the tableView(_:didSelectRowAt:) method.
That method will be called when the user selects a cell, and you would use the indexPath of the tapped cell to figure out which one was tapped and do whatever is appropriate.
You can do that with easy and efficient way using Delegate in Swift
//create protocol as we used interface in Java
#objc protocol TableViewCellDelegate {
#objc func click(indexPath: IndexPath?)
}
// Modify your class CustomCell as:
#IBOutlet weak var dogView: UIView!
#IBOutlet weak var nameLabel: UILabel!
#IBOutlet weak var foodImageView: UIImageView!
var delegate: TableViewCellDelegate?
var indexPath: IndexPath?
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(imageTapped(tapGestureRecognizer:)))
foodImageView.isUserInteractionEnabled = true
foodImageView.addGestureRecognizer(tapGestureRecognizer)
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
#objc func imageTapped(tapGestureRecognizer: UITapGestureRecognizer) {
let tappedImage = tapGestureRecognizer.view as! UIImageView
self.delegate.click?(indexPath: self.indexPath)
}
// Modify your tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) in ViewController1 as
let cell = FoodView.dequeueReusableCell(withIdentifier: "CustomCell") as! CustomCell
cell.delegate = self
cell.indexPath = indexPath
let dogfood = dogfoods[indexPath.row]
cell.foodImageView.image = UIImage(named: dogfood)
cell.nameLabel.text = dogfood
return cell
// And now add extension add the end of ViewController1
extension ViewController1: TableViewCellDelegate {
func click(indexPath: IndexPath?) {
// open image for preview here
}
}
You can do it in many ways
use a add a UITableViewDelegate method which is
override func tableView(_ tableView: UITableView, didSelectRowAt
indexPath: IndexPath){
//your code...
}
it will called every time when cell clicked.
if you prefer to trigger any button click rather then cell click then go for delegate (Izaan Saleem already explained), or you can use NotificationCenter, but for this task I prefer didSelect or delegate solution.
I am trying to build a times tables app with a slider and a UITableView, but it gives me the SIGABRT error. I have tried relinking every outlet and action as well as redoing it from scratch, but it still won't seem to work.
Since I cannot paste it in here correctly formatted, I put it on pastebin.com
Debug code: http://pastebin.com/cBaALXWq
ViewController.swift
import UIKit
class ViewController: UIViewController, UITableViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBOutlet weak var sliderValue: UISlider!
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 50
}
#IBAction func sliderMoved(sender: AnyObject) {
var timesTableIndex: Int = Int(sender.value)!
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "Cell")
cell.textLabel?.text = String(timesTableIndex*indexPath.row+1)
return cell
}
}
}
AppDelegate.swift; gives error in line 4
import UIKit
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
EDIT
#IBOutlet weak var sliderValue: UISlider!
var timesTableIndex: Int?
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 50
}
#IBAction func sliderMoved(sender: AnyObject) {
timesTableIndex = Int(sliderValue.value * 50)
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "Cell")
cell.textLabel.text = String(timesTableIndex*(1+indexPath.row))
return cell
}
I looks like you've added cellForRowAtIndex: inside #IBAction method. What you need to do is to take it out from the method. In addition you need set the timesTableIndex variable as global so that it can be accessed in cellForRowAtIndexPath: and call the reloadData method on tableView when you call sliderMoved: method.
var timesTableIndex: Int = 0 // Now global variable
#IBAction func sliderMoved(sender: AnyObject) {
timesTableIndex = Int(sender.value)!
self.tableView.reloadData()
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath)
cell.textLabel?.text = "\(timeTableIndex * indexPath.row + 1)"
return cell
}
Also it seems that you are not using dequeueReusableCellWithIdentifier method on your table view, so I've updated the code to use it. Not that you need to set the Cell reuse identifier in your storyboard.
This should be your tableview code if you have created tableview in the storyboard
#IBOutlet weak var sliderValue: UISlider!
#IBOutlet weak var tableview: UITableView!
var timesTableIndex: Int = 0
#IBAction func sliderMoved(sender: AnyObject) {
timesTableIndex = Int(sliderValue.value * 50)
tableview.reloadData()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return timesTableIndex
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath)
cell.textLabel!.text = String(1*(1+indexPath.row))
return cell
}
If you have created your cell in the storyboard set the CellReuseIdentifier as 'cell' in the storyboard else you can register the class in the like
override func viewDidLoad() {
super.viewDidLoad()
//tableView is IBOutlet instance of UITableview
tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "test")
}
Also please check you have set the tableview delegate/datasource in the storyboard tableview object
I've managed to solve the problem. I accidentally put the function which sets up the prototype cell outside the ViewController class, that explains everything. Thank you for helping me!
This is my history view, I have a tableview inside view controller. But for some reason i can't output anything, I am trying to hardcode it and its not displaying anything at all. One thing i know is i need to make tableView functions override and if i do that i get error.
import UIKit
class History: UIViewController, UITableViewDataSource, UITableViewDelegate
{
#IBOutlet var tableView: UITableView!
override func viewDidLoad()
{
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
self.view.backgroundColor = UIColor(patternImage: UIImage(named: "newBackground.jpg")!)
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCellWithIdentifier("historyCell", forIndexPath: indexPath) as! historyCell
cell.durationLabel.text = "98"
return cell
}
override func viewWillAppear(animated: Bool)
{
super.viewWillAppear(animated)
}
}
heres my class for the cell prototype, and i made sure that the identifier is also "historyCell"
public class historyCell: UITableViewCell{
#IBOutlet var durationLabel: UILabel!
#IBOutlet var kicksLabel: UILabel!
}
How did you connect your prototype cell's controls to the IBOutlets in you historyCell class ? I didn't know that was possible when you're not using a UITableviewController. I've been using tags all this time.
Unless there's something new that I wasn't aware of, your assignment to cell.durationLabel.text should cause unwrapping of a nil (is that the error you're getting ?)
I intergrade SWRevealViewController to my project
my project flow is
viewcontroller ---> SWRevealViewController -->menu
--> nav-->front view
the segue method from my initial view controller to SWRevealViewController is model
my problem is when my I open toggle in front view for first time only
it give me empty menu(table view)
my front view code
#IBOutlet weak var open: UIBarButtonItem!
#IBOutlet weak var result: UILabel!
#IBAction func showmore(sender: AnyObject) {
performSegueWithIdentifier("resdes", sender: sender)
}
override func viewDidLoad() {
super.viewDidLoad()
var res = Uti.get_result()
result.text = res.description
open.target = self.revealViewController()
open.action = Selector("revealToggle:")
self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
// Do any additional setup after loading the view.
}
my rear code
class slidemenuVC : UITableViewController{
var menuItems = [String]()
override func viewDidAppear(animated: Bool) {
menuItems = ["Result","About us","References","Rest Test"]
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return menuItems.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier(menuItems[indexPath.row], forIndexPath: indexPath) as UITableViewCell
cell.textLabel?.text = menuItems[indexPath.row]
return cell
}
}
Second problem :
when I press at first menu item , navigation disappear
it should be like this have toggle
var cell = tableView.dequeueReusableCellWithIdentifier(menuItems[indexPath.row], forIndexPath: indexPath) as UITableViewCell
is wrong. You need your identifier has to be the actual cell id in your uitableviewcell
every one.
After lots of search and different test my code doesn't work yet...
I try to do a simple UITableView with a simple Prototype cell whit using "dequeueReusableCellWithIdentifier" but this function doesn't found my Prototype Cell.
My code :
import Foundation
import UIKit
class DanceClubViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tableViewSound: UITableView!
override func viewDidLoad()
{
super.viewDidLoad()
self.tableViewSound.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cellVote")
self.tableViewSound.dataSource = self
self.tableViewSound.delegate = self
self.tableViewSound.reloadData()
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
}
#IBAction func backToViewPlay(sender: AnyObject) {
self.navigationController?.popToRootViewControllerAnimated(true)
}
func tableView(tableView:UITableView, numberOfRowsInSection section:Int)->Int
{
return 10
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
var cell : UITableViewCell = self.tableViewSound.dequeueReusableCellWithIdentifier("cellVote") as UITableViewCell
return cell
}
If anyone had already had this problem?
The identifier for my Prototype Cell is : cellVote
The key to address your label is to create a custom TableViewCell class in another file:
import UIKit
class DanceCell: UITableViewCell {
#IBOutlet weak var num: UILabel! //connect the label
}
Then for your ViewController:
import Foundation
import UIKit
class DanceClubViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tableViewSound: UITableView!
override func viewDidLoad()
{
super.viewDidLoad()
self.tableViewSound.dataSource = self
self.tableViewSound.delegate = self
self.tableViewSound.reloadData()
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
}
#IBAction func backToViewPlay(sender: AnyObject) {
self.navigationController?.popToRootViewControllerAnimated(true)
}
func tableView(tableViewSound:UITableView, numberOfRowsInSection section:Int)->Int
{
return 10
}
func tableView(tableViewSound: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = tableViewSound.dequeueReusableCellWithIdentifier("cellVote", forIndexPath: indexPath) as DanceCell
cell.num.text = "Hello"
return cell
}
}
I removed some stuff, and added he key line in the 'cellForRowAtIndexPath' function to register the cell. I then was able to communicate with the label. Make sure the prototype cell has set 'cellVote' as the identifier in at attributes inspector.