Swift tableview 'method heightForHeaderInSection' makes section text raise - swift

When heightForHeaderInSection and/or heightForFooterInSection is called, the section text raises above it's first row. I attached a screenshot to show the issue. How can I increase the section spacing without the section header being affected?
#IBOutlet weak var tableView: UITableView!
let fruits =
["apple","pear","orange","caramel","peach","fruit","fruits"]
let numbers = ["1", "2"]
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection
section: Int) -> Int {
if section == 0 {
return fruits.count
} else {
return numbers.count
}
}
func tableView(_ tableView: UITableView, titleForHeaderInSection
section: Int) -> String? {
if section == 0 {
return "Animals"
} else {
return "Numbers"
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath:
IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier:
"cell1", for: indexPath)
if indexPath.section == 0 {
cell.textLabel?.text = fruits[indexPath.row]
} else {
cell.textLabel?.text = numbers[indexPath.row]
}
return cell
}
These are the 2 methods in question:
func tableView(_ tableView: UITableView, heightForHeaderInSection
section: Int) -> CGFloat {
return 100
}
func tableView(_ tableView: UITableView, heightForFooterInSection
section: Int) -> CGFloat {
return 100
}

You are setting the height of the header to 100. See here:
func tableView(_ tableView: UITableView, heightForHeaderInSection
section: Int) -> CGFloat {
return 100 // Instead try returning 30
}
func tableView(_ tableView: UITableView, heightForFooterInSection
section: Int) -> CGFloat {
return 100 // If you are not using a footer - return .zero
}

I got the answer from another post.
Just add:
tableView.sectionHeaderTopPadding = 100 // or whatever number you want.
There's also another way.
Click on of these ->
You can choose Grouped or the rounded design 'Inset Grouped'
After you can use the method 'heightForHeaderInSection' to select the specific section/s.

Related

How to insert one Cell into the first section of UITableView Swift

I have created a UITableView with two sections. Now I am trying to populate one section. When I do action, my program populates both sections at the same time with the same text. What I am trying to do is to populate the first section, and then eventually move one of the cell from Section 1 to Section 2. So far I got here:
extension ListVC: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
randomCount = notes.count
return notes.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: CustomNoteCell.reuseId) as! CustomNoteCell
cell.set(with: notes[indexPath.row])
return cell
}
func numberOfSections(in tableView: UITableView) -> Int {
sections.count
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if section < sections.count {
return sections[section]
}
return nil
}
}
I believe it needs to happen in cellForRowAt but I have no clue how to specify section. Any help and clues appreciated. Many thanks ;)
Change the code of numberOfRowInSection to this:
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 { //first section
randomCount = notes.count
return notes.count
}else{
return 0
}
}

dropdown tableview - Swift

I draw data from MSSQL and load this data into tableView. No problem with that. I want to make a drop down menu, but I don't know how to do it. Now all the menus are angled. How do I make tables open and close? How can I do this? How do I make a folding tableview?
class CollapsibleTableViewController: UITableViewController {
var sectionNames: [String] = []
var sectionDetay: [String] = []
override func viewDidLoad() {
super.viewDidLoad()
makaleDetay()
tableView.estimatedRowHeight = 44.0
tableView.rowHeight = UITableView.automaticDimension
}
func makaleDetay(){
...
client.execute("SELECT soru_icerik FROM uzaktanptomg_db.omg_user.ie_soru", completion: { (_ results: ([Any]?)) in
... self.sectionDetay.append(String(result))
...
}
extension CollapsibleTableViewController {
override func numberOfSections(in tableView: UITableView) -> Int {
return sectionDetay.count
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: CollapsibleTableViewCell = tableView.dequeueReusableCell(withIdentifier: "cell") as? CollapsibleTableViewCell ??
CollapsibleTableViewCell(style: .default, reuseIdentifier: "cell")
cell.nameLabel.text = "SSS"
cell.detailLabel.text = sectionDetay[indexPath.section]
return cell
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableView.automaticDimension
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: "header") as? CollapsibleTableViewHeader ?? CollapsibleTableViewHeader(reuseIdentifier: "header")
header.titleLabel.text = sectionNames[section]
header.arrowLabel.text = ">"
header.setCollapsed(false)
header.section = section
header.delegate = self
return header
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 44.0
}
override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 1.0
}
}
extension CollapsibleTableViewController: CollapsibleTableViewHeaderDelegate {
func toggleSection(_ header: CollapsibleTableViewHeader, section: Int) {
....
}
}

How to display data correctly in spacing table view cells

Only the first element from the array is displayed in my spacing cells.
I have no problems displaying data in simple cells without spacing, but when I need spacing cells and change my code, only the first item is displayed
let test = ["1","2","3"]
func numberOfSections(in tableView: UITableView) -> Int {
return test.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection
section: Int) -> Int {
return 1
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
let cellSpacingHeight: CGFloat = 10
return cellSpacingHeight
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView()
headerView.backgroundColor = UIColor.clear
return headerView
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "SellerPlacesCell", for: indexPath) as! SellerPlacesCell
cell.backgroundColor = UIColor.white.withAlphaComponent(0.5)
cell.namePlace.text = test[indexPath.row]
return cell
}
How to fix it?
if in
func tableView(_ tableView: UITableView, numberOfRowsInSection
section: Int) -> Int {
return 1
}
return 1
i replace return 1 to test.count have this:
Replace
cell.namePlace.text = test[indexPath.row]
with
cell.namePlace.text = test[indexPath.section]
the spacing is for the fact that you display sections , so you need to access the array with section not row

How to add select from map option in tableViewCell, Google map, Swift

I am using google map on my current project. To search places when I click on a textField a tableView appear below and I am populating the cell with GMSAutocompletePrediction object. So far its working fine and no problem so far. Now I want to add a cell like "Select From Map", when someone tap one the cell a marker will appear in the map. I can able to put the marker and additional map feature but how can I add that last cell "Select From Map" ? My code below:
var myFilterPredictions = [GMSAutocompletePrediction]()
Then:
func didAutocomplete(with predictions: [GMSAutocompletePrediction]) {
self.myFilterPredictions.removeAll()
print("GMSAutocompletePrediction *********")
for i in predictions {
self.myFilterPredictions.append(i)
}
tableView.reloadData()
}
The populating the tableView
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return myFilterPredictions.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell(style:.subtitle, reuseIdentifier:"searchCell")
let predictions = myFilterPredictions[indexPath.row]
cell.textLabel?.attributedText = predictions.attributedPrimaryText
cell.detailTextLabel?.attributedText = predictions.attributedFullText
return cell
}
My search result looks similar to the image below:
I want to add "Select from map" in the last cell.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0{
return myFilterPredictions.count
}
else{
return 1
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell = UITableViewCell()
if indexPath.section == 1{
cell.textLabel = ""Select From Map""
return cell
}else{
cell = UITableViewCell(style:.subtitle, reuseIdentifier:"searchCell")
let predictions = myFilterPredictions[indexPath.row]
cell.textLabel?.attributedText = predictions.attributedPrimaryText
cell.detailTextLabel?.attributedText = predictions.attributedFullText
return cell
}
}
You also use Group table for that
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
// Removes extra padding in Grouped style
return CGFloat.leastNormalMagnitude
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
// Removes extra padding in Grouped style
return CGFloat.leastNormalMagnitude
}

Delete UITableHeader title when section contains empty row

I am implementing a UITableView to populate contact name of the persons. I have implemented pretty much every thing.
I need to delete the section header title of the section whose rows have been deleted by the user and does not contain any other rows. Is there some way to do that. Simply deleting the value from title array when index.item gives me a crash. Any idea on it..
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return sortedUniqueFirstLetters[section]
}
func numberOfSections(in tableView: UITableView) -> Int {
return sections.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return sections[section].count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath) as! TableViewCell
cell.account = sections[indexPath.section][indexPath.row]
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 80
}
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int){
view.tintColor = UIColor.setColor(Red: 223, Green: 220, Blue: 224, Alpha: 1)
let header = view as! UITableViewHeaderFooterView
header.textLabel?.textColor = UIColor.white
}
func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
return true;
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete{
***if indexPath.item == 0{ //Trying to update title array when a section is empty
sortedUniqueFirstLetters.remove(at: indexPath.section) //Index out of range error here.
}***
sections[indexPath.section].remove(at: indexPath.item)
tableView.deleteRows(at: [indexPath], with: UITableViewRowAnimation.middle);
}
}
Here is the answer :
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if self.tableView(tableView, numberOfRowsInSection: section) > 0 {
return sortedUniqueFirstLetters[section]
} else {
return nil
}
}
You should also use the heightForHeaderInSction as well along with your titleForHEaderInSction method. Let me know if below code works for you:
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
let numberOfRows = tableView.numberOfRows(inSection: section)
if numberOfRows == 0 {
return ""
}else{
return sortedUniqueFirstLetters[section]
}
}
func tableView (tableView:UITableView , heightForHeaderInSection section:Int) -> Float {
let title = self.tableView(tableView, titleForHeaderInSection: section)
if (title == "") {
return 0.0
}
return 80.0
}