This is the entire extension section of the JTAppleCalendar delegate and datasource methods implementation.
extension ViewController : JTAppleCalendarViewDelegate, JTAppleCalendarViewDataSource {
func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
// set date formatter
formatter.dateFormat = "yyyy MM dd"
formatter.timeZone = Calendar.current.timeZone
formatter.locale = Calendar.current.locale
let startDate = Date()
let endDate = (Calendar.current as NSCalendar).date(byAdding: .day, value: 180, to: startDate, options: [])!
let parameters = ConfigurationParameters(startDate: startDate, endDate: endDate)
return parameters
}
func calendar(_ calendar: JTAppleCalendarView, cellForItemAt date: Date, cellState: CellState, indexPath: IndexPath) -> JTAppleCell {
let cell = calendar.dequeueReusableJTAppleCell(withReuseIdentifier: "DateCell", for: indexPath) as! AccountsDateCell
cell.dateLabel.text = cellState.text
return cell
}
}
Xcode is saying:
Type 'ViewController' does not conform to protocol 'JTAppleCalendarViewDelegate'
It looks like the problem is with manual installation of the library. I dragged and dropped the files into this project. Is there any other way to manually add the library to the project?
You must implement the configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters delegate method.
If you are using Xcode 9, it should offer to insert the required function stubs for you.
Related
for calendar i am using JTAppleCalendar pod in my project
and i am able to show current month in calendar, but i need to show current week in calendar but how
for current month showing in calendar am using below code
extension ViewController: JTAppleCalendarViewDataSource {
func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy MM dd"
let startDate = formatter.date(from: "2010 01 01")!
let endDate = formatter.date(from: "2050 01 01")!
return ConfigurationParameters(startDate: startDate, endDate: endDate)
}
}
extension ViewController: JTAppleCalendarViewDelegate {
func calendar(_ calendar: JTAppleCalendarView, cellForItemAt date: Date, cellState: CellState, indexPath: IndexPath) -> JTAppleCell {
let cell = calendar.dequeueReusableJTAppleCell(withReuseIdentifier: "dateCell", for: indexPath) as! DateCell
self.calendar(calendar, willDisplay: cell, forItemAt: date, cellState: cellState, indexPath: indexPath)
if testCalendar.isDateInToday(date) {
cell.dateLabel.textColor = UIColor.blue
cell.dateLabel.font = UIFont.boldSystemFont(ofSize: 13.0)
} else {
testCalendar.isDateInToday(date) == false
}
return cell
}
func calendar(_ calendar: JTAppleCalendarView, headerViewForDateRange range: (start: Date, end: Date), at indexPath: IndexPath) -> JTAppleCollectionReusableView {
let header = calendar.dequeueReusableJTAppleSupplementaryView(withReuseIdentifier: "DateHeader", for: indexPath) as! DateHeader
formatter.dateFormat = "MMM yyyy"
header.monthTitle.text = formatter.string(from: range.start)
return header
}
}
0/p:
but i need to show current week in calendar, how?, plz do help
Return '1' for numberOfRows and modify the configureCalendar like this:
extension ViewController: JTAppleCalendarViewDataSource {
func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy MM dd"
let startDate = formatter.date(from: "2010 01 01")!
let endDate = formatter.date(from: "2050 01 01")!
return ConfigurationParameters(startDate: startDate,
endDate: endDate,
numberOfRows: 1,
generateInDates: .forFirstMonthOnly,
generateOutDates: .off,
hasStrictBoundaries: false)
}
}
Following cocoapod match your requirement :
FSCalender
Please try to use below pod in pod file:
use_frameworks!
target '<Your Target Name>' do
pod 'FSCalendar'
end
I am using this code to add dots for events and the dots appear perfectly fine but when I select the day with the event, the dot permanently disappears and even when selecting another day, the dot still doesnt reappear.
here is my code to make the dots appear at the start
func calendar(_ calendar: FSCalendar, willDisplay cell: FSCalendarCell, for date: Date, at monthPosition: FSCalendarMonthPosition) {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd"
let dateString = dateFormatter.string(from: date)
cell.eventIndicator.isHidden = false
for wp in worriesPanic{
let wPDateStr = dateFormatter.string(from: wp.date!)
if wPDateStr == dateString {
cell.eventIndicator.numberOfEvents = 1
break
}
}
}
You can use image method for show event.
func calendar(_ calendar: FSCalendar, imageFor date: Date) -> UIImage? {
let dateString = self.dateFormatter1.string(from: date)
if self.yourDate.contains(dateString) {
return UIImage(named:"img")
}
return nil
}
I have a calendar, and I want to select an entire row (week) when I select a day.. this is my code so far:
//When a date is selected
func calendar(_ calendar: JTAppleCalendarView, didSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) {
selectTheWeek(of: date)
setupLayoutCell(cell: cell, cellState: cellState)
}
func selectTheWeek(of date: Date) {
let starOfTheWeek = date.startOfWeek()
let endOfTheWeeK = date.endOfWeek()
calendarCollectionView.selectDates(from: starOfTheWeek, to: endOfTheWeeK)
}
extension Date {
func startOfWeek() -> Date {
let calendar = Calendar.autoupdatingCurrent
let currentDateComponents = calendar.dateComponents([.yearForWeekOfYear, .weekOfYear], from: self)
return calendar.date(from: currentDateComponents)!
}
func endOfWeek() -> Date {
let cal = Calendar.autoupdatingCurrent
var component = DateComponents()
component.weekOfYear = 1
component.day = -1
return cal.date(byAdding: component, to: startOfWeek())!
}
}
the problem is that I'm having an infinite loop, and it's clear the reason.
But I don't know how to prevent it. Any help?
JTAppleCalender is an external library. It's an extension of a collectionView.
You can use 2 techniques to break the loop.
First:
calendarViewselectDates(from: starOfTheWeek, to: endOfTheWeeK, triggerSelectionDelegate: false)
By setting triggerSelectionDelegate to false, your delegate function didSelect will not be called.
Second:
If you are using MasterBranch code (which i'll be releasing in a week or so), you can know whether or not your selection is programmer initiated vs user initiated. You know this by --> cellState.
if cellState.selectionType == .programatic {
// ignore stuff
} else {
// Do stuff
}
You can put this if statement in your shouldSelect function.
I know this is a not the best possible solution but it could work to avoid your issue
//When a date is selected
var shouldSelectWeek = true
func calendar(_ calendar: JTAppleCalendarView, didSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) {
if shouldSelectWeek{
selectTheWeek(of: date)
shouldSelectWeek = false
}
setupLayoutCell(cell: cell, cellState: cellState)
}
func selectTheWeek(of date: Date) {
let starOfTheWeek = date.startOfWeek()
let endOfTheWeeK = date.endOfWeek()
calendarCollectionView.selectDates(from: starOfTheWeek, to: endOfTheWeeK)
}
extension Date {
func startOfWeek() -> Date {
let calendar = Calendar.autoupdatingCurrent
let currentDateComponents = calendar.dateComponents([.yearForWeekOfYear, .weekOfYear], from: self)
return calendar.date(from: currentDateComponents)!
}
func endOfWeek() -> Date {
let cal = Calendar.autoupdatingCurrent
var component = DateComponents()
component.weekOfYear = 1
component.day = -1
return cal.date(byAdding: component, to: startOfWeek())!
}
Just add a new boolean variable like var shouldIgnoreDateSelection = false and then you just do
func calendar(_ calendar: JTAppleCalendarView, didSelectDate date: Date, cell: JTAppleCell?, cellState: CellState) {
if shouldIgnoreDateSelection == false {
selectTheWeek(of: date)
}
setupLayoutCell(cell: cell, cellState: cellState)
}
func selectTheWeek(of date: Date) {
let starOfTheWeek = date.startOfWeek()
let endOfTheWeeK = date.endOfWeek()
shouldIgnoreDateSelection = true
calendarCollectionView.selectDates(from: starOfTheWeek, to: endOfTheWeeK)
shouldIgnoreDateSelection = false
}
Hi I am newbie to JTAppleCalendar. I need help.
I have installed it thru cocoapods and used some of the code as below.
I need help on how to use the basic functions such as:
Set the calendar for the current month
JTC.scrollToDate(Date())
show the current date on the calendar.
Do I need to specify or configure how many years this calendar support like 100 or 200 years?
Is this way correct to get a reference for the JTAppleCalendar
#IBOutlet weak var JTC: JTAppleCalendarView!
Please help to correct the code.
import UIKit
import JTAppleCalendar
class ViewController: UIViewController {
let formatter = DateFormatter()
#IBOutlet weak var JTC: JTAppleCalendarView!
override func viewDidLoad() {
super.viewDidLoad()
let d = Date()
var dateArr = [Date]()
dateArr.append(d)
JTC.scrollToDate(Date())
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
extension ViewController: JTAppleCalendarViewDelegate,JTAppleCalendarViewDataSource{
func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
formatter.dateFormat = "yyyy MM dd"
formatter.timeZone = Calendar.current.timeZone
formatter.locale = Calendar.current.locale
let startDate = formatter.date(from: "2017 01 01")!
let endDate = formatter.date(from: "2117 12 31")!
let parameters = ConfigurationParameters(startDate: startDate, endDate: endDate)
return parameters
}
func calendar(_ calendar:JTAppleCalendarView,cellForItemAt date: Date, cellState: CellState, indexPath: IndexPath) -> JTAppleCell{
let cell = calendar.dequeueReusableJTAppleCell(withReuseIdentifier: "CustomCell", for: indexPath) as! CustomCell
cell.dateLabel.text = cellState.text
return cell
}
}
Thanks
The issue was solved for me by adding three methods in ViewDidLoad and setting start and end dates as follows:
override func viewDidLoad() {
self.calendarView.visibleDates {[unowned self] (visibleDates: DateSegmentInfo) in
self.setupViewsOfCalendar(from: visibleDates)
}
self.calendarView.scrollToDate(Date(),animateScroll: false)
self.calendarView.selectDates([ Date() ])
}
In Calendar configuration set dates as follows:
func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
formatter.dateFormat = "yyy MM dd"
formatter.timeZone = Calendar.current.timeZone
formatter.locale = Calendar.current.locale
var dateComponent = DateComponents()
dateComponent.year = 1
let startDate = Date()
let endDate = Calendar.current.date(byAdding: dateComponent, to: startDate)
let parameters = ConfigurationParameters(startDate: startDate, endDate: endDate!, numberOfRows: 6, calendar: Calendar.current, generateInDates: .forFirstMonthOnly, generateOutDates: .off, firstDayOfWeek: .sunday, hasStrictBoundaries: true)
return parameters
}
I am using a JTAppleCalendar pod file in my project and when I installed the pod file I couldn't use the method JTAppleCell and I just could use JTAppleDayCell I watched this video
https://www.youtube.com/watch?v=Qd_Gc67xzlw
and this
https://www.youtube.com/watch?v=zOphH-h-qCs
Here is my codes
import UIKit
import JTAppleCalendar
class calendarViewController: UIViewController {
#IBOutlet weak var calendarCollectionView: UICollectionView!
let formatter = DateFormatter()
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
extension calendarViewController : JTAppleCalendarViewDataSource {
func configureCalendar(_ calendar: JTAppleCalendarView) -> ConfigurationParameters {
formatter.dateFormat = "yyyy MM dd"
formatter.timeZone = Calendar.current.timeZone
formatter.locale = Calendar.current.locale
let startDate = formatter.date(from: "2017 01 01")!
let endDate = formatter.date(from: "2017 12 31")!
let parameters = ConfigurationParameters(startDate: startDate, endDate: endDate)
return parameters
}
func calendar(_calebdar : JTAppleCalendarView , cellForItemAt date : Date , cellState : CellState , indexPath : IndexPath ) -> JTAppleDayCell {
let cell = calendarCollectionView.dequeueReusableCell(withReuseIdentifier: "JTCustomCell", for: indexPath) as! JTCustomCell
cell.dateLabel.text = cellState.text
return cell
}
}
If you are only able to use JTAppleDayCell instead of JTAppleCell, then you are on the wrong version of the library. That video showed you for version 7.0
So the question I ask now is what version are you using?
put this in your podfile:
pod 'JTAppleCalendar'
Then go to your console and run pod update.
The version should say 7.0.4 (which is the latest version as of this date).
If it is saying some other version, then you're doing something wrong.