Swift 在自定义日历快捷界面中标记几天
我的应用程序中有一个自定义日历。现在,举例来说,我想强调从1月10日到1月20日的10天。我想从这两天开始改变背景色。所以我有两个日期,我想改变这两天和这两天之间的背景色。所以1月10-20日。我该怎么做Swift 在自定义日历快捷界面中标记几天,swift,calendar,swiftui,Swift,Calendar,Swiftui,我的应用程序中有一个自定义日历。现在,举例来说,我想强调从1月10日到1月20日的10天。我想从这两天开始改变背景色。所以我有两个日期,我想改变这两天和这两天之间的背景色。所以1月10-20日。我该怎么做 fileprivate extension DateFormatter { static var month: DateFormatter { let formatter = DateFormatter() formatter.dateFormat =
fileprivate extension DateFormatter {
static var month: DateFormatter {
let formatter = DateFormatter()
formatter.dateFormat = "MMMM"
return formatter
}
static var monthAndYear: DateFormatter {
let formatter = DateFormatter()
formatter.dateFormat = "MMMM yyyy"
return formatter
}
}
fileprivate extension Calendar {
func generateDates(
inside interval: DateInterval,
matching components: DateComponents
) -> [Date] {
var dates: [Date] = []
dates.append(interval.start)
enumerateDates(
startingAfter: interval.start,
matching: components,
matchingPolicy: .nextTime
) { date, _, stop in
if let date = date {
if date < interval.end {
dates.append(date)
} else {
stop = true
}
}
}
return dates
}
}
struct WeekView<DateView>: View where DateView: View {
@Environment(\.calendar) var calendar
let week: Date
let content: (Date) -> DateView
init(week: Date, @ViewBuilder content: @escaping (Date) -> DateView) {
self.week = week
self.content = content
}
private var days: [Date] {
guard
let weekInterval = calendar.dateInterval(of: .weekOfYear, for: week)
else { return [] }
return calendar.generateDates(
inside: weekInterval,
matching: DateComponents(hour: 0, minute: 0, second: 0)
)
}
var body: some View {
HStack {
ForEach(days, id: \.self) { date in
HStack {
if self.calendar.isDate(self.week, equalTo: date, toGranularity: .month) {
self.content(date)
} else {
self.content(date).hidden()
}
}
}
}
}
}
struct MonthView<DateView>: View where DateView: View {
@Environment(\.calendar) var calendar
let month: Date
let showHeader: Bool
let content: (Date) -> DateView
init(
month: Date,
showHeader: Bool = true,
@ViewBuilder content: @escaping (Date) -> DateView
) {
self.month = month
self.content = content
self.showHeader = showHeader
}
private var weeks: [Date] {
guard
let monthInterval = calendar.dateInterval(of: .month, for: month)
else { return [] }
return calendar.generateDates(
inside: monthInterval,
matching: DateComponents(hour: 0, minute: 0, second: 0, weekday: calendar.firstWeekday)
)
}
private var header: some View {
let component = calendar.component(.month, from: month)
let formatter = component == 1 ? DateFormatter.monthAndYear : .month
return Text(formatter.string(from: month))
.font(.title)
.padding()
}
var body: some View {
VStack {
if showHeader {
header
}
ForEach(weeks, id: \.self) { week in
WeekView(week: week, content: self.content)
}
}
}
}
struct CalendarView<DateView>: View where DateView: View {
@Environment(\.calendar) var calendar
let interval: DateInterval
let content: (Date) -> DateView
init(interval: DateInterval, @ViewBuilder content: @escaping (Date) -> DateView) {
self.interval = interval
self.content = content
}
private var months: [Date] {
calendar.generateDates(
inside: interval,
matching: DateComponents(day: 1, hour: 0, minute: 0, second: 0)
)
}
var body: some View {
ScrollView(.vertical, showsIndicators: false) {
VStack {
ForEach(months, id: \.self) { month in
MonthView(month: month, content: self.content)
}
}
}
}
}
struct RootView: View {
@Environment(\.calendar) var calendar
private var year: DateInterval {
calendar.dateInterval(of: .year, for: Date())!
}
var body: some View {
CalendarView(interval: year) { date in
Text("30")
.hidden()
.padding(8)
.background(Color.white)
.clipShape(Circle())
.padding(.vertical, 4)
.overlay(
Text(String(self.calendar.component(.day, from: date)))
)
}
}
}
fileprivate扩展日期格式化程序{
静态变量月份:DateFormatter{
let formatter=DateFormatter()
formatter.dateFormat=“MMMM”
返回格式化程序
}
静态变量monthAndYear:DateFormatter{
let formatter=DateFormatter()
formatter.dateFormat=“MMMM-yyyy”
返回格式化程序
}
}
文件专用扩展日历{
生成函数(
间隔内:日期间隔,
匹配组件:DateComponents
)->[日期]{
变量日期:[日期]=[]
dates.append(interval.start)
列举日期(
startingAfter:interval.start,
匹配:组件,
匹配策略:。下一次
){date,{u0,在
如果让日期=日期{
如果日期DateView
初始化(周:日期,@ViewBuilder内容:@escaping(日期)->DateView){
self.week=周
self.content=内容
}
私人var天数:[日期]{
警卫
让weekInterval=calendar.dateInterval(of:.weekOfYear,for:week)
else{return[]}
return calendar.generateDates(
内部:周末,
匹配:DateComponents(小时:0,分钟:0,秒:0)
)
}
var body:一些观点{
HStack{
ForEach(天,id:\.self){中的日期
HStack{
如果self.calendar.isDate(self.week,equalTo:date,toGranularity:.month){
自我介绍内容(日期)
}否则{
self.content(date.hidden)()
}
}
}
}
}
}
结构MonthView:视图,其中DateView:视图{
@环境(\.calendar)变量日历
月份:日期
让我们看看标题:Bool
让内容:(日期)->DateView
初始化(
月份:日期,
showHeader:Bool=true,
@ViewBuilder内容:@escaping(日期)->DateView
) {
self.month=月
self.content=内容
self.showHeader=showHeader
}
私人var周:[日期]{
警卫
让monthInterval=calendar.dateInterval(of:.月,for:月)
else{return[]}
return calendar.generateDates(
内部:蒙特维尔,
匹配:DateComponents(小时:0,分钟:0,秒:0,工作日:日历。第一个工作日)
)
}
私有变量头:一些视图{
让component=calendar.component(.month,from:month)
让formatter=component==1?DateFormatter.monthAndYear:.month
返回文本(formatter.string(from:month))
.font(.title)
.padding()
}
var body:一些观点{
VStack{
如果显示标题{
标题
}
ForEach(weeks,id:\.self){week in
WeekView(周:周,内容:self.content)
}
}
}
}
结构CalendarView:视图,其中DateView:视图{
@环境(\.calendar)变量日历
让间隔:日期间隔
让内容:(日期)->DateView
初始化(间隔:DateInterval,@ViewBuilder内容:@escaping(Date)->DateView){
self.interval=间隔
self.content=内容
}
私人var月:[日期]{
日历生成日期(
内部:间隔,
匹配:DateComponents(天:1,小时:0,分钟:0,秒:0)
)
}
var body:一些观点{
滚动视图(.vertical,showsIndicators:false){
VStack{
ForEach(月,id:\.self){month in
MonthView(月:月,内容:self.content)
}
}
}
}
}
结构RootView:View{
@环境(\.calendar)变量日历
年份:日期间隔{
calendar.dateInterval(of:.年,for:Date())!
}
var body:一些观点{
日历视图(间隔:年){中的日期
文本(“30”)
.hidden()
.填充(8)
.背景(颜色.白色)
.clipShape(圆())
.padding(.vertical,4)
.覆盖(
文本(字符串(self.calendar.component(.day,from:date)))
)
}
}
}
使用此swift软件包,您可以根据需要进行定制