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MainActivity.kt
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MainActivity.kt
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package com.ognev.kotlin.agendacalendarview.sample
import android.os.AsyncTask
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.view.View
import android.widget.AdapterView
import android.widget.Toast
import com.ognev.kotlin.agendacalendarview.CalendarController
import com.ognev.kotlin.agendacalendarview.CalendarManager
import com.ognev.kotlin.agendacalendarview.builder.CalendarContentManager
import com.ognev.kotlin.agendacalendarview.models.CalendarEvent
import com.ognev.kotlin.agendacalendarview.models.DayItem
import com.ognev.kotlin.agendacalendarview.models.IDayItem
import kotlinx.android.synthetic.main.activity_main.*
import java.util.*
import kotlin.collections.ArrayList
class MainActivity : AppCompatActivity(), CalendarController {
private var oldDate: Calendar? = null
private var eventList: MutableList<CalendarEvent> = ArrayList()
private lateinit var minDate: Calendar
private lateinit var maxDate: Calendar
private lateinit var contentManager: CalendarContentManager
private var startMonth: Int = Calendar.getInstance().get(Calendar.MONTH)
private var endMonth: Int = Calendar.getInstance().get(Calendar.MONTH)
private var loadingTask: LoadingTask? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
oldDate = Calendar.getInstance()
minDate = Calendar.getInstance()
maxDate = Calendar.getInstance()
minDate.add(Calendar.MONTH, -10)
minDate.add(Calendar.YEAR, -1)
minDate.set(Calendar.DAY_OF_MONTH, 1)
maxDate.add(Calendar.YEAR, 1)
contentManager = CalendarContentManager(this, agenda_calendar_view, SampleEventAgendaAdapter(applicationContext))
contentManager.locale = Locale.ENGLISH
contentManager.setDateRange(minDate, maxDate)
val maxLength = Calendar.getInstance().getMaximum(Calendar.DAY_OF_MONTH)
for (i in 1..maxLength) {
val day = Calendar.getInstance(Locale.ENGLISH)
day.timeInMillis = System.currentTimeMillis()
day.set(Calendar.DAY_OF_MONTH, i)
eventList.add(MyCalendarEvent(day, day,
DayItem.buildDayItemFromCal(day), null).setEventInstanceDay(day))
}
contentManager.loadItemsFromStart(eventList)
agenda_calendar_view.agendaView.agendaListView.setOnItemClickListener({ parent: AdapterView<*>, view: View, position: Int, id: Long ->
Toast.makeText(view.context, "item: ".plus(position), Toast.LENGTH_SHORT).show()
})
}
override fun onStop() {
super.onStop()
loadingTask?.cancel(true)
}
override fun getEmptyEventLayout() = R.layout.view_agenda_empty_event
override fun getEventLayout() = R.layout.view_agenda_event
override fun onDaySelected(dayItem: IDayItem) {
}
override fun onScrollToDate(calendar: Calendar) {
val lastPosition = agenda_calendar_view.agendaView.agendaListView.lastVisiblePosition + 1
val isSameDay = oldDate?.isSameDay(calendar) ?: false
if (isSameDay && lastPosition == CalendarManager.getInstance(this).events.size) {
if (!agenda_calendar_view.isCalendarLoading()) { // condition to prevent asynchronous requests
loadItemsAsync(false)
}
}
if (agenda_calendar_view.agendaView.agendaListView.firstVisiblePosition == 0) {
val minCal = Calendar.getInstance()
minCal.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH))
if (calendar.get(Calendar.DAY_OF_MONTH) == minCal.get(Calendar.DAY_OF_MONTH)) {
if (!agenda_calendar_view.isCalendarLoading()) { // condition to prevent asynchronous requests
loadItemsAsync(true)
}
}
}
oldDate = calendar
}
private fun loadItemsAsync(addFromStart: Boolean) {
loadingTask?.cancel(true)
loadingTask = LoadingTask(addFromStart)
loadingTask?.execute()
}
inner class LoadingTask(private val addFromStart: Boolean) : AsyncTask<Unit, Unit, Unit>() {
private val startMonthCal: Calendar = Calendar.getInstance()
private val endMonthCal: Calendar = Calendar.getInstance()
override fun onPreExecute() {
super.onPreExecute()
agenda_calendar_view.showProgress()
eventList.clear()
}
override fun doInBackground(vararg params: Unit?) {
Thread.sleep(2000) // simulating requesting json via rest api
if (addFromStart) {
if (startMonth == 0) {
startMonth = 11
} else {
startMonth--
}
startMonthCal.set(Calendar.MONTH, startMonth)
if (startMonth == 11) {
var year = startMonthCal.get(Calendar.YEAR)
startMonthCal.set(Calendar.YEAR, ++year)
}
for (i in 1..startMonthCal.getActualMaximum(Calendar.DAY_OF_MONTH)) {
val day = Calendar.getInstance(Locale.ENGLISH)
day.timeInMillis = System.currentTimeMillis()
day.set(Calendar.MONTH, startMonth)
day.set(Calendar.DAY_OF_MONTH, i)
if (endMonth == 11) {
day.set(Calendar.YEAR, day.get(Calendar.YEAR) - 1)
}
eventList.add(MyCalendarEvent(day, day,
DayItem.buildDayItemFromCal(day),
SampleEvent(name = "Awesome $i", description = "Event $i"))
.setEventInstanceDay(day))
}
} else {
if (endMonth >= 11) {
endMonth = 0
} else {
endMonth++
}
endMonthCal.set(Calendar.MONTH, endMonth)
if (endMonth == 0) {
var year = endMonthCal.get(Calendar.YEAR)
endMonthCal.set(Calendar.YEAR, ++year)
}
for (i in 1..endMonthCal.getActualMaximum(Calendar.DAY_OF_MONTH)) {
val day = Calendar.getInstance(Locale.ENGLISH)
day.timeInMillis = System.currentTimeMillis()
day.set(Calendar.MONTH, endMonth)
day.set(Calendar.DAY_OF_MONTH, i)
if (endMonth == 0) {
day.set(Calendar.YEAR, day.get(Calendar.YEAR) + 1)
}
if (i % 4 == 0) {
val day1 = Calendar.getInstance()
day1.timeInMillis = System.currentTimeMillis()
day1.set(Calendar.MONTH, endMonth)
day1.set(Calendar.DAY_OF_MONTH, i)
eventList.add(MyCalendarEvent(day, day,
DayItem.buildDayItemFromCal(day),
SampleEvent(name = "Awesome $i", description = "Event $i"))
.setEventInstanceDay(day))
}
eventList.add(MyCalendarEvent(day, day,
DayItem.buildDayItemFromCal(day),
SampleEvent(name = "Awesome $i", description = "Event $i"))
.setEventInstanceDay(day))
}
}
}
override fun onPostExecute(user: Unit) {
if (addFromStart) {
contentManager.loadItemsFromStart(eventList)
} else {
contentManager.loadFromEndCalendar(eventList)
}
agenda_calendar_view.hideProgress()
}
}
}