Open ashik991 opened 3 years ago
MagdalineMbugua
commented
3 years ago Same here. I encounter the same issue: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object java.util.Map.get(java.lang.Object)' on a null object reference at org.naishadhparmar.zcustomcalendar.CustomCalendar$3.onClick(CustomCalendar.java:275)
shahina-almarwan
commented
2 years ago Any solution for this?
subhsis
commented
2 years ago OnNavigationButtonClickedListener use whichbutton you click after that implement desired view that you want
sohail756
commented
2 years ago OnNavigationButtonClickedListener use whichbutton you click after that implement desired view that you want
It would be very nice of you if you share this specific code.
subhsis
commented
2 years ago @Override public Map<Integer, Object>[] onNavigationButtonClicked(int whichButton, Calendar newMonth) { Map<Integer, Object>[] arr = new Map[2];
if (whichButton==CustomCalendar.NEXT){
// view you want
}if (whichButton==CustomCalendar.PREVIOUS){
// view you want
}
return arr;
}--> call calendar instance to get the current month and implement on view as per your requirement.
shamali1013
commented
2 years ago I get this error, "Attempt to invoke interface method 'java.lang.Object java.util.Map.get(java.lang.Object)' on a null object reference at org.naishadhparmar.zcustomcalendar.CustomCalendar$3.onClick(CustomCalendar.java:275)", when I navigate to the next month and click on a date.
I encountered the same issue because i was calling this listener directly without using hashmap or simply i can say without defining properties and setting these to hashmap. I defined one property ("default") ,then this listener worked.
Dyenal
commented
1 year ago override fun onNavigationButtonClicked( whichButton: Int, newMonth: Calendar? ): Array<MutableMap<Int, Any>?> { val arr = arrayOfNulls<MutableMap<Int, Any>>(2)
val currentMonth: Month = LocalDate.now().month
val currentYear: Int = LocalDate.now().year
if (newMonth != null) {
if (newMonth.get(Calendar.MONTH)+1>currentMonth.value){
customeCalander.setNavigationButtonEnabled(CustomCalendar.PREVIOUS,true)
}else{
if (newMonth.get(Calendar.YEAR)==currentYear)
customeCalander.setNavigationButtonEnabled(CustomCalendar.PREVIOUS,false)
else
customeCalander.setNavigationButtonEnabled(CustomCalendar.PREVIOUS,true)
}
}
when (newMonth?.get(Calendar.MONTH)) {
Calendar.JANUARY -> {
arr[0] = HashMap<Int, Any>().apply {
}
arr[1] = null // Optional: This is the map linking a date to its tag.
}
Calendar.FEBRUARY -> {
arr[0] = HashMap<Int, Any>().apply {
}
arr[1] = null // Optional: This is the map linking a date to its tag.
}
Calendar.MARCH -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
Calendar.APRIL -> {
arr[0] = HashMap<Int, Any>().apply {
}
arr[1] = null // Optional: This is the map linking a date to its tag.
}
Calendar.JULY -> {
arr[0] = HashMap<Int, Any>().apply {
}
arr[1] = null // Optional: This is the map linking a date to its tag.
}
Calendar.AUGUST -> {
arr[0] = HashMap<Int, Any>().apply {
}
arr[1] = null // Optional: This is the map linking a date to its tag.
}
Calendar.JUNE -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
Calendar.MAY -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
Calendar.SEPTEMBER -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
Calendar.OCTOBER -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
Calendar.NOVEMBER -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
Calendar.DECEMBER -> {
arr[0] = HashMap<Int, Any>().apply {
}
}
}
return arr
}
try this code...
I get this error, "Attempt to invoke interface method 'java.lang.Object java.util.Map.get(java.lang.Object)' on a null object reference at org.naishadhparmar.zcustomcalendar.CustomCalendar$3.onClick(CustomCalendar.java:275)", when I navigate to the next month and click on a date.