fix: `minimumDate`/`maximumDate` issue in `datetime` mode that might occur when min/max includes hours, minutes or seconds (#740)

.maestro/maximum-date.yml

@@ -111,3 +111,21 @@ tags:
 
 - runFlow: utils/swipe-wheel-3.yml
 - assertVisible: '2000-01-01 00:00:00'
+
+######### describe: minimumDate/maximumDate combinations
+- runFlow: utils/reset.yml
+
+## test: correct number of days should be selectable even if min/max days are not set to full days
+
+- runFlow:
+    file: utils/change-minimum-date.yml
+    env:
+      VALUE: '2000-01-01 00:00:01'
+
+- runFlow:
+    file: utils/change-maximum-date.yml
+    env:
+      VALUE: '2000-01-02 00:00:00'
+
+- runFlow: utils/swipe-wheel-1.yml
+- assertVisible: '2000-01-02 00:00:00'

android/src/main/java/com/henninghall/date_picker/wheels/DayWheel.java

@@ -32,12 +32,14 @@ public class DayWheel extends Wheel {
         Calendar cal = getStartCal();
         Calendar endCal = getEndCal();
 
-        while (!cal.after(endCal)){
+        while (true){
             String value = getValue(cal);
             values.add(value);
             displayValues.put(value, getDisplayValue(cal));
             if(Utils.isToday(cal)) todayValue = value;
             cal.add(Calendar.DATE, 1);
+            Calendar startOfCurrentDay = toStartOfDay((Calendar) cal.clone());
+            if(startOfCurrentDay.after(endCal)) break;
         }
 
         return values;
@@ -75,6 +77,14 @@ public class DayWheel extends Wheel {
         return cal;
     }
 
+    private Calendar toStartOfDay(Calendar cal){
+        cal.set(Calendar.HOUR_OF_DAY, 0);
+        cal.set(Calendar.MINUTE, 0);
+        cal.set(Calendar.SECOND, 0);
+        cal.set(Calendar.MILLISECOND, 0);
+        return cal;
+    }
+
     private String getValue(Calendar cal){
         return format.format(cal.getTime());
     }