MainActivity: inline nested function for dynamic menu

Make the UI more flexible and
slightly easier to understand.

app/src/main/java/it/danieleverducci/lunatracker/MainActivity.kt

@@ -454,11 +454,6 @@ class MainActivity : AppCompatActivity() {
             return (timeBeginUnix <= timeEndUnix) && (timeEndUnix - timeBeginUnix) < (24 * 60 * 60)
         }
 
-        // prevent printing of seconds
-        fun adjustToMinute(unixTime: Long): Long {
-            return unixTime - (unixTime % 60)
-        }
-
         fun updateFields() {
             datePickerBegin.text = DateUtils.formatDateTime(sleepStart)
             datePickerEnd.text = DateUtils.formatDateTime(sleepEnd)
@@ -483,13 +478,13 @@ class MainActivity : AppCompatActivity() {
             datePickerEnd.setTextColor(if (isValidTime(sleepEnd)) { currentDurationTextColor } else { invalidDurationTextColor })
         }
 
-        val pickedDateTimeBegin = dateTimePicker(event.time, datePickerBegin) { time: Long ->
-            sleepStart = adjustToMinute(time)
+        val pickedDateTimeBegin = dateTimePicker(event.time, datePickerBegin) { pickedTime: Long ->
+            sleepStart = pickedTime
             updateFields()
         }
 
-        val pickedDateTimeEnd = dateTimePicker(event.time + event.quantity, datePickerEnd) { time: Long ->
-            sleepEnd = adjustToMinute(time)
+        val pickedDateTimeEnd = dateTimePicker(event.time + event.quantity, datePickerEnd) { pickedTime: Long ->
+            sleepEnd = pickedTime
             updateFields()
         }
 
@@ -507,8 +502,8 @@ class MainActivity : AppCompatActivity() {
             d.setMessage(event.getDialogMessage(this))
         }
 
-        sleepStart = adjustToMinute(pickedDateTimeBegin.time.time / 1000)
-        sleepEnd = adjustToMinute(pickedDateTimeEnd.time.time / 1000)
+        sleepStart = pickedDateTimeBegin.time.time / 1000
+        sleepEnd = pickedDateTimeEnd.time.time / 1000
 
         updateFields()
 
@@ -528,8 +523,7 @@ class MainActivity : AppCompatActivity() {
         }
 
         durationNowButton.setOnClickListener {
-            val now = System.currentTimeMillis() / 1000
-            sleepEnd = adjustToMinute(now)
+            sleepEnd = System.currentTimeMillis() / 1000
             updateFields()
         }