unselect all items at day view on swipe sideways

app/src/main/kotlin/com/simplemobiletools/calendar/activities/DayActivity.kt

@@ -109,6 +109,7 @@ class DayActivity : SimpleActivity(), NavigationListener, ViewPager.OnPageChange
 
     override fun onPageSelected(position: Int) {
         mPagerPos = position
+        (view_pager.adapter as MyDayPagerAdapter).destroyMultiselector()
     }
 
     override fun goLeft() {

app/src/main/kotlin/com/simplemobiletools/calendar/adapters/MyDayPagerAdapter.kt

@@ -33,4 +33,8 @@ class MyDayPagerAdapter(fm: FragmentManager, private val mCodes: List<String>, p
             mFragments[pos + i]?.checkEvents()
         }
     }
+
+    fun destroyMultiselector() {
+        DayEventsAdapter.actMode?.finish()
+    }
 }