From e50c4f600fe4f17c3d11a2e0a294a850125b77ea Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Mon, 21 Nov 2016 19:30:08 +0100
Subject: [PATCH] fix #30, hide the fab when keyboard is shown

---
 .../com/simplemobiletools/notes/activities/MainActivity.kt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt
index 11d1334a..ac506bb0 100644
--- a/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/notes/activities/MainActivity.kt
@@ -38,9 +38,16 @@ class MainActivity : SimpleActivity(), OpenNoteDialog.OpenNoteListener {
         mDb = DBHelper.newInstance(applicationContext)
         mNotes = mDb.getNotes()
         updateSelectedNote(config.currentNoteId)
+
         notes_fab.setOnClickListener { displayNewNoteDialog() }
+        notes_fab.viewTreeObserver.addOnGlobalLayoutListener {
+            val heightDiff = notes_coordinator.rootView.height - notes_coordinator.height
+            notes_fab.visibility = if (heightDiff > dpToPx(this, 200f)) View.INVISIBLE else View.VISIBLE
+        }
     }
 
+    fun dpToPx(context: Context, valueInDp: Float) = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, valueInDp, context.resources.displayMetrics)
+
     override fun onResume() {
         super.onResume()
         invalidateOptionsMenu()