From cd46ec40372030e659a8904db411fafd520e8d41 Mon Sep 17 00:00:00 2001
From: Alexey Kuznetsov <axet@me.com>
Date: Tue, 29 Mar 2016 16:07:33 +0300
Subject: [PATCH] add db indicator

---
 .../github/axet/audiorecorder/widgets/PitchView.java  | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/github/axet/audiorecorder/widgets/PitchView.java b/app/src/main/java/com/github/axet/audiorecorder/widgets/PitchView.java
index 7471826..e925289 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/widgets/PitchView.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/widgets/PitchView.java
@@ -252,8 +252,15 @@ public class PitchView extends ViewGroup {
         }
 
         void updateText() {
-            int end = getEnd();
-            setText(Integer.toString(data.get(end).intValue()) + " dB");
+            // we need to put empty streing to measure text Paint height
+            String str = "";
+
+            if (data.size() > 0) {
+                int end = getEnd();
+                str = Integer.toString(data.get(end).intValue()) + " dB";
+            }
+
+            setText(str);
         }
 
         @Override