From c9b46bf0b32d0f56be5f1a6a9631b93ac97cb2c2 Mon Sep 17 00:00:00 2001
From: Erik Johansson <erik@ejohansson.se>
Date: Sun, 21 Jan 2018 22:45:07 +0100
Subject: [PATCH] Hide left/right button when reaching first/last measurement

---
 .../gui/activities/DataEntryActivity.java         | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/android_app/app/src/main/java/com/health/openscale/gui/activities/DataEntryActivity.java b/android_app/app/src/main/java/com/health/openscale/gui/activities/DataEntryActivity.java
index 9a143e8b..b10f8d3c 100644
--- a/android_app/app/src/main/java/com/health/openscale/gui/activities/DataEntryActivity.java
+++ b/android_app/app/src/main/java/com/health/openscale/gui/activities/DataEntryActivity.java
@@ -178,6 +178,9 @@ public class DataEntryActivity extends Activity {
                 ScaleMeasurement[] tupleScaleData = openScale.getTupleScaleData(id);
                 previousMeasurement = tupleScaleData[0];
                 scaleMeasurement = tupleScaleData[1].clone();
+
+                btnLeft.setVisibility(tupleScaleData[0] != null ? View.VISIBLE : View.INVISIBLE);
+                btnRight.setVisibility(tupleScaleData[2] != null ? View.VISIBLE : View.INVISIBLE);
             }
         } else {
             setViewMode(MeasurementView.MeasurementViewMode.ADD);
@@ -214,8 +217,10 @@ public class DataEntryActivity extends Activity {
                 btnOk.setVisibility(View.VISIBLE);
                 btnAdd.setVisibility(View.GONE);
                 imageViewDelete.setVisibility(View.VISIBLE);
-                btnLeft.setVisibility(View.VISIBLE);
-                btnRight.setVisibility(View.VISIBLE);
+                if (scaleMeasurement == null) {
+                    btnLeft.setVisibility(View.VISIBLE);
+                    btnRight.setVisibility(View.VISIBLE);
+                }
                 expandButton.setVisibility(View.VISIBLE);
                 switchEditMode.setVisibility(View.VISIBLE);
                 dateTimeVisibility = View.GONE;
@@ -224,8 +229,10 @@ public class DataEntryActivity extends Activity {
                 btnOk.setVisibility(View.VISIBLE);
                 btnAdd.setVisibility(View.GONE);
                 imageViewDelete.setVisibility(View.VISIBLE);
-                btnLeft.setVisibility(View.VISIBLE);
-                btnRight.setVisibility(View.VISIBLE);
+                if (scaleMeasurement == null) {
+                    btnLeft.setVisibility(View.VISIBLE);
+                    btnRight.setVisibility(View.VISIBLE);
+                }
                 expandButton.setVisibility(View.VISIBLE);
                 switchEditMode.setVisibility(View.VISIBLE);
                 break;