From 64e686e64ebf833cb3af693d13cdb5b1497fe546 Mon Sep 17 00:00:00 2001
From: Andreas Schildbach <andreas@schildbach.de>
Date: Fri, 9 Nov 2018 15:27:37 +0100
Subject: [PATCH] OeffiMapView: Define sane minimum and maximum zoom levels.

---
 oeffi/src/de/schildbach/oeffi/Constants.java    | 2 ++
 oeffi/src/de/schildbach/oeffi/OeffiMapView.java | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/oeffi/src/de/schildbach/oeffi/Constants.java b/oeffi/src/de/schildbach/oeffi/Constants.java
index a912705..e972eb8 100644
--- a/oeffi/src/de/schildbach/oeffi/Constants.java
+++ b/oeffi/src/de/schildbach/oeffi/Constants.java
@@ -47,6 +47,8 @@ public class Constants {
     public static final int MAX_NUMBER_OF_STOPS = 150;
     public static final int MAX_HISTORY_ENTRIES = 50;
     public static final float BEARING_ACCURACY_THRESHOLD = 0.5f;
+    public static final double MAP_MIN_ZOOM_LEVEL = 3.0;
+    public static final double MAP_MAX_ZOOM_LEVEL = 18.0;
     public static final double INITIAL_MAP_ZOOM_LEVEL_NETWORK = 12.0;
     public static final double INITIAL_MAP_ZOOM_LEVEL = 17.0;
     public static final int MAX_TRIES_ON_IO_PROBLEM = 2;
diff --git a/oeffi/src/de/schildbach/oeffi/OeffiMapView.java b/oeffi/src/de/schildbach/oeffi/OeffiMapView.java
index 78e9cee..fed5986 100644
--- a/oeffi/src/de/schildbach/oeffi/OeffiMapView.java
+++ b/oeffi/src/de/schildbach/oeffi/OeffiMapView.java
@@ -111,6 +111,8 @@ public class OeffiMapView extends MapView {
         setMultiTouchControls(true);
         setTilesScaledToDpi(true);
         getController().setZoom(Constants.INITIAL_MAP_ZOOM_LEVEL);
+        setMinZoomLevel(Constants.MAP_MIN_ZOOM_LEVEL);
+        setMaxZoomLevel(Constants.MAP_MAX_ZOOM_LEVEL);
 
         getOverlays().add(new Overlay() {
             @Override