Clear overlays cache to help with bitmap memory pressure

The overlays cache can be rebuilt once per activity view. We can free
the bitmap memory when we are not displaying overlays.

1 files changed, 5 insertions, 3 deletions

diff --git a/main/src/cgeo/geocaching/maps/CGeoMap.java b/main/src/cgeo/geocaching/maps/CGeoMap.java
index 79ea44a..69c3530 100644
--- a/main/src/cgeo/geocaching/maps/CGeoMap.java
+++ b/main/src/cgeo/geocaching/maps/CGeoMap.java
@@ -174,7 +174,7 @@ public class CGeoMap extends AbstractMap implements OnMapDragListener, ViewFacto
     private static final int[][] INSET_USERMODIFIEDCOORDS = { { 21, 28, 0, 0 }, { 19, 25, 0, 0 } }; // bottom right, 12x12 / 26x26
     private static final int[][] INSET_PERSONALNOTE = { { 0, 28, 21, 0 }, { 0, 25, 19, 0 } }; // bottom left, 12x12 / 26x26
 
-    private static SparseArray<LayerDrawable> overlaysCache = new SparseArray<LayerDrawable>();
+    private SparseArray<LayerDrawable> overlaysCache = new SparseArray<LayerDrawable>();
     private int cachesCnt = 0;
     /** List of caches in the viewport */
     private LeastRecentlyUsedSet<cgCache> caches = null;
@@ -540,6 +540,8 @@ public class CGeoMap extends AbstractMap implements OnMapDragListener, ViewFacto
             mapView.destroyDrawingCache();
         }
 
+        overlaysCache.clear();
+
         super.onPause();
     }
 
@@ -1664,7 +1666,7 @@ public class CGeoMap extends AbstractMap implements OnMapDragListener, ViewFacto
                     .append(cache.getListId() > 0)
                     .toHashCode();
 
-            final LayerDrawable ldFromCache = CGeoMap.overlaysCache.get(hashcode);
+            final LayerDrawable ldFromCache = overlaysCache.get(hashcode);
             if (ldFromCache != null) {
                 item.setMarker(ldFromCache);
                 return item;
@@ -1722,7 +1724,7 @@ public class CGeoMap extends AbstractMap implements OnMapDragListener, ViewFacto
                 ld.setLayerInset(index++, inset[0], inset[1], inset[2], inset[3]);
             }
 
-            CGeoMap.overlaysCache.put(hashcode, ld);
+            overlaysCache.put(hashcode, ld);
 
             item.setMarker(ld);
             return item;