Increase LruCache capability to 512 MB

app/src/main/java/com/hippo/glgallery/GalleryProvider.java

@@ -237,11 +237,10 @@ public abstract class GalleryProvider {
 
     private static class ImageCache extends LruCache<Integer, ImageWrapper> {
 
-        private static final long MAX_CACHE_SIZE = 128 * 1024 * 1024;
-        private static final long MIN_CACHE_SIZE = 32 * 1024 * 1024;
+        private static final int CACHE_SIZE = 512 * 1024 * 1024;
 
         public ImageCache() {
-            super((int) MathUtils.clamp(OSUtils.getTotalMemory() / 16, MIN_CACHE_SIZE, MAX_CACHE_SIZE));
+            super(CACHE_SIZE);
         }
 
         public void add(Integer key, ImageWrapper value) {