1 files changed, 71 insertions, 0 deletions
diff --git a/main/src/cgeo/geocaching/search/AutoCompleteAdapter.java b/main/src/cgeo/geocaching/search/AutoCompleteAdapter.java
new file mode 100644
index 0000000..15a45c6
--- /dev/null
+++ b/main/src/cgeo/geocaching/search/AutoCompleteAdapter.java
@@ -0,0 +1,71 @@
+package cgeo.geocaching.search;
+
+import org.apache.commons.lang3.StringUtils;
+
+import rx.functions.Func1;
+
+import android.content.Context;
+import android.widget.ArrayAdapter;
+import android.widget.Filter;
+
+/**
+ * The standard auto completion only matches user input at word boundaries. Therefore searching "est" will not match
+ * "test". This adapter matches everywhere.
+ *
+ */
+public class AutoCompleteAdapter extends ArrayAdapter<String> {
+
+    private String[] suggestions;
+    private final Func1<String, String[]> suggestionFunction;
+
+    public AutoCompleteAdapter(Context context, int textViewResourceId, final Func1<String, String[]> suggestionFunction) {
+        super(context, textViewResourceId);
+        this.suggestionFunction = suggestionFunction;
+    }
+
+    @Override
+    public int getCount() {
+        return suggestions.length;
+    }
+
+    @Override
+    public String getItem(int index) {
+        return suggestions[index];
+    }
+
+    @Override
+    public Filter getFilter() {
+        Filter filter = new Filter() {
+
+            @Override
+            protected FilterResults performFiltering(CharSequence constraint) {
+                FilterResults filterResults = new FilterResults();
+                if (constraint == null) {
+                    return filterResults;
+                }
+                String trimmed = StringUtils.trim(constraint.toString());
+                if (StringUtils.length(trimmed) >= 2) {
+                    String[] newResults = suggestionFunction.call(trimmed);
+
+                    // Assign the data to the FilterResults, but do not yet store in the global member.
+                    // Otherwise we might invalidate the adapter and cause an IllegalStateException.
+                    filterResults.values = newResults;
+                    filterResults.count = newResults.length;
+                }
+                return filterResults;
+            }
+
+            @Override
+            protected void publishResults(CharSequence constraint, FilterResults filterResults) {
+                if (filterResults != null && filterResults.count > 0) {
+                    suggestions = (String[]) filterResults.values;
+                    notifyDataSetChanged();
+                }
+                else {
+                    notifyDataSetInvalidated();
+                }
+            }
+        };
+        return filter;
+    }
+}
+\ No newline at end of file