diff options
Diffstat (limited to 'main/src/cgeo/geocaching/search/AutoCompleteAdapter.java')
| -rw-r--r-- | main/src/cgeo/geocaching/search/AutoCompleteAdapter.java | 69 |
1 files changed, 69 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..c314bbe --- /dev/null +++ b/main/src/cgeo/geocaching/search/AutoCompleteAdapter.java @@ -0,0 +1,69 @@ +package cgeo.geocaching.search; + +import org.apache.commons.lang3.StringUtils; + +import rx.util.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[] results; + 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 results.length; + } + + @Override + public String getItem(int index) { + return results[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) { + results = suggestionFunction.call(trimmed); + + // Assign the data to the FilterResults + filterResults.values = results; + filterResults.count = results.length; + } + return filterResults; + } + + @Override + protected void publishResults(CharSequence constraint, FilterResults results) { + if (results != null && results.count > 0) { + notifyDataSetChanged(); + } + else { + notifyDataSetInvalidated(); + } + } + }; + return filter; + } +}
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