AutoCompleteTextView自定義ArrayAdapter顯示整個ArrayList而不是單獨的字符串

Question

我正在嘗試制作一個AutoCompleteTextView來顯示來自Google的建議，但是就像標題中所說的那樣； 整個ArrayList被顯示為一個建議，而不是單個建議。

如何顯示單獨的字符串，是否將它們錯誤地添加到適配器中？

這是我自定義的ArrayAdapter

class AutoCompleteAdapter extends ArrayAdapter<String> implements Filterable {
private ArrayList<String> data;
private static final String BASE_URL = "http://suggestqueries.google.com/complete/search?";
private static final String CLIENT = "client=firefox"; // firefox = JSON | toolbar = toolbar
private static final String SEARCH_URL = BASE_URL + CLIENT + "&q=";
private final static String UTF8 = "UTF-8";

AutoCompleteAdapter(@NonNull Context context, @LayoutRes int resource) {
    super(context, resource);
    this.data = new ArrayList<>();
}

@Override
public int getCount() {
    return data.size();
}

@Nullable
@Override
public String getItem(int index) {
    return data.get(index);
}

@NonNull
@Override
public Filter getFilter() {
    return new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            if (constraint != null) {
                HttpURLConnection conn = null;
                InputStream input = null;
                try {
                    URL url = new URL(SEARCH_URL + constraint.toString());
                    conn = (HttpURLConnection) url.openConnection();
                    input = conn.getInputStream();
                    InputStreamReader reader = new InputStreamReader(input, UTF8);
                    BufferedReader buffer = new BufferedReader(reader, 8192);
                    StringBuilder builder = new StringBuilder();
                    String line;
                    while ((line = buffer.readLine()) != null) {
                        builder.append(line);
                    }
                    JSONArray terms = new JSONArray(builder.toString());
                    ArrayList<String> suggestions = new ArrayList<>();
                    for (int i = 0; i < terms.length(); i++) {
                        String term = terms.getString(i);
                        suggestions.add(term);
                    }
                    results.values = suggestions;
                    results.count = suggestions.size();
                    data = suggestions;
                } catch (Exception ex) {
                    ex.printStackTrace();
                } finally {
                    if (input != null) {
                        try {
                            input.close();
                        } catch (Exception ex) {
                            ex.printStackTrace();
                        }
                    }
                    if (conn != null) conn.disconnect();
                }
            }
            return results;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            if (results != null && results.count > 0) {
                notifyDataSetChanged();
            } else notifyDataSetInvalidated();
        }
    };
}

}

我做了一些搜索，看看其他人是否在同一件事上遇到了麻煩，但是我找不到任何相關的東西。

我已經在這上面拉了好多年了。.預先謝謝您。

Answer 1

看起來您看到的響應是“ [search_term，[result1，result2 ...]]”，因此，當您進行解析時，將得到長度為2的數組：“ [search_term，everything_else]”。 下面分析了您感興趣的“ everything_else”。 我建議您僅以此為起點，因為您可能需要執行一些其他錯誤檢查：

    JSONArray terms = new JSONArray(builder.toString());
    terms = new JSONArray(terms.get(1).toString());

Answer 2

      please check this parsing...
      JSONArray terms = new JSONArray(builder.toString());
                ArrayList<String> suggestions = new ArrayList<>();
                for (int i = 0; i < terms.length(); i++) {
                    String term = terms.getString(i);
                    suggestions.add(term);
                }