Question

我使用following this tutorial的常规自动填充edittext在我的应用中实现了地点api，但是当我在手机上输入文本时，没有返回搜索结果。既没有抛出异常也没有获得搜索结果。我在开发者控制台中启用了places api，并尝试了服务器和android api密钥。有人能指出我的问题吗？经过调试，我了解到textview正在获取前2个字母并将其传递给数组适配器类并且不返回任何内容。我该如何改变这种行为？

<meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="MY-API-KEY-HERE" />

public static ArrayList autocomplete(String input) {
        ArrayList resultList = null;
        HttpURLConnection conn = null;
        StringBuilder jsonResults = new StringBuilder();
        try {
            StringBuilder sb = new StringBuilder(PLACES_API + TYPE_AUTOCOMPLETE + OUT_JSON);
            sb.append("?key=" + API_KEY);
            sb.append("&components=country:us");
            sb.append("&input=" + URLEncoder.encode(input, "utf8"));
            URL url = new URL(sb.toString());
            conn = (HttpURLConnection) url.openConnection();
            InputStreamReader in = new InputStreamReader(conn.getInputStream());

            // Load the results into a StringBuilder
            int read;
            char[] buff = new char[1024];
            while ((read = in.read(buff)) != -1) {
                jsonResults.append(buff, 0, read);
            }
        } catch (MalformedURLException mue) {
            //Error processing Places API URL
            Log.e("TAG", mue.toString());
            mue.printStackTrace();
            return resultList;
        } catch (IOException ioe) {
            //Error cannecting to Places API
            Log.e("TAG", ioe.toString());
            ioe.printStackTrace();
            return resultList;
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }

        try {
            // Create a JSON object hierarchy from the results
            JSONObject jsonObj = new JSONObject(jsonResults.toString());
            JSONArray predsJsonArray = jsonObj.getJSONArray("predictions");

            // Extract the Place descriptions from the results
            resultList = new ArrayList(predsJsonArray.length());
            for (int i = 0; i < predsJsonArray.length(); i++) {
                //System.out.println(predsJsonArray.getJSONObject(i).getString("description"));
                //System.out.println("============================================================");
                resultList.add(predsJsonArray.getJSONObject(i).getString("description"));
            }
        } catch (JSONException je) {
            //cannot process JSON results
            Log.e("TAG", je.toString());
            je.printStackTrace();
        } catch (Exception exe){
            Log.e("TAG", exe.toString());
            exe.printStackTrace();
        }
        return resultList;
    }

这是xml文件中的自动完成文本视图。

<AutoCompleteTextView
            android:id="@+id/autocomplete"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ems="10"
            android:layout_gravity="center_horizontal"
            android:gravity="center_horizontal"
            android:completionThreshold="5"/>

Answer 1

事实证明，Google并不喜欢我的旧api密钥，这对我的代码的其他部分工作正常。我生成了一个新的api密钥，一切正常。

Android放置api实现不会返回结果

1 个答案: