AutoCompleteTextView在ListView中所示一样，尤伯杯地方谷歌 [英] AutoCompleteTextView with Google Places shown in ListView just like Uber
问题描述
我需要让屏幕与此类似。我认为它有autocompletetextview和ListView显示返回的结果。谷歌广场API是这里自动使用建议的地方和ListView适配器进行相应的更新。
请任何形式的帮助是AP preciated。
先谢谢了。
I need to make screen similar to this. I think it has autocompletetextview and listview to display returned results. Google Place API is used here to auto suggest places and listview adapter is updated accordingly. Please any kind of help is appreciated. Thanks in advance.
经过对Android的自动完成样本项目的地方了。但它不具有任何列表视图中显示的结果。相反，它示出了在autocompletetextview喷丝结果。任何修改，我们可以与项目办
Checked android sample project on AutoComplete for places too. But it is not having any listview to display results. Instead it shows results in autocompletetextview spinner. Any modification we can do with that project
推荐答案
您可以准确地使用的EditText 和的ListView ，而不是 web服务。以下是code： AutoCompleteTextView 。字符是在的EditText 在此基础上在的ListView结果通过调用<$ C过滤上输入$ C> GooglePlacesAutomplete
You can achieve this exactly by using EditText and ListView, and not AutoCompleteTextView. Characters are entered in the EditText on the basis of which the results in the ListView are filtered by calling the GooglePlacesAutomplete webservice. The following is the code:
这是您的layoout文件（的EditText 与的ListView ）
This is your layoout file ( EditText with ListView )
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
tools:context="com.example.siddarthshikhar.liftsharesample.EnterLocationActivity">
<EditText
android:paddingLeft="@dimen/activity_horizontal_margin"
android:layout_width="250dp"
android:layout_height="35dp"
android:textColorHint="#ffffff"
android:id="@+id/edEnterLocation"
android:textColor="#ffffff"
android:textSize="@dimen/abc_text_size_medium_material"
android:layout_alignParentLeft="true"
android:backgroundTint="#00000000"
android:gravity="start|center">
<requestFocus />
</EditText>
<ListView android:id="@+id/listView1" android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/filterLayout"/>
</RelativeLayout>
在您相应的活动，访问此的EditText和应用筛选。你必须使用 GooglePlacesAutompleteAdapter 这一点。
In your corresponding Activity, access this EditText and apply Filterable. You have to use GooglePlacesAutompleteAdapter for this.
以下是 GooglePlacesAutompleteAdapter ：
public class GooglePlacesAutocompleteAdapter extends ArrayAdapter implements Filterable {
private static final String LOG_TAG = "Google Places Autocomplete";
private static final String PLACES_API_BASE = "https://maps.googleapis.com/maps/api/place";
private static final String TYPE_AUTOCOMPLETE = "/autocomplete";
private static final String OUT_JSON = "/json";
private static final String API_KEY = "your_api_key";
private ArrayList<String> resultList;
private Context context = null;
public GooglePlacesAutocompleteAdapter(Context context, int textViewResourceId) {
super(context, textViewResourceId);
this.context = context;
}
@Override
public int getCount() {
if(resultList != null)
return resultList.size();
else
return 0;
}
@Override
public String getItem(int index) {
return resultList.get(index);
}
public ArrayList<String> autocomplete(String input) {
ArrayList<String> resultList = null;
ArrayList<String> descriptionList = null;
HttpURLConnection conn = null;
StringBuilder jsonResults = new StringBuilder();
try {
StringBuilder sb = new StringBuilder(PLACES_API_BASE + TYPE_AUTOCOMPLETE + OUT_JSON);
sb.append("?key=" + API_KEY);
sb.append("&components=country:in");
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 e) {
Log.e(LOG_TAG, "Error processing Places API URL", e);
return resultList;
} catch (IOException e) {
Log.e(LOG_TAG, "Error connecting to Places API", e);
return resultList;
} finally {
if (conn != null) {
conn.disconnect();
}
}
try {
// Create a JSON object hierarchy from the results
Log.d("yo",jsonResults.toString());
JSONObject jsonObj = new JSONObject(jsonResults.toString());
JSONArray predsJsonArray = jsonObj.getJSONArray("predictions");
// Extract the Place descriptions from the results
resultList = new ArrayList(predsJsonArray.length());
descriptionList = new ArrayList(predsJsonArray.length());
for (int i = 0; i < predsJsonArray.length(); i++) {
resultList.add(predsJsonArray.getJSONObject(i).toString());
descriptionList.add(predsJsonArray.getJSONObject(i).getString("description"));
}
saveArray(resultList.toArray(new String[resultList.size()]), "predictionsArray", getContext());
} catch (JSONException e) {
Log.e(LOG_TAG, "Cannot process JSON results", e);
}
return descriptionList;
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults filterResults = new FilterResults();
if (constraint != null) {
// Retrieve the autocomplete results.
resultList = autocomplete(constraint.toString());
// Assign the data to the FilterResults
filterResults.values = resultList;
filterResults.count = resultList.size();
}
return filterResults;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count > 0) {
setImageVisibility();
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
};
return filter;
}
}
接入适配器和适用用getFilter（）到的EditText 在相应的活动。以下是在活动中加入相应的创建你的布局较早的：
Access the adapter and apply getFilter() to the EditText in the corresponding Activity. The following is to be added in your Activity corresponding to your layout created earlier:
dataAdapter = new GooglePlacesAutocompleteAdapter(EnterLocationActivity.this, R.layout.adapter_google_places_autocomplete){
listView = (ListView) findViewById(R.id.listView1);
// Assign adapter to ListView
listView.setAdapter(dataAdapter);
//enables filtering for the contents of the given ListView
listView.setTextFilterEnabled(true);
etEnterLocation.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
dataAdapter.getFilter().filter(s.toString());
}
});
这应该让你去。只要你想，你可以修改你的布局。这基本上加载在 ListView中自动完成数据。
This should get you going. You can modify your layout as you want. This basically loads the autocomplete data in a ListView.
这篇关于AutoCompleteTextView在ListView中所示一样，尤伯杯地方谷歌的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
