【发布时间】：2016-02-22 09:58:31
【问题描述】：
我正在尝试使用 Google API 开发带有自动完成文本视图的地图。
我试过这个教程here
但当我尝试获取 API 时，我总是会收到此错误：
{
"error_message" : "This API project is not authorized to use this API. Please ensure that this API is activated in the APIs Console: Learn more: https://code.google.com/apis/console",
"predictions" : [],
"status" : "REQUEST_DENIED"
}
我试图找到解决方案，我尝试了所有解决方案，例如使用 浏览器密钥、服务器密钥、启用 google 地方和地图，删除并重新创建项目，但我仍然收到错误，这是我的代码：
public class MainActivity extends FragmentActivity {
AutoCompleteTextView atvPlaces;
DownloadTask placesDownloadTask;
DownloadTask placeDetailsDownloadTask;
ParserTask placesParserTask;
ParserTask placeDetailsParserTask;
GoogleMap googleMap;
final int PLACES=0;
final int PLACES_DETAILS=1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Getting a reference to the AutoCompleteTextView
atvPlaces = (AutoCompleteTextView) findViewById(R.id.atv_places);
atvPlaces.setThreshold(1);
// Adding textchange listener
atvPlaces.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// Creating a DownloadTask to download Google Places matching "s"
placesDownloadTask = new DownloadTask(PLACES);
// Getting url to the Google Places Autocomplete api
String url = getAutoCompleteUrl(s.toString());
// Start downloading Google Places
// This causes to execute doInBackground() of DownloadTask class
placesDownloadTask.execute(url);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
atvPlaces.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
atvPlaces.showDropDown();
return false;
}
});
// Setting an item click listener for the AutoCompleteTextView dropdown list
atvPlaces.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int index,
long id) {
ListView lv = (ListView) arg0;
SimpleAdapter adapter = (SimpleAdapter) arg0.getAdapter();
HashMap<String, String> hm = (HashMap<String, String>) adapter.getItem(index);
// Creating a DownloadTask to download Places details of the selected place
placeDetailsDownloadTask = new DownloadTask(PLACES_DETAILS);
// Getting url to the Google Places details api
String url = getPlaceDetailsUrl(hm.get("reference"));
// Start downloading Google Place Details
// This causes to execute doInBackground() of DownloadTask class
placeDetailsDownloadTask.execute(url);
}
});
}
private String getAutoCompleteUrl(String place){
// Obtain browser key from https://code.google.com/apis/console
String key = "key=<INSERT API KEY HERE>";
// place to be be searched
String input = "input="+place;
// place type to be searched
String types = "types=geocode";
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = input+"&"+types+"&"+sensor+"&"+key;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/place/autocomplete/"+output+"?"+parameters;
return url;
}
private String getPlaceDetailsUrl(String ref){
// Obtain browser key from https://code.google.com/apis/console
String key = "key=<INSERT API KEY HERE>";
// reference of place
String reference = "reference="+ref;
// Sensor enabled
String sensor = "sensor=false";
// Building the parameters to the web service
String parameters = reference+"&"+sensor+"&"+key;
// Output format
String output = "json";
// Building the url to the web service
String url = "https://maps.googleapis.com/maps/api/place/details/"+output+"?"+parameters;
return url;
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException{
String data = "";
InputStream iStream = null;
HttpURLConnection urlConnection = null;
try{
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while( ( line = br.readLine()) != null){
sb.append(line);
}
data = sb.toString();
br.close();
}catch(Exception e){
Log.d("Exception while downloading url", e.toString());
}finally{
iStream.close();
urlConnection.disconnect();
}
return data;
}
// Fetches data from url passed
private class DownloadTask extends AsyncTask<String, Void, String>{
private int downloadType=0;
// Constructor
public DownloadTask(int type){
this.downloadType = type;
}
@Override
protected String doInBackground(String... url) {
// For storing data from web service
String data = "";
try{
// Fetching the data from web service
data = downloadUrl(url[0]);
}catch(Exception e){
Log.d("Background Task",e.toString());
}
return data;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
switch(downloadType){
case PLACES:
// Creating ParserTask for parsing Google Places
placesParserTask = new ParserTask(PLACES);
// Start parsing google places json data
// This causes to execute doInBackground() of ParserTask class
placesParserTask.execute(result);
break;
case PLACES_DETAILS :
// Creating ParserTask for parsing Google Places
placeDetailsParserTask = new ParserTask(PLACES_DETAILS);
// Starting Parsing the JSON string
// This causes to execute doInBackground() of ParserTask class
placeDetailsParserTask.execute(result);
}
}
}
/** A class to parse the Google Places in JSON format */
private class ParserTask extends AsyncTask<String, Integer, List<HashMap<String,String>>>{
int parserType = 0;
public ParserTask(int type){
this.parserType = type;
}
@Override
protected List<HashMap<String, String>> doInBackground(String... jsonData) {
JSONObject jObject;
List<HashMap<String, String>> list = null;
try{
jObject = new JSONObject(jsonData[0]);
switch(parserType){
case PLACES :
PlaceJSONParser placeJsonParser = new PlaceJSONParser();
// Getting the parsed data as a List construct
list = placeJsonParser.parse(jObject);
break;
case PLACES_DETAILS :
PlaceDetailsJSONParser placeDetailsJsonParser = new PlaceDetailsJSONParser();
// Getting the parsed data as a List construct
list = placeDetailsJsonParser.parse(jObject);
}
}catch(Exception e){
Log.d("Exception",e.toString());
}
return list;
}
@Override
protected void onPostExecute(List<HashMap<String, String>> result) {
switch(parserType){
case PLACES :
String[] from = new String[] { "description"};
int[] to = new int[] { android.R.id.text1 };
// Creating a SimpleAdapter for the AutoCompleteTextView
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), result, android.R.layout.simple_list_item_1, from, to);
// Setting the adapter
atvPlaces.setAdapter(adapter);
break;
case PLACES_DETAILS :
HashMap<String, String> hm = result.get(0);
// Getting latitude from the parsed data
double latitude = Double.parseDouble(hm.get("lat"));
// Getting longitude from the parsed data
double longitude = Double.parseDouble(hm.get("lng"));
// Getting reference to the SupportMapFragment of the activity_main.xml
SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
// Getting GoogleMap from SupportMapFragment
googleMap = fm.getMap();
LatLng point = new LatLng(latitude, longitude);
CameraUpdate cameraPosition = CameraUpdateFactory.newLatLng(point);
CameraUpdate cameraZoom = CameraUpdateFactory.zoomBy(5);
// Showing the user input location in the Google Map
googleMap.moveCamera(cameraPosition);
googleMap.animateCamera(cameraZoom);
MarkerOptions options = new MarkerOptions();
options.position(point);
options.title("Position");
options.snippet("Latitude:"+latitude+",Longitude:"+longitude);
// Adding the marker in the Google Map
googleMap.addMarker(options);
break;
}
}
}
}
请帮助我，任何帮助将不胜感激！
【问题讨论】：
标签： android api google-maps google-places-api google-places