I am working on google maps and search.
The only option to search on the map is the Google Places API.
https://developers.google.com/places/android-sdk/intro
Which also states that you play service version of SDK is deprecated.
So I was trying to implement it with the new SDK.
Now what I want is instead of Autocomplete to Open a new Activity I want it to be displayed as a list on my autocomplete.
So I tried to implement this : https://github.com/googlesamples/android-play-places/blob/master/PlaceCompleteAdapter/Application/src/main/java/com/example/google/playservices/placecomplete/PlaceAutocompleteAdapter.java
But the issue is it works with Play service version but not with Compat version because the classes and imports are different.
This is the part of the code that I am having trouble with :
// Submit the query to the autocomplete API and retrieve a PendingResult that will
// contain the results when the query completes.
PendingResult<AutocompletePredictionBuffer> results =
Places.GeoDataApi
.getAutocompletePredictions(mGoogleApiClient, constraint.toString(),
mBounds, mPlaceFilter);
// This method should have been called off the main UI thread. Block and wait for at most 60s
// for a result from the API.
AutocompletePredictionBuffer autocompletePredictions = results
.await(60, TimeUnit.SECONDS);
// Confirm that the query completed successfully, otherwise return null
final Status status = autocompletePredictions.getStatus();
if (!status.isSuccess()) {
Toast.makeText(getContext(), "Error contacting API: " + status.toString(),
Toast.LENGTH_SHORT).show();
Log.e(TAG, "Error getting autocomplete prediction API call: " + status.toString());
autocompletePredictions.release();
return null;
}
If anyone has implemented PlacesAutoCompleteAdapter with New Places API library. Please guide me with changing the above code.
Thank you.
Reference link:
https://developers.google.com/places/android-sdk/autocomplete#get_place_predictions_programmatically
Step 1. Intialize new PlaceClient
// Initialize Places.
Places.initialize(getApplicationContext(), apiKey);
// Create a new Places client instance.
PlacesClient placesClient = Places.createClient(this);
Step 2. Create request
// contain the results when the query completes.
FindAutocompletePredictionsRequest request = FindAutocompletePredictionsRequest.builder()
// similar to previous mBounds
// but you have to use Rectangular bounds (Check reference link)
.setLocationRestriction(mBounds)
.setQuery(constraint.toString()) // similar to previous constraint
.setTypeFilter(TypeFilter.ADDRESS) // similar to mPlaceFilter
.build();
Step 3. Send request object to response method
Task<FindAutocompletePredictionsResponse> task =
placeClient.findAutocompletePredictions(request);
Step 4. Handle OnSuccess code here
task.addOnSuccessListener(
(response) -> {
for (AutocompletePrediction prediction : response.getAutocompletePredictions()) {
Timber.d("prediction result: " + prediction);
// add result to your arraylist
}
// return your arraylist outside foreach loop
});
Step 5. Handle OnFailure code here
task.addOnFailureListener((exception) -> {
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
// places not found exception code
Timber.i("error message %s", apiException.getMessage());
}
});
Step 6. Handle OnComplete code here
task.addOnCompleteListener((response) -> {
Exception e = task.getException();
if (e instanceof ApiException) {
ApiException apiException = (ApiException) e;
if (!task.isSuccessful()) {
// your code
}
}
});
}
Related
I am trying to basically copy the code from the Places API docs, found here, however, while the code seems to work, the task never returns successful or complete and not executing that code block. This is my code, but it is mostly the same as the Google docs with some changes.
public void refreshLocation(TextView textView, PlacesClient placesClient) {
// Use fields to define the data types to return.
textView.setText("Loading...");
List<Place.Field> placeFields = Collections.singletonList(Place.Field.NAME);
// Use the builder to create a FindCurrentPlaceRequest.
FindCurrentPlaceRequest request = FindCurrentPlaceRequest.newInstance(placeFields);
textView.setText("Starting task . . .");
Task<FindCurrentPlaceResponse> placeResponse = placesClient.findCurrentPlace(request);
textView.setText("Task set . . .");
placeResponse.addOnCompleteListener(task -> {
if (task.isSuccessful()) {
Double likelihood = 0.0;
String name = "";
FindCurrentPlaceResponse response = task.getResult();
for (PlaceLikelihood placeLikelihood : response.getPlaceLikelihoods()) {
textView.setText("Task successful");
if (placeLikelihood.getLikelihood() > likelihood) {
likelihood = placeLikelihood.getLikelihood();
name = placeLikelihood.getPlace().getName();
}
}
if (likelihood != 0.0) {
likelihood = likelihood * 100;
textView.setText(String.format("You are at {}. \n {}% accurate", name, likelihood));
} else {
textView.setText("Error: No Location Found.");
}
} else {
Exception exception = task.getException();
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
Log.e(TAG, "Place not found: " + apiException.getStatusCode());
}
}
});
}
Am I missing something in regards to starting the task? Is there some way to kick it off or execute it? Is this something that would be solved with AsyncTask, even though the Google Docs don't use it?
I'm trying figure out how to cancel the task which was created to fetch autocomplete predictions using the new Places SDK for Android.
The task was created using this code -
Places.initialize(applicationContext, ApiClient.GOOGLE_API_KEY)
placesClient = Places.createClient(this)
placesClient.findAutocompletePredictions(request).addOnSuccessListener { response ->
for (prediction in response.autocompletePredictions) {
Log.i(TAG, prediction.placeId)
Log.i(TAG, prediction.getPrimaryText(null).toString())
}
}.addOnFailureListener { exception ->
if (exception is ApiException) {
val apiException = exception as ApiException
Log.e(TAG, "Place not found: " + apiException.statusCode)
}
}
The task has a addOnCancelledListener but no way to cancel it!
How do I cancel this task?
Here is the complete code to cancel an autocomplete search request following the links shared by #Riyasa
/*
Create a new CancellationTokenSource object each time you execute a new query
because the cancellation token received from this will work only for this request
and not afterwards
*/
val cancellationTokenSource = CancellationTokenSource()
val requestBuilder = FindAutocompletePredictionsRequest.builder()
.setQuery(newText) //NewText is your query text
.setCancellationToken(cancellationTokenSource.token)
//Setting the cancellation token from the object created above
placesClient.findAutocompletePredictions(requestBuilder.build()).addOnSuccessListener { response ->
//Do what you need to with the result
}
//and finally call this to cancel the request using the object created for this request
cancellationTokenSource.cancel()
You can use getCancellationToken () method to cancel any yet-to-be-executed requests.
You can follow official places sdk document from the following link.
https://developers.google.com/places/android-sdk/reference/com/google/android/libraries/places/api/net/FindAutocompletePredictionsRequest#getCancellationToken()
An example on how to use the cancellation token:
https://developers.google.com/android/reference/com/google/android/gms/tasks/CancellationToken
I'm going through the process of migrating from depricated Places SDK to the Places API as described here, using the compatibility library. Everything had been working fine prior to attempting the migration. I've
1) Updated my dependencies
2) Changes my import statements
3) Min SDK was already 21
I am getting two (seemingly related) errors. cannot find symbol variable GEO_DATA_API and cannot find symbol variable GeoDataApi
the code
googleApiClient = new GoogleApiClient.Builder(PlacesActivity.this)
.addApi(Places.GEO_DATA_API) //***HERE***
.enableAutoManage(this, GOOGLE_API_CLIENT_ID, this)
.addConnectionCallbacks(this)
.build();
and
private ArrayList<PlaceAutocomplete> getPredictions(CharSequence constraint) {
if (googleApiClient !=null) {
PendingResult<AutocompletePredictionBuffer> results = Places.GeoDataApi.getAutocompletePredictions( // ***AND HERE***
googleApiClient,
constraint.toString(),
latLngBounds,
autocompleteFilter
);
// Wait for predictions, set the timeout.
AutocompletePredictionBuffer autocompletePredictions = results.await(60, TimeUnit.SECONDS);
final Status status = autocompletePredictions.getStatus();
if (!status.isSuccess()) {
//auto complete fail
autocompletePredictions.release();
return null;
}
//auto complete success
Iterator<AutocompletePrediction> iterator = autocompletePredictions.iterator();
ArrayList<PlaceAutocomplete> resultList = new ArrayList<>(autocompletePredictions.getCount());
while (iterator.hasNext()) {
AutocompletePrediction prediction = iterator.next();
resultList.add(new PlaceAutocomplete(prediction.getPlaceId(), prediction.getFullText(null)));
}
// Buffer release
autocompletePredictions.release();
return resultList;
}
return null;
}
An entire re write of code is required. Here is working code for getting lat, lng, and name (for example)
public class MainActivity extends AppCompatActivity {
String TAG = "placeautocomplete";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialize Places.
Places.initialize(getApplicationContext(), "YOUR_API_KEY");
// Create a new Places client instance.
PlacesClient placesClient = Places.createClient(this);
// Initialize the AutocompleteSupportFragment.
AutocompleteSupportFragment autocompleteFragment = (AutocompleteSupportFragment)
getSupportFragmentManager().findFragmentById(R.id.autocomplete_fragment);
// Specify the types of place data to return.
autocompleteFragment.setPlaceFields(Arrays.asList(
Place.Field.NAME,
Place.Field.LAT_LNG
));
// Set up a PlaceSelectionListener to handle the response.
autocompleteFragment.setOnPlaceSelectedListener(new PlaceSelectionListener() {
#Override
public void onPlaceSelected(Place place) {
// TODO: Get info about the selected place.
String name = place.getName();
double lat, lng;
if (place.getLatLng() !=null){
lat =place.getLatLng().latitude;
lng =place.getLatLng().longitude;
}
//do something
}
#Override
public void onError(Status status) {
// TODO: Handle the error.
Log.i(TAG, "An error occurred: " + status);
}
});
}
}
example xml
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<android.support.v7.widget.CardView
android:id="#+id/idCardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
app:cardCornerRadius="4dp"
>
<fragment
android:id="#+id/autocomplete_fragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:name="com.google.android.libraries.places.widget.AutocompleteSupportFragment"
/>
</android.support.v7.widget.CardView>
</LinearLayout>
Problem 1: cannot find symbol variable GEO_DATA_API
Solution 1:
First of all lets understand the usage of Places.GEO_DATA_API
It says that "The Geo Data API provides access to getting information about places by place ID, autocompleting a user's search query by name or address, and adding new places to Google's Places database."
source (https://developers.google.com/android/reference/com/google/android/gms/location/places/GeoDataApi)
So if we want to get place information from place id then we have to
use below code:
// Define a Place ID.
String placeId = "INSERT_PLACE_ID_HERE";
// Specify the fields to return (in this example all fields are returned).
List<Place.Field> placeFields = Arrays.asList(Place.Field.ID, Place.Field.NAME);
// Construct a request object, passing the place ID and fields array.
FetchPlaceRequest request = FetchPlaceRequest.builder(placeId, placeFields).build();
placesClient.fetchPlace(request).addOnSuccessListener((response) -> {
Place place = response.getPlace();
Log.i(TAG, "Place found: " + place.getName());
}).addOnFailureListener((exception) -> {
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
int statusCode = apiException.getStatusCode();
// Handle error with given status code.
Log.e(TAG, "Place not found: " + exception.getMessage());
}
});
Problem 2: cannot find symbol variable GeoDataApi
Solution 2: As new places api indicates that "Use findAutocompletePredictions() to return place predictions in response to user search queries. findAutocompletePredictions() functions similarly to getAutocompletePredictions()."
source (https://developers.google.com/places/android-sdk/client-migration)
So to get auto complete predictions we can use below code:
// Create a new token for the autocomplete session. Pass this to FindAutocompletePredictionsRequest,
// and once again when the user makes a selection (for example when calling fetchPlace()).
AutocompleteSessionToken token = AutocompleteSessionToken.newInstance();
// Create a RectangularBounds object.
RectangularBounds bounds = RectangularBounds.newInstance(
new LatLng(-33.880490, 151.184363),
new LatLng(-33.858754, 151.229596));
// Use the builder to create a FindAutocompletePredictionsRequest.
FindAutocompletePredictionsRequest request = FindAutocompletePredictionsRequest.builder()
// Call either setLocationBias() OR setLocationRestriction().
.setLocationBias(bounds)
//.setLocationRestriction(bounds)
.setCountry("au")
.setTypeFilter(TypeFilter.ADDRESS)
.setSessionToken(token)
.setQuery(query)
.build();
placesClient.findAutocompletePredictions(request).addOnSuccessListener((response) -> {
for (AutocompletePrediction prediction : response.getAutocompletePredictions()) {
Log.i(TAG, prediction.getPlaceId());
Log.i(TAG, prediction.getPrimaryText(null).toString());
}
}).addOnFailureListener((exception) -> {
if (exception instanceof ApiException) {
ApiException apiException = (ApiException) exception;
Log.e(TAG, "Place not found: " + apiException.getStatusCode());
}
});
Replace GoogleApiClient with GeoDataClient
mGoogleApiClient = Places.getGeoDataClient(this, null);
Replace AutocompletePredictionBuffer with AutocompletePredictionBufferResponse
private ArrayList getAutocomplete(CharSequence constraint) {
if (mGoogleApiClient != null) {
// Submit the query to the autocomplete API and retrieve a PendingResult that will
// contain the results when the query completes.
Task<AutocompletePredictionBufferResponse> results = mGoogleApiClient.getAutocompletePredictions(constraint.toString(), null, mPlaceFilter);
// This method should have been called off the main UI thread. Block and wait for at most 60s
// for a result from the API.
try {
Tasks.await(results, 60, TimeUnit.SECONDS);
} catch (ExecutionException | InterruptedException | TimeoutException e) {
Utils.handleException(e);
}
AutocompletePredictionBufferResponse autocompletePredictions = results.getResult();
// Freeze the results immutable representation that can be stored safely.
return DataBufferUtils.freezeAndClose(autocompletePredictions);
}
return null;
}
I am working with authenticating via Google+ according to the following:
https://developers.google.com/+/mobile/android/sign-in
Most of this process seems fine. The problem I'm having is that we need to get a "one-time authorization code" so that our backend servers can perform certain requests on behalf of the user, with their permission. This is covered in the section "Enable server-side api access for your app". However, for a number of reasons, our servers can cause the login to fail, even if the authorization code is valid (e.g. the user doesn't have an account corresponding to the google+ account on our servers yet, in which case they can make one).
If this happens, we might need them to login again at a later time. What I'm finding, though, is that when I perform the second login with google+, it gives me the same authorization code, even if it's already been used by our servers. I've tried disconnecting and reconnecting to the google client api, and calling GoogleApiClient.clearDefaultAccountAndReconnect(), but no matter what I do, I seem to end up with the same authorization code. This, of course, is rejected by the server when it tries to use it, since it's already been used.
I'm wondering what I'm doing wrong here. I have the following method, which is called during the initial authentication process, and then again if a response status of 500 is detected from our server (indicating the previous call failed, presumably because the code has already been used):
private void dispatchGooglePlusAuthCodeAcquisition() {
AsyncTask<Void, Void, String> authAcquisition = new AsyncTask<Void, Void, String>() {
#Override
protected String doInBackground(Void... params) {
Bundle authPreferences = new Bundle();
mUserPermissionNeededForAuthCode = false;
authPreferences.putString(GoogleAuthUtil.KEY_REQUEST_VISIBLE_ACTIVITIES,
"");
String scopesString = Scopes.PROFILE;
WhenIWorkApplication app = (WhenIWorkApplication)WhenIWorkApplication.getInstance();
String serverClientID = app.getGoogleOAuthClientIDForPersonalServer();
String scope = "oauth2:server:client_id:" + serverClientID + ":api_scope:" + scopesString;
String code = null;
authPreferences.putBoolean(GoogleAuthUtil.KEY_SUPPRESS_PROGRESS_SCREEN, true);
try {
code = GoogleAuthUtil.getToken(
mActivity,
Plus.AccountApi.getAccountName(mGoogleApiClient),
scope,
authPreferences
);
} catch (IOException transientEx) {
// network or server error, the call is expected to succeed if you try again later.
// Don't attempt to call again immediately - the request is likely to
// fail, you'll hit quotas or back-off.
Log.d(LOGTAG, "Encountered an IOException while trying to login to Google+."
+ " We'll need to try again at a later time.");
} catch (UserRecoverableAuthException e) {
mUserPermissionNeededForAuthCode = true;
// Requesting an authorization code will always throw
// UserRecoverableAuthException on the first call to GoogleAuthUtil.getToken
// because the user must consent to offline access to their data. After
// consent is granted control is returned to your activity in onActivityResult
// and the second call to GoogleAuthUtil.getToken will succeed.
if (!mGooglePlusPermissionActivityStarted) {
mGooglePlusPermissionActivityStarted = true;
mActivity.startActivityForResult(e.getIntent(), RESULT_CODE_AUTH_CODE);
}
} catch (GoogleAuthException authEx) {
// Failure. The call is not expected to ever succeed so it should not be
// retried.
Log.e(LOGTAG, "Unable to authenticate to Google+. Call will likely never"
+ " succeed, so bailing.", authEx);
}
return code;
}
#Override
protected void onPostExecute(String aResult) {
if (aResult != null) {
// We retrieved an authorization code successfully.
if (mAPIAccessListener != null) {
mAPIAccessListener.onAuthorizationCodeGranted(aResult);
}
} else if (!mUserPermissionNeededForAuthCode) {
// If this is the case, then we didn't get authorization from the user, or something
// else happened.
if (mAPIAccessListener != null) {
mAPIAccessListener.onAuthorizationFailed();
}
Log.d(LOGTAG, "Unable to login because authorization code retrieved was null");
}
}
};
authAcquisition.execute();
So, the answer to this was a lot simpler than I imagined. Apparently, there is aclearToken() method on the GoogleAuthUtil class:
http://developer.android.com/reference/com/google/android/gms/auth/GoogleAuthUtil.html#clearToken%28android.content.Context,%20java.lang.String%29
public static void clearToken (Context context, String token)
Clear the specified token in local cache with respect to the Context. Note that the context must be the same as that used to initialize the token in a previous call to getToken(Context, String, String) or getToken(Context, String, String, Bundle).
Parameters
context Context of the token.
token The token to clear.
Throws
GooglePlayServicesAvailabilityException
GoogleAuthException
IOException
Calling this method before attempting to re-authenticate causes Google to generate a new one-time authorization token.
I'm trying to indicate the authentication / sync status of an account using the AccountAuthenticator and SyncAdapter. I've been through the samples, and can get it working alright.
How can I set the indicator to red just like the GMail account?
I'd also like to add additional status indicators on the sync adapter page. See picture below:
Answering my own question for future team knowledge...
Getting the indicator to change color was fairly easy after some experimentation. Start by creating a project based on thecode supplied in the SDK sample projects, modify as follows:
1) Fake the initial login from the server during the AuthenticationActivity. Once past the initial check, the system will start it's periodic sync attempts.
/**
* Called when the authentication process completes (see attemptLogin()).
*/
public void onAuthenticationResult(boolean result) {
Log.i(TAG, "onAuthenticationResult(" + result + ")");
// Hide the progress dialog
hideProgress();
// Override the result, we don't care right now....
result = true;
if (result) {
if (!mConfirmCredentials) {
finishLogin();
} else {
finishConfirmCredentials(true);
}
} else {
Log.e(TAG, "onAuthenticationResult: failed to authenticate");
if (mRequestNewAccount) {
// "Please enter a valid username/password.
mMessage.setText(getText(R.string.login_activity_loginfail_text_both));
} else {
// "Please enter a valid password." (Used when the
// account is already in the database but the password
// doesn't work.)
mMessage.setText(getText(R.string.login_activity_loginfail_text_pwonly));
}
}
}
2) Modify the "onPerformSync()" method within the SyncAdapter. The key here are the "syncResult.stats" fields. While modifying them, I found that inserting multiple errors didn't get the effect I wanted. Also noting that the counts didn't seem to be recorded across sync attempts (i.e. the fails always come in as zero). The "lifetimeSyncs" is a static variable that keeps count across sync attempts. This modified code will continue to alternate between green and red...
#Override
public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider, SyncResult syncResult) {
List<User> users;
List<Status> statuses;
String authtoken = null;
try {
// use the account manager to request the credentials
authtoken = mAccountManager.blockingGetAuthToken(account, Constants.AUTHTOKEN_TYPE, true );
// fetch updates from the sample service over the cloud
//users = NetworkUtilities.fetchFriendUpdates(account, authtoken, mLastUpdated);
// update the last synced date.
mLastUpdated = new Date();
// update platform contacts.
Log.d(TAG, "Calling contactManager's sync contacts");
//ContactManager.syncContacts(mContext, account.name, users);
// fetch and update status messages for all the synced users.
//statuses = NetworkUtilities.fetchFriendStatuses(account, authtoken);
//ContactManager.insertStatuses(mContext, account.name, statuses);
if (SyncAdapter.lifetimeSyncs-- <= 0 ){
//mAccountManager.invalidateAuthToken(Constants.ACCOUNT_TYPE, authtoken);
syncResult.stats.numAuthExceptions++;
//syncResult.delayUntil = 60;
lifetimeSyncs = 5;
}
} catch (final AuthenticatorException e) {
syncResult.stats.numParseExceptions++;
Log.e(TAG, "AuthenticatorException", e);
} catch (final OperationCanceledException e) {
Log.e(TAG, "OperationCanceledExcetpion", e);
} catch (final IOException e) {
Log.e(TAG, "IOException", e);
Log.d(TAG, extras.toString());
syncResult.stats.numAuthExceptions++;
syncResult.delayUntil = 60;
//extras.putString(AccountManager.KEY_AUTH_FAILED_MESSAGE, "You're not registered");
} catch (final ParseException e) {
syncResult.stats.numParseExceptions++;
Log.e(TAG, "ParseException", e);
}
}
That's it, enjoy playing with the delays and other variables too...