Develop Reference

How to Ebay oauth process for Android?

I have managed to achieve HTTP requests with Volley to an API without auth, but with Ebay API things are becoming harder.
https://github.com/eBay/ebay-oauth-android-client
The above link has the an example, yet it is not filled with a real case scenario.
ApiSessionConfiguration.initialize
(
apiEnvironment = ApiEnvironment.PRODUCTION,
apiConfiguration = ApiConfiguration(
"<Client ID>",
"<Redirect Uri>",
"<space separated scopes>"
)
)
Client ID appears on Ebay Developer Account as is and i guess "XXXX-XXXX-PRD-XXXX-XXXX" something on that lines is correct.
Redirect Uri on the other hand seems more confusing. Which string needs to be placed there? The "RuName" that is similar to the Client ID XXXX-XXXX-XXXX-XXXX? Or something like "http://..."?
Space separated scopes hopefully are; "https://api.ebay.com/oauth/api_scope/sell.marketing.readonly" + " " + "https://api.ebay.com/oauth/api_scope/sell.marketing" ... and so on.
I have further doubts about the part that requires having a second activity to be overriden on the manifest but i guess that will be better asked separatedly.

Outlook - Read another user's calendar

I'm developing an Android App based on Outlook-SDK-Android. The App talks with Outlook Calendar REST API to retrieve, book and delete events (see code examples here and here). Now I need to read someone else's calendar and I've been provided an Office365 account with delegate access (author permission level) towards other users.
I've registered my app using the provided account on the new portal. In my App I use the scope "https://outlook.office.com/Calendars.ReadWrite".
(The scope is used in com.microsoft.aad.adal.AuthenticationContext.acquireToken() to initialize an Office REST Client for Android OutlookClient, a shared client stack provided by orc-for-android)
When I try to read another user's calendar on which I have delegate access I just receive back a 403 response:
{
"error": {
"code": "ErrorAccessDenied",
"message": "Access is denied. Check credentials and try again."
}
}
Any help?
Is it a limitation of the API? If so why is the following method invocation chain provided then?
outlookClient.getUsers()
.getById("meetingRoom#company.com")
.getCalendarView()
UPDATE:
It seems like there are works in progress that will allow this scenario, as reported here: Office 365 REST API - Access meeting rooms calendars
So if progress in that direction has been made can I achieve my goal without using an "admin service app"? (see Office 365 API or Azure AD Graph API - Get Someone Elses Calendar)
Can I use basic authentication as suggested here?

Calendar delegation is a feature of Exchange, the Graph API and Outlook API do not allow the user to access the delegated calendar.
Currently, the alternative workaround could be use the EWS. And here is an sample for your reference:
static void DelegateAccessSearchWithFilter(ExchangeService service, SearchFilter filter)
{
// Limit the result set to 10 items.
ItemView view = new ItemView(10);
view.PropertySet = new PropertySet(ItemSchema.Subject,
ItemSchema.DateTimeReceived,
EmailMessageSchema.IsRead);
// Item searches do not support deep traversal.
view.Traversal = ItemTraversal.Shallow;
// Define the sort order.
view.OrderBy.Add(ItemSchema.DateTimeReceived, SortDirection.Descending);
try
{
// Call FindItems to find matching calendar items.
// The FindItems parameters must denote the mailbox owner,
// mailbox, and Calendar folder.
// This method call results in a FindItem call to EWS.
FindItemsResults<Item> results = service.FindItems(
new FolderId(WellKnownFolderName.Calendar,
"fx#msdnofficedev.onmicrosoft.com"),
filter,
view);
foreach (Item item in results.Items)
{
Console.WriteLine("Subject: {0}", item.Subject);
Console.WriteLine("Id: {0}", item.Id.ToString());
}
}
catch (Exception ex)
{
Console.WriteLine("Exception while enumerating results: { 0}", ex.Message);
}
}
private static void GetDeligateCalendar(string mailAddress, string password)
{
ExchangeService service = new ExchangeService();
service.Credentials = new WebCredentials(mailAddress, password);
service.TraceEnabled = true;
service.TraceFlags = TraceFlags.All;
service.AutodiscoverUrl(mailAddress, RedirectionUrlValidationCallback);
SearchFilter sf = new SearchFilter.SearchFilterCollection(LogicalOperator.And, new SearchFilter.IsEqualTo(AppointmentSchema.Subject, "Discuss the Calendar REST API"));
DelegateAccessSearchWithFilter(service, sf);
}
And if you want the Outlook and Graph API to support this feature, you can try to contact the Office developer team from link below:
https://officespdev.uservoice.com/

FindMeetingTimes is currently in preview! To view the details, use this link and then change it to view the Beta version of the article (top right in the main column): https://msdn.microsoft.com/en-us/office/office365/api/calendar-rest-operations#Findmeetingtimespreview
Details below from the article, but please use the link to get the latest:
Find meeting times (preview)
Find meeting time suggestions based on organizer and attendee availability, and time or location constraints.
This operation is currently in preview and available in only the beta version.
All the supported scenarios use the FindMeetingTimes action. FindMeetingTimes accepts constraints specified as parameters in the request body, and checks the free/busy status in the primary calendars of the organizer and attendees. The response includes meeting time suggestions, each of which is defined as a MeetingTimeCandidate, with attendees having on the average a confidence level of 50% chance or higher to attend.

How to Authenticate with Alexa Voice Service from Android?

I am trying to connect to Alexa Voice Service from an Android app following the directions on this page: https://developer.amazon.com/public/solutions/alexa/alexa-voice-service/docs/authorizing-your-alexa-enabled-product-from-an-android-or-ios-mobile-app
Bundle options = new Bundle();
String scope_data = "{\"alexa:all\":{\"productID\":\"" + PRODUCT_ID +
                    "\", \"productInstanceAttributes\": {\"deviceSerialNumber\":\"" + PRODUCT_DSN + "\"}}}";
options.putString(AuthzConstants.BUNDLE_KEY.SCOPE_DATA.val, scope_data);
options.putBoolean(AuthzConstants.BUNDLE_KEY.GET_AUTH_CODE.val, true);
options.putString(AuthzConstants.BUNDLE_KEY.CODE_CHALLENGE.val, CODE_CHALLENGE);
options.putString(AuthzConstants.BUNDLE_KEY.CODE_CHALLENGE_METHOD.val, "S256");
mAuthManager.authorize(APP_SCOPES, options, new AuthorizeListener());
First, I don't know what APP_SCOPES should be. I set it to:
protected static final String[] APP_SCOPE = new String[]{"profile", "postal_code"};
but I get an error from the server
AuthError cat= INTERNAL type=ERROR_SERVER_REPSONSE - com.amazon.identity.auth.device.AuthError: Error=invalid_scope error_description=An unknown scope was requested
What am I doing wrong and how can I do this right?

The APP_SCOPE is : "alexa:all"
The PRODUCT_DSN can be anything you want, "1234" as per suggestion from Joshua Frank (https://forums.developer.amazon.com/forums/message.jspa?messageID=18973#18973)
The PRODUCT_ID is the ID in the AVS Developper Portal (https://developer.amazon.com/edw/home.html#/avs/list)
The CODE_CHALLENGE the Client Secret in the Security Profile of your application (should be already hashed in S256)

The problem is not with the APP_SCOPES variable, it is actually with the PRODUCT_ID, PRODUCT_DSN variables passed in the scope data.
I faced this exact same issue and have raised a query in amazon developers forum on what needs to be passed in those variables - Alexa authentication issue using beta SDK
Once the PRODUCT_ID, PRODUCT_DSN & CODE_CHALLENGE variables are determined then the authentication should be pretty much straight forward.

The APP_SCOPE should be "alexa:all"

Using Google Maps and Baidu Maps in same app

I'm wondering if there are anyone out that have implemented Google Maps V2 and Baidu Maps in the same version; because GM doesn't work as intended in China?
Or should I split the project into two branches instead? However it would be nice to skip having two branches to maintain.

My solution for this was to implement GM as usual, however if the user has China set (via settings) static maps is to be used, BUT the static map is fetched from Baidu instead of google.
staticUrl = "http://api.map.baidu.com/staticimage?center="
+ location.getLongitude() + "," + location.getLatitude()
+ "&width=" + width + "&height=" + width + "&zoom=15"
+ "&markers=" + location.getLongitude() + "," + location.getLatitude();
Result of https://api.map.baidu.com/staticimage?center=121,31&width=300&height=300&zoom=15:
This method is NOT recommended if trying to implement a real map solution.
Since I have different locations only used by different countries, this solution could be used.
So, that is how I solved it. Hope someone finds this helpful.

Also, I have found that if you use http://ditu.google.cn while in China, it does work.
When using on-line maps in China for your application, whether it's Google Maps or Baidu, there is a transformation of latitude and longitude for legal reasons.
The satellite view in Google Maps uses "Earth" (WGS-84) coordinates. The map view of GMaps in China uses "Mars" coordinates (GCJ-02), and there is code to convert between the two. Baidu maps use the "Bearpaw" coordinates, with a different offset. The Baidu Map API has a demo converting between Google's coordinates and its own systems.
In China, GPS, like everything, has an extra layer of complication :)
If you have built this app, please post the details. Having an English interface to Baidu maps would be great.

You can use both Google Maps and Baidu Maps side by side, but make sure to convert from the WGS-84 coordinates (used by most of the world) to Baidu's coordinates (BD-09, different from China's GCJ-02). Here's some code that does that, based on an example from the Baidu Maps API:
// Google coordinates
var gPoint = new BMap.Point(121.4914, 31.2423); // lon, lat of the Bund Museum in Shanghai - https://www.google.com/maps/#31.2423,121.4914,19z
// gPoint = new BMap.Point(-122.0851053, 37.4219593); // lon, lat of the Googleplex (no Baidu map data but zooms out in Mountain View)
var labelOffset = { offset: new BMap.Size(20, -10) };
// Initialize map
var map = new BMap.Map('allmap');
map.centerAndZoom(gPoint, 15);
map.addControl(new BMap.ScaleControl({anchor: BMAP_ANCHOR_TOP_LEFT})); // add scale
map.addControl(new BMap.NavigationControl());
map.addControl(new BMap.MapTypeControl()); // map type control: street/satellite/2.5D
map.enableScrollWheelZoom(); // mouse wheel scroll is disabled by default
// Add Google marker and label
var markerG = new BMap.Marker(gPoint);
map.addOverlay(markerG);
markerG.setLabel(new BMap.Label('Google coordinates marker appears<br/>at incorrect location on Baidu Map', labelOffset));
// Coordinate conversion ... GCJ-02 coordinates ... Baidu coordinates
BMap.Convertor.translate(gPoint, 2, function (point) {
var marker = new BMap.Marker(point);
map.addOverlay(marker);
marker.setLabel(new BMap.Label('Converted to Baidu coordinates:<br/>' +
point.lng + ', ' +
point.lat +
'<br/>(note the offset of ' + (map.getDistance(gPoint, point)).toFixed(2) + ' meters)',
labelOffset));
map.addOverlay(new BMap.Polyline([gPoint, point])); // draw a line between points
});
<style type="text/css">
body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=gd0GyxGUxSCoAbmdyQBhyhrZ"></script>
<script type="text/javascript" src="http://developer.baidu.com/map/jsdemo/demo/convertor.js"></script>
<div id="allmap"></div>
If the snippet above doesn't work due to the way StackOverflow sandboxes scripts, try the JSbin demo of Google -> Baidu coordinates conversion instead.
If you must perform the conversion offline, check out the evil transform project on GitHub.
It's unclear though what coordinate types browsers localized in Chinese will return via the navigator.geolocation API. I've made a test app for that and posted the question at
Showing navigator.geolocation.getCurrentPosition in Baidu Maps.
Further reading:
What causes the GPS shift in China?
Restrictions on geographic data in China

PROBABLY a bit late to the party, but I accidentally stumbled across something recently which might help you.
I tried baidu maps and it was shockingly difficult to setup and terrible to use so I had a look around and suddenly, google maps worked for me without a vpn!
I realised that the old google china server was still active and if you try:
maps.google.cn
you'll find that creating an iframe using the google.cn address works!

Try to use this way with Google coordinate
http://api.map.baidu.com/marker?location=39.916979519873,116.41004950566&output=html

If your server can access GM without issues (eg. your hosting is not in China mainland or it is but has uncensored connection), why don't you have server do loading data from GM and route it to user instead? We did that for few projects in the past, worked like a charm.
p.s. you could make php pull static map from GM for requested long/lat, store it into temp file on server, then pass back url to the temp file. From user's perspective they would be looking at (static) GM.
p.p.s. If you need user to be able to use GM's UI (do pan/zoom) then you'd need a bit more complex php that would alter all JS loaded from GM so all data would still be requested to your server which would then get maps - so basically to avoid any requests from client machine to be sent to GM server, but all to be sent to yours instead.

Does createRoute method support lat/Lng in Mapquest?

This is a question about Mapquest Android Maps API.
Does anyone know that the createRoute method is supporting lat/Lng or not in mapquest?
public void createRoute(java.lang.String from, java.lang.String to)
The document I found here:
I have read the "Location Format Documentation" : link
It seems that createRoute method supports lat/Lng.
I tried to input lat/Lng a whole day but it returns me an error message only:
Unable to create route.
Error: -1"
Message:[null]

Are you still seeing this error message? The MapQuest Android Maps API does support lat/lng input for routing. Here is a sample request that uses lat/lng inputs:
private void displayRoute() {
RouteManager routeManager= new
RouteManager( this );
routeManager.setMapView( map );
routeManager.createRoute( "{latLng:{lat:37.765007,lng:-122.239937}}" , "Fremont, CA" );
}
Also, The MapQuest Developer Network has an Android Maps API forum. It is also a good resource to check!

You can write like this
RouteManager routeManager = new RouteManager(this);
routeManager.setMapView(map);
routeManager.createRoute("37.002004,35.322998", "36.802687,34.632812");
or like this
RouteManager routeManager = new RouteManager(this);
routeManager.setMapView(map);
routeManager.createRoute("Any City Name", "Any City Name");
MapQuest is supporting this types