I am getting no response. What am i missing?
Can anyone give me an idea on it. Having error.
IPlacesClient placesClient = PlacesApi.CreateClient(CrossCurrentActivity.Current.Activity);
PlacesApi.Initialize(CrossCurrentActivity.Current.Activity, "********API KEY***************");
var token = AutocompleteSessionToken.NewInstance();
var request = FindAutocompletePredictionsRequest.InvokeBuilder()
.SetSessionToken(token)
.SetTypeFilter(TypeFilter.Establishment)
.SetCountry("US")
.SetQuery("Ind")
.Build();
Task<FindAutocompletePredictionsResponse> task = placesClient.FindAutocompletePredictions(request);
You can refer to https://github.com/xamarin/XamarinComponents/blob/master/Android/GooglePlaces/samples/PlacesSample/MainActivity.cs
You were in the right way.
You must add an Action to your task.
task.AddOnSuccessListener(CrossCurrentActivity.Current.Activity, this);
task.AddOnFailureListener(CrossCurrentActivity.Current.Activity, this);
Then, add code to each one of this Actions
public void OnSuccess(Java.Lang.Object result)
{
//Do something
}
public void OnFailure(Java.Lang.Exception e)
{
//Failed
}
Remember to implement IOnSuccessListener, IOnFailureListener and IOnCompleteListener
Related
I'm struggling with how to invoke a top level function in dart. I'd like to be able to annotate a function with #Route, find all the Route annotations, then check that the annotation is on a method, and then call that method by its symbol.
What I have so far is:
class Route {
final String url;
const Route(this.url);
}
#Route('/')
void handle() {
print('Request received');
}
void main() {
var mirrorSystem = currentMirrorSystem();
var lm = mirrorSystem.isolate.rootLibrary;
for (var mirror in lm.declarations.values) {
var metadata = mirror.metadata;
for (var im in metadata) {
if (im.reflectee is Route) {
print('Route found');
// how to invoke the function handle associated with the route annotation?
}
}
}
}
From this point i'm not sure how I would then call the method. If it was a class then I could use invoke and pass in the Symbol for the method, but that doesn't work as it's not a class.
Can anyone give me some clues? Information about the mirrors library in dart is fairly sparse unfortunately.
I worked this out. For anyone who finds this, you use the LibraryMirror on rootLibrary to invoke the top level function:
void main() {
var mirrorSystem = currentMirrorSystem();
var lm = mirrorSystem.isolate.rootLibrary;
for (var mirror in lm.declarations.values) {
var metadata = mirror.metadata;
for (var im in metadata) {
if (im.reflectee is Route && mirror is MethodMirror) {
lm.invoke(mirror.simpleName, []);
// prints 'Request received'
}
}
}
}
To prevent the XY problem, I'll start from the beginning:
I have a non-blocking SOAP client which I wrapped it to make the return type Mono<T> (By default it accepts callback. I can elaborate on this if needed).
Now I want to do (given ID):
1. Get the code by ID
2. Do something with the code
3. After that, get Foo and Bar and create FooBar
What I wrote was:
public class MyService {
private final MySoapClient soapClient;
public Mono<FooBarDto> doSomething(String id) {
return Mono.just(id)
.flatMap(soapClient::getCode) // returns Mono<String>
.flatMap(code ->
soapClient.doSomething(code) // returns Mono<Void>
.then(getFooBar(id, code))); // See this
}
private Mono<FooBarDto> getFooBar(String id, String code) {
return Mono.zip(
soapClient.getFoo(code), // returns Mono<Foo>
soapClient.getBar(code) // returns Mono<Bar>
).map(tuple2 -> toFooBarDto(id, tuple2));
}
private FooBarDto toFooBarDto(String id, Tuple2<Foo, Bar> tuple2) {
return FooBarDto.builder()/* set properties */.build();
}
}
Now the problem is, because methods of the SOAP client are not lazy (the moment you call them they start the process), the semantic of then won't work here. Meaning I want to get Foo and Bar when doSomething is done. They all start together.
I tried to change it fix it by changing then to flatMap, but made it even worse. The getFooBar never got called. (1. Can someone please explain why?).
So what I ended up doing was to wrap SOAP calls again to make them lazy:
public class MySoapClient {
private final AutoGeneratedSoapClient client;
Mono<Foo> getFoo(GetFooRequest request) {
return Mono.just(request).flatMap(this::doGetMsisdnByIccid);
}
private Mono<Foo> doGetFoo(GetFooRequest request) {
val handler = new AsyncHandler<GetFooRequest>();
client.getFoo(request, handler);
return Mono.fromFuture(handler.future);
}
private static class AsyncHandler<T> implements javax.xml.ws.AsyncHandler<T> {
private final CompletableFuture<T> future = new CompletableFuture<>();
#Override
public void handleResponse(Response<T> res) {
try {
future.complete(res.get());
} catch (Exception e) {
future.completeExceptionally(e);
}
}
}
}
Is there any better way to do it? Specifically:
2. Using CompeletableFuture and the callback.
3. Making methods lazy in the SOAP client.
I tried to change it fix it by changing then to flatMap, but made it
even worse. The getFooBar never got called. (1. Can someone please
explain why?)
I think a Mono<Void> always completes empty (or error), so subsequent flatMap is never called.
Using CompeletableFuture and the callback.
Making methods lazy in the SOAP client.
To make the call lazy you can do one of the followings:
1, You can use Mono.fromFuture which accepts a supplier:
private Mono<Foo> doGetFoo(GetFooRequest request) {
return Mono.fromFuture(() -> {
val handler = new AsyncHandler<GetFooRequest>();
client.getFoo(request, handler);
return handler.future;
});
}
2, You can use Mono.defer:
private Mono<Foo> doGetFoo(GetFooRequest request) {
return Mono.defer(() -> {
val handler = new AsyncHandler<GetFooRequest>();
client.getFoo(request, handler);
return Mono.fromFuture(handler.future);
});
}
3, You can get rid of CompletableFuture and use Mono.create instead, something like this:
private Mono<Foo> doGetFoo(GetFooRequest request) {
return Mono.create(sink -> {
AsyncHandler<Foo> handler = response ->
{
try
{
sink.success(response.get());
} catch (Exception e)
{
sink.error(e);
}
};
client.getFoo(request, handler);
});
}
If you do any of these it will be safe to use then method and it will work as expected.
I am developing Umbraco 7 MVC application and my requirement is to add Item inside Umbraco. Item name should be unique. For that used the below code but I am getting the error "Oops: this document is published but is not in the cache (internal error)"
protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication,
ApplicationContext applicationContext)
{
ContentService.Publishing += ContentService_Publishing;
}
private void ContentService_Publishing(IPublishingStrategy sender, PublishEventArgs<IContent> e)
{
try
{
if(newsItemExists)
{
e.Cancel = true;
}
}
catch (Exception ex)
{
e.Cancel = true;
Logger.Error(ex.ToString());
}
}
Then I tried adding code to unpublish but its not working i.e the node is getting published. Below is my code
private void ContentService_Publishing(IPublishingStrategy sender, PublishEventArgs<IContent> e)
{
try
{
int itemId=1234; //CurrentPublishedNodeId
if(newsItemExists)
{
IContent content = ContentService.GetById(itemId);
ContentService.UnPublish(content);
library.UpdateDocumentCache(item.Id);
}
}
catch (Exception ex)
{
e.Cancel = true;
Logger.Error(ex.ToString());
}
}
But with the above code, if you give the CurrentPublishedNodeId=2345 //someOthernodeId its unpublished correctly.
Can you please help me on this issue.
You don't have to do this, Umbraco will automatically append (1) to the name if the item already exists (so it IS unique).
If you don't want this behavior you can check in the following way:
protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
{
ContentService.Publishing += ContentService_Publishing;
}
private void ContentService_Publishing(Umbraco.Core.Publishing.IPublishingStrategy sender, PublishEventArgs<IContent> e)
{
var contentService = UmbracoContext.Current.Application.Services.ContentService;
// It's posible to batch publish items, so go through all items
// even though there might only be one in the list of PublishedEntities
foreach (var item in e.PublishedEntities)
{
var currentPage = contentService.GetById(item.Id);
// Go to the current page's parent and loop through all of it's children
// That way you can determine if any page that is on the same level as the
// page you're trying to publish has the same name
foreach (var contentItem in currentPage.Parent().Children())
{
if (string.Equals(contentItem.Name.Trim(), currentPage.Name.Trim(), StringComparison.InvariantCultureIgnoreCase))
e.Cancel = true;
}
}
}
I think your problem might be that you're not looping through all PublishedEntities but using some other way to determine the current page Id.
Note: Please please please do not use the library.UpdateDocumentCache this, there's absolutely no need, ContentService.UnPublish will take care of the cache state.
The card.io component (http://components.xamarin.com/view/cardioios) has a fallback screen that has a Cancel and a Done button on them.
Neither of which actually do anything. I assume it is up to me to subscribe to and event, however, there is no event to subscribe to.
Here is the code:
var paymentDelegate = new PaymentViewControllerDelegate();
var paymentViewController = new Card.IO.PaymentViewController(paymentDelegate);
paymentDelegate.OnScanCompleted += (viewController, cardInfo) =>
{
viewController.DismissViewController(true, null);
if (cardInfo == null)
{
}
else
{
new UIAlertView("Card Scanned!", cardInfo.CardNumber, null, "OK", null).Show();
}
};
paymentViewController.AppToken = "app-token";
// Display the card.io interface
base.PresentViewController(paymentViewController, true, () => { });
There is a method on the PaymentViewControllerDelegate, but I can't figure out what to do with it:
public override void UserDidCancel(PaymentViewController paymentViewController);
public override void UserDidProvideCreditCardInfo(CreditCardInfo cardInfo, PaymentViewController paymentViewController);
I guess the problem is that the Component doesn't expose any events for the Fallback View.
You need to subclass PaymentViewControllerDelegate:
public class MyPaymentDelegate : PaymentViewControllerDelegate
{
public MyPaymentDelegate ()
{
}
public override void UserDidCancel (PaymentViewController paymentViewController)
{
// Implement on-cancel logic here...
base.UserDidCancel (paymentViewController);
}
public override void UserDidProvideCreditCardInfo (CreditCardInfo cardInfo, PaymentViewController paymentViewController)
{
// Implement logic for credit card info provided here...
base.UserDidProvideCreditCardInfo (cardInfo, paymentViewController);
}
}
And then provide an instance of this class into the constructor for Card.IO.PaymentViewController:
var paymentDelegate = new MyPaymentDelegate();
var paymentViewController = new Card.IO.PaymentViewController(paymentDelegate);
So, I figured this out by looking at the working sample application and comparing it to what I had done.
All I had to do was widen the scope of the paymentDelegate and paymentViewController variables.
If you look at the sample, you really just need to subscribe to the OnScanCompleted event which is called in both cases of UserDidCancel (where cardInfo will be null), and UserDidProvideCreditCardInfo (where it will not be null).
In fact, this is the code for the binding, so you can see the Event was made as a 'helper' to make it so you didn't have to make your own delegate implementation:
namespace Card.IO
{
public partial class PaymentViewControllerDelegate : BasePaymentViewControllerDelegate
{
public delegate void ScanCompleted(PaymentViewController viewController, CreditCardInfo cardInfo);
public event ScanCompleted OnScanCompleted;
public override void UserDidCancel (PaymentViewController paymentViewController)
{
var evt = OnScanCompleted;
if (evt != null)
evt(paymentViewController, null);
}
public override void UserDidProvideCreditCardInfo (CreditCardInfo cardInfo, PaymentViewController paymentViewController)
{
var evt = OnScanCompleted;
if (evt != null)
evt(paymentViewController, cardInfo);
}
}
}
If you still really want to implement the delegate yourself, subclass BasePaymentViewController instead, however I don't think you really need to make your own subclass of it...
Hopefully that helps!
How do I create a link that will automatically make a user follow a certain Twitter user if they're logged in or send them to Twitter to login first if they're not? I had found how to do this about month or 2 ago but can't find it again. I think it was something basic like a link or a form post to something like twitter.com/[user]/follow.
I've looked at the API, but I'd need the user to authenticate themselves on my site, and I don't want to deal with that. I just want them to authenticate directly on Twitter and not worry about it. The way I had found was nice and simple and I just want to find that again.
Use Twitter's web intents.
While you can use the follow button, you can also send users directly to the Intent URL, like so:
https://twitter.com/intent/user?screen_name=NASA
how to use twitter api in my android application to implement follow button only
Android
http://code.google.com/p/android-hackathon-in-fukuoka/source/browse/trunk/sodefuri/src/jp/jagfukuoka/sodefuri/TimeLineActivity.java?spec=svn167&r=167
Code Snip: (I have converted chines string into standard English)
public class TimeLineActivity extends ListActivity {
private TwitterPreferenceManager tpm = new TwitterPreferenceManager(this);
private static final int FOLLOW = 1;
private static final CharSequence FOLLOW_LABEL = "Follow";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// timeline Obtaining process
String screenName = getIntent().getStringExtra("screen_name");
List<String> list = this.getTimeLine(screenName);
setListAdapter(new ArrayAdapter<String>(this, R.layout.timeline_item,list));
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, FOLLOW, 0, FOLLOW_LABEL);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case FOLLOW:
ConfigurationBuilder builder = new ConfigurationBuilder();
Configuration conf = builder.setOAuthAccessToken(tpm.getAccessToken())
.setOAuthAccessTokenSecret(tpm.getAccessTokenSercret())
.setOAuthConsumerKey(TwitterPreferenceManager.CONSUMER_KEY)
.setOAuthConsumerSecret(TwitterPreferenceManager.CONSUMER_SERCRET)
.setDebugEnabled(true)
.build();
Twitter twitter = new TwitterFactory(conf).getInstance();
try {
String screen_name = getIntent().getStringExtra("screen_name");
twitter.createFriendship(screen_name);
Toast.makeText(getApplicationContext(), "Was to follow.", Toast.LENGTH_LONG).show();
} catch (TwitterException e) {
Toast.makeText(getApplicationContext(), e.getMessage(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}
/**
* Get the time line for the specified user
*
* #param screenName
* #return
*/
private List<String> getTimeLine(String screenName) {
List<String> result = new ArrayList<String>();
Twitter twitter = new TwitterFactory().getInstance();
ResponseList<Status> userTimeline;
try {
userTimeline = twitter.getUserTimeline(screenName);
for (Status status : userTimeline) {
result.add(status.getText());
}
} catch (TwitterException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
}
iPhone
http://www.chrismaddern.com/twitter-follow-button-for-ios-iphone-code/
Here is the way, How todo
The FollowMeButton can be created in Interface Builder by adding a UIButton and changing it's class to FollowMeButton or in code using the custom initialiser:
[self.view addSubview:[[FollowMeButton alloc] initWithTwitterAccount:#"chrismaddern" atOrigin:CGPointMake(205, 248) isSmallButton:YES]];
Two size modes are available controlled by setting isSmallButton in the initialiser or by later change the isSmall property of the object.