I implemented app localization for a flutter app. Everything is working fine. But there's one issue. In the load method of my AppLocalization class, I call methods that return Futures which initiate my translations.
Now while the load method is initiating my translations, the build method of my main page is called which completes the build with old localizables. If I go to another page and come back, the page get translated since the localizables would already have been initialized.
To prevent this, I need to either pause the build method of the page which I'm not sure how to. Or retrigger the build method at the end of the load function in my AppLocalization class. I cannot navigate to that page in the AppLocalization class since I don't have access to build context there.
Anyone has had a similar challenge in their projects?
Related
I use SAP standard library: Inbox.
in library class S3.controller by tap on attachments icon is onTabSelect event executed, witch makes
this.fnDelegateAttachmentsCreation();
this.fnFetchDataOnTabSelect("Attachments");
this.fnHandleAttachmentsCountText("Attachments");
this.fnHandleNoTextCreation("Attachments");
break;
fnFetchDataOnTabSelect makes an asynchronous call. During this call is fnHandleAttachmentsCountText already executed, so the update of attachments count occurs before the request for attachments is ready. As far the request for attachments is ready, there is no update for title executed.
On screenshot is AttachmentCountText „Attachnents (1/1)“, that comes from previously selected item.
It should be „Attachements (2/2)".
Also if response comes too quick, then view changes to loading view after it received the answer from request.
If list of attachments was updated from request callback, then it should not be updated second time.
Here it seems, that there is something on loading, but request is already finished.
How could be Inbox extended, to update the attachment header and content after request is ready?
used SAPUI5-Version: 1.71.4
You are using the standard bsp-application ca_fiori_inbox?
You didn't create an extension project of the application ca_fiori_inbox with custom coding?
If that's the case, it's a bug in an standard application delivered by the SAP. SAP releases so called notes to fix bugs in their standard applications.
You can import notes in your system via the transaction SNOTE. May ask a SAP Basis Administrator from your company for help.
The following notes exactly describe your problem
2873960
2823664
2916255
2901520
If you already extended the SAP standard application(MyInbox) without using ExtensionPoints codechanges in the standard application will not affect your custom extension.
When overriding a controller method, any functionality that was previously provided by it is no longer available. Likewise, any future changes made to the original controller method implementation will not be reflected in the custom controller.
In this case you could still implement the note and check the changes in the standard controller vs. your custom controller on your system and change the respective lines in your custom coding.
Don't fix SAP coding. Report it and get a fix.
The Note 2873960 corrects coding in an abap class, not in the bsp-application(ca_fiori_inbox). So definitly import the note and check if it's fixing your problem.
I actually do not know, how the app works, but I want to give it a try.
Since it is an asynchronous function, you can always also wait for the function until it is done. So in your case, you could try to set an await keyword in front of the function.
await fnFetchDataOnTabSelect("Attachments");
This will now wait on this position until it has finished the function call before it will call the next functions. In addition to that you also need to set the upper function onTabSelect to async. So in the end it should look something like this.
onTabSelect: async function() {
// ...
this.fnDelegateAttachmentsCreation();
await this.fnFetchDataOnTabSelect("Attachments");
this.fnHandleAttachmentsCountText("Attachments");
this.fnHandleNoTextCreation("Attachments");
// ...
}
Although the Web IDE maybe shows you errors, it does work, since it is an official JavaScript API.
How can i pass or preserve the state of my store between pages using PageView?
By example, I'm trying to upload an image at the first page to edit, and pass to a second page where i want to show the image with a form. Im using MVC, and the image is set via controller (store), but it's not working. I've been made some tests and sometimes, at debugging runtime, the image is shown at the second page. But, sometimes even debugging it isn't shown and its value is null.
I tried with AutomaticKeepAliveClientMixin also, but the behavior is the same.
Someone can tell me what i'm doing wrong or what i'm missing?
I think using singleton can solve your problem, actually I think I had this problem in two apps I made.
I used get_it plugin, this package creates singletons easily for you and it's simple to retrieve anywhere in the app without using context.
First, register your MobX as Singleton, I do it on main:
getIt.I.registerSingleton<YourStore>(YourStore());
Retrieve the same instance of your Store, if you have observables in the first page and call an action on the second page, it will trigger the observables in the first page or wherever you used any observable from this instance of Store.
GetIt.I<YourStore>().changeImageFromFirstPage();
You can call GetIt.I().youraction() anywhere in your app, it will trigger the observables you created on this Store.
final list = Provider.of<TodoList>(context);
in the MobX document, there is a provider that can be used as the above code.
I use GetIt too, it is really awesome.
there is a sample for this in the following URL for the MobX:
https://mobx.netlify.app/examples/todos
When testing the SplitApp demo app provided with the 1.18.5 SAPUI5 SDK there seems to be a conflict between the routing and model binding. If you navigate to a detail page and then refresh the browser window the data binding fails. This would be the same as if you bookmarked the app on a specific view.
Just wondering if anyone knows why this is? Is it a conflict with routing and data binding? My debugging is not showing anything up yet only that the model is empty when the detail view loads.
This app uses the new Component-based router where you define your routes in the component metadata.
I've also written a small test app here js1972/test · GitHub (branch "routes") which does similar and has the same issue.
the following bookmark works with the fake service
../test-routes/#/detail/Categories(2)
../test-routes/#/detail/Categories(3)
doesnt
request.onSend in ODataModelFakeService.js doesnt cater for all scenarios
an alternative maybe to use sap.ui.core.util.MockServer with a cutdown metadata.xml and json files for the Category and Product entities
I've ran into the same issue and just want to share my findings and solution:
The detail view waits until the list in the master view is loaded. If the service you are using is quite slow the list has already finsihed loading, but the model has not finished loading and thus the detail view returns an error.
To fix this I've attached an "requestCompleted"-event to the model and created a jQuery.Deferred object for the model.
The master then waits for the resolve of the model.
oModel.attachEvent("requestCompleted",
function() {
this.oModelFinishedDeferred.resolve();
this.getEventBus().publish("Model",
"ModelFinished");}
, this);
My question is very basic on one hand but on the other hand the general situation is more complex, plus I cannot really get any working sample.
I'm developing/maintaing a web-application which is currently in transition from GWT code base into Ember.js.
Most of the newer code already relies on Ember.js and I think it's really awesome.
The problem is we cannot use Ember Router as all the request are being handled by the GWT.
In order to enabled the application run in this unusual configuration we have special JavaScript files that create our Ember main objects (Controllers & Models) for us.
As you can imagine navigation between tabs is cumbersome and is handled by GWT who creates Ember objects when needed. We are in transit toward a brave new world Ember Router and all.
But in the meantime, this is the problem I'm facing right now.
The user clicks a link which opens a page that contains some Ember based table.
The data is retrieved form the server using some Ajax code. Upon success it spawns a forEach loop which tries to pushObject all the received date into our Ember based components.
My problem happens when the user quickly switches between tabs. In this case the first list of object has not finished rendering yet and suddenly there's a new set of objects to handle. This causes Ember to throw errors like:
"Uncaught Error: Cannot perform operations on a Metamorph that is not in the DOM. "
and
"Uncaught NotFoundError: An attempt was made to reference a Node in a context where it does not exist."
Is it possible to prevent the loop from trying to render?
I've tried checking if the controller in question is already inDOM and it is, is there a way to notify Ember this object is no longer valid?
Sorry for a lengthy question and lack of running sample.
I'd probably modify the switch tab code to only execute afterRender has completed, that way you aren't mucking with ember objects while they are being used.
Ember.run.scheduleOnce('afterRender', this, function(){
// call GWT switch tab routine
});
Thank you Daniel and Márcio Rodrigues Correa Júnior. eventually what I did is to add a patch that would check the current context of the application (in my case the currently selected tab). If upon receiving the AJAX response the application is in the correct context (meaning the user haven't change the tab) go on. Otherwise just ignore the response and do not try to render it.
Now it seems to be working
I have a facebook app developed in plain PHP, I'm migrating the app to YII framework.
The thing is that I use a class call "utilsFacebook" where I have the object facebook(of the fb sdk) and all the methods that I need to get data from facebook, getUserId, getUserFriendList, etc.
I don't know how to handle all the operations that I do in utilsFacebook with Yii.
Create a controller with the functions of utilsFacebook is the correct think to do?
Every time that I instance the controller would create a new Facebook object, Should I store that object in a SESSION to get a better performance or is a bad idea?
Q. Create a controller with the functions of utilsFacebook is the correct think to do?
Having done a facebook app using yii as the framework, i would recommend you to make this library either a component, or an extension.
But definitely don't put these functions in the controller directly. Whenever a controller needs them call the functions using your custom facebook util class.
Components can be put in the folder: projectrootfolder/protected/components
Extensions can be put in the folder: projectrootfolder/protected/extensions
If you don't believe that either of these make semantic sense, you can always create a new folder within protected, say utils and put the class there. However i think extensions is the best way to go.
Q. Should I store that object in a SESSION to get a better performance or is a bad idea?
I don't think it's necessary to store the object in a session, because there will be no visible performance gain. Further you'll complicate your code unnecessarily.
What i had done was, created an app level component and used this component throughout the app, in any controller.
Example:
In your application's config, protected/config/main.php :
'components'=>array(
'fbHelper'=>array( // gave the component this name
'class'=>'ext.utils.FacebookHelper', // had stored the helper class in extensions/utils folder
'parameter1'='somevalue',
// more parameters
),
// standard yii app components
),
This will allow you to use the component like this: Yii::app()->fbHelper->getFriends();
Take a look at the facebook-opengraph extension, which could help you, on the way.