Need to have an event to be fired every time a page on my app is visible again (got focus).
Example: My app opens a browser, or people opens another app.
I need an event when browser or other app is closed and my app page becomes VISIBLE (on top) again.
OnAppearing() does not works in this case.
Is there a way to fire this event ?
Regards
Related
The problem I’m asking is how to have a kind of page (call it SetupPage) that is only shown until the user presses a button on the screen. Then when the screen should show the next page(call it HomePage) and every time the app is opened after the button press, the normal page will be HomePage.
I’ve seen this general idea in many apps (sign-in and home page, enter phone number or school and main page, etc) and I would like to have it in my app! I’m thinking of using Navigator routes and having the stack be this at first:
(HomePage, SetupPage)
and then once the button is pressed I can pop SetupPage. But I’m not sure how to implement this.
I already have the SetupPage and HomePage classes made. I’m not doing a sign-in the SetupPage or anything like that. I’m not using FireBase in this app either.
You can use the Flutter package shared_preferences to save a Boolean that tell you at the start of the program is the button pressed or not.
i have used cordova--plugin-ionic-keyboard default plugin in my hybrid ios
application in ionic 3 .
when i open a payment gateway link by using iframe and i click on the textbox button for writing a card details keyboard will appear but if any case i want to go back after opening a keyboard then keyboard is not closed or hide for whole app then i have to close the app and start again.
i have searched a lot of things on internet but i can not get a appropriate answer which works for me.
i have tried out hide() method of plugin but whichever page i use this hide method that page is not open means app stop before the page on which i try hide method.
i also used in-app browser but still not work
I am creating search page and I have use activity and places in GWT. I have used Key Listener so when user press Enter it redirect user on result page.
Problem is that when user use browser back button and again press enter Key Listener call twice same if user again click back button next time it will call trice and so on. Is there any solution for this?
You're probably adding your listener when activity starts but never remove it (e.g. when activity stops).
The full solution depends how you code your activity (do you reuse activity instances? do you have a separate view with activity acting as a presenter/controller? if so, is the view a singleton, or at list lives longer than the activity and can be reused by another activity instance? etc.)
In the home page of my iphone application i am calling a web page, users can do some actions(comment,like etc) from other tabs of my app-After that,when the come back to home page the web page must be refreshed(eg:- comment/like count must be incresed)
If user do the refreshing of home page(scroll up from top) the page is getting refreshed,but the client wanted to refresh it automatically
So i have loaded the web page in viewDidAppear method,
Now problem is-whenever user come back to home page it gets refreshed and showing from the top(if user go to detail from some link at bottom and come back,webpage shows the top)
how to prevent this,or is there any better idea for automatic refreshing ?
Perhaps a better way would be to use javascript to download the updates in the background, then update your content appropriately. UIWebView has a method –stringByEvaluatingJavaScriptFromString: which can be used to run javascript code. You could supply the method call to perform the refresh in your -viewDidLoad method.
Another option could be to download the HTML in the background, and compare it too what is displayed, if different, swap. That way content is only refreshed when needed. Although that still gives you the problem of content moving to the top.
I'm developing a Voip application.
When I press the lock button(app goes to sleep), and the server sends a request I present a local notification.
The local notification is presented as it should and The button slider text says "slide to answer". If I slide here, the app gets open.
However, if now I press again the lock button, and then unlock, the notification is still presented and the slider text has changed to "slide to unlock".
Now, when I slide to unlock, it's as if I pressed the "close" button on a regular notification bar, meaning the app won't open.
My question is why on the second time the local notification is still presented ? and if so, is there a way to track the unlock button event or the unlock slider so I can tell the server that I don't want to answer the call ?
Thanks
The notification is only a dialog (i.e., the user can interact with it directly) for a short time - until the device is locked again, either by using the button or automatically after a time-out of about 15 seconds.
After that, it turns into a notification. The user cannot interact with it directly, apart from reading the message.
Sorry, but it doesn't get any better unfortunately.