Detect iOS device's cancel event within Ionic 3 app - ios

Could you tell me how can I Identify the iOS device's Cancel button event?
The use case is this: I need to send the user into a home page when a user clicked the cancel button on Contacts page as shown below. At that time user is in the Contacts page. Here I use Contacts native plugin. I need to detect the iOS phone's cancel button event. Any clue?

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Detect the button action in the WebView in iOS swift

how do you know when user clicks the button in the webview iOS swift
when he click the camera button in the remote url provided by backend team asks the permission and upload photo
2)after submit button cliked close the webpage and navigate to native screen
Can you please solve this issue

How to detect action of system generated alert view?

I need user location for my app..If location is turned off ,the iOS shows default alert view with cancel and settings button. I want to detect cancel button is clicked. Because I need to show some warning..Any solutions??

How do I detect a long press on the app icon?

Is there a way to detect if the user has long-pressed the app icon on the home screen?
I can detect if a quick action is selected, but I'd also like to detect if the Home Screen Quick Action menu is displayed.
Is there a way to detect if the user has long-pressed the app icon on the home screen?
No. Cocoa is event driven. Without an event, your code doesn't run. You don’t get any event unless the user taps one your quick actions or Today extension.

How to handle the Return to Safari button click from ios app

I have an app that is launched from a url in safari. On the top of the app is a < safari button that returns to the calling safari tab. I would like to my app to handle the event and close resources that I'm using when the < safari button is tapped.
I've searched with no success.
There is no way to know that a user tapped the "return to previous app" link in the status bar.
All your app can detect is that it has entered the background. But of course that could happen for many other reasons.

Detect and block UIWebView redirection by iOS API

I am using an API in my iOS app that gives some info about user.
If user is not logged in, the API opens the login page otherwise returns the user info that I can display on UI.
In my app, I want to implement a text label and a button.
If user is logged-in, the app should display the button, asking to login.
Otherwise the button will be hidden and text label will show user info.
The issue is that, for both login and to get user info, the same API is provided.
For deciding to display the button, I need to prevent the API from opening the webview on it's own, and only do it when user presses the button in my app.
Is there a way to detect that the API is trying to open webview and then block it?

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