How to add app icon when user swipes up? (Swift, Xcode) - ios

How do I add an image to the app icon that displays when the user swipes up? This is not the same as the regular app icon (I know how to change those). The icon is blank. Below is a link to an image of what I am talking about:
Link to problem

Related

What is the name of the fuctionality that makes some options appear after long pressing an app logo on ios home page?

I have tried to find the official name of this functionality however could not.
Thanks
Home Screen Quick Actions
Home screen quick actions are a convenient way to perform useful, app-specific actions right from the Home screen. People can get a menu of available quick actions when they touch and hold an app icon (on a 3D Touch device, people can press briefly on the icon to see the menu).
https://developer.apple.com/design/human-interface-guidelines/ios/system-capabilities/home-screen-actions/

Adding a button to user home screen

I would like to ask if there is a possibility to add button into user homescreen. Let's assume I have an app, when user do something with app I want to add a button into user homescreen. I'm thinking about something similar to "Add to Home Screen" from Safari app.
You can add web link icon on home screen, and no way you can add some buttons with custom actions on home screen. Every "button" is application or link icon and nothing more

changing Home Screen Quick Actions icon position

Q: how to position icon to the left side of the text in UIApplicationShortcutItems ?
Observation: i was adding Home Screen Quick Action to my app and my custom icon is on the right side of the Text.
I looked into multiple big apps like facebook, snapchat etc and observe systematically left side icon.
Apple documentation and Official App always have right aligned icons.
I don't think you can choose the position of the icon:
Here's the answer from an Apple Staff member:
The icon position is not configurable, and iOS will swap sides of the
icon depending on where the app icon is placed. For example, if the
app icon on the left side of the screen the icon in the shortcut menu
will appear on the left, but if the app is on the right side of the
screen then the shortcut menu items will be on the right. In general,
the shortcut menu icons will be positioned so that they are directly
above or below the app's icon.
From: https://forums.developer.apple.com/thread/20568

iOS App Facebook Login Screen with Logo

I have written an app that uses Facebook login via the FBSDKLoginButton. The login window shows up and the user can login using their Facebook email and passowrd... that all works great!
I am trying to figure out how to make the login window show our company logo but I cannot find this anywhere in the documentation.
Can someone point me in the right direction? I have seen many other iOS Apps that use FB Login and have their logo displayed so I know it can be done.
Here is a screenshot:
You should change the app icon of your Facebook app in order to do that.
Navigate to developers.facebook.com.
Click on My Apps on the top right corner.
Select your app.
Select Settings/Basic from the menu on the left.
Hover over the section called App Icon (which is on the bottom left of the first editable section) and click on the Edit button.

delay after clicking blackberry application icon

i can't seem to figure out the following situation:
when i i click on my blackberry app icon (within the simulator), the application pops up quick, no problems. however, when i take that same code and push it to my blackberry, there is a few seconds of wait time after the icon has been clicked.
can someone tell me how to minimize the delay? the first screen is NOTHING but an image inside a image field. i wanted to create a "splash" screen and i just show you a simple image.
after i click on the app icon (on my phone), i notice that there is activity because you see the arrows in the upper right-hand corner moving. but to the regular non-techie user, they won't know that the application has been started and they will just keep clicking the icon over and over again.
again, i click on the app icon and there is about a 3 second delay just to the image contained within the project folder. so we are not fetching the image from a remote site.
the simulator shows the image fast, but the phone creates a delay. any ideas how to minimize the delay after app icon click?
thank you.
ac
I figured it out. i just moved the instantiating and loading of several objects to a different class and later called those lines of code with an invokeLater method. my first screen only contains the image itself and the other class contains the rest of the code.

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