I have used code from link below to enable external display for my iPad App.
https://developer.apple.com/documentation/uikit/windows_and_screens/displaying_content_on_a_connected_screen
The code works, (i.e. we can see the viewcontroller rendered on external display). However there is a black padding from all sides which I am not able to figure out. I need to make it a full screen experience.
On the same iPad, Photos app when attached on external monitor shows full screen photos.
Any help would be appreciated.
PS. we have tried it with three different monitors. Full HD and 4K as well.
You need to set the overscanCompensation property on your second UIScreen instance to .none
Related
I use a UISegmentedControl, with 2 segments that spans the width of the screen.
This works as expected on iPhone. Tapping cat mode switches the highlight to cat mode, and the appropriate functions take place. However, on iPad, tapping Cat Mode does nothing. No highlight switch, no functions. If I start the highlight on Cat Mode, the same thing happens in reverse (all good on iPhone, Dog Mode can't be selected on iPad).
I use obviously one storyboard for both iPhone and iPad with Autolayout, and I'm not varying anything related to this segmented control for traits, so I have no clue what's going on. All other functions perform properly on iPhone and iPad.
Please let me know if I can provide additional info to help solve this question.
Thanks!
There was a Google Ad Banner blocking it. View debugger helped me see that. Thanks #matt for the suggestion to try it.
So I am new to iOS development and I have a question about the launch screen.
My app will have an image (that loads when the app opens from the internet) this can change anytime the image is updated on the website, so what is the done thing when designing a launch screen as the image could be different to what is on the launch screen?
Thanks
In Apple's Human Interface Guidelines, they suggest that the launch screen should match the first screen of your app. In the example they give, the only parts of the launch screen are the non-dynamic parts (the UI around the web content).
Design a launch screen that’s nearly identical to the first screen of your app. If you include elements that look different when the app finishes launching, people can experience an unpleasant flash between the launch screen and the first screen of the app.
The launch screen is presented before your app loads, and it should be used for static content only.
If there are any UI elements around the image that is displayed, show those in your launch screen. If not, choose a neutral background color that works well with the theme of your app.
Omit the image. A launch image should be a bare outline of what the screen will certainly contain. It might be no more than the correctly-colored background. It is just to cover the gap between nothing and something.
Read the Guidelines: https://developer.apple.com/ios/human-interface-guidelines/graphics/launch-screen/ Look at the picture on the left. That's a launch screen — basically empty.
LaunchScreen image is always the same..
You can set it in LaunchScreen.storyboard
The launch screen is used to display something whilst your app is initialising, making network requests or whatever.
You shouldn't be looking to load dynamic content here as if a user is on a very slow connection then they wont see anything until your image has loaded. This is why it doesn't have a view controller associated with it. it should be static.
You should only really be loading your logo or something in here, you could just use the company name. it will only show for a short amount of time. then when assets change, submit the changes to store
I use a Launch Screen (xib) in my app to overcome the problem of the resizeable screen, since i don't always want add Launchscreens everytime, Apple create a new iPhone with a different screen resolution.
In my launchscreen, i placed a UIImageView directly in the center of the view using constraints. The image shows the logo of the company i work for.
The problem is, that sometimes the image is being hidden (mostly after install and first launch) and sometimes it shows (mostly after a view times using it). I'm not quite sure, what the problem is. Is it because at the first-launch-time(s) it has to load many ressources?
Figured out the problem: It seems, that if there isn't enough disc space left on the device, it doesn't show the xib's (Launch-Screen's) Image. iOS at some point clears out some disc-space (i guess from NSLibraryDirectory) and than the images show again.
If this is a major problem to any of your apps, use Launch-Images instead.
Thanks in advance.
Is it possible to show a capture screen like assistive touch view in ios when we click on application icon.Means i want to show the iPad screen and top on the with transparent background a view need to display.
I want to create an app like this after clicking the app icon i want a screen like this on my main screen and i can able to customize it and capture the selected area. is it possible to do that. and is there any api for that.
i don't think you are allowed to capture the home screen in public api. this question had similar request.
How can I take a screenshot of the iPhone home screen programmatically
UIGetScreenImage() mentioned in the answer is very useful, if you only targeting Jailbroken phones.
However, i found an open source library called "Record My screen", which claim can
Record the display even on non-jailbroken iPhones.
I personally didn't test that, since i believe Apple would somehow find that and pull the app off (that happened to several apps before). If you really interested in it, maybe you can learn something from that library.
Hope that helps you.
I don't know if "mirroring" is the correct term for this, but I have an Ipad app that takes pictures and keeps them in core data. I've googled around but I can't find code for what I need.
What I want is for the TV to show an image different the iPad. For example, if I don't take any pictures, the TV shows saved images on the screen. When I take a new picture that stops and it shows the new picture.
I find what I wanted in the reference guide.
http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/AirPlayGuide/EnrichYourAppforAirPlay/EnrichYourAppforAirPlay.html%23//apple_ref/doc/uid/TP40011045-CH6-DontLinkElementID_3