I want to share a note in Notability app on my ipad as a white board for an online Zoom lesson.
For that I connect my ipad to my mac through cable, and mirror my ipad screen to my mac using the Zoom application's option of share of ipad via cable.
The ipad's screen is mirrored, namely, appears on my mac (usually, sometimes it doesn't and I have know idea why). However, the ipad's Screen Mirroring window (accessed via the ipad's control center) is stuck in a weird intermediate state: it keeps thinking and does not show any devices, but does show a Stop Mirroring button. In addition, Notability app in the ipad does not recognize the mirroring and does not enable the new presentation mode (but rather keeps showing the Send-to button instead of the display-mode button). For some reason, the mirroring occasionally does work fine, but usually it doesn't, and I cannot replicate what causes it to work.
How can this be fixed?
(My mac, ipad and notability are all updated: versions 10.15.4, 13.4, 9.3.1 respectively.)
Related
I have a problem with the Sidecar and Touch Bar feature of iPad and MacOS Catalina.
I can connect and see everything on the iPad including the Touchbar.
If I focus an application which is displayed on the iPad the Touchbar shows the corresponding Touchbar correctly.
After focussing an application on one of my other displays (MacBook or external HDMI displays) the Touch Bar does not update and change.
If I put that application on the iPad screen, then the TouchBar changes and shows the corresponding items.
This is really annoying when I am working with programming IDEs with nice TouchBar support. But I really don't want to put that IDE on my smaller iPad screen.
Is anyone else experiencing this and/or has a workaround?
Cheers
I was wondering if there was another way for the browser to detect if the device is an iPhone or an iPad. When the user switches to desktop mode, the user agent string reports the device as a macOS Catalina. I have found a way to detect if the device is a mobile device but I can't find out if it is an iPhone or an iPad, and since we show different web components based on the device, this information becomes important.
I tried looking at javascript `screen.width property which gives the UIKit Size of the screen. This would have been a hack to identify the devices until the previous generation of devices, but the resolution of the iPhone 11 Pro exceeds that of one of the older iPads. Are there any other suggestions on detecting the devices that can be done with the browser on desktop view?
I am working on an App which should be able to run on iPhones and iPads.
I have been able to run it on iPhones and it is displaying perfectly. But when I run it on an iPad the App itself is very zoomed in. I am not sure what main issue.
This is how it displays on iPad:
And this is how it comes up on an iPhone:
Any idea how to fix it or what the issue is?
Your app isn't made to run on the iPad. When displayed on the iPad, it just stretches the display of the iPhone version (you can see that by the 1x button on the lower right corner of the screen). You need to setup your XCode project as a Universal App (instead of it being just for iPhone) and then you'll be able to take advantage of the entire iPad screen and design the display especially for it.
You can set the app as Universal on your project properties in XCode:
We're developing a web app that extensively uses Cavas 2D for some demos, and is successfully running on both iOS and Android devices. Recently we've added stand-alone mode for iOS devices, so user has to "Add-To-Home-Screen" and run it using screen icon, just like regular app.
What happens recently is that after 10-12 times we start the web app on iPhone4:
Status bar (initially set to 'black') suddenly turns white and we cannot exit Safari (by pressing home button).
If we try to make screen shot (home + power button), shutter sound is played as if screen shot was taken and saved.
If we try to lock the device (power button), screen turns black, but no action after that can bring unlock-screen or any screen for that matter - display remains black.
We can only do reset by pressing home + power for 10 seconds after this point.
If we do not lock the device, web app continuously work with no issues at all, it does not crash, but cannot exit it (double click on home button also has no result).
Has anyone experienced this with their web apps?
Any guidance in how to debug this would be highly appreciated. We've tried using Safari on OSX, connect iPhone to it and use Develop -> iPhone menu but no luck so far.
Thanks in advance!
I would start trying to debug by running XCode with the iPhone connected to the computer.
In XCode open "Organizer" and go to the tab "Devices".
You should see your device there, from which you can view the iOS console. That might be able to tell you what is going wrong with the phone stops responding.
I don't think you have to put the phone in development mode (or be a paid developer) to see the iOS console.
I'm trying to get an external screen for an iOS iPad app up and running. Currently I just could test this with the iOS simulator (VGA connection kit is on it's way).
My problem is that when starting the app in landscape (left or right) or portrait upside down the external display remains black. If started in normal portrait mode then everything is fine.
You can test the whole thing with the sample project provided by Apple. It works in 1 of 4 cases (see below) and behaves exactly like my project:
https://developer.apple.com/library/ios/#samplecode/ExternalDisplay/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010724
Steps to reproduce the problem:
Start your iPad 6.0 simulator by hand (not via Xcode, run project).
In the menu bar: Hardware > TV-Out - pick a screen resolution. A second window will appear and act as a second screen.
Turn it via CMD+ArrowLeft/Right to landscape-left/right or portrait upside down.
Now run the project in your iPad 6.0 simulator.
If the application has started (don't worry, this app just was not designed by Apple to rotate its interface correctly) press the button in the navbar.
-> The second screen will remain black.
Same test in protrait mode (will work correctly):
Quit the simulator, repeat steps 1,2,4,5, don't turn the simulator, leave it in normal portrait mode.
-> The second screen will be filled.
Now I wonder why that is. It's not very nice to only have the second screen at hand if the app was started in portrait mode. And it's not very pleasant to develop and test with this problem.
Funny thing is that whenever you start the app in portrait mode it works, but if you start it once in an other orientation it won't work anymore till you restart the simulator.
Maybe you can also tell me if this is also a problem with the real device and a connection kit / airplay.
Concrete questions:
- Is this bahaviour of the simulator normal?
- Did I just forgot something?
- Is this problem just occuring in the simulator and not with running apps on devices connected to a seconds screen?
Thankful for any hint or advice!
Problem has solved itself. With the newest versions of Xcode/iOS Simulator it works as expected now. The code iteself was ok, just the Simulator did not handle everything like it would happen with a real device.