I am working on an app in SwiftUI in Xcode 12.2.
I have accidentally deleted the Automatic Preview Tab. I cannot seem to find the option to bring it back. Here is a screenshot of my Xcode:
Where do I enable the Automatic preview and bring it back so I can see real-time updates of my UI?
An easy way to find it is from the menu "Editor > Canvas"
In your Xcode snapshot, there is a button the top right corner with a bunch of horizontal lines. Click it and then click Canvas and the preview should come back. FYI, the preview canvas is different than a Storyboard, which is what you included in the "What I want" image.
Related
In Xcode 11, there are two buttons next to the device preview. The one on the top we all know is the Live Preview. However the one on the bottom does not seem to be doing anything. Why would Apple leave a completely useless button there? Am I missing out some awesome functionality?
The button icon looks like it could be related to constraints... but I don't know.
This button lets you to instantly run the app on an attached device so you can see the live changes directly on your device instead of Xcode's canvas preview.
Note that you need iOS 13 installed on your device to be able to use this capability.
I downloaded Xcode 9.2 today and, admittedly I haven't attempted to do so in a while, I tried to render a view in the playground and kept getting a "empty image" in the sidebar.
Anyone know what's up?
I had the same issue, click the assistant editor to view the UI.
In the picture below, it's the icon highlighted in blue.
#Sam P gave the correct hint, however I don't see such button in Xcode 11.2.1 Playgrounds interface.
Enable Live View in the menu on the top right:
And the preview pops up:
I find it strange that they didn't make it any obvious :/
Updated to Xcode 9 and now some of my storyboard scenes are blocked out as shown below, and won't display in preview. I can select the controls but obviously editing is severely impaired. Based on related posts I tried cleaning the project, deleting derived data, and setting the interface builder document "Opens in" to the earlier version of Xcode, all with restarts. No results.
I've seen Xcode do this before but the issue has worked itself out quickly.
Any other ideas?
I think it's helpful for you In XCode 9:
Editor > canvas > show Bounds rectangles. This option show/hide the blue lines.
after that save project.
close the XCode.
open the project files.
I am using Xcode 6.3, but I am not able get preview and Resizing button. The resizing button should be present at last in the attached image.
There is 4 buttons in this panel before xcode 6.3
I am not able to see the last button of the following image:
So how can achieve that 4th button?
Ok there is no option Preview and Resize in xcode 6.3....
If you want to check constraints then the option is Document outline and for preview .... just check below..
first select show assistant editor....the left and right panel shows controllers....
and now follow this image
When viewing UI simulators in the Xcode assistant preview pane - There is no way to view multiple simulators. I can only see the first simulator added, any additional simulators which I have added are placed offscreen and there is no scroll ability to move the preview view so as to see these other simulators.
Please help ...
If I understood you correctly, you successfully added previews but they are placed offscreen.
That is not really a problem, just zoom-out to see all previews. (Using pinch zoom on the trackpad)