I recently heard about this GUI view hierarchy in Xcode. And I have used it many times. But I sometimes when I run the app, the button is not there at all.
Can anyone please tell me when exactly will the button be visible when debugging??
Only iOS 8 or better targets (simulator or hardware) get the button . You won't see it for an iOS 7 target.
Related
I have an old project that I've been working on and off on for about 4 years now - the project has gone through many upgrades of XCode versions from 6 to 10 (I'm now using XCode 10.2.1 with 12.2 SDK). The main problem I'm having with it is that it utilizes a Tab View Controller to switch tabs, and no matter what I do, I cannot get the tab bar to appear on the bottom of an iPhone X family device correctly: it appears much higher than it should.
To try and finally narrow down the problem, I've essentially temporarily "replaced" all code and storyboard items from the project to see if anything will move the tab bar to where it's supposed to (if I just create a blank new project with a tab bar controller, the tab bar does appear where it should). I created a test storyboard with just a Tab Bar Controller going to one navigation controller (no constraints have been put in). There is no viewController codes attached to them. I've replaced the app delegate with a "blank" app delegate so there are essentially no extraneous code or restraints there at all. And I still get the tab bar moved:
This happens on the simulator and the device, and there is no code or storyboard setting that's doing this (this same setup on a new project puts the tab bar in the right place).
I've looked around in the Build Settings and other properties that I may have missed to see if I constrained something years ago that may affect this, and didn't see anything.
Is there anything I should be looking for in the project settings that would do this?
I don't want to rebuild the project in a new project - there are many linked libraries, certificates, cocoapods, storyboard items, and I know it would be horrible to try and put it all back in one piece.
My Deployment Target is set to iOS 11, Devices: iPhone, Base SDK: iOS
Any help would be greatly appreciated!
This is usually caused by not having a correct launch image for the iPhone X. The easiest way to fix this is to tell the app target not to use launch images (from the app bundle or from the asset catalog) but to use the LaunchScreen.storyboard instead. (If you don't have one, make one; be sure to set it as a launch screen storyboard by clicking Use As Launch Screen and configure your target to point to it. Examine a plain vanilla new project to see what I mean.) You might not want to keep things that way in the long term but at least it will allow your app to launch to the correct size on all devices.
I am making my iOS Application Compatible with iPad.I have designed the UI of my Application with Xcode 7 with size classes which is more specifically designed for iPhone, Now i have to upgrade it to support iPad also.
Now with Xcode 8 when i select iPad from Storyboard with Device Pan then most of the controller are Greyed i.e. those controllers are not showing on iPad on the device also and on the Storyboard also. Please check the screenshot for that
I know the reason why they greyed out, because they are designed with size classes for a different size.
Now my question is, is it possible somehow to use this controller for iPad without Redesigning the UI and updating the Auto layouts, as of now i am not seeing any way to make this controllers available for iPad.
Also i have tried with a way but i think that will be very long, I have to delete this controllers and then add it back and set the layouts again.
Also another way would be design separate storyboard.
So please suggest me what will be a better solution to overcome from this.
Thanks
Even after compatibility conversion to Xcode 8, if still it doesn't seem to work, then you need to check if there are any leftovers like below:
If you want to make sure it works with any width and height, find the constraint:
and remove it by clicking on the x, leaving only installed checked:
That should solve it for Xcode 8.
I have installed xcode 7 and run many apps on the same. But suddenly when i restart the xcode it hides the device header and run icons in top left bar.
Thanks in advance for help !
This is a exsisting bug with XCode 7 I see on our systems.
It happens when more than one project are open at a time.
The first Window will keep its bar, but all other will open without it. Sometimes hiding/showing the toolbar help, but that works only two times or so. Then a restart of XCode is the only cure.
Apparently you hid the toolbar. To reenable it: Select View -> Show Toolbar
I'm writing a very first program for iOS in Xcode 6 (Single-view application).
I added a label and ran a simulation.
I have seen this label on a simulator. But when i added an additional button on a Main.storyboard's ViewControler and rebuilt the project - the was no any button. It seems like simulator ran first version without the button. How can i launch last version of my project on a simulator?
Thanks.
Xcode 6 run by default with auto layout enabled along with size classes also enabled..
you can check that by disable both of them by going to your storyboard and show file inspector (you'll find it on the right side pane)
And then rerun the app.. if you find the button in its place.. then you should start learn how to use the auto layout cause it's essential now by apple to support any universal app you wish to create in the future .
I am following the course on iOS through iTunes university and working on the calculator project. I moved the controls on the storyboard to make room for another control at the top. Everything looks fine on the storyboard but when run in the simulator, controls are bunch up, on top of each other, and some are clearly off the top of the simulator screen. This leads to the following very related questions.
How does one move controls around on the storyboard? I went to the size inspector of each control (buttons in my case) and changed the 'Y' value (increased it by 10). I did this for each control. I didn't think about it as I was doing it because as I said, all looks fine on the storyboard. Is there a better way to move controls around? I could not figure out how to grab more than one control at a time and move them. Grabbing all and moving or all but one and moving would have been ideal.
I anticipate someone is going to say, "We need more info. " How do I show the storyboard? Is there a xml file somewhere? How is the storyboard saved? How should I show the results of the simulator?
In general, what the heck is going on? Why would things look so different in the simulator?
Is there a better forum/group to ask newbie questions about iOS programming?
My specs are these:
XCode 4.5.2
Ios simulator versions set to 6.0 and iPhone
Any other info needed? Thanks in advance,
Dave
Try setting your simulated device size to 'freeform' instead of 'inferred'. This screen is a bit smaller so the controls are no longer overlapping. The latest xcode sets it by default to ios6 (screen size of iPhone 5)
edit For a better insight in xcode IDE, please refer to the documentation provided by apple (includes screenshots for clarity)
https://developer.apple.com/library/ios/#documentation/ToolsLanguages/Conceptual/Xcode4UserGuide/000-About_Xcode/about.html#//apple_ref/doc/uid/TP40010215