I'm fine with Xcode 4 telling me that I have an error. But that pop-up pretty much always has the wrong solution. Is there any way I can get rid of it permanently?
From what I've seen, it looks like you may need to disable the various types of warnings one by one. A list is found here:
http://developer.apple.com/library/mac/#documentation/DeveloperTools/gcc-4.0.1/gcc/Warning-Options.html#Warning-Options
To change them:
Bring up the project navigator and choose your project. In the main window that appears, choose "All". Under the section "LLVM compiler 2.0 - Warnings", choose "Other Warning Flags". Add the flag "Wno-idiomatic-parentheses" for both "Debug" and "Release." Now clean and recompile ( from if(self = [super init]) - LLVM warning! How are you dealing with it?)
I noted in the apple dev link that the following option should inhibit all warnings:
-w Inhibit all warning messages.
Related
I have small app which runs on iOS and tvOS where I’m displaying a video in UIView.It does support iOS 12 and tvOS 12.
Now want to show PIP for tvOS hence trying to use AVPictureInPictureController gives error “Use of undeclared identifier 'AVPictureInPictureController”.
Even though deployment target set to tvOS 13. In Xcode, capabilities -> Background mode -> enabled “ Audio,Airplay and Picture In Picture”.
This basic code gives error.
#import <AVKit/AVKit.h>
if ([AVPictureInPictureController isPictureInPictureSupported]) {
// code
}
Any other settings missing or something else I need do ?
Thanks
Not supported in tvOS, as stated in Apple's documentation
SDKs
iOS 9.0+
macOS 10.15+
Mac Catalyst 13.0+
POSSIBLITY OF ISSUES DUE TO THE GAPS IN IMPLEMENTATION :
Experince with the AVPlayerViewController:
Initially make Sure that we set Playback audio category, Generally when we use a AVPlayerViewController to play video content. PIP mode will automatically get invoked if the developed application enters background , but only if satisfies the below mentioned condition,First one is the Player which we are using should be in Full Screen mode,the second is we should make sure that the Video Should be Playing in it and third one is PIP Should be supported by the device and last of all write delegate method to restore our player UI when the user returns from Picture in Picture mode.
Implmentation with _AVPictureInPictureController :
You can find an working example in the below thread.
How to display AVPictureInPictureController?
Drilling down the issue:
In order to confirm the undeclared error was not due to the gaps in implementation and it was due to environmnet in Xcode, Download the source and then add the Sources folder inside another folder in your workspace.Add the folder using "Add Files to ..." option and now verify inside xcode.
POSSIBLITY OF ISSUE DUE TO REFRESH IN THE XCODE
Try Fix By Approach 1
Include the class explicitly in header and/or body - instead of the *.pch file. Then this error might go away. Also deleting the derived data workes once in a while. Did you change the location in preferences recently by any chance. Some get this error when they use a ramdisk for derived data and then they go back to default. This is the most annoying case - since it causes this error to appear then in almost every file.
Try Fix By Approach 2
Sometime a simple solution might help delete one of the #import lines from the pch file and recompile which will fail as expected.Then put the deleted line back in, recompiled and it compiled normally with all the false errors gone.
POSSIBLITY OF ISSUE DUR TO XCODE ERROR CACHE, FOLLOW THE BELOW STEPS
Clean Build : Command-Option-Shift-K to clean out the build folder.
Reset Simulator : choose iOS Simulator > Reset Content and Settings
Restart Xcode
Delete your DerivedData folder in ~/Library/Developer/Xcode/DerivedData
Restart Computer
Delete the /var/folders in a very targetted way.
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
Source:
How to Empty Caches and Clean All Targets Xcode 4 and later
Xcode "Use of undeclared identifier" errors, compiles/runs just fine
Use of undeclared identifier in Xcode 9.0
https://developer.apple.com/documentation/avkit/adopting_picture_in_picture_in_a_standard_player
To create a simple video player
First, you'll need to implement a basic video player in your project's ViewController.m file, like so:
#import "ViewController.h"
#import <AVKit/AVKit.h>
#interface ViewController ()
#property(nonatomic) AVPlayerViewController *playerViewController;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor blackColor];
// Create a stream video player.
AVPlayer *player = [[AVPlayer alloc] init];
self.playerViewController = [[AVPlayerViewController alloc] init];
self.playerViewController.player = player;
// Attach video player to view hierarchy.
[self addChildViewController:self.playerViewController];
self.playerViewController.view.frame = self.view.bounds;
[self.view addSubview:self.playerViewController.view];
[self.playerViewController didMoveToParentViewController:self];
}
#end
For further help go through https://help.apple.com/xcode/mac/8.0/#/dev51a648b07
I'm using Aptana Studio 3 and am looking for a command that will take me to the previous editor I was in (a la Netbeans ctrl-tab or Eclipse's ctrl-F6). I've tried several commands with promising sounding names but none of them seem to behave properly. Any thoughts?
Go to Windows->Preferences->General->Keys and have a look at the key binding you have set for the commands 'Next Editor' and 'Previous Editor'. Type those commands in the filter search box to save yourself having to scroll.
On Windows the shortcuts for next and previous editor are in fact Ctrl+F6 and Ctrl+Shift+F6 respectively, which also happen to be the defaults in Eclipse. So if your key bindings for those commands are not set then you can set them here.
When I try to compile this project I get the following error.
I would like to find out more about this error. It says to pass -v to see more information.
How can I do that?
And how can I remove this library from the linker?
Also, and this is an aside question, but does this count as a compiler error, or is it just a link error?
To make your user experience more intuitive, Apple likes to make buttons invisible.
You can click on lines in the build log to make these buttons visible...
To make this interface even more obtuse er... I mean, more intuitive, some lines in the build log have these buttons already showing without needing to be clicked first.
It says, that the linker failed. The previous line is the linker's error message:
ld: library not found for -lPods.
To remove the dependency on the library, go to project’s “Build Settings” tab and remove -lPods from the key named “Other Linker Flags”. Or, if it's not there, open the “Build Phases” tab and look for it in the list named “Link Binary With Libraries”.
It’s a linker, not compiler error.
I want to delete this red-marked target, but am unable to.
The "minus" button in the dialogue remains greyed-out, it doesn't respond to backspace or delete keys and right-clicking just brings up help options. I can drag the missing-red-marked target above or below the working black target, but it doesn't let me delete it.
This missing red target only seems to appear in this edit schemes dialogue.
In my main project/target window, I just have the one good target there.
Any ideas how to clean this up and delete this missing target?
What worked for me was to designate another executable (or none) in the existing scheme's various actions (run, test, etc.). It's the fact it's in use in the scheme's actions that prevents its deletion. I discovered this during my research for Mastering Xcode 4 (yes, shameless plug). :-)
Try creating a brand new scheme (via "New Scheme" or "Manage Schemes...") and start using that.
Once your new scheme is building properly and is set as a default, you should be able to delete the old scheme with the bogus "missing" target.
The real issue here is explained by Joar Wingfors in the Xcode-users mailing list (emphasis mine):
In the scheme sheet you cannot delete things from one tab that some
other tab depend on. In this case you probably have to delete the
target from the test tab before you can delete it from the build tab.
Or something along those lines.
I had the exact same problem. Solved by closing the xCode and externally editing the schema file to delete the bundlableResource section for the missing library. Not the safest of all methods but it works.
First delete all schemes and then generate the schemes again. Work for me .
What Joshua said, a bit tailored. Go through all various actions and change the missing executable to an existing one.
In your case, go to 'Profile' and switch to the new app. Same if you encounter this in 'Test' tab.
I have an Xcode project I've been working on for months. I've never had a problem with NSLog, but after upgrading to Xcode 4.2 nothing will log to the console. I even tried throwing this in viewDidLoad:
- (void)viewDidLoad
{
[super viewDidLoad];
NSLog(#"Can anyone hear me?");
And nothing. Is anyone else having this problem or know a solution?
Well, this is embarrassing. The console got deactivated somehow and I was actually watching the variables window. Pressing Shift + + C did the trick.
Many thanks to Robert King on this thread:
https://devforums.apple.com/message/565880#565880
This is a bug of Xcode8 + iOS10, we can solve it in this way:
When on simulator, add the Name OS_ACTIVITY_MODE and the Value
Variables disable and check it (Product -> Scheme -> Edit Scheme -> Run -> Arguments -> Environment).
When on device, only add OS_ACTIVITY_MODE and check it（don't add the Value). You'll see the NSLog in the Xcode8 Console.
In iOS10, a lot of system logging is displayed on the console. This can be disabled by including the OS_ACTIVITY_MODE = disabled in the Run Arguments for your scheme
However for iOS10, NSLog messages will not be displayed anymore.
In lower iOS versions the messages will still be displayed. So maybe for most test cases you can use a lower iOS version.
Otherwise you can include a Swift function which prints (print function) your text, this is working okay in iOS10.
Tested on iOS10.0.2 and iOS9.3
My issue is that I have Debugger Output selected. Once I changed it to either All output or target output NSLogs appear fine.
In case this confuses you its on the left of the Debug area.
I had the same issue.
The trick is to search and remove the below mentioned line from the project.
#define NSLog(...)
Search the entire project and remove it.
I just experienced this, so here's another thing to check.
-> Make sure you don't have anything typed in the Filter field below the Log Output. So, in my case I was searching for a term in the logger and forgot to delete the searched terms out of the Filter text field. DOH!
My issue was that I'd accidentally severed the referencing outlet from App Delegate (delegate - file's owner).