“SwiftData inheritance relationship”

iOS's Autolayout is an official view layout solution。AutoLayout through the veiw's constraint relationship to create the UI Layout。The disadvantage is that with the increase of UI elements, the complexity of the constraint will increase。 Here recommend MyLayout。MyLayout is a powerful iOS UI layout framework which is not an encapsulation based on the AutoLayout but is based on primary frame property and by overwriting the layoutSubview method to realize the subview's layout. So It is unlimited to run in any version of iOS system. Its idea and principle is referenced from the layout of the Android system, iOS AutoLayout and SizeClass. You can implement the UI layout through the six kinds of layout class below: MyLinearLayout, MyRelativeLayout, MyFrameLayout MyTableLayout, MyFlowLayout,MyFloatLayout and the support for SizeClass. You can visit my github project: https://github.com/youngsoft/MyLinearLayout to see more..

Say I have a NSManagedObject subclass (Parent) with a to many relationship to another object (call the relationship children).To display children sorted, I could add a method like this to Parent:-(NSArray*)sortedChildren { NSArray *sorted = [self.children sortedArrayUsingDescriptors:@[[NSSortDescriptor sortDescriptorWithKey:@key ascending:YES]]]; return sorted; }It would not be efficient to resort the children every time I need to access sortedChildren. I suppose I could keep a sorted copy in a property and override all the generated methods to add/insert children make sure the sorted array picks up changes....and nil it out in the didBecomeFault method? Is there a better way to do this? There can potentially be a lot of children so I do want to avoid a method like above.

Hi developers,I am new to the iOS and image processing and have some questions. I saw iOS 10 is going to support the RAW capture, and I wonder if this could make the real long exposure possible?It looks like the long exposure camera apps in the app store (i.e. slow shutter cam) are doing post-processing based several frames that are not RAW data. Therefore, the image is going to be effect by the post-processing inherit from Apple's algortihm and the compression of JPEG format, which is the part we can't control before iOS 10.As far as I know, RAW format is basicly everything that CMOS sensor captures (which I assumes to be RGB energy intensities). If we have the several frames of RAWs, I wonder if it is closer to have a real long exposure by summing the intensitiies as what we do in phyiscally long exposure? Thanks.

In Xcode on my data model, I created a new version and just modified a relationship to be optional (instead of non-optional).Running my updated app with a large database created using previous model version will cause the first save to run really slow. This happens after each app launch!If I build a large database from scratch using my updated app (means, using new model version) there will be no issue.Note that I modified the relationship on an entity holding an image data (blob).Any thoughts?

I am trying to use removeFromSuperView with a UITextView Object but it is giving me the following error: No visible @interface for 'UITextField' declares the selector 'removeFromSuperView'This seems strange since UITextField is a subclass of UIView, so it should inherit the removeFromSuperView method. I have tried the same method for buttons and it works great. Here is how I am calling it: [self.exitButton removeFromSuperview]; [self.teacherText removeFromSuperView];I set up my UITextField programmatically, it is declared as follows: in .h: @property(nonatomic, copy) UITextField *teacherText; in viewDidLoad of .m: _teacherText = [[UITextField alloc] initWithFrame:CGRectMake(45, 30, 200, 40)]; _teacherText.textColor = [UIColor colorWithRed:0/256.0 green:84/256.0 blue:129/256.0 alpha:1.0]; _teacherText.font = [UIFont fontWithName:@Helvetica-Bold size:25]; _teacherText.backgroundColor=[UIColor whiteColor]; _teacherText.text=@Hello World; [self.view addSubview:_exitButton];Is there anything I am missing?

I have a UIViewController which inherits from GCEventViewController and I register a value change handler for the GCController microPad Profile.But when I use the SiriRemote in the Simulator none of my handling methods is called. When I stop with the touches the touchesEnded function is called though on that particular view controller.This is are excerpts of my code: var gameController : GCController? { get { return self.currentGameController } set(v) { self.currentGameController = v self.controllerUserInteractionEnabled = false if let microPad = v!.microGamepad { microPad.allowsRotation = false microPad.reportsAbsoluteDpadValues = true microPad.valueChangedHandler = self.microPadValueChangeHandler } } } ... override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) { log.info(||||| TOUCHES ENDED IN GAMEVIEW_CONTROLLER |||||.) } func microPadValueChangeHandler( _ gp : GCMicroGamepad , _ gc : GCControllerElement ) { log.info(||||||||| microPadValueChangeHandler ||||||) log.info(||

My app runs fine but I've got a warning in Xcode 7.3.1 that says:Segues initiated directly from view controllers must have an identifierOn my storyboard and also in my code all segues have identifiersIf I double click it takes me to the end of the source code for the view controller. There is no mention of segue there..If I search the source code the only segue I see without an identifier is on the root view controller… Any Ideas?Thanks!<scene sceneID=9W3-l5-iKf> <objects> <navigationController automaticallyAdjustsScrollViewInsets=NO id=CIC-k8-VJ6 sceneMemberID=viewController> <toolbarItems/> <navigationBar key=navigationBar contentMode=scaleToFill id=fS8-Bl-fda> <rect key=frame x=0.0 y=0.0 width=320 height=44/> <autoresizingMask key=autoresizingMask/> </navigationBar> <nil name=viewControllers/> <connections> <segue destination=BYZ-38-t0r kind=relationship relationship=rootViewController id=3Fr-zs-F5x/> </connections> &