Is there a way to access typealias, functions, classes and structs defined in one .swift file from another .swift file?
I attempted to access a public func() and public class() defined in one .swift file from a different .swift file but failed:
Environment.swift:
MainViewController.swift:
Apparently my Xcode project got corrupt.
I created a new project and repeated the pattern.
...occasionally, I find that a Xcode/Swift project appear to work like a 'loose light bulb' that needs to be tweaked/cleansed... or replaced to have a working solution.
This time it works.
Related
So, when my data model is ready, I tried to generate the subclasses when my data model file is open:
Editor -> Create NSManaged Object Subclasses
Okay, two files are generated, one is class declaration, the other is the property.
However, I was immediately prompted that I did a redeclaration of a class that already exists. This is where the original generated files are:
previously generated files
My question is obvious:
When were those two files generated?
What to do if I want those files in my project navigator, and, of course, the same folder as my ViewController?
It is common to make changes to an existing entity on the core data model.
Assume you add a field to an existing entity in the core data model, you would have to regenerate the class for that entity to include that field.
When regenerating that class there would be a an option to overwrite the existing files.
To answer your questions:
It was probably created when the previous entity change was made.
Move the previously generate files to the desktop. Then generate new files. See what the difference between the 2 sets of files are and take appropriate action. If I am not wrong, one file would be an extension and one is a class file.
You are generating files which have already been generated for you by Xcode and thus get duplicate declarations.
Find detailes in this answer.
So, the correct answer seems like the one who commented on my question. Original post is here: https://stackoverflow.com/a/39933534/5642467.
Delete all generated NSManagedObject subclasses from your project, if exists.
Set Codegento Manual/None in your .xcdatamodel for all entities
Clean project.---This is the key step, which is by default set to automatic by Xcode8.
Clean DerivedData folder
Restart Xcode
Manually generate NSManagedObject subclasses (in "Editor" menu)
Make sure those files are added to your project
build
If your problem persists, repeat:
Clean project
Clean DerivedData folder
Restart Xcode
In your xcdatamodeld you have to modify the Entity Class Codegen to Manual/None in the Utilities Panel before compile
I have a maxforlive device using java/mxj.
I used all of these options to include my java files during development:
Including my (maven) target/classes directory through max.java.config.txt.
Adding a directory through Options > File Preferences
Adding a jar to the automatically generated (OSX) ~/Documents/Max 7/Max for Live Devices/MyProject Project/ directory
All of these paths work fine i.e. the files are picked up and my mxj object works.
However, when i freeze the device for publication, java files are not included from any of those paths.
I tried to make sense of
https://docs.cycling74.com/max7/tutorials/jitterchapter99_appendixd although I'm not building a standalone, but a freezed maxforlive device, so I included max.jar and mxj.mxo in the Project folder which did not work either.
When I copy my target/classes or target/classes/myproject folder into the generated Project folder (/code, /code/classes, /classes), max moves all the class files out into /code, creating a lot of work for me while not even picking the classes up for dev.
I saw devices on maxforlive.com with properly included java files, so I know it can be done. How can I achieve this?
Unfortunately this is a long standing bug in MFL.
Here is a movie from 2012 where I reproduce this, it has not been fixed since. http://arttech.nl/projectjavaissue.mov
This means that the only way to distribute MFL devices with java class files is to include them separately.
Ok, so here it is: Including just a single class with no other class dependencies except MaxObject works fine. There's also no need to add .java files like I said in my previous comment.
All you need to do is:
have the working mxj object in your patcher (doesn't matter where you saved it)
click the button on the bottom that says "Show containing project" on hover
add your classfile
freeze
When you have more classes, it gets complicated.
1) If you have your typical java hierarchy with folders and subfolders, that won't work. As you have to add each file separately, the hierarchy will be destroyed. Use a jar and add it to the containing project.
2) Here it comes, believe it or not: All the classes you are going to use will have to be loaded on first instantiation. I call it static class allocation ;)
A way to achieve that:
create a new instance of every class in the constructor of the class that extends MaxObject or any other constructors it calls. That includes classes with only static methods.
if you happen to use interfaces and create implementations of those dynamically (new Runnable() {...}), don't. Dynamic implementations are new classes.
Fun fact: you can override methods of classes, too. So go
class Runner {
public void run() { throw new Exception("not implemented"); }
}
then you can dynamically create a
new Runner() {
public void run() {
MaxObject.post("Even Mr. Gosling says interfaces were a mistake!");
}
}
Don't believe it? I don't blame ya. Look at
https://github.com/mihop/mxj-wsserver
and
http://www.maxforlive.com/library/device/3809
to be converted.
I added the Facebook sdk code to my project then I got this error because I already had a json library, so I deleted the Facebook json library from my computer and from the project but I still get this error. I search the whole project for "#interface SBJsonBase" and I only get one result. How can it say it's a duplicate when I only have one interface? Is it including the file twice? Does the search not always find everything?
May be this helps? Delete your derived data and do a clean project, then try to build again
I had a simular problem. It was a small search, but I could solve it without creating a new project etc...
The thing was I had a Class B that was importing Class A.
Then I had a class that imported Class B and also Class A.
When I did this, these problems occured.
Eg. A SOAP webservice Class imports all the Entities that are passed over the web.
Class goToSchoolWebservice.
import "person.h"
import "school.h"
...
Then I had a Singleton class used for caching that had the Logged in Person and also a ref to the webservice class.
import "person.h"
import "goToSchoolWebservice.h"
--> this is where is went wrong!!
So watch out for these circular references. ITs not so easy to detect them!
if your using #include instead of import then use this technique to minimize duplicates: at the begining of your interface (actually right before it) do check for a definition and if not defined then define it and proceed to define your interface. here is an example:
#ifndef __NetworkOptionsViewController__H // check if this has every been imported before
#define __NetworkOptionsViewController__H
#import "blahblah.h"
#interface NetworkOptionsViewController : UITableViewController
{
NSMutableArray* somevariable1;
int somevariable2;
}
#end
#endif
-- for me personally, i got this error though because the file path to my class was wrong. I checked file inspector and my class file was not defined in Classes folder even though the IDE said it was. I deleted them and copied them over again.
For those that still get this error, despite following header import conventions: I got this error from importing a header that had been deleted from the project. The missing header was instead found in an old backup of my project in dropbox (That I made before doing some destructive stuff in Git), and that file caused the circular import.
I solved a similar problem by moving all the imports to the prefix header file.
I have a C# application that I am trying to re-create through the use of CodeDom. This application has four classes inside of it. If I were to go into this applications directory, I would find the project file (App.csproj), and if I were to start this project file, all four classes would load together. Furthermore, if I were to build this application, all four classes would build together.
My Question: How on earth can I create this functionality through the use of CodeDom?
I have sucessfully created one of the four classes using CodeDom, but how can I go about creating the next three classes (and linking them) to the first class that I already created?
I know this may sound confusing but I will explain more if necessary.
If the classes are in the same namespace you can add them all to one CodeNamespace object and generate the code from that.
If there in different namespaces you can add the namespace of the other Classes to your first class by adding the namespaces reference of the other class's to the namespace object you are working in:-
// Add the Namespace of the other class to the current namespace onject
defaultNameSpace.Imports.Add(new CodeNamespaceImport("Project.Namespace.Namespace"));
Where defaultNameSpace is a type of CodeNamespace. The first Class you have built is added to this CodeNamespace object as below and then the code is generated from that :-
defaultNameSpace.Types.Add(mainClass);
mainClass being a type of CodeTypeDeclaration.
Hope this helps.
I have an ASP.NET 3.5 web application project in which I'm trying to implement a searchable gridview. I originally started the project as a web site and converted it to a web application. After conversion, my class ended up in the folder Old_App_Code and is called SearchGridView.vb.
Imports System
Imports System.Collections
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Text
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Drawing.Design
<Assembly: TagPrefix("MyApp.WebControls", "SearchGridView")>
Namespace MyApp.WebControls
#Region "TemplateColumn"
Public Class NumberColumn
Implements ITemplate
Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.InstantiateIn
End Sub
End Class
#End Region
<ToolboxData("<{0}:SearchGridView runat=server></{0}:SearchGridView>")> _
<ParseChildren(True, "SearchFilters")> _
Public Class SearchGridView
Inherits GridView
The class file continues, but this is the first part of it.
Unfortunately, I receive the error message
Warning 1 Namespace or type specified in the project-level Imports 'MyApp.WebControls' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. DielWebProj
In web.config, I included a namespace tag for MyApp.WebControls and I included an imports tag in the .aspx page as well.
Can anyone shed light as to why this error is being raised and how I would remedy it?
Thanks,
Sid
I have a broadly similar problem to you. I have a website project using a custom control, inheriting from GriView, in the app_code folder. I was recieving the very same error, but noted that it happened only after I would add a second class or module to app_code, and would disappear if I removed it.
So the workaround I have at the moment is to just leave my custom control as the sole occupant of app_code.
One option might be to make the control part of its own project and add it as a reference to the we site/app?
I'll update this if I can find a decent solution.
EDIT:
Well, in my case it was because the control I was using was written in C#, whereas the rest of the project, and classes I added to app_code, were in VB.
The app_code folder is compiled to a single assembly, so classes of different languages cannot share it, unless you create seperate sub-folders and do some config file jiggerypokery. More details here