I have an exception using this code ;
let readingData = NSKeyedUnarchiver.unarchiveObjectWithData(data) as? [ExternalProjectClass]
The message in the console :
cannot decode object of class (MyIOSApp.ExternalProjectClass) for key (NS.objects); the class may be defined in source code or a library that is not linked'
I use 'ExternalProjectClass' class in 2 project in the same workplace. In MyApp application (mac version). Otherwise I can use my class normally, I only have problems with coding.
I know how poor is my english. I hope somebody can help me.
Regards.
Swift class names have namespaces, and the default namespace is module name. So if you move the archive from an app to another, the class name differs.
You could put #objc(ExternalProjectClass) attribute on your class, so it is called ExternalProjectClass as far as NSCoder considers.
#objc(ExternalProjectClass) class ExternalProjectClass: NSObject, NSCoding { ... }
Related
Am I completely missing something? Trying to build the absolute most basic project with phantom is causing this error:
could not find implicit value for parameter helper: com.outworkers.phantom.macros.TableHelper[models.Accounts,models.Account]
build.sbt is using version 2.12.1.
Account.scala is this:
package models
import com.outworkers.phantom.dsl._
case class Account(username: String)
abstract class Accounts extends Table[Accounts, Account] with RootConnector {
object username extends StringColumn with PrimaryKey
}
I thought I was following the quickstart documentation, but I cannot get this to compile at all. Meanwhile, the Play-Cassandra project compiles just fine.
Writing here for future Googlers, this is because your schema does not define a PartitionKey, which is a requirement. The compiler should issue a warning when the macro is summoned.
package models
import com.outworkers.phantom.dsl._
case class Account(username: String)
abstract class Accounts extends Table[Accounts, Account] {
object username extends StringColumn with PartitionKey
}
On a side note, extending Table already brings in RootConnector, so you do not need to explicitly extend it again, as it was the case in older versions of phantom using CassandraTable instead of Table.
I'm using sharpie bind command to get API interfaces for my iOS library for xamarin
sharpie bind --namespace=XXX --sdk=iphoneos9.2 Headers/*.h
Have issues with #protocol bindings:
The type or namespace name `IProfileDelegate' could not be found. Are you missing an assembly reference?
This is how it's generated:
interface XLibrary : IProfileDelegate
{
[Wrap ("WeakProfileDelegate")]
[NullAllowed]
MB_ProfileDelegate ProfileDelegate { get; set; }
I understand that it creates empty ProfileDelegate then compiler or something fills it with methods BUT my issue is that IProfileDelegate not found.
#protocol ProfileDelegate <NSObject>
#required
- (void)GetProfileFinished:(NSString*)_data;
- (void)SetProfileFinished:(NSString*)_data;
#end
Difference here in I symbol (which is reserved for #protocols I guess).
How to make sharpie generate proper api definitions?
I'm able to remove all I prefixes and it compiles successfully but I'd rather fix it not to repeat this every time I need to update source library.
Thanks
Remember that all the obj-c protocol act as a interface or abstract class i recommend to put "protocol, model and set base type as nsobject, another thing all the methods or properties maked as a "required" you need to specify it as Abstract
[Protocol, Model]
[BaseType (typeof(NSObject))]
interface myAwesomeDelegate
{
[Abstract]
[Export(...)]
void myRequiredMethod(uint param1)
[Export(...)]
void anotherMethod()
}
hope this will help you to fix your issue
According to the Objective Sharpie documentation:
In some cases these generated files might be all you need, however more often the developer will need to manually modify these generated files to fix any issues that could not be automatically handled by the tool (such as those flagged with a Verify attribute).
This means you will sometimes have to adjust the two generated files, ApiDefinitions.cs and StructsAndEnums.cs to fix issues, such as the one in this case.
You can read more about how bindings work for Objective-C protocols, which are similar to C# Interfaces, but not quite in the binding documentation.
I created a Service for my app, the menu appears correctly, but I still have a problem with the method called when the menu item is activated.
In AppDelegate.swift I have:
func applicationDidFinishLaunching(aNotification: NSNotification) {
NSApplication.sharedApplication().servicesProvider = ServiceProvider()
NSUpdateDynamicServices();
}
And the class ServiceProvider is:
import Cocoa
class ServiceProvider {
func serviceTest(pasteboard: NSPasteboard, userData: String, error: NSErrorPointer) {
// code here
}
}
When the service is activated I want to send some information to the components of my app, for example, to change the text of a label. How can I do this? I tried to get the mainWindow inside the function serviceTest to access its components, but it returned nil.
I am trying to do something similar to the Safari service that you select some text, and right-click > services > search with google. This open Safari and search for the selected text. Or something similar to add a new task to Wunderlist, that gets the selected text and create a new task in the app.
I really appreciate some help to solve this issue.
This is just the general problem of getting access to objects in various parts of a program. There are two general mechanisms: start with a well-known object or have the object(s) you need passed in to you by the part of the code which knows about both object.
For example, you can get to the application delegate using NSApplication.sharedApplication().delegate. You would then cast it to your custom app delegate class and access its properties.
However, it's probably better to avoid relying on pseudo-global variables if there's a simple alternative, and there is. Give your ServiceProvider class the necessary properties to track the objects it needs (like the app delegate). In the app delegate code which creates the ServiceProvider instance, simply set those properties. That may be in statements to set properties after it has been created or you could pass it in to the initializer method as an argument. Obviously, you'd need to declare that initializer method to take the argument and store it in your instance variable.
So I am running into some issues when I am trying to load information from a file.
myMutableArray=[[NSKeyedUnarchiver unarchiveObjectWithFile:dataFile]retain];
This is the line that gives me the NSinvocation problems
* NSInvocation: warning: object 0xf9f500 of class 'myClass' does not implement methodSignatureForSelector: -- trouble ahead
* NSInvocation: warning: object 0xf9f500 of class 'myClass' does not implement doesNotRecognizeSelector: -- abort
I have looked through other questions and other sites to try and find an answer.myClass does inherit from NSObject, and my customer view controller inherits from UIViewController. My customer view controller implements the code above. The save file I am loading from does exist. Not sure what I need to do for this, any help would be appreciated thanks!
So I had an issue within myClass that I was not encoding something but I was trying to decode it after. I just had to add a line of code and delete my old save file.
Am having problems understanding where classes should be kept in CI. I am building an application that describes / markets mobile phones.
I would like for all of my functions (i.e. getphone, getdetails etc.) to reside in one class called Mobile - I understand that this file should be called Mobile.php and reside in the controllers folder.
Can I then have multiple functions inside Mobile.php? E.g.
public function getphone() {
xxx
xx
xx
}
public function getdetails() {
xxx
xx
xx
}
Or do I need to put each function in its own class?
I'd really appreciate looking at some sample code that works. I've been going through the documentation and google for a few hours, and tried all sorts of variations in the URL to find a test class, but without much luck! I've even messed around with the routes and .htaccess...
All I am trying to achieve is the following:
http:///model/HTC-Desire/ to be re-routed to a function that accepts HTC-Desire as a parameter (as I need it for a DB lookup). The default controller works fine, but can't get anything to work thereafter.
Any ideas?
Thanks
Actually it works like this:
Controllers and Models go to their perspective folders as you know it
If you want to create functions that are not methods of an object, you must create a helper file. More info here :
http://codeigniter.com/user_guide/general/helpers.html
Now if you want to create your own datatypes (classes that don't extend Models and Controllers), you add them to the library folder. So if let's say you want to create a class "Car" you create this file:
class Car{
function __construct(){}
}
and save it in the libraries folder as car.php
To create an instance of the Car class you must do the following:
$this->load->library('car');
$my_car = new Car();
More information on libraries here:
http://codeigniter.com/user_guide/general/creating_libraries.html
Yes, you can have as many functions in a controller class as you'd like. They are accessible via the url /class/function.
You can catch parameters in the class functions, though it's not advisable.
class Mobile extends CI_Controller{
public function getPhone($phoneModel=''){
echo $phoneModel;
//echo $this->input->post('phoneModel');
}
}
http://site.com/mobile/getPhone/HTC-Rad theoretically would echo out "HTC-Rad". HOWEVER, special characters are not welcome in URL's in CI by default, so in this example you may be met with a 'Disallowed URI characters" error instead. You'd be better off passing the phone model (or any other parameters) via $_POST to the controller.
Classes can exist both as Controllers and Models, as CodeIgniter implements the MVC pattern. I recommend reading more about that to understand how your classes/functions/etc. can best be organized.
Off the top of my head, Pyro CMS is an application built with CodeIgniter and the source code is freely available. I'm sure there are others.
I think it's best you handle it from one perspective, that is; create a utility class with all your functions in it.
The answer to the question of where to put/place the class file is the "libraries" folder.
This is clearly stated in the documentation. Place your class in the libraries folder.
When we use the term “Libraries” we are normally referring to the
classes that are located in the libraries directory and described in
the Class Reference of this user guide.
You can read more on creating and using libraries Creating Libraries — CodeIgniter 3.1.10 documentation
After placing the newly created class in the libraries folder, to use just simply load the library within your controller as shown below:
$this->load->library('yourphpclassname');
If you wish to receive several arguments within you constructor you have to modify it to receive an argument which would be an array and you loading/initialization would then be slightly different as shown below:
$params = array('type' => 'large', 'color' => 'red');
$this->load->library('yourphpclassname', $params);
Then, to access any of the functions within the class simply do that as shown below:
$this->yourphpclassname->some_method();
I hope this answers your question if you have further question do leave a comment and I would do well to respond to them.