편집

다음을 통해 공유


NSUrl Constructors

Definition

Overloads

NSUrl(NSCoder)

A constructor that initializes the object from the data stored in the unarchiver object.

NSUrl(NSObjectFlag)

Constructor to call on derived classes to skip initialization and merely allocate the object.

NSUrl(IntPtr)

A constructor used when creating managed representations of unmanaged objects; Called by the runtime.

NSUrl(String)
NSUrl(String, NSUrl)
NSUrl(String, Boolean)

Creates a file NSUrl with the specified path.

NSUrl(String, String)
NSUrl(IntPtr, Boolean, NSUrl)
NSUrl(String, Boolean, NSUrl)
NSUrl(String, String, String)
NSUrl(NSData, NSUrlBookmarkResolutionOptions, NSUrl, Boolean, NSError)

NSUrl(NSCoder)

A constructor that initializes the object from the data stored in the unarchiver object.

[Foundation.Export("initWithCoder:")]
[ObjCRuntime.DesignatedInitializer]
public NSUrl (Foundation.NSCoder coder);
new Foundation.NSUrl : Foundation.NSCoder -> Foundation.NSUrl

Parameters

coder
NSCoder

The unarchiver object.

Attributes

Remarks

This constructor is provided to allow the class to be initialized from an unarchiver (for example, during NIB deserialization). This is part of the NSCoding protocol.

If developers want to create a subclass of this object and continue to support deserialization from an archive, they should implement a constructor with an identical signature: taking a single parameter of type NSCoder and decorate it with the [Export("initWithCoder:"] attribute declaration.

The state of this object can also be serialized by using the companion method, EncodeTo.

Applies to

NSUrl(NSObjectFlag)

Constructor to call on derived classes to skip initialization and merely allocate the object.

protected NSUrl (Foundation.NSObjectFlag t);
new Foundation.NSUrl : Foundation.NSObjectFlag -> Foundation.NSUrl

Parameters

t
NSObjectFlag

Unused sentinel value, pass NSObjectFlag.Empty.

Remarks

This constructor should be called by derived classes when they completely construct the object in managed code and merely want the runtime to allocate and initialize the NSObject. This is required to implement the two-step initialization process that Objective-C uses, the first step is to perform the object allocation, the second step is to initialize the object. When developers invoke the constructor that takes the NSObjectFlag.Empty they take advantage of a direct path that goes all the way up to NSObject to merely allocate the object's memory and bind the Objective-C and C# objects together. The actual initialization of the object is up to the developer.

This constructor is typically used by the binding generator to allocate the object, but prevent the actual initialization to take place. Once the allocation has taken place, the constructor has to initialize the object. With constructors generated by the binding generator this means that it manually invokes one of the "init" methods to initialize the object.

It is the developer's responsibility to completely initialize the object if they chain up using the NSObjectFlag.Empty path.

In general, if the developer's constructor invokes the NSObjectFlag.Empty base implementation, then it should be calling an Objective-C init method. If this is not the case, developers should instead chain to the proper constructor in their class.

The argument value is ignored and merely ensures that the only code that is executed is the construction phase is the basic NSObject allocation and runtime type registration. Typically the chaining would look like this:

//
// The NSObjectFlag merely allocates the object and registers the
// C# class with the Objective-C runtime if necessary, but no actual
// initXxx method is invoked, that is done later in the constructor
//
// This is taken from Xamarin.iOS's source code:
//
[Export ("initWithFrame:")]
public UIView (System.Drawing.RectangleF frame) : base (NSObjectFlag.Empty)
{
// Invoke the init method now.
	var initWithFrame = new Selector ("initWithFrame:").Handle;
	if (IsDirectBinding)
		Handle = ObjCRuntime.Messaging.IntPtr_objc_msgSend_CGRect (this.Handle, initWithFrame, frame);
	else
		Handle = ObjCRuntime.Messaging.IntPtr_objc_msgSendSuper_CGRect (this.SuperHandle, initWithFrame, frame);
}

Applies to

NSUrl(IntPtr)

A constructor used when creating managed representations of unmanaged objects; Called by the runtime.

protected internal NSUrl (IntPtr handle);
new Foundation.NSUrl : nativeint -> Foundation.NSUrl

Parameters

handle
IntPtr

nativeint

Pointer (handle) to the unmanaged object.

Remarks

This constructor is invoked by the runtime infrastructure (GetNSObject(IntPtr)) to create a new managed representation for a pointer to an unmanaged Objective-C object. Developers should not invoke this method directly, instead they should call the GetNSObject method as it will prevent two instances of a managed object to point to the same native object.

Applies to

NSUrl(String)

[Foundation.Export("initWithString:")]
public NSUrl (string urlString);
new Foundation.NSUrl : string -> Foundation.NSUrl

Parameters

urlString
String

String representing the url.

Attributes

Applies to

NSUrl(String, NSUrl)

[Foundation.Export("initWithString:relativeToURL:")]
[ObjCRuntime.DesignatedInitializer]
public NSUrl (string urlString, Foundation.NSUrl relativeToUrl);
new Foundation.NSUrl : string * Foundation.NSUrl -> Foundation.NSUrl

Parameters

urlString
String

String representing the url.

relativeToUrl
NSUrl
Attributes

Applies to

NSUrl(String, Boolean)

Creates a file NSUrl with the specified path.

[Foundation.Export("initFileURLWithPath:isDirectory:")]
[ObjCRuntime.DesignatedInitializer]
public NSUrl (string path, bool isDir);
new Foundation.NSUrl : string * bool -> Foundation.NSUrl

Parameters

path
String
isDir
Boolean
Attributes

Remarks

Developers should ensure that the is a value that is valid for initializing an NSUrl. If not, this method will throw an exception.

Applies to

NSUrl(String, String)

public NSUrl (string path, string relativeToUrl);
new Foundation.NSUrl : string * string -> Foundation.NSUrl

Parameters

path
String
relativeToUrl
String

Applies to

NSUrl(IntPtr, Boolean, NSUrl)

[Foundation.Export("initFileURLWithFileSystemRepresentation:isDirectory:relativeToURL:")]
[ObjCRuntime.DesignatedInitializer]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 7, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 9, ObjCRuntime.PlatformArchitecture.All, null)]
public NSUrl (IntPtr ptrUtf8path, bool isDir, Foundation.NSUrl baseURL);
new Foundation.NSUrl : nativeint * bool * Foundation.NSUrl -> Foundation.NSUrl

Parameters

ptrUtf8path
IntPtr

nativeint

isDir
Boolean
baseURL
NSUrl
Attributes

Applies to

NSUrl(String, Boolean, NSUrl)

[Foundation.Export("initFileURLWithPath:isDirectory:relativeToURL:")]
[ObjCRuntime.DesignatedInitializer]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 9, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 11, ObjCRuntime.PlatformArchitecture.All, null)]
public NSUrl (string path, bool isDir, Foundation.NSUrl relativeToUrl);
new Foundation.NSUrl : string * bool * Foundation.NSUrl -> Foundation.NSUrl

Parameters

path
String
isDir
Boolean
relativeToUrl
NSUrl

To be added.

This parameter can be null.

Attributes

Applies to

NSUrl(String, String, String)

[Foundation.Export("initWithScheme:host:path:")]
[ObjCRuntime.Deprecated(ObjCRuntime.PlatformName.iOS, 9, 0, ObjCRuntime.PlatformArchitecture.None, "Use 'NSUrlComponents' instead.")]
[ObjCRuntime.Deprecated(ObjCRuntime.PlatformName.WatchOS, 2, 0, ObjCRuntime.PlatformArchitecture.None, "Use 'NSUrlComponents' instead.")]
[ObjCRuntime.Deprecated(ObjCRuntime.PlatformName.TvOS, 9, 0, ObjCRuntime.PlatformArchitecture.None, "Use 'NSUrlComponents' instead.")]
[ObjCRuntime.Deprecated(ObjCRuntime.PlatformName.MacOSX, 10, 11, ObjCRuntime.PlatformArchitecture.None, "Use 'NSUrlComponents' instead.")]
public NSUrl (string scheme, string host, string path);
[Foundation.Export("initWithScheme:host:path:")]
public NSUrl (string scheme, string host, string path);
new Foundation.NSUrl : string * string * string -> Foundation.NSUrl

Parameters

scheme
String
host
String
path
String
Attributes

Applies to

NSUrl(NSData, NSUrlBookmarkResolutionOptions, NSUrl, Boolean, NSError)

[Foundation.Export("initByResolvingBookmarkData:options:relativeToURL:bookmarkDataIsStale:error:")]
public NSUrl (Foundation.NSData bookmarkData, Foundation.NSUrlBookmarkResolutionOptions resolutionOptions, Foundation.NSUrl relativeUrl, out bool bookmarkIsStale, out Foundation.NSError error);
new Foundation.NSUrl : Foundation.NSData * Foundation.NSUrlBookmarkResolutionOptions * Foundation.NSUrl *  *  -> Foundation.NSUrl

Parameters

bookmarkData
NSData
resolutionOptions
NSUrlBookmarkResolutionOptions
relativeUrl
NSUrl

Relative url.

This parameter can be null.

bookmarkIsStale
Boolean
error
NSError
Attributes

Applies to