NSDataAsset Class
Definition
Important
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Platform-specific data object stored in an asset catalog.
[Foundation.Register("NSDataAsset", true)]
public class NSDataAsset : Foundation.NSObject, Foundation.INSCopying, IDisposable[<Foundation.Register("NSDataAsset", true)>]
type NSDataAsset = class
inherit NSObject
interface INSCopying
interface INativeObject
interface IDisposable- Inheritance
- Attributes
- Implements
Remarks
Asset catalogs are often used for icons and images, but may be used to deliver any kind of data in a platform-specific manner.
Within an asset catalog, there is one folder per data object. That folder contains platform-specific data files and a Contents.json file that maps platform characteristics to specific datafiles. For example:
Where Contents.json contains:
{
"info" : {
"version" : 1,
"author" : "xcode"
},
"data" : [
{
"idiom" : "iphone",
"filename" : "iphone.wav",
"universal-type-identifier" : "com.microsoft.waveform-audio"
},
{
"idiom" : "ipad",
"filename" : "ipad.wav",
"universal-type-identifier" : "com.microsoft.waveform-audio"
}
]
}
To load an asset, call NSDataAsset(String) or NSDataAsset(String, NSBundle) passing the name of the folder. For instance:
var assetCatalog = new NSDataAsset ("FolderName");
var data = assetCatalog.Data;
var uti = assetCatalog.TypeIdentifier;
NSError error = null;
var player = new AVAudioPlayer (data, uti, out error);
if (player != null) { //...etc
The appropriate datafile for the hardware device will be loaded.
Constructors
| Name | Description |
|---|---|
| NSDataAsset(NativeHandle) |
A constructor used when creating managed representations of unmanaged objects. Called by the runtime. |
| NSDataAsset(NSObjectFlag) |
Constructor to call on derived classes to skip initialization and merely allocate the object. |
| NSDataAsset(String, NSBundle) |
Returns the data specified in the |
| NSDataAsset(String) |
Returns the data specified in the |
Properties
| Name | Description |
|---|---|
| Class | (Inherited from NSObject) |
| ClassHandle |
The Objective-C class handle for this class. |
| Data | |
| DebugDescription | (Inherited from NSObject) |
| Description | (Inherited from NSObject) |
| ExposedBindings | (Inherited from NSObject) |
| Handle |
Handle (pointer) to the unmanaged object representation. (Inherited from NSObject) |
| IsDirectBinding | (Inherited from NSObject) |
| IsProxy | (Inherited from NSObject) |
| Name | |
| RetainCount | (Inherited from NSObject) |
| Self | (Inherited from NSObject) |
| Superclass | (Inherited from NSObject) |
| SuperHandle |
Handle used to represent the methods in the base class for this NSObject. (Inherited from NSObject) |
| TypeIdentifier |
The UTI of the Data. |
| Zone | (Inherited from NSObject) |