WTTargetCollectionResource Class Reference

Inherits from	NSObject
Declared in	WTTargetCollectionResource.h

Overview

Target Collection Resources can either retrieve image targets from a .wtc file or object targets from a .wmc file. The file can be loaded eitherfrom the application bundle or a remote server. If the file was loaded from a server, no internet connection is required anymore after the loading finished successfully.

`URL`

Specifies the URL that will be used to locate and load the file.

@property (nonatomic, copy, readonly) NSURL *URL

Discussion

Specifies the URL that will be used to locate and load the file.

Declared In

WTTargetCollectionResource.h

`loading`

Specifies if the target collection resource is currently loading the file, or if it already finished (successfully or not)

@property (nonatomic, assign, readonly) BOOL loading

Discussion

Specifies if the target collection resource is currently loading the file, or if it already finished (successfully or not)

Declared In

WTTargetCollectionResource.h

`– load:`

Use this method to start the actual loading process of the resource.

- (void)load:(WTTargetCollectionResourceCompletionHandler)completionHandler

Parameters

`completionHandler`	A completion handler that is called in case the resource is available or failed loading.

Discussion

This method either loads a local resource or starts a network connection to a server to download the resource, specified by URL.

The loading process happens on a background thread

Declared In

WTTargetCollectionResource.h

`– cancel`

Causes the target collection resource to cancel any ongoing loading operation.

- (void)cancel

Discussion

Cancel should only be called when the target collection resource is actively loading a file. Callind cancel after the loading operation finished has no effect.

Declared In

WTTargetCollectionResource.h