Classes/AssetBrowser/AssetBrowserItem.h
/* |
File: AssetBrowserItem.h |
Abstract: Represents an asset in AssetBrowserController. |
Version: 1.3 |
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*/ |
#import <Foundation/Foundation.h> |
#import <UIKit/UIKit.h> |
#import <CoreMedia/CMTime.h> |
@class AVAsset; |
enum { |
AssetBrowserItemFillModeCrop, |
AssetBrowserItemFillModeAspectFit |
}; |
typedef NSInteger AssetBrowserItemFillMode; |
@interface AssetBrowserItem : NSObject <NSCopying> { |
@private |
NSURL *assetURL; |
UIImage *thumbnailImage; |
NSString *assetTitle; |
BOOL haveRichestTitle; |
AVAsset *asset; |
BOOL audioOnly; |
BOOL canGenerateThumbnails; |
dispatch_queue_t assetQueue; |
} |
- (id)initWithURL:(NSURL*)URL; |
- (id)initWithURL:(NSURL*)URL title:(NSString*)title; // title can be nil. |
/* With AssetBrowserItemFillModeAspectFit size acts as a maximum size. Pass CGRectZero for a full size thumbnail; |
With AssetBrowserItemFillModeCrop the image is cropped to fit size. If the asset does not have enough resolution |
than the returned image have be the aspect ratio specified by size, but lower resolution. |
Retrieve the generated thumbnail with the thumbnailImage property. */ |
- (void)generateThumbnailAsynchronouslyWithSize:(CGSize)size fillMode:(AssetBrowserItemFillMode)mode completionHandler:(void (^)(UIImage *thumbnail))handler; |
- (UIImage*)placeHolderImage; |
- (void)generateTitleFromMetadataAsynchronouslyWithCompletionHandler:(void (^)(NSString *title))handler; |
@property (nonatomic, readonly) NSURL *URL; |
@property (nonatomic, readonly, copy) NSString *title; |
@property (nonatomic, readonly) BOOL haveRichestTitle; |
@property (nonatomic, readonly, strong) UIImage *thumbnailImage; |
@property (weak, nonatomic, readonly) AVAsset *asset; |
- (void)clearThumbnailCache; |
- (void)clearAssetCache; |
@end |
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