ALAsset 的用法（时间、url 、图片的获取）

来源：互联网发布：js array pushall 编辑：程序博客网时间：2024/06/06 05:39

    ALAsset *asset = 对象;    //获取时间    NSDate* pictureDate = [asset valueForProperty:ALAssetPropertyDate];    NSDateFormatter * formatter = [[NSDateFormatter alloc]init];    formatter.dateFormat = @"yyyy:MM:dd HH:mm:ss";    formatter.timeZone = [NSTimeZone localTimeZone];//要换成本地的时区，才能获得正确的时间    NSString * pictureTime = [formatter stringFromDate:pictureDate];    //获取url：    NSURL *imageUrl = [[asset defaultRepresentation]url];    //获取缩略图：    CGImageRef  thumbnailRef = [asset thumbnail];    UIImage *thumbnailImg = [[UIImage alloc]initWithCGImage:thumbnailRef];    //获取全屏相片：    CGImageRef fullScreenRef = [[asset  defaultRepresentation]fullScreenImage];    UIImage *fullScreenImg = [[UIImage alloc]initWithCGImage:fullScreenRef];    //获取高清相片：    CGImageRef origionRef = [[asset  defaultRepresentation]fullResolutionImage];    UIImage *origionImg = [[UIImage alloc]initWithCGImage:origionRef];

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