以编程方式从iPhoto Library中读取

Question

我想创建一个连接到iPhoto Library的应用程序.所以现在我想从图书馆阅读事件和图片.

有没有一种优雅/简单的方法来做到这一点,还是我必须手动阅读iPhoto用户数据的捆绑结构？

到目前为止,我只找到了一个图片获取者:Mac桌面是否有UIImagePicker

更新:我找到了另一个相关的SO帖子:在可可应用程序中选择iPhoto图像

Answer 1

您可以使用NSAppleScript执行此操作.这是我的应用程序的一些复制/粘贴,只是为了显示这个想法而被黑了.

    NSAppleEventDescriptor d = .. compile this script ..
        @"tell application \"iPhoto\" to properties of albums"

    for (int i = 0; i < [d numberOfItems]; i++)
    {
        NSAppleEventDescriptor *albumDesc = [d descriptorAtIndex:i];

        // <NSAppleEventDescriptor: 'ipal'{ 
        //  'ID  ':4.265e+09, 
        //  'purl':'utxt'("http://www.flickr.com/photos/..."), 
        //  'pnam':'utxt'("Vacation"), 
        //  'alTy':'pubs', 
        //  'alCh':[  ], 
        //  'alPx':'msng' }>

        NSString *albumName = [[albumDesc descriptorForKeyword:'pnam'] stringValue];
        NSString *albumId = [[albumDesc descriptorForKeyword:'ID  '] stringValue];

你可以做同样的事情来找到图像

NSString *scp = 
    [NSString stringWithFormat:@"tell application \"iPhoto\" to properties of photos of album id %@",
     [album objectForKey:@"id"]];

NSAppleEventDescriptor *d = ... compile scp ...

// 1 based!?
for (int i = 1; i <= [d numberOfItems]; i++)
{
    NSAppleEventDescriptor *photoDesc = [d descriptorAtIndex:i];

    // Yes.. this happens.  Not sure why?!
    if (!photoDesc)
        continue;

    // <NSAppleEventDescriptor: 'ipmr'{ 
    // 'pnam':'utxt'("IMG_0058.JPG"), 
    // 'pwid':768, 
    // 'pdim':[ 768, 1024 ], 
    // 'alti':1.79769e+308, 
    // 'filn':'utxt'("3133889525_10975ba071_b.jpg"), 
    // 'ipth':'utxt'("/Users/lagnat/Pictures/iPhoto Library/Masters/2010/11/10/20101110-002341/3133889525_10975ba071_b.jpg"), 
    // 'idat':'ldt '($F57C69C500000000$), 
    // 'rate':0, 
    // 'titl':'utxt'("IMG_0058.JPG"), 
    // 'phit':1024, 
    // 'itpt':'utxt'("/Users/lagnat/Pictures/iPhoto Library/Thumbnails/2010/11/10/20101110-002341/3133889525_10975ba071_b.jpg.jpg"), 
    // 'ID  ':4.295e+09, 
    // 'lati':'msng', 
    // 'pcom':'utxt'(""), 
    // 'opth':'utxt'("/Users/lagnat/Pictures/iPhoto Library/Masters/2010/11/10/20101110-002341/3133889525_10975ba071_b.jpg"), 
    // 'lngt':'msng', 
    // 'tiln':'utxt'("3133889525_10975ba071_b.jpg.jpg") }>

    NSString *path = [[photoDesc descriptorForKeyword:'ipth'] stringValue];
    NSString *imgname = [[photoDesc descriptorForKeyword:'pnam'] stringValue];