加载Adobe Illustrator（.ai）文件

Question

是否可以加载.ai文件并以编程方式打开它们？

这就是我的尝试：

- (IBAction)openDocument:(id)sender
{
    QLPreviewController *previewController = [[QLPreviewController alloc] init];
    [previewController setDataSource:self];
    [previewController setDelegate:self];
    [self presentModalViewController:previewController animated:YES];
}

- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller
{
    return 1;
}

- (id <QLPreviewItem>)previewController:(QLPreviewController *)controller previewItemAtIndex:(NSInteger)index
{
    return [[NSBundle mainBundle] URLForResource:@"CNW EXPLODED1" withExtension:@"ai"];
}

但输出是这样的：

Answer 1

有一种方法可以做到这一点。这就是将ai的扩展名改为pdf并加载，如下所示，

- (IBAction)openDocument:(id)sender
{
    QLPreviewController *previewController = [[QLPreviewController alloc] init];
    [previewController setDataSource:self];
    [previewController setDelegate:self];
    [self presentModalViewController:previewController animated:YES];
}
- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller
{
    return 1;
}
- (id <QLPreviewItem>)previewController:(QLPreviewController *)controller previewItemAtIndex:(NSInteger)index
{
    return [[NSBundle mainBundle] URLForResource:@"CNW EXPLODED1" withExtension:@"pdf"];
}

输出：

这是完美的工作..但我不想改变EXTENSION。任何人都可以帮助我。

**

更新的答案：

- (IBAction)openDocument:(id)sender
{
    UIButton *button = (UIButton *)sender;
    NSURL *URL = [[NSBundle mainBundle] URLForResource:@"CNW EXPLODED1" withExtension:@"ai"];

    if (URL) {
        // Initialize Document Interaction Controller
        self.documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:URL];

        // Configure Document Interaction Controller
        [self.documentInteractionController setDelegate:self];

        // Present Open In Menu
        [self.documentInteractionController presentOpenInMenuFromRect:[button frame] inView:self.view animated:YES];
    }
}


- (UIViewController *) documentInteractionControllerViewControllerForPreview: (UIDocumentInteractionController *) controller {
    return self;
}

显示菜单选项，但选项为BUMP。它仅适用于设备

**

Answer 2

如果将Illustrator文件保存为.eps文件，则可以提取矢量详细信息并将其重新用作CAShapeLayer上的路径，但它对于复杂形状并不简单。

这些链接应该有所帮助：

http://jeffmenter.wordpress.com/2011/04/17/method-for-interpreting-illustrator-art-assets-as-cocoa-cgpathref/

http://rdsquared.wordpress.com/2012/01/10/svg-to-coregraphics-conversion/

肯定在Github上搜索SVGKit。

希望有所帮助。向下来的人们致敬。