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？

这是我尝试过的：

- (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"];
}

但是输出是这样的：

​

​

Answer 1

有一种方法可以做到这一点。将ai的扩展名更改为pdf并加载该文件，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：

​

​

这工作得很好..但我不想更改扩展名。有人能帮我更多的忙吗？

**

更新答案：

- (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;
}

这是通过菜单选项显示的，但带有选项凹凸。它只能在device中工作

**

Answer 2

如果您将Illustrator文件另存为.eps文件，则可以提取矢量细节并将其重新用作CAShapeLayer上的路径，但对于复杂形状来说，这并不简单。

这些链接应该会有所帮助：

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/

一定要在Github上搜索SVGKit。

希望这能有所帮助。光荣属于反对者。