在基于非文档的应用程序可可中的“另存为”

Question

我正在研究一个基本上通过shell脚本创建文件的项目，使用“sox”。该应用程序不是基于文档的，其所有正在调用创建文件的脚本，并且不会在内部保存任何数据。但是，我需要提示用户在运行脚本之前要使用哪个文件名使用的文件名。有一个“另存为...”对话框的最佳方法是从用户获取文件的文件属/文件名传递给shell脚本？

Answer 1

This is pretty straightforward. You tagged this question with NSSavePanel and that's exactly what you want to use.

- (IBAction)showSavePanel:(id)sender
{
    NSSavePanel * savePanel = [NSSavePanel savePanel];
    // Restrict the file type to whatever you like
    [savePanel setAllowedFileTypes:@[@"txt"]];
    // Set the starting directory
    [savePanel setDirectoryURL:someURL];
    // Perform other setup
    // Use a completion handler -- this is a block which takes one argument
    // which corresponds to the button that was clicked
    [savePanel beginSheetModalForWindow:someWindow completionHandler:^(NSInteger result){
        if (result == NSFileHandlingPanelOKButton) {
            // Close panel before handling errors
            [savePanel orderOut:self];
            // Do what you need to do with the selected path
        }
    }];
}

See also "The Save Panel" in the File System Programming Guide.