objective-c - 应用选择 - Cocoa

Question

我想显示一个对话框，允许用户浏览他们当前的应用程序 (/Applications)，我需要获取该应用程序的完整路径(已选择)。我该怎么做？感谢代码示例。

谢谢。

Answer 1

这样的事情将是一个好的开始:

NSArray *appsDirs = NSSearchPathForDirectoriesInDomains(NSApplicationDirectory, 
                       NSLocalDomainMask,  YES);
NSString *appsDir = nil;
if ([appsDirs count]) appsDir = [appsDirs objectAtIndex:0];

NSOpenPanel *openPanel = [NSOpenPanel openPanel];
[openPanel setTitle:NSLocalizedString(@"Add Application", @"")];
[openPanel setMessage:NSLocalizedString(@"Choose the application to add.", @"")];
[openPanel setPrompt:NSLocalizedString(@"Add Application", @"")];
[openPanel setAllowsMultipleSelection:YES]; // ?
[openPanel setCanChooseDirectories:NO];
[openPanel setDelegate:self];

NSInteger result = [openPanel runModalForDirectory:appsDir
                                              file:nil
                                             types:
                    [NSArray arrayWithObject:NSFileTypeForHFSTypeCode('APPL')]];

if (result == NSOKButton) {
    NSArray *fileURLs = [openPanel URLs];
    for (NSURL *URL in fileURLs) {
         NSString *path = [URL path];
         // add path, etc.
    }
}