如何限制我的应用程序显示在特定文档类型的iOS“打开于...”菜单中

Question

我需要限制我的应用程序才能显示ppt文件类型。如何执行此操作？

Answer 1

You can use this. This will get the 'kind' of file.

- (NSString *)humanReadableFileType:(NSString *)path
{
    NSString *kind = nil;
    NSURL *url = [NSURL fileURLWithPath:[path stringByExpandingTildeInPath]];
    LSCopyKindStringForURL((CFURLRef)url, (CFStringRef *)&kind);
    return kind ? [kind autorelease] : @"";
}

After that check it like that

if([kind isEqualToString:@"ppt"])
{

}

Source: http://importantshock.wordpress.com/2007/01/07/cocoa-snippet-finding-a-files-kind/#post-19