osx 代码创建自定义NSMenu & NSMenuItem

最新推荐文章于 2023-04-25 05:51:59 发布

原创最新推荐文章于 2023-04-25 05:51:59 发布 · 3k 阅读

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本文介绍如何使用Objective-C创建自定义菜单项，并为这些菜单项分配快捷键，包括返回首页、刷新和退出等操作。

//
    unichar arrowKey = 'r';
    NSString *refresh = [NSString stringWithCharacters:&arrowKey length:1];

    //
    //    NSString *homePage = [NSString stringWithFormat:@"^%c",arrowKey1];
    unichar arrowKey2 = 'o';
    NSString *homePage = [NSString stringWithCharacters:&arrowKey2 length:1];

    
    //
    unichar arrowKey3 = 27;
    NSString *esc = [NSString stringWithCharacters:&arrowKey3 length:1];

    
    
    NSMenuItem *item= [NSApp.mainMenu insertItemWithTitle:@"111" action:nil keyEquivalent:@"" atIndex:1];
    NSMenu *submenu=[[NSMenu alloc] initWithTitle:@"ww"];
    item.submenu=submenu;
    [submenu addItemWithTitle:@"1" action:@selector(dd) keyEquivalent:homePage];//返回首页
    [submenu addItemWithTitle:@"2" action:@selector(dd) keyEquivalent:refresh];//刷新
    [submenu addItemWithTitle:@"3" action:@selector(dd) keyEquivalent:esc];//exit