Objective-C 将 NSColor 保存在 NSUserDefaults 中

发布于 2024-10-18 05:19:51 字数 638 浏览 4 评论 0原文

如何保存点的颜色，以便当应用程序打开和关闭时，点是用户上次设置的颜色？

有人可以向我解释如何使用 NSUserDefaults 以及在哪些方法中声明 NSUserDefaults 吗？

到目前为止，我有这个：

NSData *data = [NSArchiver archivedDataWithRootObject:color];
[[NSUserDefaults standardUserDefaults] setObject:data forKey:@"MyColor"];

NSData *data = [[NSUserDefaults standardUserDefaults] objectForKey:@"MyColor"];
NSColor *color = [NSUnarchiver unarchiveObjectWithData:data];

我遵循的教程链接： http://www.mactech.com/articles/mactech /Vol.25/25.04/2504RoadtoCode/index.html

原文

How do you save the color of the dot so that when the app is opened and closed the dot is the color it was last set to by the user?

Could someone explain to me how to use NSUserDefaults and in which methods to declare NSUserDefaults.

So far i have this:

NSData *data = [NSArchiver archivedDataWithRootObject:color];
[[NSUserDefaults standardUserDefaults] setObject:data forKey:@"MyColor"];

NSData *data = [[NSUserDefaults standardUserDefaults] objectForKey:@"MyColor"];
NSColor *color = [NSUnarchiver unarchiveObjectWithData:data];

Link for tutorial I followed:
http://www.mactech.com/articles/mactech/Vol.25/25.04/2504RoadtoCode/index.html

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

墨离汐 2024-10-25 05:19:51

这就是我使用的：

- (NSColor *)colorForKey:(NSString *)key
{
    NSData  *data;
    NSColor *color;

    data = [[NSUserDefaults standardUserDefaults] objectForKey:key];
    color= [NSUnarchiver unarchiveObjectWithData:data];
    if( ! [color isKindOfClass:[NSColor class]] )
    {
        color = nil;
    }

    return color;
    }

- (void)setColor:(NSColor *)color forKey:(NSString *)key
{
    NSData *data = [NSArchiver archivedDataWithRootObject:color];
    [[NSUserDefaults standardUserDefaults] setObject:data forKey:key];

    [BFChatWindow refresh];
}

This is what I use:

- (NSColor *)colorForKey:(NSString *)key
{
    NSData  *data;
    NSColor *color;

    data = [[NSUserDefaults standardUserDefaults] objectForKey:key];
    color= [NSUnarchiver unarchiveObjectWithData:data];
    if( ! [color isKindOfClass:[NSColor class]] )
    {
        color = nil;
    }

    return color;
    }

- (void)setColor:(NSColor *)color forKey:(NSString *)key
{
    NSData *data = [NSArchiver archivedDataWithRootObject:color];
    [[NSUserDefaults standardUserDefaults] setObject:data forKey:key];

    [BFChatWindow refresh];
}

回复收藏 0 原文

~没有更多了~