ios 如何将整数保存到 NSUserDefaults？
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原文地址: http://stackoverflow.com/questions/1482097/
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How do you save an integer to NSUserDefaults?
提问by iKenndac
Does anyone know how I would go about saving my high score integer to NSUserDefaults so I can load it later?
有谁知道我将如何将我的高分整数保存到 NSUserDefaults 以便我稍后加载它？
回答by iKenndac
[[NSUserDefaults standardUserDefaults] setInteger:HighScore forKey:@"HighScore"];
… to get it back:
… 取回它：
NSInteger highScore = [[NSUserDefaults standardUserDefaults] integerForKey:@"HighScore"];
This is explained very simply in the documentation.
文档中对此进行了非常简单的解释。
回答by Alex Reynolds
More generally, you can save Foundation class objects to the user defaults, e.g.:
更一般地，您可以将 Foundation 类对象保存为用户默认值，例如：
[[NSUserDefaults standardUserDefaults] setObject:[NSNumber numberWithInt:highScore] forKey:@"kHighScore"];
and
和
NSInteger highScore = [[[NSUserDefaults standardUserDefaults] objectForKey:@"kHighScore"] intValue];
But the convenience method is there for taking in an NSIntegerdirectly.
但是有一个方便的方法是NSInteger直接接收。
I prefer to use the more agnostic -setObject:and -objectForKey:because it more cleanly separates the object type from access to the dictionary.
我更喜欢使用更不可知的-setObject:，-objectForKey:因为它更清晰地将对象类型与对字典的访问分开。
