iphone - 将int保存到内部存储器xcode iphone dev

Question

我有一个int名为的值score，我想将其保存到手机的内存中，这样即使游戏关闭并重新打开，这也是永远不会删除的高分，

有人可以建议一种方法来实现吗？

Answer 1

使用NSUserDefaults.

保存：

int score = 12345;
[[NSUserDefaults standardUserDefaults] setObject:[NSNumber numberWithInt:score] forKey:@"HIGHSCORE"];

装载：

int score = [[[NSUserDefaults standardUserDefaults] objectForKey:@"HIGHSCORE"] integerValue];

Answer 2

您应该阅读 Apple 文档NSUserDefaults

参见NSUserDefaults和Preferences and Settings 编程指南

[[NSUserDefaults standardUserDefaults] setInteger: score forKey: @"Score"]

Answer 3

在我看来，保存最佳分数的简单方法是将分数保存为字符串值，并在需要时将其召回。

//this example assume that high score is in text    
NSString *SaveHighScore = HighScore.text;
    NSUserDefaults *defaultsHighScore = [NSUserDefaults standardUserDefaults];
    [defaultsHighScore setObject:SaveHighScore forKey:@"savedHighScore"];
    [defaultsHighScore synchronize];

并回忆

 NSUserDefaults *defaultsHighScore = [NSUserDefaults standardUserDefaults];
NSString *loadHighScore = [defaultsHighScore objectForKey:@"savedHighScore"];
[HighScore setText :loadHighScore];