Question

在我的董事会结束时，我想将级别，董事会积分和总积分保存到一个NSUserDefaults中，然后召回并打破这些数字。这可能吗？只是尝试不每次都有一个NSUserDefaults列表。

示例：

int level = 35
int boardPoints = 500
int totalPoints = 18000

我想保存一个＆＃34; levelValue＆＃34;所有三个，也许有一个句点分隔符？ levelValue = 35.500.18000;

// Save value
[[NSUserDefaults standardUserDefaults] setObject:levelValue forKey:@"levelValueKey"];
[[NSUserDefaults standardUserDefaults] synchronize];

// Recall
// Somehow recall Left(levelValueKey,2), Mid(starting from period,2), and right(up to period)
level = [[NSUserDefaults standardUserDefaults] objectForKey:@"levelValueKey"];
boardPoints = [[NSUserDefaults standardUserDefaults] objectForKey:@"levelValueKey"];
totalPoints = [[NSUserDefaults standardUserDefaults] objectForKey:@"levelValueKey"];

有什么想法吗？

Answer 1

将所有内容保存为NSUserDefaults中的NSArray，如下所示：

//your ints
int level = 35;
int boardPoints = 500;
int totalPoints = 18000;

//put ints in array
NSArray *levelValueArray = [NSArray arrayWithObjects:[NSNumber numberWithInt:level], [NSNumber numberWithInt:boardPoints], [NSNumber numberWithInt:totalPoints], nil]
//save in NSUserDefaults
[[NSUserDefaults standardUserDefaults] setObject:levelValueArray forKey:@"levelValueKey"];

//retreive
NSArray *arrayLevelValues = [[NSUserDefaults standardUserDefaults] objectForKey:@"levelValueKey"];

使用它们：

NSLog(@"arrayLevelValues: %@", arrayLevelValues[1]);
//the object 1 is a string so you'll need to convert it to int using intValue
int tempPoints = [arrayLevelValues[1] intValue];
NSLog(@"tempPoints: %d",tempPoints);

如何使用一个NSUserDefaults保存多个号码？

1 个答案: