Question

NSMutableArray *mutableArray = [NSMutableArray array];
Prostate *prostate = [Prostate new];
prostate.prostateCheckTimeString = self.prostateCheckTime.text;
prostate.prostateCubeString =self.prostateCube.text;
prostate.prostateAntigemString =self.prostateAntigem.text;
prostate.peeSpeedMaximumString =self.peeSpeedMaximum.text;
prostate.peeRemenderString =self.peeRemender.text;
[mutableArray addObject:prostate];
NSArray *tempArray = [[NSArray alloc]initWithArray:self.mutableArray];


[Global saveArrayToUserDefault:prostateArray saveValue:tempArray];
NSArray *array = [Global getArrayFromUserDefault:prostateArray];

//以下是我的全球对象

**+(void)saveArrayToUserDefault:(NSString *)userDefaultKey saveValue:(NSArray *)value**
{
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:value forKey:prostateArray];
[userDefaults synchronize];
}

**+(NSArray *)getArrayFromUserDefault:(NSString *)userDefaultKey**
{
NSArray *temp;
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
temp = [userDefaults objectForKey:userDefaultKey];
return temp;
}

-----------------------------------说明-------- -------------------------------

我已经搜索了一段时间，我知道NSUserDefault只能存储NSArray，我试图将NSMutableArray转换为NSArray，但仍然有错误

-----------------------------------错误-------- -------------------------------------

属性列表格式无效：200（属性列表不能包含'CFType'类型的对象）尝试设置非属性列表对象（ “”

Answer 1

在您要保存的实体类中实现<NSCoding>协议

-(void)writeArrayWithCustomObjToUserDefaults:(NSString *)keyName withArray:(NSMutableArray *)myArray {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:myArray];
    [defaults setObject:data forKey:keyName];
    [defaults synchronize]; }

-(NSArray *)readArrayWithCustomObjFromUserDefaults:(NSString*)keyName {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *data = [defaults objectForKey:keyName];
    NSArray *myArray = [NSKeyedUnarchiver unarchiveObjectWithData:data];
    [defaults synchronize];
    return myArray;  }

Answer 2

Prostate是您的自定义对象，NSUserDefaults不允许您保存它。因此，在保存到NSUserDefaults之前必须Archive，并在从NSUserDefaults回读时取消归档。

因此，保存和读取用户默认数据的方法应如下所示：

-(void)writeArrayWithCustomObjToUserDefaults:(NSString *)keyName withArray:(NSMutableArray *)myArray {
     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
     NSData *data = [NSKeyedArchiver archivedDataWithRootObject:myArray];
     [defaults setObject:data forKey:keyName];
     [defaults synchronize]; 
}

-(NSArray *)readArrayWithCustomObjFromUserDefaults:(NSString*)keyName {
     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
     NSData *data = [defaults objectForKey:keyName];
     NSArray *myArray = [NSKeyedUnarchiver unarchiveObjectWithData:data];
     return myArray;  
}

尝试设置非属性列表对象

2 个答案: