Ios 无法在NSUserDefaults中存储NSMutableArray（数组的每个实例都包含一个自定义对象）

这是一个自定义类：

#import <Foundation/Foundation.h>

@interface timeTable : NSObject
@property (nonatomic) int ID;
@property (nonatomic) NSString * type;
@property (nonatomic) NSString * time;
@property (nonatomic) NSString * busno;
@property (nonatomic) NSString * stops;


// nothing is done in it's .m file not even synthesise

// thats an other class 
#import <Foundation/Foundation.h>
#import "timeTable.h"

@interface refreshDatabase : NSObject

@property (strong, nonatomic) NSMutableArray * arrayTimeTable;
@property (strong, nonatomic) timeTable * objectTimeTable;

// in it's .m file i am downloading a JSON formatted array using a         
service then i am saving it to NsMutbaleArray

// downloading a json array which contains a rows of data

NSError * error;
NSArray * jsonArray = [NSJSONSerialization JSONObjectWithData:      

[safeString dataUsingEncoding:NSUTF8StringEncoding]  

options:NSJSONReadingAllowFragments error:&error];

NSLog(@"json Array %@", jsonArray);

// for getting an instance of array

NSDictionary * jsonElement;

for (int i=0; i<jsonArray.count ; i++)
{ // each row will be saved in an object of timetable class then that  
  // object will be saved to nsmutablearray

jsonElement = [jsonArray objectAtIndex:i];
objectTimeTable = [[timeTable alloc]init];

objectTimeTable.ID = [[jsonElement objectForKey:@"id"]intValue];

objectTimeTable.type = [jsonElement objectForKey:@"type"];
objectTimeTable.time = [jsonElement objectForKey:@"time"];
objectTimeTable.busno = [jsonElement objectForKey:@"busno"];
objectTimeTable.stops = [jsonElement objectForKey:@"stops"];



// adding an instance from JSON Array to our  NSmutablearray
[arrayTimeTable addObject:objectTimeTable];

}//end of json Array FOR loop

  // our array containnig all the objects will be saved using 
  //NSUserDefualts

 // userDefaults is an object of NSUserDefaults

  if(userDefaults)
    { // its not saving it to userdefaults
    [userDefaults setObject:arrayToStore forKey:@"ArrayOfTimeTables"];
     [userDefaults synchronize];

}
 // retrieving the saved array from NSUSerDefaults and printing it
 // using slog

 timeTable *objPrint = [[timeTable alloc]init];

 NSMutableArray *arrayLoader = [userDefaults  arrayForKey:@"ArrayOfTimeTables"];

 for (int i=0; i<arrayLoader.count ; i++)
  {
   objPrint = [arrayLoader objectAtIndex:i];
   NSLog(@"outSide Printing For LOOP After Loading of tim # %d times havind id =%d  type = %@ time = %@ busno = %@  stops = %@",i,objPrint.ID,objPrint.type,objPrint.time,objPrint.busno,objPrint.stops);
  }

#导入
@接口时间表：NSObject
@属性（非原子）int-ID；
@属性（非原子）NSString*类型；
@属性（非原子）NSString*时间；
@属性（非原子）NSString*busno；
@属性（非原子）NSString*停止；
//它的.m文件中没有任何操作，甚至没有合成
//那是另一门课
#进口
#导入“timeline.h”
@接口刷新数据库：NSObject
@属性（强，非原子）NSMutableArray*ArrayMetable；
@属性（强，非原子）时间表*对象时间表；
//在它的.m文件中，我使用
服务，然后我将其保存到NSM阵列
//下载包含一行数据的json数组
n错误*错误；
NSArray*jsonArray=[NSJSONSerialization JSONObjectWithData:
[安全字符串数据使用编码：NSUTF8StringEncoding]
选项：NSJSONReadingAllowFragments错误：&错误]；
NSLog（@“json数组%@”，jsonArray）；
//用于获取数组的实例
NSDictionary*jsonement；
对于（int i=0；i使用NScoding对每个自定义对象进行编码，然后将该自定义对象添加到数组中，然后对其他对象进行编码，然后将其添加到数组中，然后将该数组保存到NSUserDefaults中

上界问题的编码与解码
是

自定义class.h文件

#import <Foundation/Foundation.h>

@interface timeTable : NSObject<NSCoding>

@property (nonatomic) NSString * ID;
@property (nonatomic) NSString * type;
@property (nonatomic) NSString * time;
@property (nonatomic) NSString * busno;
@property (nonatomic) NSString * stops;

-（void）编码器与编码器：（NSCoder*）一个编码器
{
[aCoder encodeObject:self.ID forKey:@“ID”]；
[aCoder encodeObject:self.type forKey:@“type”]；
[aCoder-encodeObject:self.time-forKey:@“time”]；
[A编码对象：self.busno-forKey:@“busno”]；
[aCoder-encodeObject:self.stops-forKey:@“stops”]

将每个自定义对象逐个编码并将其添加到数组中，然后保存NSMutableArray或NSArray
陷入违约状态

对自定义对象进行编码，然后将其添加到数组中，并将其保存到用户默认值中

 // encoding a custom object before saving it to array
 NSData *encodeTimeTableObj = [NSKeyedArchiver
    archivedDataWithRootObject:objectTimeTable];

 addObject:encodeTimeTableObj];
//saving it to user Defaults
 if(userDefaults)
 {
  [userDefaults setObject:arrayTimeTable
         forKey:@"ArrayOfTimeTables"];
         [userDefaults synchronize];
         NSLog(@"saving to usedefaults");
 }

检索可变或不可变数组，然后对其每个对象进行解码

  NSMutableArray *arrayLoader = [userDefaults
       objectForKey:@"ArrayOfTimeTables"];
  NSData * decode = [arrayLoader objectAtIndex:0];

//如果是上给定的自定义类时间表
timeline*objPrint=[NSKeyedUnarchiver unarchiveObjectWithData:decode]；
使用NSArray从NSUSerDefaults获取数组，因为NSUSerDefaults返回不可变数组。
如果需要NSMutableArray，请将此NSArray转换为NSMutableArray

//从NSUSerDefaults检索保存的数组并打印它
//用功

时间表*objPrint=[[timeline alloc]init]

NSArray*arrayLoader=[userDefaults ArrayWorkey:@“ArrayOfTimeTables]”

为了（int i=0；i您的自定义对象必须符合
NSCodingProtocol
检查这个答案：如果我只是将时间表类对象存储到NSUserDEFAULTS中，那么这个答案是好的，但是我首先将时间表对象存储到NSMutableArray中，然后将该数组保存到NSUserDEFAULTS中，顺便说一句，您的自定义对象所拥有的时间遵守NSCODING协议。
 // encoding a custom object before saving it to array
 NSData *encodeTimeTableObj = [NSKeyedArchiver
    archivedDataWithRootObject:objectTimeTable];

 addObject:encodeTimeTableObj];
//saving it to user Defaults
 if(userDefaults)
 {
  [userDefaults setObject:arrayTimeTable
         forKey:@"ArrayOfTimeTables"];
         [userDefaults synchronize];
         NSLog(@"saving to usedefaults");
 }

  NSMutableArray *arrayLoader = [userDefaults
       objectForKey:@"ArrayOfTimeTables"];
  NSData * decode = [arrayLoader objectAtIndex:0];