我正在尝试使用NsKeyedArchiever
保存包含型号、品牌、年份、颜色、vin 的汽车详细信息。代码如下:
void CarData()
{
Car *myCar = [[Car alloc] init];
myCar.model = [carTempArray objectAtIndex:0];//Temporary array contains value
myCar.make = [carTempArray objectAtIndex:1];
myCar.color = [carTempArray objectAtIndex:2];
myCar.year = [carTempArray objectAtIndex:3];
myCar.vin = [NSNumber numberWithInt:check];
NSString *docspath = [NSHomeDirectory() stringByAppendingPathComponent:@"documents"];
BOOL saved =[NSKeyedArchiver archiveRootObject: myCar toFile:docspath];
NSLog(@"did save state %d",saved);
[myCar release];
[NSKeyedArchiver release];
}
之后使用NSkeyedUnarcheiver
如下:
void ShowData()
{
NSString *docspath = [NSHomeDirectory() stringByAppendingPathComponent:@"documents"];
Car * retrieveCar = [NSKeyedUnarchiver unarchiveObjectWithFile:docspath];
// for(int i=0 ; i<studentList.count;i++)
{
// Car * retrieveCar =[studentList objectAtIndex:0];
NSString * first = retrieveCar.model;
NSString * first1 = retrieveCar.make;
NSString * first2 = retrieveCar.color;
NSString * first3 = retrieveCar.year;
NSLog(@"%@",first );
NSLog(@"%@",first1 );
NSLog(@"%@",first2 );
NSLog(@"%@",first3 );
}
但这只取一个值并使用一个值。我想将NSKeyedArchiever
对象保存在一个数组中,以便多辆汽车可以使用相同的代码成为它的一部分。并且加载与上面相同。请纠正问题。我想运行多辆汽车的代码,我能够在汽车阵列中执行以下任务,例如搜索汽车、删除汽车记录和添加汽车。