在我的应用程序中,我正在读取 NSMutableArray 并将其写入 NSUserDefaults。该数组包含如下所示的对象:
头文件:
#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
@interface WorkLocationModel : NSObject
@property (nonatomic, strong) CLRegion *geoLocation;
@end
实现文件:
#import "WorkLocationModel.h"
@implementation WorkLocationModel
-(id)init {
// Init self
self = [super init];
if (self)
{
// Setup
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)coder {
[coder encodeObject:self.geoLocation forKey:@"geoLocation"];
}
-(void)initWithCoder:(NSCoder *)coder {
self.geoLocation = [coder decodeObjectForKey:@"geoLocation"];
}
@end
这就是我阅读清单的方式:
这是在我加载数组的 ViewController 中,当它应该是 WorkLocationModel 对象时,oldArray 似乎记录了 NSKeyedUnarchiver 类型的 1 个项目(正确数量):
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *workLocationsData = [defaults objectForKey:@"workLocations"];
if (workLocationsData != nil)
{
NSArray *oldArray = [NSKeyedUnarchiver unarchiveObjectWithData:workLocationsData];
if (oldArray != nil)
{
_workLocations = [[NSMutableArray alloc] initWithArray:oldArray];
NSLog(@"Not nil, count: %lu", (unsigned long)_workLocations.count);
} else
{
_workLocations = [[NSMutableArray alloc] init];
}
} else
{
_workLocations = [[NSMutableArray alloc] init];
}
这就是我将 WorkLocationModel 对象添加到我的数组的方式:
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
// Create a sample work location
WorkLocationModel *newModel = [[WorkLocationModel alloc] init];
newModel.geoLocation = currentRegion;
[_workLocations addObject:newModel];
// Save the new objects
[defaults setObject:[NSKeyedArchiver archivedDataWithRootObject:_workLocations] forKey:@"workLocations"];
// Synchronize the defaults
[defaults synchronize];
错误发生在此处的 if 语句中(进一步深入到我的 ViewController),我正在比较两个 CLRegions。
region是一个函数参数。
for (WorkLocationModel *currentWorkLocationModel in _workLocations)
{
if ([region isEqual:currentWorkLocationModel.geoLocation])
{
// Found a match
}
}
我已经浏览了代码,但我不明白为什么会这样,异常消息:
-[NSKeyedUnarchiver geoLocation]: unrecognized selector sent to instance 0x174108430
2015-01-12 18:23:20.085 myApp[1322:224462] *** Terminating app due to
uncaught exception 'NSInvalidArgumentException', reason: '-[NSKeyedUnarchiver geoLocation]:
unrecognized selector sent to instance
有人可以帮我弄这个吗?我迷路了