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我被编译器标记为具有未声明的标识符，并且想知道解决此问题的最佳方法是什么？

这是我第一次使用 plist 来存储数据，所以我不确定最好的方法是什么。谢谢你。

已注释掉错误消息：

目的地.h

#import "Destination.h"

@implementation Destination

@synthesize coordinate = _coordinate;
@synthesize title = _title;
@synthesize subtitle = _subtitle;
@synthesize destinationName = _destinationName;
@synthesize destinationImage = _destinationImage;

-(id)initWithDestinationIndex:(NSUInteger)destinationIndex {
  if (self = [super init]) {
    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Destinations" ofType:@"plist"];
    NSDictionary *destinations = [NSDictionary dictionaryWithContentsOfFile:filePath];
    NSArray *destinationsArray = [destinations objectForKey:@"DestinationData"];
    NSDictionary *data = [destinationsArray objectAtIndex:destinationIndex];

    self.destinationImage = [UIImage imageNamed:[data objectForKey:@"DestinationImage"]];
    self.destinationName = [data objectForKey:@"DestinationName"];
    NSDictionary* destinationLocation = [data objectForKey:@"DestinationLocation"];
    destinationCoordinate.latitude = [[destinationLocation objectForKey:@"Latitude"]doubleValue];// Use of undeclared identifier 'destinationCoordinate'
    destinationCoordinate.longitude = [[destinationLocation objectForKey:@"Longitude"]doubleValue];// Use of undeclared identifier 'destinationCoordinate'
    self.coordinate = destinationCoordinate;//Use of undeclared identifier 'destinationCoordinate'
    self.title = [destinationLocation objectForKey:@"Title"];
    self.subtitle = [destinationLocation objectForKey:@"Subtitle"];
  }
  return self;
}

-(UIImage *)destinationImage {
  return destination.destinationImage;//Use of undeclared identifier 'destination'; did you mean 'Destination'?
}

-(NSString *)destinationName {
  return  destinationName;//Use of undeclared identifer 'destinationName'; did you mean '_destinationName'?
}

-(CLLocationCoordinate2D)destinationCoordinate {
  return destination.coordinate;//Use of undeclared 'destination'; did you mean 'Destination'
}

@end

目的地.h

#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>

@interface Destination : NSObject<MKAnnotation>

@property(nonatomic,readwrite)CLLocationCoordinate2D coordinate;
@property(nonatomic,readwrite,copy)NSString *title;
@property(nonatomic,readwrite,copy)NSString *subtitle;
@property(nonatomic,strong)NSString *destinationName;
@property(nonatomic,strong)UIImage *destinationImage;
-(id)initWithDestinationIndex:(NSUInteger)destinationIndex;

@end
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1 回答 1

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完全删除该destinationImage方法。您已经合成了它，它应该可以正常工作。

于 2012-04-19T15:47:56.370 回答