我有一个 NSMutableArray,我想在另一个视图中使用它的数据。查了一下发现我们可以使用indexOfObject来读取数据,但是我的NSMutableArray有多个值,我不知道如何从NSMutableArray中获取特定的字段。
任何帮助将不胜感激。
我目前被困在我的 IBAction onStartPressed 上。在线
self.clueHint.text = ds[0].initialClue;
//or
self.clueHint.text = ds objectAtIndex:0 initialClue;
我展示了我的其他文件和涉及的代码。
线索数据.h #import
@interface ClueData : NSObject
@property(nonatomic, strong) NSString * clueName;
@property(nonatomic, strong) NSString * initialClue;
@property(nonatomic, strong) NSString * clueHint1;
@property(nonatomic, strong) NSString * clueHint2;
@property(nonatomic, strong) NSString * clueAnswer;
@property(nonatomic, strong) UIImage * clueImage;
@end
线索数据DAO.h
#import <Foundation/Foundation.h>
#import "ClueData.h"
@interface ClueDataDAO : NSObject
@property(strong, nonatomic) NSMutableArray * clueDataArray;
-(NSMutableArray *) PopulateDataSource;
@end
线索数据DAO.m
#import "ClueDataDAO.h"
@implementation ClueDataDAO
@synthesize clueDataArray;
-(NSMutableArray *) PopulateDataSource
{
clueDataArray = [[NSMutableArray alloc]init];
ClueData * sampleData = [[ClueData alloc]init];
sampleData.clueName = @"Tropical Fruit Tree";
sampleData.initialClue = @"Where all the Tropical trees are planted.";
sampleData.clueHint1 = @"It is located at Area 10";
sampleData.clueHint2 = @"It could be found near Eco Lake";
sampleData.clueAnswer = @"Fruit tree collection";
NSString * file=[[NSBundle mainBundle]pathForResource:@"FruitTreeCollection" ofType:@"jpg"];
sampleData.clueImage = [UIImage imageWithContentsOfFile:file];
[clueDataArray addObject:sampleData];
sampleData=nil;
return clueDataArray;
}
@end
游戏页面视图控制器.M
- (void)viewDidLoad
{
[super viewDidLoad];
daoDS = [[ClueDataDAO alloc]init];
self.ds = daoDS.PopulateDataSource; //load pre-build NSMutableArray
self.answer.delegate = self;
// Do any additional setup after loading the view.
}
- (IBAction)onStartPressed:(id)sender {
//initiate load object
// stuck at here :(
ClueData * currentClue = [ds objectAtIndex:0]; // app got terminate at this line of code
self.clueHint.text = [currentClue initialClue];
}