我有一个NSMutableArray,我想在另一个视图中使用它的数据。我读了,发现我们可以使用indexOfObject读取数据,但我的NSMutableArray有多个值,我不知道如何从NSMutableArray获得特定的字段。从NSMutableArray检索对象
任何帮助将不胜感激。
我目前被困在我的IBAction onStartPressed。在线
self.clueHint.text = ds[0].initialClue;
//or
self.clueHint.text = ds objectAtIndex:0 initialClue;
我显示了我涉及的其他文件和代码。
ClueData.h #进口
@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
ClueDataDAO.h
#import <Foundation/Foundation.h>
#import "ClueData.h"
@interface ClueDataDAO : NSObject
@property(strong, nonatomic) NSMutableArray * clueDataArray;
-(NSMutableArray *) PopulateDataSource;
@end
ClueDataDAO.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
GamePageViewController.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];
}
在IBAction为,第一铸造/保存到正确的变种
你是什么意思“我的数组有多个字段”?那么,这就是为什么它被称为一个数组而不是一个原始类型......此外,**使用空格。** @property(强,非原子)NSMutableArray * clueDataArray;'只是彻底伤害。同样,这个问题**与Xcode没有任何关系。** – 2012-10-14 11:32:14
我认为他的意思是:每个对象都有多个项目,所以NSDict的基础知识或(自定义)类作为数组的项目。 –
对不起..我是一个noob ...仍然是新的... –