我在从可变字典中读出可变数组时遇到问题。我想把它读出来,然后把它放到标签上。以下是我的数据组织方式。我有一个可变的字典数组。然后在我的tableview中,我将索引路径中的对象设置为等于应用委托中的字典。然后在详细信息视图中,我加载了从数组中取出的字典,然后从中读取并将值放入标签中。我在字典中的所有字符串都有效,但是数组不会读出来,你可以帮我吗
RootViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
SurveyAppAppDelegate *surveyAppAppDelegate = (SurveyAppAppDelegate*)[[UIApplication sharedApplication] delegate];
SurveyViewer *surveyViewController = [[SurveyViewer alloc] initWithNibName:@"SurveyViewer" bundle:nil];
surveyAppAppDelegate.arrayCount = [[self surveyArray] objectAtIndex:indexPath.row];
[self.navigationController pushViewController:surveyViewController animated:YES];
[surveyViewController release];
}
在我的App Delegate中,它被设置为NSDictionary。
然后在我的详细视图控制器中执行此操作
injuredArray = [surveyAppAppDelegate.arrayCount objectForKey:@"Injured Part"];
if ([injuredArray count] >= 1) {
for (int i = 0; i<=([injuredArray count]-1); i++) {
myLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 105+shift, 139, 15)];
myLabel.text = [injuredArray objectAtIndex:i];
myLabel.backgroundColor = [UIColor clearColor];
myLabel.font = [UIFont fontWithName:@"Helvetica" size: 14.0];
myLabel.textColor = [UIColor blackColor];
myLabel.textAlignment = UITextAlignmentLeft;
[self.theScroller addSubview:myLabel];
shift = shift+20;
}
}
在我的App Delegate中,我像这样设置了arrayCount
·H
#import <UIKit/UIKit.h>
@class RootViewController;
@interface SurveyAppAppDelegate : NSObject <UIApplicationDelegate> {
NSDictionary *arrayCount;
}
@property (nonatomic, assign) NSDictionary *arrayCount;
@end
和.m
#import "SurveyAppAppDelegate.h"
@implementation SurveyAppAppDelegate
@synthesize arrayCount;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
arrayCount = [[NSDictionary alloc] init];
然后在app委托的dealloc中我释放它
哦,我设置为hurtArray的NSMutableArray中的对象都是字符串
编辑:所以我在设置它之后在根视图控制器中添加了一个循环到NSLog数组,它不能正常工作。所以它找出了一些原因,它没有正确保存在arrayCount中
感谢您的帮助
答案 0 :(得分:0)
您可以考虑在详细视图控制器中创建一个init方法,该方法接受您感兴趣的NSDictionary并将其保留在属性中。我不知道这个参考来自哪里:surveyAppAppDelegate.arrayCount
答案 1 :(得分:0)
在你的appDelegate标题中,尝试保留字典而不是分配:
@property (nonatomic, retain) NSDictionary *arrayCount;
然后在实施中:
NSDictionary *anArrayCount = [[NSDictionary alloc] init];
self.arrayCount = anArrayCount;
[anArrayCount release];
您指定的damagedArray对象是否已分配并初始化?那可能是问题......