如何将 NSMutableDictionary 从一个 viewController 传递到另一个视图控制器？

Question

firstviewcontroller.m

@property (nonatomic) NSMutableDictionary *json;

.h
@synthesis json;

    viewdidload()

    {
        nslog(@"%@",json);
    }

secondviewcontroller.h

firstviewcontroller *FVC = [[firstviewcontroller alloc]init];

FVC.json = @"My NSMutableDictionary"

这是我的代码，在 firstviewcontrol NSMutableDictionary 中值为 null。如何解决？

Answer 1

写入您的 "secondViewConroller.h" 文件

@property (nonatomic, Strong) NSMutableDictionary *json;

并像 "firtstViewConroller.m"

那样传递它

NSMutableDictionary *temJSONDic = ....

secondViewConroller *FVC = [[secondViewConroller alloc] initWithNibName:@"secondViewConroller" bundle:nil];
FVC.json = temJSONDic;
[self.navigationController pushViewController:FVC animated:YES];

Answer 2

使用下面的代码使用 [NSBundle mainBundle] 方法加载您的 xib 文件，返回数组中的第一个对象是您的控制器。然后分配你的字典对象，然后使用 navigationcontroller.

推送

    NSArray * array = [[NSBundle mainBundle] loadNibNamed:@"<your xib file name without .xib extension>" owner:self options:nil];
secondViewConroller *cntrl = [array objectAtIndex:0];
cntrl.json = <your dictionary data>;
[self.navigationController pushViewController:cntrl animated:YES];

如何将 NSMutableDictionary 从一个 viewController 传递到另一个视图控制器？

How to pass NSMutableDictionary from one viewController to another View controller?

objective-c

nsmutabledictionary

ios