Ios 将数据从UITableViewController推送到UIViewController

在将数据从我的

UITableView

推送到我的

UIViewController

上的5个标签时，我遇到了一个相当大的问题。我有一个应用程序，你可以按“爬升”，根据你选择的爬升，当你被推到

UIViewController

时，会显示不同的规格。现在它只是进入了一个空白屏幕，我把我的标签连接到我的课堂上，所有这些都只是不确定如何让tit将不同的信息传输到每个标签上，这取决于选择的攀登。我现在将发布我的代码：

FourthTableViewController.h

：

#import <UIKit/UIKit.h>

@interface FourthTableViewController : UITableViewController

@property (nonatomic, strong) NSString *sectionName;

@property (nonatomic, strong) NSMutableArray *objects;
@property (nonatomic, strong) NSMutableArray *results;

@property (nonatomic, strong) IBOutlet UISearchBar *searchBar;

@end

#import "FourthTableViewController.h"
#import "DetailViewController.h"


- (void)viewDidLoad
{
[super viewDidLoad];

UIBarButtonItem *NewBackButton = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStyleBordered target:nil action:nil];
[[self navigationItem] setBackBarButtonItem:NewBackButton];

self.tableView.separatorColor = [UIColor colorWithRed:183/255.0 green:207/255.0 blue:85/255.0 alpha:0.5];

//populating arrays
NSDictionary *dict = @{/*Moss Rock Sections*/@"Grass Man":@[@"Tesseract", @"Chalky Dreams", 
@"Aristocratic Nose", @"Bee Stings", @"Recovery Run Traverse", @"Heel Shock", @"Fourth of July", 
@"No Sack", @"Poop Dreams", @"Hoop Dreams", @"Grass Man Traverse", @"Mikey Likes It", @"Just 
Throw", @"Rapture", @"Caveman Hunt", @"Batman Dyno", @"Waiting Line", @"Petrified Lady 
(project)", @"Up and Over", @"Rocker", @"Heart", @"Left Ventricle", @"Poison Ivey", @"Snake 
Eyes", @"Rattle", @"Shape Shifter", @"Road to Nowhere", @"Beef It", @"Switchback", @"Pine 
Phriend", @"Hanging Out", @"Warp Hole", @"Deet", @"Mosquito Bites"], @"Lost Roof": @[@"I'll 
Tumble for Ya", @"Snoopy's House", @"Treelee", @"Lost Roof Problem"], @"Ozzy":@[@"Clark Direct", 
@"Long Shot", @"Pile", @"Revolver", @"The Bomb", @"Suntoucher", @"A Young One", 
@"Nebuchadnezzar's Dream", @"Profanity", @"Godfather", @"Re-Ignition", @"Rancid", @"Tree 
Problem", @"Scrutinzier", @"Little Big Horn", @"Cheese is Good", @"Maybe Later", @"Double 
Clutch", @"A.X Variation", @"Salute", @"Ozzy Crack", @"Adam's Slab", @"Orange Streak", @"Tommy 
H", @"Vast Understatement", @"Super Crimp", @"Big Ben", @"Fat Cut", @"It Burns!", @"The Trip", 
@"Tesseract"]/*End Moss Rock Sections*/, @"Colorado Section 1":@[@"Colorado Climb 1", @"Colorado 
Climb 2", @"Colorado Climb 3"]};

climbs = dict[self.sectionName];

[self.objects addObjectsFromArray:climbs];
}

#import <UIKit/UIKit.h>

@interface DetailViewController : UIViewController

@property (strong, nonatomic) NSString *detailLabelContents;
@property (weak, nonatomic) IBOutlet UILabel *detailLabel;

@property (weak, nonatomic) IBOutlet UILabel *titleLabel;
@property (weak, nonatomic) IBOutlet UILabel *gradeLabel;
@property (weak, nonatomic) IBOutlet UILabel *coordinatesLabel;
@property (weak, nonatomic) IBOutlet UILabel *rockLabel;
@property (weak, nonatomic) IBOutlet UILabel *difficultyLabel;


@property (nonatomic, strong) NSString *climbName;

@end

- (void)viewDidLoad
{
[super viewDidLoad];

UIBarButtonItem *NewBackButton = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStyleBordered target:nil action:nil];
[[self navigationItem] setBackBarButtonItem:NewBackButton];

//populating arrays
NSDictionary *dict = @{@"Alabama Climb 1":@[@"Alabama Spec 1", @"Alabama Spec 2", @"Alabama Spec 
3"], @"Georgia Climb 1": @[@"Georgia Spec 1", @"Georgia Spec 2", @"Georgia Spec 3"], @"Tennessee 
Climb 1":@[@"Tennessee Spec 1", @"Tennessee Spec 2", @"Tennessee Spec 3"], @"Colorado Climb 
1":@[@"Colorado Spec 1", @"Colorado Spec 2", @"Colorado Spec 3"]};

specs = dict[self.climbName];

self.detailLabel.text = self.detailLabelContents;
}

详细视图控制器.h

：

#import <UIKit/UIKit.h>

@interface FourthTableViewController : UITableViewController

@property (nonatomic, strong) NSString *sectionName;

@property (nonatomic, strong) NSMutableArray *objects;
@property (nonatomic, strong) NSMutableArray *results;

@property (nonatomic, strong) IBOutlet UISearchBar *searchBar;

@end

#import "FourthTableViewController.h"
#import "DetailViewController.h"


- (void)viewDidLoad
{
[super viewDidLoad];

UIBarButtonItem *NewBackButton = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStyleBordered target:nil action:nil];
[[self navigationItem] setBackBarButtonItem:NewBackButton];

self.tableView.separatorColor = [UIColor colorWithRed:183/255.0 green:207/255.0 blue:85/255.0 alpha:0.5];

//populating arrays
NSDictionary *dict = @{/*Moss Rock Sections*/@"Grass Man":@[@"Tesseract", @"Chalky Dreams", 
@"Aristocratic Nose", @"Bee Stings", @"Recovery Run Traverse", @"Heel Shock", @"Fourth of July", 
@"No Sack", @"Poop Dreams", @"Hoop Dreams", @"Grass Man Traverse", @"Mikey Likes It", @"Just 
Throw", @"Rapture", @"Caveman Hunt", @"Batman Dyno", @"Waiting Line", @"Petrified Lady 
(project)", @"Up and Over", @"Rocker", @"Heart", @"Left Ventricle", @"Poison Ivey", @"Snake 
Eyes", @"Rattle", @"Shape Shifter", @"Road to Nowhere", @"Beef It", @"Switchback", @"Pine 
Phriend", @"Hanging Out", @"Warp Hole", @"Deet", @"Mosquito Bites"], @"Lost Roof": @[@"I'll 
Tumble for Ya", @"Snoopy's House", @"Treelee", @"Lost Roof Problem"], @"Ozzy":@[@"Clark Direct", 
@"Long Shot", @"Pile", @"Revolver", @"The Bomb", @"Suntoucher", @"A Young One", 
@"Nebuchadnezzar's Dream", @"Profanity", @"Godfather", @"Re-Ignition", @"Rancid", @"Tree 
Problem", @"Scrutinzier", @"Little Big Horn", @"Cheese is Good", @"Maybe Later", @"Double 
Clutch", @"A.X Variation", @"Salute", @"Ozzy Crack", @"Adam's Slab", @"Orange Streak", @"Tommy 
H", @"Vast Understatement", @"Super Crimp", @"Big Ben", @"Fat Cut", @"It Burns!", @"The Trip", 
@"Tesseract"]/*End Moss Rock Sections*/, @"Colorado Section 1":@[@"Colorado Climb 1", @"Colorado 
Climb 2", @"Colorado Climb 3"]};

climbs = dict[self.sectionName];

[self.objects addObjectsFromArray:climbs];
}

#import <UIKit/UIKit.h>

@interface DetailViewController : UIViewController

@property (strong, nonatomic) NSString *detailLabelContents;
@property (weak, nonatomic) IBOutlet UILabel *detailLabel;

@property (weak, nonatomic) IBOutlet UILabel *titleLabel;
@property (weak, nonatomic) IBOutlet UILabel *gradeLabel;
@property (weak, nonatomic) IBOutlet UILabel *coordinatesLabel;
@property (weak, nonatomic) IBOutlet UILabel *rockLabel;
@property (weak, nonatomic) IBOutlet UILabel *difficultyLabel;


@property (nonatomic, strong) NSString *climbName;

@end

- (void)viewDidLoad
{
[super viewDidLoad];

UIBarButtonItem *NewBackButton = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStyleBordered target:nil action:nil];
[[self navigationItem] setBackBarButtonItem:NewBackButton];

//populating arrays
NSDictionary *dict = @{@"Alabama Climb 1":@[@"Alabama Spec 1", @"Alabama Spec 2", @"Alabama Spec 
3"], @"Georgia Climb 1": @[@"Georgia Spec 1", @"Georgia Spec 2", @"Georgia Spec 3"], @"Tennessee 
Climb 1":@[@"Tennessee Spec 1", @"Tennessee Spec 2", @"Tennessee Spec 3"], @"Colorado Climb 
1":@[@"Colorado Spec 1", @"Colorado Spec 2", @"Colorado Spec 3"]};

specs = dict[self.climbName];

self.detailLabel.text = self.detailLabelContents;
}

总之，我想知道当选择攀爬时，攀爬规格显示在推送到的

UIViewController

上的5个标签中，当选择另一个攀爬时，攀爬规格显示。（我认为这将是一个巨大的if/else声明）

任何建议或建设性的批评都将不胜感激，我知道我的语法并不完美，我对这门语言非常陌生

---

谢谢。

要设置标签文本，您必须将

NSString

传递给下一个

视图控制器

，然后在

视图加载

中进行设置

因此，创建5个与标签对应的属性，并像使用

grampname

NSString

（在

prepareforsgue

方法中）一样传递数据

要设置标签文本，请在目标视图控制器的

视图加载中执行此操作

self.titleLabel.text = self.myStringThatIPassed;

你是否在任何地方设置标签文本？我没有，这是我的问题，我不确定如何实现我的目标以及在何处实现目标？对，那么我是否会在DVC的“viewDidLoad”中做一个巨大的if-else语句，说明当选择此爬升时，将标签设置为此文本？对不起，我只是不能理解这个概念，你能给我看一个例子和我提供的代码吗？然后我可以看着它，更好地理解和想象它。一次攀爬如何将5个标签设置为特定的文本不是真的，你决定在你的PrepareForegue中传递什么数据或字符串。当然，给我一点时间。你能告诉我你从哪里得到标题、难度等等吗？