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我只是試圖在這兩個類之間傳遞一個NSArray，每當我在它的類B中NSLog的值返回NIL。B類中的NSArray返回NIL？
這是爲什麼，我怎麼才能讓它顯示到這個UITableView？
這裏是類A.H
#import <UIKit/UIKit.h>
#import "Class B.h"
@class Class B;
@interface Class A : UIViewController <UITableViewDataSource, UITableViewDelegate, UICollectionViewDataSource, UICollectionViewDelegate, UIPopoverControllerDelegate> {
IBOutlet UITableView *ToolsTable;
IBOutlet UICollectionView *strategyCollection;
IBOutlet UIButton *countButton;
IBOutlet UIButton *camerButton;
IBOutlet UIButton *videoButton;
IBOutlet UIButton *textButton;
IBOutlet UIButton *probeButton;
IBOutlet STPopOverQuestionViewViewController *questionListController;
IBOutlet UIPopoverController *questionList;
NSMutableDictionary *stratToolsDict;
NSMutableArray *stratTools;
NSMutableArray *stratObjects;
NSMutableDictionary *QuestionDict;
NSMutableArray *QuestionsList;
}
@property (strong, nonatomic) IBOutlet UIView *strategyOBJView;
@property (retain, nonatomic) NSMutableDictionary *stratToolsDict;
@property (retain, nonatomic) NSMutableArray *stratTools;
@property (retain, nonatomic) NSMutableArray *stratObjects;
@property (retain, nonatomic) NSMutableDictionary *QuestionDict;
@property (retain, nonatomic) NSMutableArray *QuestionsList;
- (IBAction)questionListClick:(id)sender;
@end
類時三十分
#import "STQuestionViewViewController.h"
#import "STQuestionCreatorViewController.h"
#import "STPopOverQuestionViewViewController.h"
@interface STQuestionViewViewController() {
NSMutableArray *toolsList;
NSArray *strategyData;
UIViewController *popOverQuestionView;
NSMutableDictionary *stratObjectsDict;
}
@end
@implementation STQuestionViewViewController
@synthesize QuestionDict;
@synthesize stratToolsDict;
@synthesize stratObjects;
@synthesize stratTools;
@synthesize QuestionsList;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
toolsList = [[NSMutableArray alloc] init];
NSDictionary *count = [[NSDictionary alloc] initWithObjectsAndKeys:@"Count", @"title",nil];
NSDictionary *camera = [[NSDictionary alloc] initWithObjectsAndKeys:@"Camera",@"title", nil];
NSDictionary *video = [[NSDictionary alloc] initWithObjectsAndKeys:@"Video",@"title", nil];
NSDictionary *text = [[NSDictionary alloc] initWithObjectsAndKeys:@"Text",@"title", nil];
NSDictionary *probe = [[NSDictionary alloc] initWithObjectsAndKeys:@"Probe",@"title", nil];
[toolsList addObject:count];
[toolsList addObject:camera];
[toolsList addObject:video];
[toolsList addObject:text];
[toolsList addObject:probe];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
//Question Array Setup and Alloc
stratToolsDict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:countButton,@"count",camerButton,@"camera",videoButton,@"video",textButton,@"text",probeButton,@"probe", nil];
stratTools = [[NSMutableArray alloc] initWithObjects:@"Tools",stratToolsDict, nil];
stratObjectsDict = [[NSMutableDictionary alloc]initWithObjectsAndKeys:stratTools,@"Strat1",stratTools,@"Strat2",stratTools,@"Strat3",stratTools,@"Strat4", nil];
stratObjects = [[NSMutableArray alloc]initWithObjects:@"Strategies:",stratObjectsDict,nil];
QuestionDict = [[NSMutableDictionary alloc]initWithObjectsAndKeys:stratObjects,@"Question 1?",stratObjects,@"Question 2?",stratObjects,@"Question 3?",stratObjects,@"Question 4?",stratObjects,@"Question 5?", nil];
//add strategys to questions
QuestionsList = [[NSMutableArray alloc]init];
for (int i = 0; i < 1; i++) {
[QuestionsList addObject:QuestionDict];
}
NSLog(@"Object: %@",QuestionsList);
* 我想傳遞的NSMutableArray QuestionsList;到B類並將其分配給UITableView數據源。隨後將其返回到分配和A類初始化
類了Bh
#import <UIKit/UIKit.h>
#import "Class A.h"
@class Class A;
@interface Class B : UITableViewController<UITableViewDataSource, UITableViewDelegate> {
NSMutableDictionary *Questions;
NSMutableArray *QuestionList;
Class A *arrayQuestions;
}
@property Class A *arrayQuestions;
@end
類家蠶
#import "Class B.h"
#import "Class A.h"
@interface Class B()
@end
@implementation Class B
@synthesize arrayQuestions;
- (id)initWithStyle:(UITableViewStyle)style
{
if ([super initWithStyle:style] != nil) {
//Make array
arrayQuestions = [[STQuestionViewViewController alloc]init];
QuestionList = [arrayQuestions QuestionsList];
//Log test
NSLog(@"QuestionList init method: %@",QuestionList);
NSLog(@"QuestionsDict init method: %@",Questions);
//Make row selections persist.
self.clearsSelectionOnViewWillAppear = NO;
//Calculate how tall the view should be by multiplying
//the individual row height by the total number of rows.
NSInteger rowsCount = [QuestionList count];
NSInteger singleRowHeight = [self.tableView.delegate tableView:self.tableView
heightForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]];
NSInteger totalRowsHeight = rowsCount * singleRowHeight;
//Calculate how wide the view should be by finding how
//wide each string is expected to be
CGFloat largestLabelWidth = 0;
for (NSString *colorName in Questions) {
//Checks size of text using the default font for UITableViewCell's textLabel.
CGSize labelSize = [colorName sizeWithFont:[UIFont boldSystemFontOfSize:20.0f]];
if (labelSize.width > largestLabelWidth) {
largestLabelWidth = labelSize.width;
}
}
//Add a little padding to the width
CGFloat popoverWidth = largestLabelWidth + 100;
//Set the property to tell the popover container how big this view will be.
self.contentSizeForViewInPopover = CGSizeMake(popoverWidth, totalRowsHeight);
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
//Log object
NSLog(@"View did load: %@",QuestionList);
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
//Log test
NSLog(@"QuestionList Sections Method: %@",QuestionList);
NSLog(@"QuestionsDict Sections Method: %@",Questions);
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [QuestionList count];
//Log test
NSLog(@"QuestionList Row Method: %@",QuestionList);
NSLog(@"QuestionsDict Row Method: %@",Questions);
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//Log test
NSLog(@"QuestionList Cell for Row: %@",QuestionList);
NSLog(@"QuestionsDict Cell For Row: %@",Questions);
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
cell.textLabel.text = [QuestionList objectAtIndex:indexPath.row];
return cell;}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *selectedName = [QuestionList objectAtIndex:indexPath.row];
if ([selectedName isEqualToString:@"Question 1?"]){
}
else if ([selectedName isEqualToString:@"Question 2?"]){
}
else if ([selectedName isEqualToString:@"Question 3?"]){
}
else if ([selectedName isEqualToString:@"Question 4?"]){
}
else if ([selectedName isEqualToString:@"Question 5?"]){
}
}
@end
我走過了一個UIPopOverController它自己有幾次，似乎不知道爲什麼它等於無s B當我知道它被分配到A類。 任何幫助非常感謝，我確實發現堆棧溢出類似的問題，但他們似乎並沒有解決我的問題，從來沒有找到一個返回的NIL值。
這是很多的代碼，它有幾個數組。哪一行代碼恰好是你意外得到'nil'的那一行？ –
在A類中，有一個NSMutableArray * QuestionsList，我在其中添加一個NSMutableDictionary。對所有的代碼抱歉，我試圖看看它，並不能解決問題，所以我想打開問題的範圍。 – Keeano