如何將NSMutableArray數據從UIViewController傳遞到TableView子視圖

Question

我試圖用通過修改NSMutableArray創建的數據填充子視圖表。基本上，一個人回答10個問題，我想用正確的答案圖像顯示子視圖，並標記對號圖像以確定用戶是否正確或不正確。我在tableview中創建了一個自定義單元格，並將它們鏈接到一個表格單元格視圖控制器（resultCellView）。

#import <UIKit/UIKit.h> 

@interface resultsViewCell : UITableViewCell 


@property (strong, nonatomic) IBOutlet UIImageView *resultsFlag; 
@property (weak, nonatomic) IBOutlet UILabel *resultsName; 
@property (weak, nonatomic) IBOutlet UIImageView *resultsIcon; 


@end 

子視圖是這個視圖控制器GamePlayViewController.h

#import <UIKit/UIKit.h> 
#import "resultsViewCell.h" 

@interface GamePlayViewController : UIViewController { 

NSMutableArray *questionsArray; 
NSMutableArray *answersArray; 
NSInteger gameSelected; 
NSMutableArray *revealArray; 
NSTimer *questionTimer; 
BOOL GameInProgress; 

int random; 
int questionTimerCounter; 
int loopCounter; 
int runningScore; 

} 

@property (weak, nonatomic) IBOutlet UILabel *resultsLabel; 
@property (weak, nonatomic) IBOutlet UITableView *resultsTable; 
@property (weak, nonatomic) IBOutlet UIView *resultsView; 

@end 

遊戲循環在這個視圖控制器GamePlayViewController.m文件運行的一部分，然後調用該函數動畫效果：

- (void)gameLoop { 

if (loopCounter < 10){ 
    revealArray = [[NSMutableArray alloc] initWithObjects:@"1", @"2", @"3", @"4", @"5", @"6", @"7", @"8", nil]; 
    cover1.alpha = 1.0; 
    cover2.alpha = 1.0; 
    cover3.alpha = 1.0; 
    cover4.alpha = 1.0; 
    cover5.alpha = 1.0; 
    cover6.alpha = 1.0; 
    cover7.alpha = 1.0; 
    cover8.alpha = 1.0; 
    coreView.alpha = 1.0; 

NSDictionary *question = [[NSDictionary alloc]init]; 

question = [questionsArray objectAtIndex:loopCounter]; 

questionImage.image = [UIImage imageNamed:[question objectForKey:@"imageNames"]]; 
[self getAnswers]; 
} 
else { 
    //NSLog(@"finished"); 
    [self animateResults]; 
} 

} 

的動畫結果函數填充最終分數，但我不確定如何繼續填充表格。

-(void) animateResults { 

_resultsLabel.text = [NSString stringWithFormat:@"You Scored %d", runningScore ]; 

[UIView animateWithDuration:0.3 animations:^{ 
    _resultsView.frame = self.view.frame; 


} completion:^(BOOL finished){ 


    NSLog(@"%@", questionsArray); 

}]; 


} 

我的NSLog通過此方法創建的questionsArray：

- (void) answerMethod:(int)answerBtn { 
if (answerBtn == random) { 
    //NSLog(@"correct!"); 
    int maxScore = 10000; 
    int userScore = maxScore - (questionTimerCounter*1000); 
    NSLog(@"%d", userScore); 
    runningScore = runningScore + userScore; 
    NSLog(@"%d" , runningScore); 

    NSMutableDictionary *question = [[NSMutableDictionary alloc]init]; 
    question = [[questionsArray objectAtIndex:loopCounter]mutableCopy]; 
    [question setObject:[NSNumber numberWithBool:YES] forKey:@"correct"]; 
    [question setObject:[NSNumber numberWithInt:userScore] forKey:@"score"]; 
    [questionsArray replaceObjectAtIndex:loopCounter withObject:question]; 


} 
else { 
    // NSLog(@"incorrect"); 

    NSMutableDictionary *question = [[NSMutableDictionary alloc]init]; 
    question = [[questionsArray objectAtIndex:loopCounter]mutableCopy]; 
    [question setObject:[NSNumber numberWithBool:NO] forKey:@"correct"]; 
    [question setObject:[NSNumber numberWithInt:0] forKey:@"score"]; 
    [questionsArray replaceObjectAtIndex:loopCounter withObject:question]; 
} 


GameInProgress = NO; 

loopCounter++; 
[self revealAnswer]; 

} 

修改後的questionsArray被創建，但就像我說的，我不知道該如何從這一點出發。我已經嘗試將此代碼添加到GamePlayViewController.m文件中：

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 
//Return number of sections 
    return 1; 

} 

//get number of rows by counting number of challenges 
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection: (NSInteger)section { 
    return questionsArray.count; 
} 

//setup cells in tableView 
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 
//setup cell 
static NSString *CellIdentifier = @"resultsListCell"; 
resultsViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 

NSDictionary *results = [questionsArray objectAtIndex:indexPath.row]; 

NSString *resultsName = [results objectForKey:@"answers"]; 

BOOL correct = [[results objectForKey:@"correct"] boolValue]; 

if (!correct) { 
    cell.resultsIcon.image = [UIImage imageNamed:@"BlackIconLock.png"]; 
} 

else{ 
    cell.resultsIcon.image = nil; 
} 

cell.resultsName.text = resultsName; 

return cell; 
} 

但是，此代碼沒有任何顯示。我仍然在學習我已經設法達到這一點。我已經能夠正確地運行十個問題，但現在我正在努力完成這個最後的部分，說實話，我被困在了愚蠢的地方。只是一直沒能弄清楚。任何幫助將不勝感激。

Answer 1

如果您修改NSMutableArray，請在成功修改後調用[tableView reloadData]。希望這會有所幫助。 :)

Answer 2

您需要將表視圖的委託和數據源設置到您的視圖控制器，然後如果數據已準備就緒，請調用表視圖的reloadData方法。

嘗試查看文檔，瞭解詳情： https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/TableView_iPhone/CreateConfigureTableView/CreateConfigureTableView.html#//apple_ref/doc/uid/TP40007451-CH6-SW10