Ios 如何将NSMutableArray数据从UIViewController传递到TableView子视图

我试图用通过修改

NSMutableArray

创建的数据填充子视图表。基本上，一个人回答10个问题，我想显示一个包含正确答案图像的子视图，并标记一个复选标记图像，以确定用户的问题是对的还是错的。我在tableview中创建了一个自定义单元格，并将它们链接到一个表格单元格视图控制器（resultCellView）

游戏循环在此视图控制器

GamePlayViewController.m

文件上运行，然后调用函数animate results:

- (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];
}

}

我将此方法创建的问题记录在日志中：

- (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];

}

修改后的问题是创建的，但正如我所说，我不确定如何从这一点出发。我已尝试将此代码添加到

GamePlayViewController.m

文件：

-(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;
}

---

但这段代码什么也没透露。我仍在学习，我已经设法做到了这一点。我已经能够让这十个问题正常运行，但现在我正在努力完成这最后一部分，老实说，我陷入了愚蠢。只是没能弄明白而已。非常感谢您的帮助。

如果您修改了

NSMutableArray

，请在成功修改后调用

[tableView reloadData]

。希望这会有所帮助。：）

您需要将表视图的委托和数据源设置为视图控制器，然后如果数据已准备好，则调用表视图的重载数据方法

尝试查看文档以了解更多信息：

---

更新问题后，您应该调用[resultsTable reloadData]Ray。我试图通过将控件拖动到GamePlayViewController来添加我的表视图的委托和数据源。并将[resultsTable reloadData]添加到我的answerMethod的末尾。但是收到一个未能从其数据源获取单元格的消息（错误。一旦游戏尝试加载，子视图似乎正在尝试在创建数组之前加载表。感谢您的回答和参考资料。在继续之前，我将彻底阅读它。您需要注册您的单元格类

-（void）registerClass:（nullable class）cellClass forCellReuseIdentifier：（NSString*）标识符

，否则，

静态NSString*CellIdentifier=@“resultsListCell”；resultsViewCell*cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier]

将为零。感谢您迄今为止的所有帮助，我正在尝试加载此UIViewresultsView，其中包含最终分数和玩家提问结果。我尝试了您的建议，但仍然无效。我尝试通过将控件拖动到GamePlayViewController来添加表视图的委托和数据源。并添加了[resultsTable reloadData]到我的answerMethod的结尾。但是收到一个未能从其数据源获取单元格的消息（错误）。并且尝试注册我的类在加载GamePlayViewController时仍然崩溃。我知道它的用户错误。

-(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);

}];


}

- (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];

}

-(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;
}