IOS plist简单测验游戏

Question

嗨我一直有一个问题的测验游戏我一直在试图创建和搜索无处不在的答案，但没有运气。我正在创建一个测验，其中包含许多问题和答案，并且答案一切正常，除非我选择答案时下一个问题不会出现。从使用NSLogs，我可以看到currentQuestion值的增量工作实际上是self.question，似乎失去了plist文件这里是我的plist代码，因为我无法发布图像。

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN""http://www.apple.com/DTDs/PropertyList-1.0.dtd"> 
<plist version="1.0"> 
<dict> 
    <key>Questions</key> 
<array> 
    <dict> 
     <key>QuestionTitle</key> 
     <string>What is 1 + 1?</string> 
     <key>A</key> 
     <string>4</string> 
     <key>B</key> 
     <string>3</string> 
     <key>C</key> 
     <string>7</string> 
     <key>D</key> 
     <string>2</string> 
     <key>QuestionAnswer</key> 
     <string>D</string> 
    </dict> 
    <dict> 
     <key>QuestionTitle</key> 
     <string>What is 2 + 2?</string> 
     <key>A</key> 
     <string>4</string> 
     <key>B</key> 
     <string>3</string> 
     <key>C</key> 
     <string>7</string> 
     <key>D</key> 
     <string>2</string> 
     <key>QuestionAnswer</key> 
     <string>A</string> 
    </dict> 
    <dict> 
     <key>QuestionTitle</key> 
     <string>What is 5 + 2?</string> 
     <key>A</key> 
     <string>4</string> 
     <key>B</key> 
     <string>3</string> 
     <key>C</key> 
     <string>7</string> 
     <key>D</key> 
     <string>2</string> 
     <key>QuestionAnswer</key> 
     <string>C</string> 
    </dict> 
    <dict> 
     <key>QuestionTitle</key> 
     <string>What is 9 - 2?</string> 
     <key>A</key> 
     <string>4</string> 
     <key>B</key> 
     <string>3</string> 
     <key>C</key> 
     <string>7</string> 
     <key>D</key> 
     <string>2</string> 
     <key>QuestionAnswer</key> 
     <string>C</string> 
    </dict> 
    <dict> 
     <key>QuestionTitle</key> 
     <string>What is 10 - 6?</string> 
     <key>A</key> 
     <string>4</string> 
     <key>B</key> 
     <string>3</string> 
     <key>C</key> 
     <string>7</string> 
     <key>D</key> 
     <string>2</string> 
     <key>QuestionAnswer</key> 
     <string>A</string> 
    </dict> 
    <dict> 
     <key>QuestionTitle</key> 
     <string>What is 1 + 2?</string> 
     <key>A</key> 
     <string>4</string> 
     <key>B</key> 
     <string>3</string> 
     <key>C</key> 
     <string>7</string> 
     <key>D</key> 
     <string>2</string> 
     <key>QuestionAnswer</key> 
     <string>B</string> 
    </dict> 
</array> 

我也跟着来创建这个测验的教程有问题因为在那里我有根为重点的主键，但我不能似乎能够改变根的名字我相信如果有人知道如何改变这种情况，可以解决我的问题？我编辑了代码以解决这个问题，这是我的viewDidLoad和showNextQuestion注意：当按下任何按钮A，B，C或D时，showNextQuestion被调用。

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
// Do any additional setup after loading the view. 

    NSString *path = [[NSBundle mainBundle] pathForResource:@"Questions1" ofType:@"plist"]; 
    NSDictionary *tempDict = [[NSDictionary alloc] initWithContentsOfFile:path]; 
    self.questions = [tempDict objectForKey:@"Questions"]; 

    currentQuestion = -1; 
    NSLog(@"%d",currentQuestion); 
    [self showNextQuestion]; 
} 

-(void)showNextQuestion 
{ 
    currentQuestion++; 
    NSLog(@"%d",currentQuestion); 
    NSLog(@"%d",[self.questions count]); 
    if(currentQuestion < [self.questions count]) 
    { 
     NSLog(@"Inside the loop"); 
     NSDictionary *nextQuestion = [self.questions objectAtIndex:currentQuestion]; 
     self.answer = [nextQuestion objectForKey:@"QuestionAnswer"]; 
     self.lblQuestion.text = [nextQuestion objectForKey:@"QuestionTitle"]; 
     self.lblQuestionA.text = [nextQuestion objectForKey:@"A"]; 
     self.lblQuestionB.text = [nextQuestion objectForKey:@"B"]; 

     if([nextQuestion objectForKey:@"C"]){ 
      self.lblQuestionC.hidden = NO; 
      self.btnC.hidden = NO; 

      self.lblQuestionC.text = [nextQuestion objectForKey:@"C"]; 
     } 
     else{ 
      self.lblQuestionC.hidden =YES; 
      self.btnC.hidden = YES; 
     } 

     if([nextQuestion objectForKey:@"D"]){ 
      self.lblQuestionD.hidden = NO; 
      self.btnD.hidden = NO; 

      self.lblQuestionD.text = [nextQuestion objectForKey:@"D"]; 
     } 
     else{ 
      self.lblQuestionD.hidden =YES; 
      self.btnD.hidden = YES; 
     } 

    } 
    else{ 
     //Game Over 
    } 
} 

任何帮助，将不胜感激谢谢你在前进

Answer 1

self.lblQuestionTitle.text = [nextQuestion objectForKey:@"QuestionTitle"];