objective-c - 按钮检查正确答案objective-c

Question

我有一个 UIViewController，里面有 NSArray，我输入了我的正确答案，还有 3 个按钮和 3 个 NSArray 的标题，我想检查我的按钮标题是否等于正确答案然后转到正确的页面否则转到错误的页面

你能帮我完成这个实现吗：

提前致谢！

这是我的代码：

NSString *correctOne = @"test1";
NSString *correctTwo = @"test2";
NSString *correctThree = @"test3";
NSString *correctFour = @"test4";
NSString *correctFive = @"test5";
NSString *correctSix = @"test6";
NSString *correctSeven = @"test7";
NSString *correctEight = @"test8";



correctComments = [[NSArray alloc] initWithObjects: correctOne, correctTwo, correctThree, 
correctFour, correctFive, correctSix, correctSeven, correctEight, nil];

int rand = arc4random()%8;
  NSString *correct = [correctComments objectAtIndex:rand];
[test setTitle:(firstAnswer) forState:UIControlStateNormal];
[test setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
[test setTag:0];

[ansONE setTitle:(secondAnswer) forState:UIControlStateNormal];
[ansONE setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
[ansONE setTag:1];

[ansTWO setTitle:(threeAnswer) forState:UIControlStateNormal];
[ansTWO setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
[ansTWO setTag:2];

 - (IBAction)suivant:(id)sender {

//我的问题是我应该如何检查我的按钮标题和正确的评论

 }

Answer 1

首先，您必须将代码片段中的正确答案存储到属性中：

self.correctAnswer = correct;

然后对这些字符串进行比较：

- (IBAction)suivant:(UIButton *)sender {
    // You wanted to check for title:
    if ([sender.currentTitle isEqualToString:self.correctAnswer]) {
        // Correct...
    }
    else {
        // Wrong...
    }
}

Answer 2

- (IBAction)suivant:(id)sender {
    UIButton *button = (UIButton *)sender;
    int correctIndex = ...;

    BOOL thisIsTheCorrectButton = (button.tag == correctIndex);
    // Do whatever
}