Question

我在目标c中使用带有不同标签的for循环创建了按钮，但问题是除了前2-3次按钮点击之外它不会调用BtnClick函数。任何帮助将不胜感激。

for(int i = 0; i<40; i++) 
{ 
   UIButton butContinue...  
   btnContinue.tag=i; 
    [btnContinue setTitle:[NSString stringWithFormat:@"%d",i] 
                 forState:UIControlStateNormal];   
    btnContinue.autoresizingMask=YES; 
    [btnContinue addTarget:self 
                    action:@selector(clickBtn_Continue:)     
         forControlEvents:UIControlEventTouchUpInside]; 
}

Answer 1

请同时动态设置框架。在此代码中，它将在同一帧上添加40个按钮。初始化带有alloc init的按钮。所以它不会自动释放。使用下面 UIButton * yourButton = [[UIButton alloc] initWithFrame：CGRectMake（0,0,50,50）]; //并动态设置框架

Answer 2

循环代码以创建按钮

 UIButton *yourButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
 [yourButton setFrame:CGRectMake(x, y, 50, 50)];
 [yourButton setTitle:@"Click Here" forState:UIControlStateNormal];
 [yourButton addTarget:self action:@selector(yourAction:) forControlEvents:UIControlEventTouchUpInside];
 yourButton.tag = tag;
 [self.view addSubview:yourButton];
 //increment x or y as per your need,

行动类似

- (IBAction) yourAction : (UIButton *) sender
{
      NSLog(@"I'm %d pressed.",sender.tag);
}

在目标c中发出多个按钮动作的问题

2 个答案: