Question

我有12个按钮的视图。我希望能够在点击它时只执行一次操作按钮，然后将该特定按钮设置为禁用。当我点击另一个按钮时我想要发生同样的事情+设置其他按钮启用。有解决方案吗？

Answer 1

您可以为每个按钮添加标签，当您使用方法viewWithTag点按按钮时，您可以启用和禁用每个按钮：

创建UIButton时，您可以添加：

UIButton *button0 = ...
button0.tag = 0;

UIButton *button1 = ...
button1.tag = 1;

//and so on

在按钮的每个操作中，您必须像这样传递id对象：

-(void)tapButtonOne:(id)sender {

   //with this sender you can retrive the tag of the button clicked
   UIButton *button = sender;
   int buttonTag = button.tag

   //now you can check every button and enable the other that haven't the same buttonTag
   //with the first tag = 0 plus 12 the last tag will be 11 so i<12
   for (int i = 0; i<12; i++) {
     //self.view if you have added the buttons on self.view, otherwise you must write your view
     UIButton *buttonTemp = (UIButton *)[self.view viewWithTag:i];
     if(buttonTemp.tag != buttonTag) {

       buttonTemp.enabled = YES;
     }
     else {
       buttonTemp.enabled = NO;
     }
   }
}

Answer 2

创建IBOutletCollection，而不是创建插座从界面构建器拖动到应用程序时，可以将“Outlet”选项更改为“Outlet Collection” 完成第一个按钮后，控制拖动所有按钮并将它们链接到同一个集合将所有按钮连接到同一IBAction并确保它指定发件人（这是默认值）。然后，在你的行动中：

for (UIButton* button in self.yourOutletCollection){
    if (button == sender){
        // this is the button that was tapped
    } else {
        // all the other buttons go here
    }
 }

享受！

在视图问题中启用和禁用多个按钮

2 个答案: