Question

下面的代码执行我想要的所有内容（将editButton标题和颜色从正常颜色更改为＆＃34;编辑＆＃34;更改为红色＆＃34;取消＆＃34;然后在按下时退回除了当editButton显示红色＆＃34;取消＆＃34;并按下sendButton时，我希望editButton显示正常颜色＆＃34;再次编辑＆＃34;

我做错了什么，或者我还需要做些什么？

谢谢，

约翰

- (IBAction)sendClicked:(id)sender {
    if (dontCheck) {
        dontCheck = NO;
        [editButton setTitle:@"Edit" forState:UIControlStateNormal];
        [editButton setTitleColor:[[sendButton titleLabel] textColor] forState:UIControlStateNormal];  
    }
// ...     
}

- (IBAction)editClicked:(id)sender {
    if (dontCheck)  {
        dontCheck = NO;        
        dataLoaded = NO;
        [sender setTitle:@"Edit" forState:UIControlStateNormal];
        [sender setTitleColor:[[submitButton titleLabel] textColor] forState:UIControlStateNormal];
    } else {
        dontCheck = YES;        
        [sender setTitle:@"Cancel" forState:UIControlStateNormal];
        [sender setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    }
// ...
}

这对我不起作用:(我确实在xib文件中进行了必要的更改。）

 - (IBAction)sendClicked:(id)sender { 
    if (dontCheck) {
        dontCheck = NO;
        [editButton setTitle:@"Edit" forState:UIControlStateNormal];
        [editButton setTitleColor:[[submitButton titleLabel] textColor] forState:UIControlStateNormal];
        [editButton setSelected:NO];
    }
  // ... 
}

 - (IBAction)editClicked:(id)sender { 
    if (dontCheck) { 
        dontCheck = NO; 
        dataLoaded = NO;
        [sender setTitle:@"Edit" forState:UIControlStateNormal];
        [sender setTitleColor:[[submitButton titleLabel] textColor] forState:UIControlStateNormal];
        [editButton setSelected:NO`];
    } else {
        dontCheck = YES;
        [sender setTitle:@"Cancel" forState:UIControlStateSelected];
        [sender setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
        [editButton setSelected:YES];
    }
    // ...
}

Answer 1

您可以为不同的状态设置不同的颜色，例如突出显示，选中，禁用。然后，您无需更改按钮目标操作中的颜色。它还允许您简单地调用任何这些方法来更改按钮状态和外观：

[editButton setDisabled:YES];

或

[editButton setSelected:YES];

设置不同状态的颜色：

[editButton setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
[editButton setTitleColor:[UIColor purpleColor] forState:UIControlStateHighlighted];
[editButton setTitleColor:[UIColor greenColor] forState:UIControlStateSelected];
[editButton setTitleColor:[UIColor grayColor] forState:UIControlStateDisabled];

Answer 2

以下添加项满足了我的要求（在Swift中是最新版本）：

@IBAction func editAction(_ sender: UIButton) 
{
        if (dontCheck) { 
            dontCheck = false 
            dataLoaded = false
            editButton.setTitle("Edit", for: [])
            editButton.setTitleColor(clearAllButton.tintColor, for: [])
            self.editButton.layer.borderColor =  clearAllButton.tintColor.cgColor
        }
        else
        {
            dontCheck = true        
            editButton.setTitle("Cancel", for: [])
            editButton.setTitleColor(UIColor.red, for: [])
            self.editButton.layer.borderColor =  UIColor.red.cgColor
        }
// ...
}

添加self.XXXButton.layer.borderColor等于另一个不变的按钮的tintColor可以解决问题。

如何在不按iOS的按钮的情况下更改UIButton标题/颜色？

2 个答案: