如何在点击时改变UIButton的标题颜色?(复制)

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How can I change UIButton title color? 5 answers
如何更改UIButton标题颜色?5个回答

I have a view and I created some 8 buttons programmatically in that. The title color of buttons is white color. I want to change color of button title to green color when it is clicked. And if i click any other button, the previously clicked button title color should become white and current button title color should become green.

我有一个视图，我用编程的方式创建了8个按钮。按钮的标题颜色是白色。我想把按钮标题的颜色改为绿色。如果我点击任何其他按钮，先前点击的按钮标题颜色应该变成白色，当前按钮标题颜色应该变成绿色。

How to do that?

如何做呢?

3 个解决方案

#1

Initialize all your buttons like this

像这样初始化所有按钮。

[mybutton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[mybutton setTitleColor:[UIColor greenColor] forState:UIControlStateSelected];
[mybutton addTarget:self action:@selector(onclick:) forControlEvents:UIControlEventTouchUpInside];

then change the selected state of you button when clicked

然后在单击时更改按钮的选定状态

-(void)onclick:(id)sender{
UIButton *button = (UIButton *)sender;
button.selected = !button.selected;
}

#2

Create IBAction for all of the buttons, create a property @property (strong, nonatomic) UIButton *currentButton. In the action do the following:

为所有按钮创建IBAction，创建属性@property(强属性，非原子属性)UIButton *currentButton。在行动中做以下事:

-(IBAction)buttonClicked:(id)sender
{
    UIButton *buttonSender = (UIButton *)sender;

    [self.currentButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    self.currentButton = buttonSender;
    [self.currentButton setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
}

#3

Set control state of buttons :

设置按钮控制状态:

[btnOk setTitleColor:[UIColor yellowColor] forState:UIControlStateSelected];
[btnOk setTitleColor:[UIColor yellowColor] forState:UIControlStateHighlighted];
[btnOk setTitleColor:[UIColor yellowColor] forState:UIControlStateNormal];

#1