5

我有一个视图,并在其中以编程方式创建了一些 8 个按钮。按钮的标题颜色为白色。我想在单击时将按钮标题的颜色更改为绿色。如果我单击任何其他按钮,先前单击的按钮标题颜色应变为白色,当前按钮标题颜色应变为绿色。

怎么做?

4

3 回答 3

11

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];

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;
}
于 2013-10-09T10:03:18.737 回答
0

IBAction为所有按钮创建,创建一个属性@property (strong, nonatomic) UIButton *currentButton。在操作中执行以下操作:

-(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];
}
于 2013-10-09T09:50:39.300 回答
0

设置按钮的控制状态:

[btnOk setTitleColor:[UIColor yellowColor] forState:UIControlStateSelected];
[btnOk setTitleColor:[UIColor yellowColor] forState:UIControlStateHighlighted];
[btnOk setTitleColor:[UIColor yellowColor] forState:UIControlStateNormal];
于 2013-10-09T10:22:00.437 回答