Objective c 如何在按下另一个按钮时取消选择选定的UIButton

我有一个代码，我在其中添加按钮滚动查看使用for循环。当我选择一个按钮时，按钮的标题颜色会因选中uicontrol状态而更改。单击“下一步”按钮时，先前选择的按钮的标题颜色保持不变/保留不变。如何恢复初始选定按钮的正常状态

你需要这样的东西：

[button setSelected:NO]

- (void)changeButtonState:(UIButton *)button {

    for (UIButton * button in [self buttonContainer]) {

        [button setSelected:NO];

    }

    [button setSelected:YES];

}

- (void)someButtonAction:(UIButton *)sender {

    [self changeButtonState:sender];

    // Rest of your action

}

---

在一个数组中按住所有按钮：

@property (nonatomic, strong) NSArray * buttonContainer;

在控制器中声明如下方法：

[button setSelected:NO]

- (void)changeButtonState:(UIButton *)button {

    for (UIButton * button in [self buttonContainer]) {

        [button setSelected:NO];

    }

    [button setSelected:YES];

}

- (void)someButtonAction:(UIButton *)sender {

    [self changeButtonState:sender];

    // Rest of your action

}

并在按钮操作方法中调用它，如下所示：

[button setSelected:NO]

- (void)changeButtonState:(UIButton *)button {

    for (UIButton * button in [self buttonContainer]) {

        [button setSelected:NO];

    }

    [button setSelected:YES];

}

- (void)someButtonAction:(UIButton *)sender {

    [self changeButtonState:sender];

    // Rest of your action

}

---

在界面中创建属性按钮。在click方法中编写此代码

-(void)butonClick:(UIButton *)sender {

    if(prevButton) {
        [prevButton setSelected:NO];
    }     
    prevButton = sender;

    //rest code goes here...
}

---

无需添加for循环。只需跟踪以前选择的按钮一些答案对您有帮助吗？那你为什么不接受呢？