我正在创建一个应用程序,其中包含五个按钮,以编程方式创建。以下是要求...
单击第一个按钮时,它会保持高亮显示。点击第二个按钮,首先变为正常,第二个保持高亮显示...即点击的特定按钮变为高亮显示,所有其他按钮保持正常.......请帮助..答案 0 :(得分:0)
这是我的解决方案:
获取属性以跟踪所选按钮
@property (nonatomic, weak) UIBUtton *lastSelectedButton;
在按钮回调方法中(添加按钮时配置的选择器):
- (void)didClickButton:(UIButton *)button {
if (self.lastSelectedButton isEqual:button) {
// Don't need to do anything in this case because the button is already selected
return;
}
[self.lastSelectedButton setSelected:NO];
[button setSelected:YES];
[self setLastSelectedButton:button];
}
如果您有任何疑问或需要更多帮助,请与我联系!
答案 1 :(得分:0)
您可以创建一个包含标记值的实例变量int
。现在哪个按钮单击,您需要清除上一个按钮的标签值并将其分配给当前按钮。
对于Ex:
int const TAG_HIGHLIGHTED_BUTTON = 100;
- (void)buttonAction:(UIButton *)button {
UIButton *prevButton = [self.view viewWithTag:TAG_HIGHLIGHTED_BUTTON];
[prevButton setTag:0];
[button setTag:TAG_HIGHLIGHTED_BUTTON];
}
答案 2 :(得分:0)
您可以设置
[button setBackgroundImage:[UIImage imageNamed:@"normalbackgroundimage"] forState:UIControlStateNormal]; //not highlighted
[button setBackgroundImage:[UIImage imageNamed:@"highlightedbackgroundimage"] forState:UIControlStateHighlighted | UIControlStateSelected]; //highlighted
现在,当您设置button.selected = YES
时,它会突出显示
所以你可以点击按钮
来做这样的事情button1.selected = YES;
otherButton.selected = NO;
您问题的简单解决方案是创建一个ibaction将其连接到您想要选择/取消选择的所有按钮,然后执行此操作
-(IBAction)someButtonPressed:(UIButton*)sender{
button1.selected = NO;
button2.selected = NO;
button3.selected = NO; //and so on...just set all your buttons to selected = NO
//at the end you just select button you clicked
sender.selected = YES;
}