在iOS 7中,如何更改UIActionSheet中选项的颜色？

Question

我在整个应用程序中使用绿色作为"动作颜色",我希望我的UIActionSheets中的选项也是绿色的,以保持一致性.如何将UIActionSheet选项的颜色从蓝色更改为绿色？

Answer 1

利用willPresentActionSheet委托方法UIActionSheet更改操作表按钮颜色.

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet
{
    for (UIView *subview in actionSheet.subviews) {
        if ([subview isKindOfClass:[UIButton class]]) {
            UIButton *button = (UIButton *)subview;
            button.titleLabel.textColor = [UIColor greenColor];
        }
    }
}

Answer 2

你可以这样做:

// Your code to instantiate the UIActionSheet
UIActionSheet *actionSheet = [[UIActionSheet alloc] init];
// Configure actionSheet

// Iterate through the sub views of the action sheet
for (id actionSheetSubview in actionSheet.subviews) {
    // Change the font color if the sub view is a UIButton
    if ([actionSheetSubview isKindOfClass:[UIButton class]]) {
        UIButton *button = (UIButton *)actionSheetSubview;
        [button setTitleColor:[UIColor greenColor] forState:UIControlStateNormal];
        [button setTitleColor:[UIColor greenColor] forState:UIControlStateSelected];
        [button setTitleColor:[UIColor greenColor] forState:UIControlStateHighlighted];

    }
}

如果您要重复使用它,我会将UIActionSheet子类化并使用此代码.