Question

在我的应用程序中，我可以更改所选分段控件的颜色。但是为另一个索引而不是选定的索引更改颜色。我可以在索引中找到任何错误。

帮助我！

我的代码如下：

if([SegmentRound selectedSegmentIndex] == 0)
    {

        UIColor *newSelectedTintColor2 = [UIColor colorWithRed: 98/255.0 green:156/255.0 blue:247/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:0] setTintColor:newSelectedTintColor2];

        UIColor *newSelectedTintColor1 = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:1] setTintColor:newSelectedTintColor1];

        UIColor *newSelectedTintColor0 = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:2] setTintColor:newSelectedTintColor0];



        FLAGROUND=1;
    }

    if([SegmentRound selectedSegmentIndex] == 1)
    {
        UIColor *newSelectedTintColor1 = [UIColor colorWithRed: 98/255.0 green:156/255.0 blue:247/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:1] setTintColor:newSelectedTintColor1];

        UIColor *newSelectedTintColor0 = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:0] setTintColor:newSelectedTintColor0];

        UIColor *newSelectedTintColor2 = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:2] setTintColor:newSelectedTintColor2];

        FLAGROUND=2;
    }
    if([SegmentRound selectedSegmentIndex] == 2)
    {
        UIColor *newSelectedTintColor0 = [UIColor colorWithRed: 98/255.0 green:156/255.0 blue:247/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:2] setTintColor:newSelectedTintColor0];

        UIColor *newSelectedTintColor2 = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:0] setTintColor:newSelectedTintColor2];

        UIColor *newSelectedTintColor1 = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];
        [[[SegmentRound subviews] objectAtIndex:1] setTintColor:newSelectedTintColor1];
        FLAGROUND=3;
    }

viewWillAppear中：

[SegmentRound setSelectedSegmentIndex:0];

Answer 1

我建议在您的条件之外创建两种颜色，使您的代码更小一些。然后，您可以使用foreach迭代您的细分：

UIColor *selectedColor = [UIColor colorWithRed: 98/255.0 green:156/255.0 blue:247/255.0 alpha:1.0];
UIColor *deselectedColor = [UIColor colorWithRed: 54/255.0 green:52/255.0 blue:48/255.0 alpha:1.0];

for (UIControl *subview in [SegmentRound subviews]) {
    if ([subview isSelected]) 
       [subview setTintColor:selectedColor]; 
    else
       [subview setTintColor:deselectedColor]; 
}

Answer 2

看看这个

-(IBAction)segmentBtnPressed:(UISegmentedControl*)sender{
for (int i=0; i<[sender.subviews count]; i++) 
{
    if ([[sender.subviews objectAtIndex:i]isSelected] ) 
    {               
    UIColor *tintcolor=[UIColor colorWithRed: 98/255.0 green:156/255.0 blue:247/255.0 alpha:1.0];
    [[sender.subviews objectAtIndex:i] setTintColor:tintcolor];
    }
    else{
     UIColor *tintcolor=[UIColor colorWithRed:127.0/255.0 green:161.0/255.0 blue:183.0/255.0 alpha:1.0];
    [[sender.subviews objectAtIndex:i] setTintColor:tintcolor];

    }
}
}

此外，您可以在UISegmentedControl selected segment color

查看更多答案

Answer 3

我希望你可以简单地改变段控制的TintColor。它对我来说很完美。

Answer 4

我尝试在控制台上打印段控制的子视图，我检测到索引的顺序是相反的，表示如果selectedSegment为0，则子视图应为2而不是0.尝试在控制台上打印段控件，您将看到与跟随细分行动。：

NSArray *theArr = [mSegmentedControl subviews];
            DEBUGLOG(@"controls arr: %@",theArr);

登录控制台：

controls arr: (
    "<UISegment: 0x8598ad0; frame = (77 0; 76 34); opaque = NO; layer = <CALayer: 0x8598b30>>",
    "<UISegment: 0x85986e0; frame = (0 0; 76 34); opaque = NO; layer = <CALayer: 0x8598740>>"
)

更改所选分段控件的颜色

4 个答案: