Question

在我的ViewController的ios中，我添加了四个按钮及其相关指示符OK

当我点击button4然后按钮4时，它的指示灯颜色必须为黑色，所有其他所有按钮及其指示灯颜色必须为白色。当我单击button2然后按钮2时，文本颜色和指示器必须为黑色。其余按钮文本颜色和指示符必须为白色，如下图所示

为此，我写了一些代码，但它没有用。

请你帮帮我

我的代码： -

#import "ViewController12.h"
#import "Masonry.h"

@interface ViewController12 ()
{
    UIView * TabBar;
    UIButton * AllTrips;
    UIButton * OpenTrips;
    UIButton * AssignedTrips;
    UIButton * CompletedTrips;
    UIButton * button;
    UIView * StripView;
    UILabel * label;
}

@end

@implementation ViewController12

- (void)viewDidLoad {

    TabBar = [[UIView alloc]init];
    TabBar.backgroundColor = [UIColor lightGrayColor];
    TabBar.translatesAutoresizingMaskIntoConstraints = NO;
    [self.view addSubview:TabBar];

    [TabBar mas_makeConstraints:^(MASConstraintMaker *make) {

        make.top.equalTo(@0);
        make.left.equalTo(@0);
        make.right.equalTo(@0);
        make.height.equalTo(@100);

    }];

    label = [[UILabel alloc] init];
    label.textAlignment = NSTextAlignmentCenter;
    label.textColor = [UIColor clearColor];
    label.text = @"Hello";
    label.backgroundColor = [UIColor clearColor];
    label.translatesAutoresizingMaskIntoConstraints = NO;
    [TabBar addSubview:label];

    [label mas_makeConstraints:^(MASConstraintMaker *make) {

        make.top.equalTo(@0);
        make.left.equalTo(@10);
        make.right.equalTo(@-10);
        make.height.equalTo(@10);
        make.centerX.equalTo(TabBar);
    }];

    AllTrips = [self createButton:@"All"];
    AllTrips.tag = 1;
    [TabBar addSubview: AllTrips];

    OpenTrips = [self createButton:@"Open"];
    OpenTrips.tag = 2;
    [TabBar addSubview: OpenTrips];

    AssignedTrips = [self createButton:@"Assigned"];
    AssignedTrips.tag = 3;
    [TabBar addSubview: AssignedTrips];

    CompletedTrips = [self createButton:@"Completed"];
    CompletedTrips.tag = 4;
    [TabBar addSubview: CompletedTrips];


    NSDictionary * views = NSDictionaryOfVariableBindings(AllTrips,OpenTrips,AssignedTrips,CompletedTrips);

    [TabBar addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"H:|-5-[AllTrips]-2-[OpenTrips]-2-[AssignedTrips]-2-[CompletedTrips]-5-|"]
                                                                   options:0
                                                                   metrics:nil
                                                                     views:views]];

    [TabBar addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"[AllTrips(==OpenTrips)]" options:0 metrics:nil views:views]];

    [TabBar addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"[OpenTrips(==AssignedTrips)]" options:0 metrics:nil views:views]];

    [TabBar addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"[AssignedTrips(==CompletedTrips)]" options:0 metrics:nil views:views]];


    NSArray * keys = @[@"AllTrips",@"OpenTrips",@"AssignedTrips",@"CompletedTrips"];

    for (NSString * key in keys) {

        [TabBar addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|-50-[%@(50)]",key]
                                                                       options:0
                                                                       metrics:nil
                                                                         views:views]];
    }
}

-(UIButton *)createButton:(NSString*)Title{

    button = [[UIButton alloc] init];
     button.translatesAutoresizingMaskIntoConstraints = NO;
    [button setTitleColor:[UIColor greenColor] forState:UIControlStateNormal];
    [button setTitle:Title forState:UIControlStateNormal];
    [button addTarget:self
               action:@selector(ButtonAction:)
     forControlEvents:UIControlEventTouchUpInside];
    button.backgroundColor = [UIColor orangeColor];

    StripView = [[UIView alloc]init];
    StripView.translatesAutoresizingMaskIntoConstraints = NO;
    StripView.backgroundColor = [UIColor clearColor];
    [button addSubview:StripView];

    NSDictionary * StripDic = NSDictionaryOfVariableBindings(StripView);


    [button addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"H:|-0-[StripView]-0-|"]
                                                                   options:0
                                                                   metrics:nil
                                                                     views:StripDic]];

    [button addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:[StripView(5)]-0-|"]
                                                                   options:0
                                                                   metrics:nil
                                                                     views:StripDic]];
    return button;

}

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

    if(![sender isSelected]){

        [sender setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        StripView.backgroundColor = [UIColor blackColor];
        sender.selected = YES;
    }
    else{

        [sender setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        StripView.backgroundColor = [UIColor clearColor];
        sender.selected = NO;
    }
}

@end

Answer 1

您可以将UIButton定义为以下代码：

UIButton *btn = [UIButton new];
[btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[btn setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];
[btn setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
[btn setTitleColor:[UIColor grayColor] forState:UIControlStateDisabled];
//etc...

Answer 2

调用方法，不需要Buttontitle，按钮获取所有控件的所有权

button = [[UIButton alloc] init];
//set the frame for your button
button.translatesAutoresizingMaskIntoConstraints = NO;
[button setTitleColor:[UIColor GreenColor] forState:UIControlStateNormal];
 [button setTitle:Title forState:UIControlStateNormal];
[button addTarget:self
            action:@selector(ButtonAction:)
  forControlEvents:UIControlEventTouchUpInside];

确实是sender，发件人是您当前的按钮Buttontitle

- （无效）ButtonAction：（的UIButton *）发件人{

if(![sender isSelected]){


    for(UIView* view in sender.subviews){
        if([view isKindOfClass:[UIView class]] ){
            view.backgroundColor = [UIColor blueColor];
            NSLog(@"the view name ==%@",view);
        }
        else{

        }
    }

    [sender setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
   // StripView.backgroundColor = [UIColor blackColor];
    sender.selected = YES;
}
else{


    for(UIView* view in sender.subviews){
        if([view isKindOfClass:[UIView class]] ){
            view.backgroundColor = [UIColor yellowColor];
            NSLog(@"the view name ==%@",view);
        }
        else{

        }
    }
    [sender setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
   // StripView.backgroundColor = [UIColor clearColor];
    sender.selected = NO;
}
}

Answer 3

您可以在按钮操作方法中执行以下操作

<div class="slider" id="main-slider"></div>

Answer 4

在方法＆＃34; createButton＆＃34;

中设置StripView的标记值

StripView.tag = 10;

像这样更改ButtonAction方法

-(void)buttonAction:(UIButton*)sender{
    for(UIView* view in TabBar.subviews){
        UIButton *btn = (UIButton *)view;
        [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        [[sender viewWithTag:10] setBackgroundColor:[UIColor clearColor]];

    }
    [sender setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [[sender viewWithTag:10] setBackgroundColor:[UIColor blackColor]];

}

Answer 5

我现在没有XCode，因此我通过成像键入代码。

NSArray *buttonCollection; ///< IBOutletCollection of UIButtons

- (void)buttonAction:(UIButton *)sender
{
    // Make all button un-selected 
    [buttonCollection setValue:@(NO) forKeyPath:@"selected"];

    // Make the sender UIButton selected
    sender.selected = YES;
}

所选的UIButton文本颜色为黑色，未选中时，其文本颜色为白色。您可以按Jiri's answer

设置UIButton州

更新

选定的UIButton似乎有自定义下划线。我更喜欢子类UIButton，并在选择它时更改它的UI行为。

当我们在ios中点击它时，如何更改UI按钮文本颜色

我的代码： -

5 个答案:

更新