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ios - 带有分隔符的Objective C UIButton并在选择时更改文本颜色

问题描述

我创建了一行UIButtons并添加了一周的日期和日期UILabel。I have also created a UIViewselector that when the button is selected, it will highlight the whole button.

现在我被困在如何在按钮之间添加分隔符或垂直线。而不是突出显示UIButton我希望在text colour选择按钮时将 更改为蓝色。请帮忙

我创造了什么

我有的

我想要达到的目标

想要达到

代码

CGFloat HEIGHT_BTN = 55.0; //--- 10 pixels from the navigation view

CGFloat HEIGHT_LABEL = 30.0;
CGFloat HEIGHT_LABEL2 = 15.0;


   -(void)setupSegmentButtons
{
    CGFloat Y_POS_BTN = [[UIApplication sharedApplication] statusBarFrame].size.height+5;

//=== The view where the buttons sits
navigationView = [[UIView alloc]initWithFrame:CGRectMake(0,Y_POS_BTN,self.view.frame.size.width,HEIGHT_BTN)];
navigationView.backgroundColor = [UIColor whiteColor];

[self.view addSubview:navigationView]; //=== Create a View called navigationView

//==== Setup the shadows
UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:self.navigationView.bounds];
self.navigationView.layer.masksToBounds = NO;
self.navigationView.layer.shadowColor = [UIColor lightGrayColor].CGColor;
self.navigationView.layer.shadowOffset = CGSizeMake(5.0f, 5.0f);
self.navigationView.layer.shadowOpacity = 0.8f;
self.navigationView.layer.shadowPath = shadowPath.CGPath;

//=== Get the dates and formatting of the dates
NSDate *now = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDate *beginningOfThisWeek;
NSTimeInterval durationOfWeek;

[calendar rangeOfUnit:NSWeekCalendarUnit
            startDate:&beginningOfThisWeek
             interval:&durationOfWeek
              forDate:now];

NSDateComponents *comps = [calendar components:NSUIntegerMax fromDate:now];

NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd/MM/YYYY"];
NSDateFormatter *datelblFormat = [[NSDateFormatter alloc] init];
[datelblFormat setDateFormat:@"dd"];
NSDateFormatter *daylblFormat= [[NSDateFormatter alloc] init];
[daylblFormat setDateFormat:@"EEE"];

//=== Loop 7 times to create the Buttons and the 2 lines Labels
for (int i = 0; i<numControllers; i++) {

    UIButton *button = [[UIButton alloc]initWithFrame:CGRectMake(i*(self.navigationView.frame.size.width/numControllers), 0, (self.navigationView.frame.size.width/numControllers),HEIGHT_BTN)];

    [navigationView addSubview:button]; //=== Put the buttons into the navigation View

    NSString *dateString = [dateFormatter stringFromDate:[calendar dateFromComponents:comps]];
    [dtDate addObject:dateString];

    NSString *lblDate = [datelblFormat stringFromDate:[calendar dateFromComponents:comps]];

    firstLineButton = [[UILabel alloc] initWithFrame:CGRectMake(0,5,self.view.frame.size.width/numControllers,HEIGHT_LABEL)];

    firstLineButton.text = lblDate;
    firstLineButton.font = [UIFont systemFontOfSize:20];
    firstLineButton.textColor = [UIColor whiteColor];
    firstLineButton.textAlignment=NSTextAlignmentCenter;
    [button addSubview:firstLineButton]; //=== Put the Date in the 1st line of the the button

    NSString *lblDay = [daylblFormat stringFromDate:[calendar dateFromComponents:comps]];

    UILabel *secondLineButton = [[UILabel alloc] initWithFrame:CGRectMake(0,28,self.view.frame.size.width/numControllers,HEIGHT_LABEL2)];
    secondLineButton.text = lblDay;
    secondLineButton.textColor = [UIColor whiteColor];
    secondLineButton.font = [UIFont boldSystemFontOfSize:11];
    secondLineButton.textAlignment=NSTextAlignmentCenter;
    [button addSubview:secondLineButton]; //=== Put the Day in the 2nd line of the Button

    button.tag = i; //--- IMPORTANT: if you make your own custom buttons, you have to tag them appropriately

    button.backgroundColor = [UIColor colorWithRed:236.0f/255.0f green:0/255.0f blue:140.0f/255.0f alpha:0.6];//%%% buttoncolors

    [button addTarget:self action:@selector(tapSegmentButtonAction:) forControlEvents:UIControlEventTouchUpInside];

    ++comps.day;
}

[self setupSelector]; //=== The selection bar or highligthed area
}

//=== sets up the selection bar under the buttons or the highligted buttons on the navigation bar
-(void)setupSelector {

    //CGFloat Y_POS_BTN = [[UIApplication sharedApplication] statusBarFrame].size.height+5;
    selectionBar = [[UIView alloc]initWithFrame:CGRectMake(0, Y_BUFFER, (self.view.frame.size.width/numControllers),HEIGHT_BTN)];
    selectionBar.backgroundColor = [UIColor colorWithRed:236.0f/255.0f green:0/255.0f blue:140.0f/255.0f alpha:0.6]; //%%% sbcolor
    //selectionBar.alpha = 0.8; //%%% sbalpha
    [navigationView addSubview:selectionBar];
}

//=== When the top button is tapped
#pragma mark Setup
 -(void)tapSegmentButtonAction:(UIButton *)button {

    sDtDate = dtDate[button.tag];

    [self LoadClasses];

    __weak typeof(self) weakSelf = self;
    [weakSelf updateCurrentPageIndex:button.tag];

    NSInteger xCoor = selectionBar.frame.size.width*self.currentPageIndex;

    selectionBar.frame = CGRectMake(xCoor, selectionBar.frame.origin.y, selectionBar.frame.size.width, selectionBar.frame.size.height);
}

标签： iosobjective-cuibutton

解决方案

我在这里用堆栈视图和自动布局的力量提供了一个答案

代码将受到限制，您几乎可以自定义 IB 中的所有内容。
设置选中状态时可能需要注意按钮的色调。

-(IBAction)selector:(id)sender{
    UIButton * button = (UIButton *)sender;
    [button setSelected:  !button.isSelected ];
 }

IB中的设置

选定的州

topstackview 第二个堆栈视图

使用这个想法，您可以更快、更安全地构建您的示例。

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