封装顶部选择按钮（用block实现在当前控制器下面添加button点击方法）

最新推荐文章于 2022-03-26 19:54:32 发布

原创最新推荐文章于 2022-03-26 19:54:32 发布 · 598 阅读

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文章标签：

#block #实用 #小功能demo #类与类之间的交互

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******************************************************************************

baseView.h

#import <UIKit/UIKit.h>

typedef void(^ClickBlock)(UIButton *);

@interface baseView : UIView
{
BOOL isSelected;
}
@property(nonatomic, copy)ClickBlock block;
@property (nonatomic, retain)UIButton *btn;
@property (nonatomic, retain)UIView *smallLineV;
@property (nonatomic, retain)NSArray *titleArr;

-(instancetype)initWithFrame:(CGRect)frame titleArr : (NSArray *)titleArr;
- (void)addBlock:(ClickBlock)block;

@end

******************************************************************************

baseView.m

#import "baseView.h"
#import "UIViewExt.h"
// 获取设备屏幕的物理尺寸
#define kScreenHeight [UIScreen mainScreen].bounds.size.height
#define kScreenWidth [UIScreen mainScreen].bounds.size.width

@implementation baseView
-(instancetype)initWithFrame:(CGRect)frame titleArr : (NSArray *)titleArr
{self = [super initWithFrame:frame];
    if (self) {
        self.titleArr = titleArr;
        [self _initViews];
    }
    return self;
}

-(void)_initViews
{
    for (int i = 0; i < _titleArr.count ; i ++) {
        self.btn = [UIButton buttonWithType:UIButtonTypeCustom];
        _btn.frame = CGRectMake(kScreenWidth/_titleArr.count * i, 0, kScreenWidth/_titleArr.count, self.height - 1);
        _btn.tag = i;
        [_btn setTitle:_titleArr[i] forState:UIControlStateNormal];
        [_btn setTitleColor:[UIColor colorWithRed:0.66f green:0.66f blue:0.66f alpha:1.00f] forState:UIControlStateNormal];
        [_btn addTarget:self action:@selector(btnAction:) forControlEvents:UIControlEventTouchUpInside];
        [self addSubview:_btn];

    }
    _smallLineV = [[UIView alloc]initWithFrame:CGRectMake(0, self.height , kScreenWidth/_titleArr.count, 1)];
    _smallLineV.backgroundColor = [UIColor colorWithRed:0.24f green:0.25f blue:0.23f alpha:1.00f];
    [self addSubview:_smallLineV];
    UIView *lineV = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, 1)];
    lineV.top = self.height - 1;
    lineV.backgroundColor = [UIColor colorWithRed:0.95f green:0.95f blue:0.95f alpha:1.00f];
    [self addSubview:lineV];


}
- (void)addBlock:(ClickBlock)block
{
   [_btn addTarget:self action:@selector(btnAction:) forControlEvents:UIControlEventTouchUpInside];
   self.block = block;
}
#pragma mark 按钮点击事件
-(void)btnAction : (UIButton *)btn
{
    if (self.block != nil) {
        self.block(btn);
    }
    _smallLineV.frame = CGRectMake(kScreenWidth/_titleArr.count *btn.tag, self.height , kScreenWidth/_titleArr.count, 1);
    for(id cc in [self subviews])
    {
        if([cc isKindOfClass:[UIButton class]])
        {
            UIButton *btn = (UIButton *)cc;
            [btn setTitleColor:[UIColor colorWithRed:0.66f green:0.66f blue:0.66f alpha:1.00f] forState:UIControlStateNormal];
        }
    }
    isSelected = !isSelected;
    if (!isSelected) {
        [btn setTitleColor:[UIColor colorWithRed:0.66f green:0.66f blue:0.66f alpha:1.00f] forState:UIControlStateNormal];
    }else
    {
        [btn setTitleColor:[UIColor colorWithRed:0.00f green:0.00f blue:0.00f alpha:1.00f] forState:UIControlStateNormal];
        isSelected = NO ;
    }

}

@end

******************************************************************************

ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

@end

******************************************************************************

ViewController.m

#import "ViewController.h"
#import "baseView.h"
// 获取设备屏幕的物理尺寸
#define kScreenHeight [UIScreen mainScreen].bounds.size.height
#define kScreenWidth [UIScreen mainScreen].bounds.size.width

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    NSArray *arr = @[@"你好",@"是的",@"不是的"];
    __block ViewController *this = self;
    baseView *baseV = [[baseView alloc]initWithFrame:CGRectMake(0, 44, kScreenWidth, 30) titleArr:arr];
    [baseV addBlock:^(UIButton *btn) {
        [this text:btn];
    }];
    [self.view addSubview:baseV];
    // Do any additional setup after loading the view, typically from a nib.
}

-(void)text : (UIButton*)btn
{
    //点击按钮执行的方法
    switch (btn.tag) {
        case 0:
        {
            NSLog(@"1111");
        }
            break;
        case 1:
        {
            NSLog(@"2222");

        }
            break;
        case 2:
        {
            NSLog(@"333");

        }

break;

        default:
            break;
    }

}

@end

******************************************************************************

效果图如下：