下拉菜單

好久沒(méi)更新簡(jiǎn)書,花了幾個(gè)小時(shí)寫了個(gè)下拉菜單


Simulator Screen Shot - iPhone XR - 2019-01-18 at 15.18.11.png

Simulator Screen Shot - iPhone 7 - 2019-01-18 at 15.19.38.png

BoutiqueSelectedBtnView.h

#import <UIKit/UIKit.h>
#import "MenuTableView.h"

NS_ASSUME_NONNULL_BEGIN
/*
列表按鈕選擇
*/

typedef enum {
   AlertViewTypeNormol,
   AlertViewTypeDarck,
}AlertViewType;

@protocol BoutiqueSelectedBtnViewDelegate <NSObject>

@optional
- (void)BoutiqueSelectedBtnViewDelegateClick:(int)index;
- (void)BSBViewDidSelectedCellAndIndex:(int)index;
@end

@interface BoutiqueSelectedBtnView : UIView
@property (nonatomic, strong) NSArray *dataArray;
@property (nonatomic, assign) id<BoutiqueSelectedBtnViewDelegate>myDelage;
@property (nonatomic, strong) MenuTableView *menuView;
@property (nonatomic, strong) NSMutableArray *menuViewArray;
@property (nonatomic, assign) AlertViewType alertType;
- (instancetype)initWithFrame:(CGRect)frame andBtnArray:(NSArray *)array andAlertType:(AlertViewType)alertType;
- (void)setFond:(int)fond;
- (void)changeButtonStatus:(int)index andStatus:(BOOL)status;
@end

NS_ASSUME_NONNULL_END

BoutiqueSelectedBtnView.m

//
//  BoutiqueSelectedBtnView.m
//  XinLiJianKangJiaoYu
//
//  Created by 李文強(qiáng) on 2018/12/18.
//  Copyright ? 2018 sijiaokeji. All rights reserved.
//

#import "BoutiqueSelectedBtnView.h"
@implementation BoutiqueSelectedBtnView{
    UIButton *currentBtn;
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/
- (instancetype)initWithFrame:(CGRect)frame andBtnArray:(NSArray *)array andAlertType:(AlertViewType)alertType{
    if ([super initWithFrame:frame]) {
        _dataArray = array;
        self.alertType = alertType;
        [self initSubView];
        [self initOption];
        [self layout];
    }
    return self;
}
- (void)initOption{
    
}
- (void)initSubView{
    for (int i=0; i<_dataArray.count; i++) {
        CGFloat W = [UIScreen mainScreen].bounds.size.width/_dataArray.count;
        UIButton *btn =[UIButton buttonWithType:UIButtonTypeCustom];
        btn.frame = CGRectMake(i*W,0, W, self.frame.size.height);
        [btn setTitle:_dataArray[i] forState:UIControlStateNormal];
        btn.tag = 100+i;
        btn .titleLabel.font = [UIFont systemFontOfSize:15];
        [btn setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal];
        [btn addTarget:self action:@selector(minClick:) forControlEvents:UIControlEventTouchUpInside];
        [self addSubview:btn];
    }
    //index :當(dāng)前選擇的那個(gè)Index
    __block BoutiqueSelectedBtnView *my_self = self;
    self.menuView.block = ^(int index) {
        my_self->currentBtn.selected = NO;
        [my_self.menuView removeFromSuperview];
        [my_self.myDelage BSBViewDidSelectedCellAndIndex:index];
    };
}
- (void)layout{
    
}
- (void)setFond:(int)fond{
    for (int i=0; i<_dataArray.count; i++) {
        UIButton *btn = (UIButton *)[self viewWithTag:100+i];
        btn.titleLabel.font = [UIFont systemFontOfSize:fond];
    }
}
- (void)minClick:(UIButton *)sender{
    for (int i = 0; i<_dataArray.count; i++) {
        if (sender.tag == 100+i) {
            sender.selected = !sender.selected;
            currentBtn = sender;
        }else{
            UIButton *btn = (UIButton *)[self viewWithTag:100+i];
            btn.selected = NO;
        }
    }
    if (sender.selected == YES) {
        if (self.alertType == AlertViewTypeNormol) {
            //彈出白色的選擇框
            [_menuView removeFromSuperview];
            [[UIApplication sharedApplication].keyWindow.rootViewController.view addSubview:self.menuView];
            _menuView.frame = CGRectMake(0, self.frame.size.height+self.frame.origin.y, [UIScreen mainScreen].bounds.size.width, _menuViewArray.count*40+250);
            _menuView.backgroundColor = [UIColor whiteColor];
        }else{
            //彈出暗色的選擇框
            _menuView.backgroundColor = [UIColor darkGrayColor];
        }
    }else{
        [_menuView removeFromSuperview];
    }
    [self.myDelage BoutiqueSelectedBtnViewDelegateClick:(int)sender.tag-100];
}
- (void)setMenuViewArray:(NSMutableArray *)menuViewArray{
    _menuView.menuArray = menuViewArray;
    _menuView.frame = CGRectMake(0, self.frame.size.height+self.frame.origin.y, [UIScreen mainScreen].bounds.size.width, menuViewArray.count*40);
    [_menuView reloadData];
}
- (void)drawRect:(CGRect)rect{
    UIBezierPath *path = [[UIBezierPath alloc]init];
    [path moveToPoint:CGPointMake(0, 0)];
    [path addLineToPoint:CGPointMake([UIScreen mainScreen].bounds.size.width, 0)];
    [[UIColor lightGrayColor] setStroke];
    [path stroke];
    
    UIBezierPath *path1 = [[UIBezierPath alloc]init];
    [path1 moveToPoint:CGPointMake(0, self.frame.size.height-2)];
    [path1 addLineToPoint:CGPointMake([UIScreen mainScreen].bounds.size.width, self.frame.size.height-2)];
    [[UIColor lightGrayColor] setStroke];
    [path1 stroke];
}
- (void)changeButtonStatus:(int)index andStatus:(BOOL)status{
        UIButton *btn = (UIButton *)[self viewWithTag:100+index];
        btn.selected = NO;
}
- (MenuTableView *)menuView{
    if (!_menuView) {
        MenuTableView *view = [[MenuTableView alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 250) style:UITableViewStyleGrouped];
        view.frame = CGRectMake(0,0, [UIScreen mainScreen].bounds.size.width, 120);
        view.selected = NO;
        _menuView = view;
    }
    return _menuView;
}
@end

MenuTableView.h

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN
typedef void(^MenuConfirmBlock)(int index);
@interface MenuTableView : UITableView<UITableViewDelegate,UITableViewDataSource>
@property (nonatomic, strong) NSArray *menuArray;
@property (nonatomic, strong) MenuConfirmBlock block;
@property (nonatomic, assign) BOOL selected;
@end

NS_ASSUME_NONNULL_END

MenuTableView.m

//
//  MenuTableView.m
//  XinLiJianKangJiaoYu
//
//  Created by 李文強(qiáng) on 2018/12/13.
//  Copyright ? 2018 sijiaokeji. All rights reserved.
//

#import "MenuTableView.h"

@implementation MenuTableView{
}

/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
    // Drawing code
}
*/
- (instancetype)initWithFrame:(CGRect)frame style:(UITableViewStyle)style{
    if ([super initWithFrame:frame style:style]) {
        [self initSubView];
        [self initOption];
        [self layout];
    }
    return self;
}
- (void)initSubView{
}
- (void)initOption{
    [self registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"];
    self.delegate = self;
    self.dataSource = self;
}
- (void)layout{
    
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return _menuArray.count;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return 40;
}
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    return 0;
}
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    UIView *view = [UIView new];
    view.frame = CGRectMake(0, 0, 0, 0);
    return view;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
    }
    cell.backgroundColor = [UIColor clearColor];
    cell.textLabel.text = _menuArray[indexPath.row];
    cell.textLabel.textAlignment = 1;
    if (self.backgroundColor == [UIColor darkGrayColor]) {
        cell.textLabel.textColor = [UIColor whiteColor];
    }else{
        cell.textLabel.textColor = [UIColor darkGrayColor];
    }
    return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    self.block((int)indexPath.row);
}
@end

使用

#import "ViewController.h"
#import "BoutiqueSelectedBtnView.h"

@interface ViewController ()<BoutiqueSelectedBtnViewDelegate>
@property (nonatomic, strong) BoutiqueSelectedBtnView *buttonView;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    // Do any additional setup after loading the view, typically from a nib.
    [self.view addSubview:self.buttonView];
}
- (void)BSBViewDidSelectedCellAndIndex:(int)index{
    
}
- (void)BoutiqueSelectedBtnViewDelegateClick:(int)index{
    switch (index) {
        case 0:
        {
            _buttonView.menuViewArray =[[NSMutableArray alloc] initWithArray:@[@"收費(fèi)1",@"收費(fèi)2",@"收費(fèi)3",@"收費(fèi)4"]];
        }
            break;
        case 1:
        {
            _buttonView.menuViewArray =[[NSMutableArray alloc] initWithArray:@[@"收費(fèi)1",@"收費(fèi)2",@"收費(fèi)3",@"收費(fèi)4"]];
        }
            break;
        case 2:
        {
            _buttonView.menuViewArray =[[NSMutableArray alloc] initWithArray:@[@"Type1",@"Type2",@"Type3",@"Type4"]];
        }
            break;
        default:
            break;
    }
}
#pragma mark - ButtonView
- (BoutiqueSelectedBtnView *)buttonView{
    if (!_buttonView) {
        BoutiqueSelectedBtnView *btn = [[BoutiqueSelectedBtnView alloc]initWithFrame:CGRectMake(0,[UIApplication sharedApplication].statusBarFrame.size.height, [UIScreen mainScreen].bounds.size.width, 30) andBtnArray:@[@"年級(jí)",@"收費(fèi)",@"類型"] andAlertType:AlertViewTypeNormol];
        btn.myDelage = self;
        btn.backgroundColor = [UIColor whiteColor];
        _buttonView = btn;
    }
    return _buttonView;
}
最后編輯于 ：
?著作權(quán)歸作者所有,轉(zhuǎn)載或內(nèi)容合作請(qǐng)聯(lián)系作者
【社區(qū)內(nèi)容提示】社區(qū)部分內(nèi)容疑似由AI輔助生成，瀏覽時(shí)請(qǐng)結(jié)合常識(shí)與多方信息審慎甄別。
平臺(tái)聲明：文章內(nèi)容（如有圖片或視頻亦包括在內(nèi)）由作者上傳并發(fā)布，文章內(nèi)容僅代表作者本人觀點(diǎn)，簡(jiǎn)書系信息發(fā)布平臺(tái)，僅提供信息存儲(chǔ)服務(wù)。

友情鏈接更多精彩內(nèi)容