//
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// PBDropdownMenu.m
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// IphoneBIMe
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//
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// Created by zjf on 2018/8/8.
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// Copyright © 2018年 ProBIM. All rights reserved.
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//
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#import "PBDropdownMenu.h"
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#import "PBIssueNavModel.h"
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#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
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#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height
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#define AnimateTime 0.25f // 下拉动画时间
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@interface PBDropdownMenu()<UIGestureRecognizerDelegate>
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@property (nonatomic, strong) UIView *backgroundView;//背景视图
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@property (nonatomic, strong) UITableView *tableView;//选择列表
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@property (nonatomic, assign) BOOL isShow;//标识是否是弹出状态
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@property (nonatomic, strong) NSMutableArray *selectIndexArr;//标识是否是弹出状态
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@property (nonatomic, assign) NSInteger currentSelectIndex;//标识是否是弹出状态
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@property (nonatomic, strong) NSMutableArray *buttonArr;//标识是否是弹出状态
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@end
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@implementation PBDropdownMenu {
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CGFloat _rowHeight; // 下拉列表行高
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NSArray *_titleArr;
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}
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- (void)setBtnTitle:(NSString *)title {
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UIButton *clickBtn = self.buttonArr[self.currentSelectIndex];
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[clickBtn setTitle:title forState:UIControlStateNormal];
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CGFloat imageWidth = clickBtn.imageView.bounds.size.width;
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CGFloat labelWidth = clickBtn.titleLabel.bounds.size.width;
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clickBtn.imageEdgeInsets = UIEdgeInsetsMake(0, labelWidth, 0, -labelWidth);
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clickBtn.titleEdgeInsets = UIEdgeInsetsMake(0, -imageWidth, 0, imageWidth);
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}
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- (instancetype)initWithFrame:(CGRect)frame andArr:(NSArray *)arr {
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if (self = [super initWithFrame:frame]) {
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_titleArr = arr;
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[self creatMenuListWithArr:arr];
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}
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return self;
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}
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- (void)creatMenuListWithArr:(NSArray *)arr {
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_rowHeight = 40.f;
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CGFloat meunWidth = self.width / arr.count;
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for (NSInteger i = 0; i < arr.count; i++) {
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UIButton *clickBtn = [[UIButton alloc] init];
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clickBtn.backgroundColor = [UIColor z_colorWithR:242 G:242 B:242];
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[clickBtn setFrame:CGRectMake(meunWidth * i, 0, meunWidth, self.height)];
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clickBtn.titleLabel.font = [UIFont systemFontOfSize:TitleFontSize];
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[clickBtn setTitleColor:TitleColor forState:UIControlStateNormal];
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PBIssueNavModel *issueNavModel = arr[i][0];
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[clickBtn setImage:[UIImage imageNamed:@"Issue_ retrieve_default"] forState:UIControlStateNormal];
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[clickBtn setTitle:issueNavModel.ItemName forState:UIControlStateNormal];
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CGFloat imageWidth = clickBtn.imageView.bounds.size.width;
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CGFloat labelWidth = clickBtn.titleLabel.bounds.size.width;
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clickBtn.imageEdgeInsets = UIEdgeInsetsMake(0, labelWidth, 0, -labelWidth);
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clickBtn.titleEdgeInsets = UIEdgeInsetsMake(0, -imageWidth, 0, imageWidth);
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clickBtn.selected = NO;
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[clickBtn addTarget:self action:@selector(clickMainBtn:) forControlEvents:UIControlEventTouchUpInside];
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clickBtn.tag = 100 + i;
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[self.buttonArr addObject:clickBtn];
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[self addSubview:clickBtn];
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}
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}
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#pragma mark - 点击方法
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- (void)clickMainBtn:(UIButton *)button{
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if (_currentSelectIndex == (button.tag - 100)) {
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if (_isShow) {
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[self hideDropDown];
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}else {
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[self showDropDown];
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}
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}else {
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if (_isShow) {
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[self hideDropDown];
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}else {
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self.currentSelectIndex = button.tag - 100;
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[self showDropDown];
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}
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}
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}
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#pragma mark - 显示下拉列表
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- (void)showDropDown {
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[self.superview addSubview:self.backgroundView];
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[self.backgroundView addSubview:self.tableView];
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UIButton *clickBtn = self.buttonArr[self.currentSelectIndex];
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[UIView animateWithDuration:AnimateTime animations:^{
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clickBtn.imageView.transform = CGAffineTransformMakeRotation(M_PI);
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NSArray *titles = self->_titleArr[self.currentSelectIndex];
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CGFloat tableViewH = self->_rowHeight * titles.count;
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if (tableViewH > self->_rowHeight * 4) {
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tableViewH = self->_rowHeight * 4;
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}
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self->_tableView.frame = CGRectMake(0, 0, SCREEN_WIDTH, tableViewH);
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self.backgroundView.backgroundColor = [UIColor colorWithWhite:0 alpha:0.3];
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}completion:^(BOOL finished) {
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self->_isShow = YES;
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}];
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[clickBtn setTitleColor:WarningColor forState:UIControlStateNormal];
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[clickBtn setImage:[UIImage imageNamed:@"Issue_ retrieve_show"] forState:UIControlStateNormal];
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}
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#pragma mark - 隐藏下拉列表
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- (void)hideDropDown{
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UIButton *clickBtn = self.buttonArr[self.currentSelectIndex];
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[UIView animateWithDuration:AnimateTime animations:^{
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clickBtn.imageView.transform = CGAffineTransformIdentity;
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self.backgroundView.backgroundColor = [UIColor colorWithWhite:0 alpha:0];
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self->_tableView.frame = CGRectMake(0, 0, SCREEN_WIDTH, 0);
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}completion:^(BOOL finished) {
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[self.backgroundView removeFromSuperview];
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[self.tableView removeFromSuperview];
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self->_isShow = NO;
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}];
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[clickBtn setTitleColor:TitleColor forState:UIControlStateNormal];
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[clickBtn setImage:[UIImage imageNamed:@"Issue_ retrieve_default"] forState:UIControlStateNormal];
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}
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#pragma mark - UITableView Delegate
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-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
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return _rowHeight;
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}
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
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NSArray *titles = _titleArr[self.currentSelectIndex];
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return titles.count;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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static NSString *CellIdentifier = @"Cell";
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NSArray *titles = _titleArr[self.currentSelectIndex];
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NSInteger selectIndex = [self.selectIndexArr[self.currentSelectIndex] integerValue];
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UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
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if (cell == nil) {
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//---------------------------下拉选项样式，可在此处自定义-------------------------
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cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
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cell.textLabel.font = [UIFont systemFontOfSize:16.f];
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// cell.textLabel.textColor = [UIColor blackColor];
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// cell.selectionStyle = UITableViewCellSelectionStyleNone;
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//---------------------------------------------------------------------------
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}
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if (selectIndex == indexPath.row) {
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cell.textLabel.textColor = WarningColor;
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cell.selectionStyle = UITableViewCellSelectionStyleBlue;
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}else {
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cell.textLabel.textColor = TitleColor;
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cell.selectionStyle = UITableViewCellSelectionStyleNone;
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}
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PBIssueNavModel *issueNavModel = titles[indexPath.row];
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cell.textLabel.text = issueNavModel.ItemName;
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return cell;
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}
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
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self.selectIndexArr[self.currentSelectIndex] = [NSNumber numberWithInteger:indexPath.row];
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NSArray *titles = _titleArr[self.currentSelectIndex];
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PBIssueNavModel *issueNavModel = titles[indexPath.row];
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[self setBtnTitle:issueNavModel.ItemName];
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if ([self.delegate respondsToSelector:@selector(dropdownMenu:selectedCellNumber:)]) {
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[self.delegate dropdownMenu:self.buttonArr[self.currentSelectIndex] selectedCellNumber:indexPath.row];
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}
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[self hideDropDown];
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}
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- (UIView *)backgroundView {
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if (_backgroundView == nil) {
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_backgroundView = [[UIView alloc] initWithFrame:CGRectMake(0 , self.y + self.height, SCREEN_WIDTH, SCREEN_HEIGHT - self.y - self.height)];
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_backgroundView.backgroundColor = [UIColor colorWithWhite:0 alpha:0];
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[_backgroundView setOpaque:NO];
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UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(backTapped:)];
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tap.delegate = self;
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[_backgroundView addGestureRecognizer:tap];
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}
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return _backgroundView;
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}
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- (void)backTapped:(UITapGestureRecognizer *)sender {
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[self hideDropDown];
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}
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- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
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if ([NSStringFromClass([touch.view class]) isEqualToString:@"UITableViewCellContentView"]) {
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return NO;
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} else {
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return YES;
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}
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}
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- (UITableView *)tableView {
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_tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0,SCREEN_WIDTH,0)];
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_tableView.delegate = self;
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_tableView.dataSource = self;
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_tableView.bounces = NO;
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return _tableView;
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}
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- (NSMutableArray *)selectIndexArr {
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if (_selectIndexArr == nil) {
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_selectIndexArr = [[NSMutableArray alloc] init];
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for (NSInteger i = 0; i < _titleArr.count; i++) {
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[_selectIndexArr addObject:[NSNumber numberWithInteger:0]];
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}
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}
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return _selectIndexArr;
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}
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- (NSMutableArray *)buttonArr {
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if (_buttonArr == nil) {
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_buttonArr = [[NSMutableArray alloc] init];
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}
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return _buttonArr;
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}
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@end
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