257 lines
9.6 KiB
Objective-C
257 lines
9.6 KiB
Objective-C
//
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// KBGuideVC.m
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// keyBoard
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//
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// Created by Mac on 2025/10/29.
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//
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#import "KBGuideVC.h"
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#import "KBGuideTopCell.h"
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#import "KBGuideKFCell.h"
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#import "KBGuideUserCell.h"
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typedef NS_ENUM(NSInteger, KBGuideItemType) {
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KBGuideItemTypeTop = 0, // 顶部固定卡片
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KBGuideItemTypeUser, // 我方消息
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KBGuideItemTypeKF // 客服回复
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};
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@interface KBGuideVC () <UITableViewDelegate, UITableViewDataSource, UITextFieldDelegate, UIGestureRecognizerDelegate>
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@property (nonatomic, strong) BaseTableView *tableView; // 列表（继承 BaseTableView）
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@property (nonatomic, strong) UIView *inputBar; // 底部输入容器
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@property (nonatomic, strong) UITextField *textField; // 输入框
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@property (nonatomic, strong) MASConstraint *inputBarBottom;// 输入栏底部约束
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@property (nonatomic, strong) UITapGestureRecognizer *bgTap;// 点击空白收起键盘
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@property (nonatomic, strong) NSMutableArray<NSDictionary *> *items; // 数据源 [{type, text}]
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@end
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@implementation KBGuideVC
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- (void)viewDidLoad {
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[super viewDidLoad];
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self.view.backgroundColor = [UIColor colorWithWhite:0.96 alpha:1.0];
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self.title = @"使用引导";
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[self.view addSubview:self.tableView];
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[self.view addSubview:self.inputBar];
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[self.inputBar addSubview:self.textField];
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[self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.left.right.equalTo(self.view);
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make.bottom.equalTo(self.inputBar.mas_top);
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}];
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[self.inputBar mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.right.equalTo(self.view);
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make.height.mas_equalTo(52);
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// 底部跟随键盘变化
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if (@available(iOS 11.0, *)) {
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self.inputBarBottom = make.bottom.equalTo(self.view.mas_safeAreaLayoutGuideBottom);
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} else {
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self.inputBarBottom = make.bottom.equalTo(self.view);
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}
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}];
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[self.textField mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.equalTo(self.inputBar).offset(12);
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make.right.equalTo(self.inputBar).offset(-12);
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make.centerY.equalTo(self.inputBar);
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make.height.mas_equalTo(36);
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}];
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// 初始只有固定 Top
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[self.items addObject:@{ @"type": @(KBGuideItemTypeTop), @"text": @"" }];
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[self.tableView reloadData];
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// 键盘监听
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(kb_keyboardWillChange:) name:UIKeyboardWillChangeFrameNotification object:nil];
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// 点击空白收起键盘（不干扰 cell 的点击/滚动）
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self.bgTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(kb_didTapBackground)];
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self.bgTap.cancelsTouchesInView = NO;
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self.bgTap.delegate = self;
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[self.tableView addGestureRecognizer:self.bgTap];
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}
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- (void)dealloc {
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)kb_didTapBackground {
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// 结束编辑，隐藏键盘
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[self.view endEditing:YES];
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}
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#pragma mark - Actions
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// 发送：回车发送一条消息，随后插入固定的客服回复
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- (BOOL)textFieldShouldReturn:(UITextField *)textField {
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NSString *text = [textField.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
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if (text.length == 0) { return NO; }
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// 1. 插入我方消息
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[self.items addObject:@{ @"type": @(KBGuideItemTypeUser), @"text": text ?: @"" }];
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// 2. 紧跟一条固定客服消息
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NSString *reply = @"🎉 如您遇到其他问题，可点击在线客服帮您解决~";
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[self.items addObject:@{ @"type": @(KBGuideItemTypeKF), @"text": reply }];
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// 刷新并滚动到底部
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[self.tableView reloadData];
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[self scrollToBottomAnimated:YES];
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textField.text = @"";
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return YES;
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}
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- (void)kb_keyboardWillChange:(NSNotification *)note {
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NSDictionary *info = note.userInfo;
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NSTimeInterval duration = [info[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
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UIViewAnimationOptions curve = ([info[UIKeyboardAnimationCurveUserInfoKey] integerValue] << 16);
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CGRect endFrame = [info[UIKeyboardFrameEndUserInfoKey] CGRectValue];
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CGFloat screenH = UIScreen.mainScreen.bounds.size.height;
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CGFloat kbHeight = MAX(0, screenH - endFrame.origin.y);
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CGFloat safeBtm = 0;
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if (@available(iOS 11.0, *)) { safeBtm = self.view.safeAreaInsets.bottom; }
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// 输入栏距离底部 = -max(kbHeight - 安全区, 0)
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CGFloat offset = -MAX(kbHeight - safeBtm, 0);
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self.inputBarBottom.offset = offset;
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[UIView animateWithDuration:duration delay:0 options:curve animations:^{
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[self.view layoutIfNeeded];
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// 留出输入栏高度的 contentInset，避免最后一行被遮挡
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UIEdgeInsets inset = self.tableView.contentInset;
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inset.bottom = 52 + MAX(kbHeight - safeBtm, 0);
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self.tableView.contentInset = inset;
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self.tableView.scrollIndicatorInsets = inset;
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} completion:^(BOOL finished) {
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[self scrollToBottomAnimated:YES];
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}];
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}
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- (void)scrollToBottomAnimated:(BOOL)animated {
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if (self.items.count == 0) return;
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NSInteger last = self.items.count - 1;
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NSIndexPath *ip = [NSIndexPath indexPathForRow:last inSection:0];
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if (last >= 0) {
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[self.tableView scrollToRowAtIndexPath:ip atScrollPosition:UITableViewScrollPositionBottom animated:animated];
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}
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}
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#pragma mark - UITableView
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
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return self.items.count;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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NSDictionary *it = self.items[indexPath.row];
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KBGuideItemType type = [it[@"type"] integerValue];
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NSString *text = it[@"text"] ?: @"";
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if (type == KBGuideItemTypeTop) {
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KBGuideTopCell *cell = [tableView dequeueReusableCellWithIdentifier:[KBGuideTopCell reuseId]];
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if (!cell) cell = [[KBGuideTopCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:[KBGuideTopCell reuseId]];
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return cell;
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} else if (type == KBGuideItemTypeUser) {
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KBGuideUserCell *cell = [tableView dequeueReusableCellWithIdentifier:[KBGuideUserCell reuseId]];
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if (!cell) cell = [[KBGuideUserCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:[KBGuideUserCell reuseId]];
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[cell configText:text];
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return cell;
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} else {
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KBGuideKFCell *cell = [tableView dequeueReusableCellWithIdentifier:[KBGuideKFCell reuseId]];
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if (!cell) cell = [[KBGuideKFCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:[KBGuideKFCell reuseId]];
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[cell configText:text];
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return cell;
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}
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}
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- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
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return UITableViewAutomaticDimension;
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}
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- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath {
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return 100;
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}
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#pragma mark - Lazy
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- (BaseTableView *)tableView {
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if (!_tableView) {
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_tableView = [[BaseTableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
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_tableView.delegate = self;
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_tableView.dataSource = self;
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_tableView.separatorStyle = UITableViewCellSeparatorStyleNone; // 无分割线
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_tableView.backgroundColor = [UIColor colorWithWhite:0.96 alpha:1.0];
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_tableView.rowHeight = UITableViewAutomaticDimension;
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_tableView.estimatedRowHeight = 120; // 开启自适应高度
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_tableView.contentInset = UIEdgeInsetsMake(0, 0, 52 + KB_SafeAreaBottom(), 0);
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_tableView.scrollIndicatorInsets = _tableView.contentInset;
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}
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return _tableView;
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}
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- (UIView *)inputBar {
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if (!_inputBar) {
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_inputBar = [UIView new];
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_inputBar.backgroundColor = [UIColor colorWithWhite:0.96 alpha:1.0];
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UIView *bg = [UIView new];
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bg.backgroundColor = [UIColor whiteColor];
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bg.layer.cornerRadius = 10; bg.layer.masksToBounds = YES;
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[_inputBar addSubview:bg];
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[bg mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.equalTo(_inputBar).offset(12);
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make.right.equalTo(_inputBar).offset(-12);
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make.top.equalTo(_inputBar).offset(8);
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make.bottom.equalTo(_inputBar).offset(-8);
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}];
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}
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return _inputBar;
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}
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- (UITextField *)textField {
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if (!_textField) {
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_textField = [UITextField new];
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_textField.delegate = self;
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_textField.returnKeyType = UIReturnKeySend; // 回车发送
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_textField.font = [UIFont systemFontOfSize:15];
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_textField.placeholder = @"在键盘粘贴对话后，选择回复方式";
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_textField.backgroundColor = [UIColor whiteColor];
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_textField.layer.cornerRadius = 10; _textField.layer.masksToBounds = YES;
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UIView *pad = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 36)];
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_textField.leftView = pad; _textField.leftViewMode = UITextFieldViewModeAlways;
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}
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return _textField;
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}
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- (NSMutableArray<NSDictionary *> *)items {
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if (!_items) { _items = @[].mutableCopy; }
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return _items;
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}
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#pragma mark - UIGestureRecognizerDelegate
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// 避免点到输入栏触发收起
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- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
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if (gestureRecognizer == self.bgTap) {
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if ([touch.view isDescendantOfView:self.inputBar]) {
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return NO;
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}
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}
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return YES;
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}
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// 与其它手势同时识别，避免影响表格滚动/选择
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- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
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return YES;
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}
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@end
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