iOS开发-QQ聊天布局实现(聊天机器人应用)

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原创最新推荐文章于 2026-05-20 09:47:56 发布 1.8k 阅读 AI 写同款· GEO 优化 ›

移动端H5输入框被软键盘顶飞的系统化解决方案在移动端Web开发中，视口（Viewport）是CSS布局和用户视觉交互的核心区域。其原理涉及布局视口与视觉视口的动态博弈，当软键盘弹起时，浏览器会通过收缩视口高度或平移视口位置来确保输入框可见，这一行为直接影响了基于视口单位（如vh）和固定定位（position: fixed）的布局稳定性，导致输入框被遮挡或页面布局错乱。该问题的技术价值在于，它深刻揭示了移动端浏览器视口管理、CSS布局流与原生输入法交互间的复杂关系，是构建高质量、强交互H5应用（如AI对话、在线客服、表单填写）必须攻克的核心体验难题。针阅读详情

今天和同学们讲一下QQ的聊天布局，以及如何实现一个聊天机器人，很多细节以及分类的处理！那么老规矩废话不多说上代码！

#pragma mark - 分类

// UIImage+ZZ.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import <UIKit/UIKit.h>

@interface UIImage (ZZ)

+ (UIImage *)resizableImage:(NSString *)name;

@end

// UIImage+ZZ.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "UIImage+ZZ.h"

@implementation UIImage (ZZ)

/**

* 返回一张可以随意拉伸不变形的图片

* @param name 图片名字

+ (UIImage *)resizableImage:(NSString *)name

{

UIImage *normal = [UIImage imageNamed:name];

CGFloat w = normal.size.width *0.5;

CGFloat h = normal.size.height *0.5;

return [normal resizableImageWithCapInsets:UIEdgeInsetsMake(h, w, h, w)];

}

@end

// NSString+ZZ.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import <Foundation/Foundation.h>

#import <UIKit/UIKit.h>

@interface NSString (ZZ)

/**

* 返回字符串所占用的尺寸

* @param font 字体

* @param maxSize 最大尺寸

- (CGSize)sizeWithFont:(UIFont *)font maxSize:(CGSize)maxSize;

@end

// NSString+ZZ.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "NSString+ZZ.h"

@implementation NSString (ZZ)

- (CGSize)sizeWithFont:(UIFont *)font maxSize:(CGSize)maxSize

{

NSDictionary *attrs = @{NSFontAttributeName : font};

return [self boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:attrs context:nil].size;

}

@end

#pragma mark - 模型model

// ZZMessage.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import <Foundation/Foundation.h>

typedef enum {

ZZMessageTypeMe = 0,//自己发的

ZZMessageTypeOther // 别人发的

} ZZMessageType;

#pragma mark - 那么我们先来根据plist解决模型的问题首先提供一个最基本的模型

@interface ZZMessage : NSObject

/**

* 聊天内容

@property (nonatomic,copy)NSString *text;

/**

* 发送时间

@property (nonatomic,copy)NSString *time;

/**

* 信息的类型

@property (nonatomic,assign)ZZMessageType type;

/**

* 是否隐藏时间

@property (nonatomic,assign)BOOL hideTime;

+ (instancetype)messageWithDict:(NSDictionary *)dict;

- (instancetype)initWithDict:(NSDictionary *)dict;

@end

// ZZMessage.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "ZZMessage.h"

@implementation ZZMessage

+ (instancetype)messageWithDict:(NSDictionary *)dict

{

return [[self alloc]initWithDict:dict];

}

- (instancetype)initWithDict:(NSDictionary *)dict

{

if (self = [super init]) {//直接通过kvc赋值

[self setValuesForKeysWithDictionary:dict];

}

return self;

}

@end

// ZZMessageFrame.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#pragma mark - 再提供一个ZZMessageFrame的模型内部承载ZZMessage模型

// 正文的字体

#define ZZTextFont [UIFont systemFontOfSize:15]

// 正文的内边距

#define ZZTextPadding 20

#import <Foundation/Foundation.h>

#import <UIKit/UIKit.h>

@class ZZMessage;

@interface ZZMessageFrame : NSObject

/**

* 头像的frame

@property (nonatomic,assign,readonly)CGRect iconF;

/**

* 时间的frame

@property (nonatomic,assign,readonly)CGRect timeF;

/**

* 正文的frame

@property (nonatomic,assign,readonly)CGRect textF;

/**

* cell的高度

@property (nonatomic,assign,readonly)CGFloat cellHeight;

/**

* 数据模型

@property (nonatomic,strong)ZZMessage *message;

@end

// ZZMessageFrame.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "ZZMessageFrame.h"

#import "ZZMessage.h"

#import "NSString+ZZ.h"

@implementation ZZMessageFrame

- (void)setMessage:(ZZMessage *)message

{

_message = message;

// 间距

CGFloat padding = 10;

// 屏幕的宽度

CGFloat screenW = [UIScreen mainScreen].bounds.size.width;

// 1.时间

if (message.hideTime == NO) {//显示时间

CGFloat timeX = 0;

CGFloat timeY = 0;

CGFloat timeW = screenW;

CGFloat timeH = 40;

_timeF = CGRectMake(timeX, timeY, timeW, timeH);

}

// 2.头像

CGFloat iconY = CGRectGetMaxY(_timeF) + padding;

CGFloat iconW = 40;

CGFloat iconH = 40;

CGFloat iconX;

if (message.type == ZZMessageTypeOther) {//别人发的

iconX = padding;

} else {//自己的发的

iconX = screenW - padding - iconW;

}

_iconF = CGRectMake(iconX, iconY, iconW, iconH);

// 3.正文

CGFloat textY = iconY;

// 文字计算的最大尺寸

CGSize textMaxSize = CGSizeMake(200,MAXFLOAT);

// 文字计算出来的真实尺寸(按钮内部label的尺寸)

CGSize textRealSize = [message.text sizeWithFont:ZZTextFont maxSize:textMaxSize];

// 按钮最终的真实尺寸

CGSize textBtnSize = CGSizeMake(textRealSize.width +ZZTextPadding *2, textRealSize.height +ZZTextPadding *2);

CGFloat textX;

if (message.type == ZZMessageTypeOther) {//别人发的

textX = CGRectGetMaxX(_iconF) + padding;

} else {//自己的发的

textX = iconX - padding - textBtnSize.width;

}

// _textF = CGRectMake(textX, textY, textSize.width + 40, textSize.height + 40);

_textF = (CGRect){{textX, textY}, textBtnSize};

// 4.cell的高度

CGFloat textMaxY = CGRectGetMaxY(_textF);

CGFloat iconMaxY = CGRectGetMaxY(_iconF);

_cellHeight = MAX(textMaxY, iconMaxY) + padding;

}

@end

#pragma mark - 自定义cell & view

// ZZInputView.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import <UIKit/UIKit.h>

@protocol ZZInputViewDelegate <NSObject>

@optional

- (void)inputViewDidSendMsg:(NSString *)msgStr;

@end

@interface ZZInputView : UIView

+ (instancetype)inputView;

@property (nonatomic, weak) id <ZZInputViewDelegate> delegate;

@end

// ZZInputView.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "ZZInputView.h"

#import "UIImage+ZZ.h"

@interface ZZInputView()<UITextFieldDelegate>

@property (nonatomic, weak) UIImageView *bgImg;

@property (nonatomic, weak) UIButton *voiceBtn;

@property (nonatomic, weak) UITextField *msgTf;

@property (nonatomic, weak) UIButton *smileBtn;

@property (nonatomic, weak) UIButton *addBtn;

@end

@implementation ZZInputView

+ (instancetype)inputView

{

return [[self alloc] init];

}

- (instancetype)initWithFrame:(CGRect)frame

{

if (self = [super initWithFrame:frame]) {

[self setUpSubViews];

}

return self;

}

- (instancetype)initWithCoder:(NSCoder *)decoder

{

if (self = [super initWithCoder:decoder]) {

[self setUpSubViews];

}

return self;

}

- (void)setUpSubViews

{

UIImageView *bgImg = [[UIImageView alloc] init];

bgImg.image = [UIImage resizableImage:@"chat_bottom_bg"];

[self addSubview:bgImg];

self.bgImg = bgImg;

UIButton *voiceBtn = [[UIButton alloc] init];

[voiceBtn setBackgroundImage:[UIImage imageNamed:@"chat_bottom_voice_nor"] forState:UIControlStateNormal];

[voiceBtn setBackgroundImage:[UIImage imageNamed:@"chat_bottom_voice_press"] forState:UIControlStateHighlighted];

[self addSubview:voiceBtn];

self.voiceBtn = voiceBtn;

UITextField *msgTf = [[UITextField alloc] init];

msgTf.delegate = self;

msgTf.borderStyle = UITextBorderStyleNone;

msgTf.background = [UIImage imageNamed:@"chat_bottom_textfield"];

msgTf.adjustsFontSizeToFitWidth = YES;

msgTf.returnKeyType = UIReturnKeySend;

msgTf.font = [UIFont systemFontOfSize:14.0f];

[self addSubview:msgTf];

self.msgTf = msgTf;

UIButton *smileBtn = [[UIButton alloc] init];

[smileBtn setBackgroundImage:[UIImage imageNamed:@"chat_bottom_smile_nor"] forState:UIControlStateNormal];

[smileBtn setBackgroundImage:[UIImage imageNamed:@"chat_bottom_smile_press"] forState:UIControlStateHighlighted];

[self addSubview:smileBtn];

self.smileBtn = smileBtn;

UIButton *addBtn = [[UIButton alloc] init];

[addBtn setBackgroundImage:[UIImage imageNamed:@"chat_bottom_up_nor"] forState:UIControlStateNormal];

[addBtn setBackgroundImage:[UIImage imageNamed:@"chat_bottom_up_press"] forState:UIControlStateHighlighted];

[self addSubview:addBtn];

self.addBtn = addBtn;

}

- (void)layoutSubviews

{

[super layoutSubviews];

CGFloat bgImgX = 0;

CGFloat bgImgY = 0;

CGFloat bgImgW = self.frame.size.width;

CGFloat bgImgH = 44;

self.bgImg.frame = CGRectMake(bgImgX, bgImgY, bgImgW, bgImgH);

CGFloat voiceBtnX = 5;

CGFloat voiceBtnY = bgImgY;

CGFloat voiceBtnW = bgImgH;

CGFloat voiceBtnH = bgImgH;

self.voiceBtn.frame = CGRectMake(voiceBtnX, voiceBtnY, voiceBtnW, voiceBtnH);

CGFloat msgTfX = voiceBtnX + bgImgH;

CGFloat msgTfY = 1;

CGFloat msgTfW = self.frame.size.width - 3 * (bgImgH + voiceBtnX) - voiceBtnX;

CGFloat msgTfH = bgImgH - msgTfY;

self.msgTf.frame = CGRectMake(msgTfX, msgTfY, msgTfW, msgTfH);

CGFloat smileBtnX = self.frame.size.width - 2 * (bgImgH + voiceBtnX);

CGFloat smileBtnY = bgImgY;

CGFloat smileBtnW = bgImgH;

CGFloat smileBtnH = bgImgH;

self.smileBtn.frame = CGRectMake(smileBtnX, smileBtnY, smileBtnW, smileBtnH);

CGFloat addBtnX = self.frame.size.width - (bgImgH + voiceBtnX);

CGFloat addBtnY = bgImgY;

CGFloat addBtnW = bgImgH;

CGFloat addBtnH = bgImgH;

self.addBtn.frame = CGRectMake(addBtnX, addBtnY, addBtnW, addBtnH);

}

#pragma mark - 文本框代理

/**

* 点击了return按钮(键盘最右下角的按钮)就会调用

- (BOOL)textFieldShouldReturn:(UITextField *)textField

{

// 1.通知代理

if ([self.delegate respondsToSelector:@selector(inputViewDidSendMsg:)]) {

[self.delegate inputViewDidSendMsg:textField.text];

}

// 2.清空文字

textField.text = nil;

// 返回YES即可

return YES;

}

@end

// ZZMessageCell.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#pragma mark - 这里写出自定义cell

#import <UIKit/UIKit.h>

@class ZZMessageFrame;

@interface ZZMessageCell : UITableViewCell

+ (instancetype)cellWithTableView:(UITableView *)tableView;

@property (nonatomic,strong)ZZMessageFrame *messageFrame;

@end

// ZZMessageCell.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "ZZMessageCell.h"

#import "ZZMessageFrame.h"

#import "ZZMessage.h"

#import "UIImage+ZZ.h"

@interface ZZMessageCell()

/**

* 时间

@property (nonatomic,weak) UILabel *timeView;

/**

* 头像

@property (nonatomic,weak) UIImageView *iconView;

/**

* 正文

@property (nonatomic,weak) UIButton *textView;

@end

@implementation ZZMessageCell

+ (instancetype)cellWithTableView:(UITableView *)tableView

{

static NSString *ID =@"message";

ZZMessageCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];

if (cell ==nil) {

cell = [[ZZMessageCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ID];

}

return cell;

}

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier

{

self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];

if (self) {

// 子控件的创建和初始化

// 1.时间

UILabel *timeView = [[UILabel alloc]init];

timeView.textAlignment = NSTextAlignmentCenter;

timeView.textColor = [UIColor grayColor];

timeView.font = [UIFont systemFontOfSize:13];

[self.contentView addSubview:timeView];

self.timeView = timeView;

// 2.头像

UIImageView *iconView = [[UIImageView alloc]init];

[self.contentView addSubview:iconView];

self.iconView = iconView;

// 3.正文

UIButton *textView = [[UIButton alloc]init];

textView.titleLabel.numberOfLines = 0;//自动换行

textView.titleLabel.font = ZZTextFont;

textView.contentEdgeInsets = UIEdgeInsetsMake(ZZTextPadding, ZZTextPadding, ZZTextPadding, ZZTextPadding);

[textView setTitleColor:[UIColor blackColor]forState:UIControlStateNormal];

[self.contentView addSubview:textView];

self.textView = textView;

// 4.设置cell的背景色

self.backgroundColor = [UIColor clearColor];

}

return self;

}

- (void)setMessageFrame:(ZZMessageFrame *)messageFrame

{

_messageFrame = messageFrame;

ZZMessage *message = messageFrame.message;

// 1.时间

self.timeView.text = message.time;

self.timeView.frame = messageFrame.timeF;

// 2.头像

NSString *icon = (message.type == ZZMessageTypeMe) ?@"me" :@"other";

self.iconView.image = [UIImage imageNamed:icon];

self.iconView.frame = messageFrame.iconF;

// 3.正文

[self.textView setTitle:message.text forState:UIControlStateNormal];

self.textView.frame = messageFrame.textF;

// 4.正文的背景

if (message.type == ZZMessageTypeMe) {//自己发的,蓝色

[self.textView setBackgroundImage:[UIImage resizableImage:@"chat_send_nor"] forState:UIControlStateNormal];

} else {//别人发的,白色

[self.textView setBackgroundImage:[UIImage resizableImage:@"chat_recive_nor"] forState:UIControlStateNormal];

}

@end

#pragma mark - controller

// ZZMessageController.h

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import <UIKit/UIKit.h>

@interface ZZMessageController : UIViewController

@end

// ZZMessageController.m

// 03-QQ聊天布局

// Created by 周昭 on 2017/3/14.

#import "ZZMessageController.h"

#import "ZZMessage.h"

#import "ZZMessageFrame.h"

#import "ZZMessageCell.h"

#import "ZZInputView.h"

@interface ZZMessageController ()<UITextFieldDelegate,UITableViewDelegate,UITableViewDataSource,ZZInputViewDelegate>

@property (nonatomic,strong) NSMutableArray *messageFrames;

@property (nonatomic,strong) NSDictionary *autoreply;

@property (nonatomic, weak) UITableView *tableView;

@property (nonatomic, weak) UITextField *inputView;

@end

@implementation ZZMessageController

- (void)viewDidLoad {

[super viewDidLoad];

// 1.表格的设置

[self setUpTableView];

// 2.监听键盘的通知

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];

// 3.底部的输入view

[self setUpInputView];

}

#pragma mark - setUp 初始化

/**

* 表格的设置

- (void)setUpTableView

{

UITableView *tableView = [[UITableView alloc] init];

tableView.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height - 44);

tableView.backgroundColor = [UIColor colorWithRed:235/255.0 green:235/255.0 blue:235/255.0 alpha:1.0];

tableView.separatorStyle = UITableViewCellSeparatorStyleNone; //去除分割线

tableView.allowsSelection = NO; //不允许选中

tableView.delegate = self;

tableView.dataSource = self;

[self.view addSubview:tableView];

self.tableView = tableView;

}

/**

* 底部的输入view

- (void)setUpInputView

{

ZZInputView *inputView = [ZZInputView inputView];

inputView.frame = CGRectMake(0, self.view.frame.size.height - 44, self.view.frame.size.width, 44);

inputView.delegate = self;

[self.view addSubview:inputView];

}

#pragma mark - ZZInputViewDelegate 方法

- (void)inputViewDidSendMsg:(NSString *)msgStr

{

// 1.自己发一条消息

[self addMessage:msgStr type:ZZMessageTypeMe];

// 2.自动回复一条消息

NSString *reply = [self replayWithText:msgStr];

[self addMessage:reply type:ZZMessageTypeOther];

}

/**

* 发送一条消息

- (void)addMessage:(NSString *)text type:(ZZMessageType)type

{

// 1.数据模型

ZZMessage *msg = [[ZZMessage alloc] init];

msg.type = type;

msg.text = text;

// 设置数据模型的时间

NSDate *now = [NSDate date];

NSDateFormatter *fmt = [[NSDateFormatter alloc]init];

fmt.dateFormat =@"HH:mm";

// NSDate ---> NSString

// NSString ---> NSDate

// fmt.dateFormat = @"yyyy-MM-dd HH:mm:ss";

// 2014-08-09 15:45:56

// 09/08/2014 15:45:56

msg.time = [fmt stringFromDate:now];

// 看是否需要隐藏时间

ZZMessageFrame *lastMf = [self.messageFrames lastObject];

ZZMessage *lastMsg = lastMf.message;

msg.hideTime = [msg.time isEqualToString:lastMsg.time];

// 2.frame模型

ZZMessageFrame *mf = [[ZZMessageFrame alloc] init];

mf.message = msg;

[self.messageFrames addObject:mf];

// 3.刷新表格

[self.tableView reloadData];

// 4.自动滚动表格到最后一行

NSIndexPath *lastPath = [NSIndexPath indexPathForRow:self.messageFrames.count - 1 inSection:0];

[self.tableView scrollToRowAtIndexPath:lastPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];

}

/**

* 根据自己发的内容取得自动回复的内容

* @param text 自己发的内容

- (NSString *)replayWithText:(NSString *)text

{

// for (int i = 0; i < text.length; i++) {

// NSString *word = [text substringWithRange:NSMakeRange(i,1)];

// if (self.autoreply[word]) return self.autoreply[word];

// }

if ([text isEqualToString:@"1"]) {

return @"110";

} else if ([text isEqualToString:@"2"]) {

return @"120";

} else if ([text isEqualToString:@"3"]) {

return @"911";

} else if ([text isEqualToString:@"4"]) {

return @"119";

} else

return@"滚蛋";

}

/**

* 当键盘改变了frame(位置和尺寸)的时候调用

- (void)keyboardWillChangeFrame:(NSNotification *)note

{

// 设置窗口的颜色

self.view.window.backgroundColor = self.tableView.backgroundColor;

// 0.取出键盘动画的时间

CGFloat duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey]doubleValue];

// 1.取得键盘最后的frame

CGRect keyboardFrame = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];

// 2.计算控制器的view需要平移的距离

CGFloat transformY = keyboardFrame.origin.y -self.view.frame.size.height;

// 3.执行动画

[UIView animateWithDuration:duration animations:^{

self.view.transform = CGAffineTransformMakeTranslation(0, transformY);

}];

}

UIKeyboardAnimationCurveUserInfoKey = 7; // 动画的执行节奏(速度)

UIKeyboardAnimationDurationUserInfoKey = "0.25"; // 键盘弹出\隐藏动画所需要的时间

UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {320, 216}}";

UIKeyboardCenterBeginUserInfoKey = "NSPoint: {160, 588}";

UIKeyboardCenterEndUserInfoKey = "NSPoint: {160, 372}";

UIKeyboardFrameChangedByUserInteraction = 0;

// 键盘弹出

UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 480}, {320, 216}}";//键盘刚出来那一刻的frame

UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, 264}, {320, 216}}"; // 键盘显示完毕后的frame

// 键盘隐藏

UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 264}, {320, 216}}";

UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, 480}, {320, 216}}";

- (BOOL)prefersStatusBarHidden

{

return YES;

}

- (NSDictionary *)autoreply

{

if (_autoreply ==nil) {

_autoreply = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"autoreply.plist" ofType:nil]];

}

return _autoreply;

}

- (NSMutableArray *)messageFrames

{

if (_messageFrames ==nil) {

NSArray *dictArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"messages.plist" ofType:nil]];

NSMutableArray *mfArray = [NSMutableArray array];

for (NSDictionary *dict in dictArray) {

// 消息模型

ZZMessage *msg = [ZZMessage messageWithDict:dict];

// 取出上一个模型

ZZMessageFrame *lastMf = [mfArray lastObject];

ZZMessage *lastMsg = lastMf.message;

// 判断两个消息的时间是否一致

msg.hideTime = [msg.time isEqualToString:lastMsg.time];

// frame模型

ZZMessageFrame *mf = [[ZZMessageFrame alloc] init];

mf.message = msg;

// 添加模型

[mfArray addObject:mf];

}

_messageFrames = mfArray;

}

return _messageFrames;

}

#pragma mark - 数据源方法

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

return self.messageFrames.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

// 1.创建cell

ZZMessageCell *cell = [ZZMessageCell cellWithTableView:tableView];

// 2.给cell传递模型

cell.messageFrame = self.messageFrames[indexPath.row];

// 3.返回cell

return cell;

}

#pragma mark - 代理方法

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

ZZMessageFrame *mf = self.messageFrames[indexPath.row];

return mf.cellHeight;

}

/**

* 当开始拖拽表格的时候就会调用

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView

{

// 退出键盘

[self.view endEditing:YES];

}

- (void)dealloc

{

[[NSNotificationCenter defaultCenter] removeObserver:self];

}

@end

收录于

iOS-自定义控件

iOS-MVC思想

iOS-项目实战展示

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#qq聊天布局 #聊天界面 #UITableView #聊天机器人 #自定义控件

ios-实现简单的聊天界面.zip 实现简单的QQ聊天界面代码分离以frame模型降低对系统的消耗用MJExtension解析数据提高代码的简洁程度立即下载

iOS开发-QQ聊天布局实现(聊天机器人应用)

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