仿QQ布局实例

仿QQ布局实例

- (UIImageView*)iconImageView

{
    if (_iconImageView== nil) {
        _iconImageView = [[UIImageViewalloc]init];
        [self.contentViewaddSubview:_iconImageView];
    }
    return _iconImageView;
}

- (UILabel*)timerLabel
{
    if (_timerLabel== nil) {
        _timerLabel = [[UILabelalloc]init];
        _timerLabel.textAlignment= NSTextAlignmentCenter;
        _timerLabel.font= [UIFontsystemFontOfSize:13.0];
        [self.contentViewaddSubview:_timerLabel];
    }
    return _timerLabel;
}

- (UIButton*)textBtn
{
    if (_textBtn== nil) {
        _textBtn = [[UIButtonalloc]init];
        _textBtn.titleLabel.numberOfLines= 0;
        _textBtn.titleLabel.font= [UIFontsystemFontOfSize:13.0];
        [self.contentViewaddSubview:_textBtn];
    }
    return _textBtn;
}

- (void)setQqInfo:(SUNQQInfo*)qqInfo
{
    _qqInfo = qqInfo;
   
    // 设置时间
    self.timerLabel.text= qqInfo.time;
    CGFloat timerW = [UIScreenmainScreen].bounds.size.width;
    self.timerLabel.frame= CGRectMake(0,0, timerW,35);
   
    // 设置头像
    if (qqInfo.type) {
        CGFloat imageX =kMargin;
        CGFloat imageY =CGRectGetMaxY(self.timerLabel.frame) + kMargin;
        self.iconImageView.frame= CGRectMake(imageX, imageY,kIconW,kIconH);
        self.iconImageView.image= [UIImageimageNamed:@"other"];
    }else{
        CGFloat X = [UIScreenmainScreen].bounds.size.width- kMargin -kIconW;
        CGFloat Y =CGRectGetMaxY(self.timerLabel.frame) + 10;
        self.iconImageView.frame= CGRectMake(X, Y,kIconW,kIconH);
        self.iconImageView.image= [UIImageimageNamed:@"me"];
       
    }

    // 设置文字
    NSDictionary *dict =@{NSFontAttributeName: [UIFontsystemFontOfSize:13.0]};
    CGRect frameText = [qqInfo.textboundingRectWithSize:CGSizeMake(150,MAXFLOAT)options:NSStringDrawingUsesLineFragmentOriginattributes:dictcontext:nil];
    [self.textBtnsetTitle:qqInfo.textforState:UIControlStateNormal];
    self.textBtn.contentEdgeInsets= UIEdgeInsetsMake(20,20,20,20);
    CGFloat textY =CGRectGetMaxY(self.timerLabel.frame) + 10;
    CGFloat textW = frameText.size.width+ 40;
    CGFloat textH = frameText.size.height+ 40;
    CGFloat textX;
    if (qqInfo.type) {
        textX = CGRectGetMaxX(self.iconImageView.frame) + 10;
    }else{
        textX = [UIScreenmainScreen].bounds.size.width- 2*kMargin- kIconW - textW;
    }
    self.textBtn.frame= CGRectMake(textX, textY, textW, textH);
   
    // 设置行高
    CGFloat maxH =MAX(CGRectGetMaxY(self.iconImageView.frame),CGRectGetMaxY(self.textBtn.frame));
    self.cellHight= maxH + kMargin;
   
   
    // 设置聊天背景
    if (qqInfo.type) {
        UIImage *image = [UIImageimageNamed:@"chat_recive_nor"];
        UIImage *image1 = [imagestretchableImageWithLeftCapWidth:30 topCapHeight:30];
        [self.textBtnsetBackgroundImage:image1forState:UIControlStateNormal];
        [self.textBtnsetTitleColor:[UIColorblackColor]forState:UIControlStateNormal];
    }else{
        UIImage *image = [UIImageimageNamed:@"chat_send_nor"];
        UIImage *image1 = [imagestretchableImageWithLeftCapWidth:30topCapHeight:30];
        [self.textBtnsetBackgroundImage:image1forState:UIControlStateNormal];
        [self.textBtnsetTitleColor:[UIColorwhiteColor]forState:UIControlStateNormal];
    }
}

- (void)viewDidLoad
{
    [superviewDidLoad];
NSLog(@"%@",self.qqs);
    self.tableView.dataSource= self;
    self.tableView.delegate= self;
    // 去除分割线
    self.tableView.separatorStyle= UITableViewCellSeparatorStyleNone;
    // 设置背景图片
    self.tableView.backgroundColor= [UIColorcolorWithRed:224/255.0green:224/255.0blue:224/255.0alpha:1.0];
    // 界面不允许被点击
    self.tableView.allowsSelection= NO;
   
    // 监听键盘的通知
    [[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWillChangeFrame:)name:UIKeyboardWillChangeFrameNotificationobject:nil];
   
    // 处理文本输入框
    self.inputView.leftView= [[UITextFieldalloc]initWithFrame:CGRectMake(0,0,5,0)];
    self.inputView.leftViewMode= UITextFieldViewModeAlways;
    self.inputView.delegate= self;
}

- (void)keyboardWillChangeFrame:(NSNotification*)noti
{
    /**
     UIKeyboardFrameBeginUserInfoKey = NSRect: {{0, 480}, {320, 216}};
     UIKeyboardCenterBeginUserInfoKey = NSPoint: {160, 588};
     UIKeyboardFrameEndUserInfoKey = NSRect: {{0, 264}, {320, 216}};
     UIKeyboardCenterEndUserInfoKey = NSPoint: {160, 372};
     UIKeyboardAnimationDurationUserInfoKey = 0.25;
     UIKeyboardFrameChangedByUserInteraction = 0;
     UIKeyboardBoundsUserInfoKey = NSRect: {{0, 0}, {320, 216}};
     UIKeyboardAnimationCurveUserInfoKey = 7;
     }
     */
   
    NSLog(@"%@",noti.userInfo);
    // 设置窗口的颜色
    self.view.window.backgroundColor= self.tableView.backgroundColor;
   
    // 取出键盘动画的时间
    CGFloat duration= [noti.userInfo[UIKeyboardAnimationDurationUserInfoKey]doubleValue];
   
    // 取得键盘最后的frame
    CGRect keyboardFrame = [noti.userInfo[UIKeyboardFrameEndUserInfoKey]CGRectValue];
   
    // 计算控制器移动的距离
    CGFloat tansformY = keyboardFrame.origin.y- self.view.frame.size.height;
   
    // 执行动画
    [UIViewanimateWithDuration:durationanimations:^{
        self.view.transform= CGAffineTransformMakeTranslation(0, tansformY);
    }];
}

- (void)scrollViewWillBeginDecelerating:(UIScrollView*)scrollView
{
    // 关闭键盘
    [self.viewendEditing:YES];
}

- (void)dealloc
{
    [[NSNotificationCenterdefaultCenter]removeObserver:self];
}

- (void)didReceiveMemoryWarning
{
    [superdidReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

//设置状态栏的可见性
- (BOOL)prefersStatusBarHidden
{
    return YES;
}

#pragma mark -实现代理的方法
- (CGFloat)tableView:(UITableView*)tableView heightForRowAtIndexPath:(NSIndexPath*)indexPath
{
    SUNQQView *qqView = [[SUNQQViewalloc]init];
    qqView.qqInfo=  self.qqs[indexPath.row];
    return qqView.cellHight;
}

- (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
    static NSString *ID =@"cell";
    SUNQQView *cell = [tableViewdequeueReusableCellWithIdentifier:ID];
    if (cell ==nil) {
        cell = [[SUNQQViewalloc]initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:ID];
    }
    // 取出数据
    cell.qqInfo= self.qqs[indexPath.row];
    cell.backgroundColor= [UIColorclearColor];
   
    return cell;
}

- (NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.qqs.count;
}

- (BOOL)textFieldShouldReturn:(UITextField*)textField
{
    NSLog(@"%@",textField);
    // 添加模型
    SUNQQInfo *qqInfo = [[SUNQQInfoalloc]init];
    qqInfo.type= 0;
    qqInfo.time= @"11:23";
    qqInfo.text= textField.text;
    [self.qqsaddObject:qqInfo];
   
    // 刷新表格
    [self.tableViewreloadData];
   
    // 自动滚动到最后一行
    NSIndexPath *path = [NSIndexPathindexPathForRow:self.qqs.count- 1 inSection:0];
    [self.tableViewscrollToRowAtIndexPath:pathatScrollPosition:UITableViewScrollPositionBottomanimated:YES];
   
    // 清除文本框上的文字
    self.inputView.text= nil;
    return YES;
}