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[操作系统]XMPP键盘订制实现图文混排


  在现阶段的通信服务中,各种标准都有,因此会出现无法实现相互连通,而XMPP(Extensible Message and presence Protocol)协议的出现,实现了整个及时通信服务协议的互通。有了这个协议之后,使用任何一个组织或者个人提供的即使通信服务,都能够无障碍的与其他的及时通信服务的用户进行交流。例如google 公司2005年推出的Google talk就是一款基于XMPP协议的即时通信软件。在前面的系列博文中,我们介绍了XMPP的详细使用(查看系列文章:http://www.cnblogs.com/jerehedu/p/4607599.html#xmpp),下面我们就谈论一下如何简单的使用XMPP的键盘订制:

  1、首先增加键盘的自定义小图标和弹出效果

  效果图如下:

#pragma mark - 排列按钮- (void) setUpSubviews{    //1 初始化图片名称  NSArray* array=@[@"compose_camerabutton_background_os7",@"compose_toolbar_picture_os7",@"compose_mentionbutton_background_os7",@"compose_trendbutton_background_os7",@"compose_emoticonbutton_background_os7"];    //2 排列按钮  CGFloat space=(kWidth-kMargin*2-kItemNum*kItemWidth)/(kItemNum-1)+kItemWidth;    for (int i=0; i<kItemNum; i++) {        UIButton * button=[UIButton buttonWithType:UIButtonTypeCustom];    button.tag=i;    button.frame=CGRectMake(kMargin+i*space, self.frame.size.height/2.0-kItemHeight/2.0, kItemWidth, kItemHeight);    //    button.backgroundColor=JRRandomColor();    [button setBackgroundImage:[UIImage imageNamed:array[i]] forState:UIControlStateNormal];        //Actions 按钮事件    [button addTarget:self action:@selector(btClick:) forControlEvents:UIControlEventTouchUpInside];    [self addSubview:button];  } }/增加键盘事件弹出通知监控  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyUp:) name:UIKeyboardWillShowNotification object:nil];    //增加键盘事件消失通知监控[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyDown:) name:UIKeyboardWillHideNotification object:nil];#pragma mark - 键盘升起来- (void) keyUp:(NSNotification *) notification{    //获取动画的时间  CGFloat animaTime=[notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];    //获取键盘的尺寸(用来确定动画的范围)  CGRect frame=[notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];    //控制键盘动画  [UIView animateWithDuration:animaTime animations:^{    self.keyAccess.transform=CGAffineTransformMakeTranslation(0, frame.size.height*-1);  }];      }#pragma mark - 键盘落下去- (void) keyDown:(NSNotification *) notification{    //获取动画的时间  CGFloat animaTime=[notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];    [UIView animateWithDuration:animaTime animations:^{    self.keyAccess.transform=CGAffineTransformIdentity;  }];  }

  2、定义自定义键盘的图标

  表情主要分为三块默认,Emoji,浪小花,默认和浪小花为图标,而Emoji为字符,因此我们需要进行特殊处理。效果图如下:

  代码如下:

  1、我们首先自定义键盘视图,同时我们需要把表情抽取出来因此还需要自定义一个滚动表情视图

 //增加滚动表情    [self setUpSrollEmotion];        //增加自定义的tab    [self setUpTab];        //设置默认第一个    if (self.btArray.count>1) {      [self clickBt:self.btArray[1]];      self.emotionScroll.emotionArray=self.defaultArray;    }else{      [self clickBt:[self.btArray firstObject]];    }pragma mark - 自定义键盘布局#pragma mark 设置滚动表情- (void) setUpSrollEmotion{  JRScrollEmotion * scroll=[[JRScrollEmotion alloc] initWithFrame:CGRectMake(0, 0, kWidth, self.frame.size.height-44)];  self.emotionScroll=scroll;    scroll.emotionArray=nil;  [self addSubview:scroll];    }#pragma mark 增加tab- (void) setUpTab{    UIView * bgview=[[UIView alloc] initWithFrame:CGRectMake(0, self.frame.size.height-44, kWidth, 44)];  bgview.backgroundColor=JRColor(109, 109, 109);  [self addSubview:bgview];    //计算按钮宽度  CGFloat width=kWidth/4.0;  //标题数组  NSArray * array=@[@"最近",@"默认",@"Emoji",@"浪小花"];    for (int i=0 ; i<4; i++) {    UIButton * button=[[UIButton alloc] initWithFrame:CGRectMake(i*width, 0, width, 44)];    button.tag=i;    [button setTitle:array[i] forState:UIControlStateNormal];    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];    [button addTarget:self action:@selector(clickBt:) forControlEvents:UIControlEventTouchUpInside];    [self.btArray addObject:button];    [bgview addSubview:button];      }    }

  2、第二步我们需要进行对表情进行循环布局,每个表情作为一个button,我们进行循环摆放

-(void)setEmotionArray:(NSArray *)emotionArray{  _emotionArray=emotionArray;    //移除所有button  [self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];    //计算总页数  NSInteger totalPage=ceil(self.emotionArray.count/23.0);  self.contentSize=CGSizeMake(totalPage*kWidth, 0);  CGFloat hspace=(kWidth-40-8*35)/7.0+35;  CGFloat vspace=(self.frame.size.height-20-3*35)/2.0+35;    for (int i=0; i<self.emotionArray.count; i++) {    NSInteger nowPage=[self getNowPageWith:i];        NSInteger col=(i-nowPage*23)%8;    NSInteger row=(i-nowPage*23)/8;        UIButton *button=[[UIButton alloc ] initWithFrame:CGRectMake(nowPage*kWidth+20+col*hspace, 10+row*vspace, 35, 35)];            //根据表类型设置图片    JREmotionModel * model=self.emotionArray[i];        if (model.imageName==nil) {//emoji表情      [button setTitle:model.emoji forState:UIControlStateNormal];      button.titleLabel.font=[UIFont systemFontOfSize:35];    }else{     [button setImage:[UIImage imageNamed:model.imageName] forState:UIControlStateNormal];    }        //监控点击事件    button.tag=i;    [button addTarget:self action:@selector(emotionClick:) forControlEvents:UIControlEventTouchUpInside];    [self addSubview:button];      }        for (int i=0; i<totalPage; i++) {        //增加删除按钮    UIButton *button= [UIButton buttonWithType:UIButtonTypeCustom];        if (i<totalPage-1) {      button.frame=CGRectMake(kWidth-35-20+i*kWidth, vspace*2+10, 35, 35);    }else{      //获取剩下的个数      NSInteger numLeft= self.emotionArray.count-i*23;      NSInteger row=(numLeft)/8;      NSInteger col=(numLeft)%8;      button.frame=CGRectMake(i*kWidth+20+hspace*col, 10+vspace*row, 35, 35);    }        //====    [button setImage:[UIImage imageNamed:@"compose_emotion_delete_highlighted"] forState:UIControlStateNormal];        [button addTarget:self action:@selector(emotionDelete) forControlEvents:UIControlEventTouchUpInside];    [self addSubview:button];    }   }

  3、我们需要进行图文混排将信息展示到文本框

    ①当点击表情的时候我们需要发送通知,告诉接受者

#pragma mark - 表情点解- (void) emotionClick:(UIButton *) button{  //获取对应的表情模型  JREmotionModel *model=self.emotionArray[button.tag];    //发送通知  [[NSNotificationCenter defaultCenter] postNotificationName:AddEmotionNotification object:nil userInfo:@{@"emotion":model}];

    ②接收到通知后通过富文本技术进行显示

- (void)addEmotion:(NSNotification * ) notification{    JREmotionModel * model= notification.userInfo[@"emotion"];        //如果是Emoji表情直接插入文本即可  if (model.imageName.length==0) {    [self.tf insertText:model.emoji];  }else{    //获取之前的文本    NSAttributedString * text=self.tf.attributedText;        //将之前的文本包含进去    NSMutableAttributedString * attr=[[NSMutableAttributedString alloc] initWithAttributedString:text];        //记录当前的位置    NSInteger index;        //如果是图片表情,需要重新初始化一个附件,并设置图片然后拼接    JRTextAttachMent * temAttch=[[JRTextAttachMent alloc] init];    temAttch.model=model;    temAttch.bounds=CGRectMake(0, -2.5, self.tf.font.lineHeight-5, self.tf.font.lineHeight-5);    temAttch.image=[UIImage imageNamed:model.imageName];        NSAttributedString * tempStr=[NSAttributedString attributedStringWithAttachment:temAttch];        //保存一下之前的位置    index=self.tf.selectedRange.location;    [attr insertAttributedString:tempStr atIndex:index];        //重新给文本框赋值    [attr addAttribute:NSFontAttributeName value:self.tf.font range:NSMakeRange(0, attr.length)];    self.tf.attributedText=attr;    self.tf.selectedRange=NSMakeRange(index+1, 0);  }   }

 

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作者:杰瑞教育
出处:http://www.cnblogs.com/jerehedu/ 
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