[iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
来源:互联网 发布:电脑的mac地址怎么查 编辑:程序博客网 时间:2024/05/21 19:37
感谢博主:转自http://blog.csdn.net/kangx6/article/details/7750765
前两篇介绍了如何通过XMPP来发送消息和接收消息,这一篇我们主要介绍如何来美化我们的聊天程序,看一下最终效果呢,当然源程序也会在最后放出
好了,我们来看一下我们写的程序
这里我们自定义了TableViewCell
一行是显示发布日期,一行是显示发送的消息,还有一个是背景
- -(id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier{
- self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
- if (self) {
- //日期标签
- senderAndTimeLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 5, 300, 20)];
- //居中显示
- senderAndTimeLabel.textAlignment = UITextAlignmentCenter;
- senderAndTimeLabel.font = [UIFont systemFontOfSize:11.0];
- //文字颜色
- senderAndTimeLabel.textColor = [UIColor lightGrayColor];
- [self.contentView addSubview:senderAndTimeLabel];
- //背景图
- bgImageView = [[UIImageView alloc] initWithFrame:CGRectZero];
- [self.contentView addSubview:bgImageView];
- //聊天信息
- messageContentView = [[UITextView alloc] init];
- messageContentView.backgroundColor = [UIColor clearColor];
- //不可编辑
- messageContentView.editable = NO;
- messageContentView.scrollEnabled = NO;
- [messageContentView sizeToFit];
- [self.contentView addSubview:messageContentView];
- }
- return self;
- }
- -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
- static NSString *identifier = @"msgCell";
- KKMessageCell *cell =(KKMessageCell *)[tableView dequeueReusableCellWithIdentifier:identifier];
- if (cell == nil) {
- cell = [[KKMessageCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:identifier];
- }
- NSMutableDictionary *dict = [messages objectAtIndex:indexPath.row];
- //发送者
- NSString *sender = [dict objectForKey:@"sender"];
- //消息
- NSString *message = [dict objectForKey:@"msg"];
- //时间
- NSString *time = [dict objectForKey:@"time"];
- CGSize textSize = {260.0 ,10000.0};
- CGSize size = [message sizeWithFont:[UIFont boldSystemFontOfSize:13] constrainedToSize:textSize lineBreakMode:UILineBreakModeWordWrap];
- size.width +=(padding/2);
- cell.messageContentView.text = message;
- cell.accessoryType = UITableViewCellAccessoryNone;
- cell.userInteractionEnabled = NO;
- UIImage *bgImage = nil;
- //发送消息
- if ([sender isEqualToString:@"you"]) {
- //背景图
- bgImage = [[UIImage imageNamed:@"BlueBubble2.png"] stretchableImageWithLeftCapWidth:20 topCapHeight:15];
- [cell.messageContentView setFrame:CGRectMake(padding, padding*2, size.width, size.height)];
- [cell.bgImageView setFrame:CGRectMake(cell.messageContentView.frame.origin.x - padding/2, cell.messageContentView.frame.origin.y - padding/2, size.width + padding, size.height + padding)];
- }else {
- bgImage = [[UIImage imageNamed:@"GreenBubble2.png"] stretchableImageWithLeftCapWidth:14 topCapHeight:15];
- [cell.messageContentView setFrame:CGRectMake(320-size.width - padding, padding*2, size.width, size.height)];
- [cell.bgImageView setFrame:CGRectMake(cell.messageContentView.frame.origin.x - padding/2, cell.messageContentView.frame.origin.y - padding/2, size.width + padding, size.height + padding)];
- }
- cell.bgImageView.image = bgImage;
- cell.senderAndTimeLabel.text = [NSString stringWithFormat:@"%@ %@", sender, time];
- return cell;
- }
这里在字典里有一个"time"
这是我们接收和发送消息的时间
- +(NSString *)getCurrentTime{
- NSDate *nowUTC = [NSDate date];
- NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
- [dateFormatter setTimeZone:[NSTimeZone localTimeZone]];
- [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
- [dateFormatter setTimeStyle:NSDateFormatterMediumStyle];
- return [dateFormatter stringFromDate:nowUTC];
- }
将我们收到消息的内容也做一下调整
- - (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message{
- // ......
- NSMutableDictionary *dict = [NSMutableDictionary dictionary];
- [dict setObject:msg forKey:@"msg"];
- [dict setObject:from forKey:@"sender"];
- //消息接收到的时间
- [dict setObject:[Statics getCurrentTime] forKey:@"time"];
- ......
- }
- //每一行的高度
- -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
- NSMutableDictionary *dict = [messages objectAtIndex:indexPath.row];
- NSString *msg = [dict objectForKey:@"msg"];
- CGSize textSize = {260.0 , 10000.0};
- CGSize size = [msg sizeWithFont:[UIFont boldSystemFontOfSize:13] constrainedToSize:textSize lineBreakMode:UILineBreakModeWordWrap];
- size.height += padding*2;
- CGFloat height = size.height < 65 ? 65 : size.height;
- return height;
- }
- - (IBAction)sendButton:(id)sender {
- //本地输入框中的信息
- ......
- if (message.length > 0) {
- .....
- NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
- [dictionary setObject:message forKey:@"msg"];
- [dictionary setObject:@"you" forKey:@"sender"];
- [dictionary setObject:[Statics getCurrentTime] forKey:@"time"];
- [messages addObject:dictionary];
- //重新刷新tableView
- [self.tView reloadData];
- }
- }
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- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级]基于XMPP的iOS聊天客户端程序(iOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序(IOS端三)
- [iPhone高级] 基于XMPP的IOS聊天客户端程序
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