首先设置开通“已读”功能
如果是不同APP之间聊天，都要开通“已读功能”
[RCIM sharedRCIM].enabledReadReceiptConversationTypeList =
@[@(ConversationType_PRIVATE)];
*继承RCConversationViewController，重写- (void)willDisplayMessageCell:(RCMessageBaseCell *)cell atIndexPath:(NSIndexPath )indexPath
需要注意的一点的是，重写cell方法后，有网址和电话号码时，字体颜色不一样时，会出现cell复用问题，
- (void)willDisplayMessageCell:(RCMessageBaseCell *)cell atIndexPath:(NSIndexPath *)indexPath {
RCMessageModel *model = [self.conversationDataRepository objectAtIndex:indexPath.row];
if (([cell isKindOfClass:[RCTextMessageCell class]] || [cell isKindOfClass:[RCImageMessageCell class]] || [cell isKindOfClass:[RCVoiceMessageCell class]] || [cell isKindOfClass:[RCLocationMessageCell class]]) && model.conversationType == ConversationType_PRIVATE) {
if (model.content) {
for (UIView *view in [((RCMessageCell *)cell).messageHasReadStatusView subviews]) {
[view removeFromSuperview];
}
UILabel *hasReadView = [[UILabel alloc] init];
hasReadView.textAlignment = NSTextAlignmentRight;
hasReadView.font = [UIFont systemFontOfSize:12];
hasReadView.textColor = RGBOF(0x666666);
((RCMessageCell *)cell).messageHasReadStatusView.hidden = NO;
if (model.sentStatus == SentStatus_READ) {
hasReadView.text = @"已读";
} else if (model.sentStatus == SentStatus_SENT) {
hasReadView.text = @"未读";
}
[((RCMessageCell *)cell).messageHasReadStatusView addSubview:hasReadView];
[hasReadView mas_makeConstraints:^(MASConstraintMaker *make) {
make.right.equalTo(((RCMessageCell *)cell).messageContentView.mas_left).offset(-AutoSizeScaleX(5));
make.bottom.equalTo(((RCMessageCell *)cell).messageContentView.mas_bottom).offset(-AutoSizeScaleY(5));
}];
} else {
if ([cell isKindOfClass:[RCTextMessageCell class]] || [cell isKindOfClass:[RCImageMessageCell class]] || [cell isKindOfClass:[RCVoiceMessageCell class]] || [cell isKindOfClass:[RCLocationMessageCell class]]) {
for (UIView *view in [((RCMessageCell *)cell).messageHasReadStatusView subviews]) {
[view removeFromSuperview];
}
}
}
} else {
NSLog(@"%@",[cell class]);
}
//解决cell复用字体颜色问题
if ([cell isKindOfClass:[RCTextMessageCell class]]){
//改变字体颜色
RCTextMessageCell *textCell = (RCTextMessageCell *)cell;
textCell.textLabel.textColor = RGBOF(0x000000);
NSError *error;
NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypePhoneNumber | NSTextCheckingTypeLink error:&error];
NSArray *matches = [detector matchesInString:textCell.textLabel.text options:0 range:NSMakeRange(0, [textCell.textLabel.text length])];
for(NSTextCheckingResult*match in matches) {
NSString *substringForMatch = [textCell.textLabel.text substringWithRange:match.range];
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:textCell.textLabel.text];
if ([match resultType] == NSTextCheckingTypeLink) {
[attributedString addAttribute:NSForegroundColorAttributeName value:RGBOF(0x66cdaa) range:[textCell.textLabel.text rangeOfString:substringForMatch]];
}
if ([match resultType] == NSTextCheckingTypePhoneNumber) {
[attributedString addAttribute:NSForegroundColorAttributeName value:RGBOF(0x1e90ff) range:[textCell.textLabel.text rangeOfString:substringForMatch]];
// [attributedStringaddAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:matchRange];
}
textCell.textLabel.attributedText = attributedString;
}
}
}
- (void)messageCellUpdateSendingStatusEvent:(NSNotification *)notification {
RCMessageCellNotificationModel *notifyModel = notification.object;
if (notifyModel && ![notifyModel.actionName isEqualToString:CONVERSATION_CELL_STATUS_SEND_PROGRESS]) {
[self reloadMessageCell:notifyModel.messageId];
}
}
- (void)reloadMessageCell:(long)messageId {
__weak typeof(self) __weakself = self;
dispatch_async(dispatch_get_main_queue(), ^{
for (int i = 0; i < __weakself.conversationDataRepository.count; i++) {
RCMessageModel *model = (__weakself.conversationDataRepository)[i];
if (messageId == model.messageId) {
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
[__weakself hideCellReceiptView:indexPath withMessageModel:model];
break;
}
}
});
}
- (void)hideCellReceiptView:(NSIndexPath *)indexPath withMessageModel:(RCMessageModel *)model {
UICollectionViewCell *__cell = [self.conversationMessageCollectionView cellForItemAtIndexPath:indexPath];
[self.conversationMessageCollectionView reloadItemsAtIndexPaths:@[ indexPath ]];
//如果是空说明被回收了，重新dequeue一个cell，这里用来解决已读人数闪的问题
if (__cell) {
if ([__cell isKindOfClass:[RCMessageCell class]]) {
dispatch_async(dispatch_get_main_queue(), ^{
((RCMessageCell *)__cell).receiptCountLabel.hidden = YES;
});
}
}
}
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