JSQMessagesController 文本视图卡住了

Question

发送 2-3 条消息后，我的 TextView 卡住了。我的 iOS 版本是 10.2.1，测试设备是 iPhone 6Plus，JSQMessagesViewController 版本是 7.3.4，代码在 Obj-C 中。我已经实现了以下方法：

-(void)didPressSendButton:(UIButton *)button withMessageText:(NSString *)text senderId:(NSString *)senderId senderDisplayName:(NSString *)senderDisplayName date:(NSDate *)date
{
    [self addMessagewithId:senderId name:senderDisplayName date:date andText:text inArray:_messages inGroup:nil];

    NSDateFormatter *dateF = [[NSDateFormatter alloc] init];
    dateF.dateFormat= @"yyyy-MM-dd hh:mm:ss zzzz";
    NSString *dateStr = [dateF stringFromDate:date];

    NSDictionary *mdata = @{@"text": text, @"senderId":senderId, @"displayName": senderDisplayName, @"date":dateStr};

    // Push data to Firebase Database
    [[[_rootRef child:@"messages"] childByAutoId] setValue:mdata];

    [self finishSendingMessageAnimated:NO];

    _isTyping =false;
    [self sendIsTyping];    
}

-(void)addMessagewithId:(NSString*) senderId name:(NSString*) name date:(NSDate*)date andText:(NSString*) text inArray:(NSMutableArray*)array inGroup:(dispatch_group_t)group1
{

    JSQMessage* message = [[JSQMessage alloc] initWithSenderId:senderId senderDisplayName:name date:date text:text];

    [array addObject:message];

    if (group1) {
        dispatch_group_leave(group1);
    }

}

但是调用之后

[self finishSendingMessageAnimated:NO];

文本视图开始冻结，光标停留在文本结束的位置。随着用户发送更多消息，此冻结时间会增加。请帮忙

Answer 1

我的代码中的问题是在调用方法后

[[[_rootRef child:@"messages"] childByAutoId] setValue:mdata];

it was again reloading all the collectionview as expected from FIRDataEventTypeValue . So I put an array like this :

 [[[_rootRef child:@"messages"] queryOrderedByKey] observeEventType:FIRDataEventTypeValue withBlock:^(FIRDataSnapshot * _Nonnull snapshot) {
for (FIRDataSnapshot *child in snapshot.children) {

                    if ([_arrSnap containsObject:child.key]) {
                        return;
                    }
                    else
                    {
                        [_arrSnap addObject:child.key];

                        //do rest of your coding here
                    }
}
}

所以我的 collectionview 的重新加载停止了，所有额外的代码执行也停止了。

也感谢@danielleonard 的回复。它引导我找到了这个解决方案。

JSQMessagesController 文本视图卡住了

JSQMessagesController textview stuck

objective-c

uitextview

ios

jsqmessagesviewcontroller