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处理滚动底部问题

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CodeST
2026-01-29 14:42:49 +08:00
parent 25fbe9b64e
commit 32ebc6fb65
12 changed files with 174 additions and 26 deletions
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37
keyBoard/Class/AiTalk/V/Chat/KBChatTableView.m
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@@ -132,6 +132,27 @@ static const NSTimeInterval kTimestampInterval = 5 * 60; // 5 分钟
[self addMessage:message autoScroll:YES];
}
- (void)addLoadingUserMessage {
KBAiChatMessage *message = [KBAiChatMessage loadingUserMessage];
[self addMessage:message autoScroll:YES];
}
- (void)updateLastUserMessage:(NSString *)text {
for (NSInteger i = self.messages.count - 1; i >= 0; i--) {
KBAiChatMessage *message = self.messages[i];
if (message.type == KBAiChatMessageTypeUser && message.isLoading) {
message.text = text;
message.isLoading = NO;
message.isComplete = YES;
// 刷新该行
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
[self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
return;
}
}
}
- (void)addAssistantMessage:(NSString *)text
audioDuration:(NSTimeInterval)duration
audioData:(NSData *)audioData {
@@ -198,9 +219,12 @@ static const NSTimeInterval kTimestampInterval = 5 * 60; // 5 分钟
for (NSInteger i = self.messages.count - 1; i >= 0; i--) {
KBAiChatMessage *message = self.messages[i];
if (message.type == KBAiChatMessageTypeUser) {
message.isLoading = NO;
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
[self.tableView reloadRowsAtIndexPaths:@[indexPath]
withRowAnimation:UITableViewRowAnimationNone];
[self.tableView layoutIfNeeded];
[self scrollToBottomAnimated:NO];
return;
}
}
@@ -227,14 +251,9 @@ static const NSTimeInterval kTimestampInterval = 5 * 60; // 5 分钟
CGFloat tableViewHeight = self.tableView.bounds.size.height;
CGFloat bottomInset = self.tableView.contentInset.bottom;
// 如果内容高度小于 tableView 高度，不需要滚动
if (contentHeight <= tableViewHeight) {
NSLog(@"[KBChatTableView] 内容高度(%.2f) <= tableView高度(%.2f)，不需要滚动", contentHeight, tableViewHeight);
return;
}
// 计算滚动到底部的 offset
CGFloat offsetY = contentHeight - tableViewHeight + bottomInset;
offsetY = MAX(0, offsetY);
NSLog(@"[KBChatTableView] scrollToBottom - contentHeight: %.2f, tableViewHeight: %.2f, bottomInset: %.2f, offsetY: %.2f",
contentHeight, tableViewHeight, bottomInset, offsetY);
@@ -312,6 +331,12 @@ static const NSTimeInterval kTimestampInterval = 5 * 60; // 5 分钟
dispatch_async(dispatch_get_main_queue(), ^{
[self.tableView layoutIfNeeded]; // 再次确保布局完成
[self scrollToBottomAnimated:YES];
// 二次滚动以确保底部完全可见（解决自动行高导致的布局偏差）
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self.tableView layoutIfNeeded];
[self scrollToBottomAnimated:NO];
});
});
}
}