240 lines
7.7 KiB
Objective-C
240 lines
7.7 KiB
Objective-C
//
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// XPRoomMessageView.m
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// xplan-ios
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//
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// Created by 冯硕 on 2021/10/11.
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//
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#import "XPRoomMessageContainerView.h"
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///Third
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#import <Masonry/Masonry.h>
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#import <NIMSDK/NIMSDK.h>
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///Tool
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#import "ThemeColor.h"
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///Model
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#import "XPRoomMessageDisplayModel.h"
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///View
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#import "XPRoomMessageTableViewCell.h"
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#import "XPRoomMessageHeaderView.h"
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#import "View/XPRoomMessageHeaderView.h"
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///P
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#import "XPIMRoomDelegate.h"
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#import "XPIMManager.h"
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@interface XPRoomMessageContainerView ()<UITableViewDelegate, UITableViewDataSource,XPIMRoomDelegate>
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///列表
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@property (nonatomic,strong) UITableView *messageTableView;
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///数据源
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@property (nonatomic,strong) NSMutableArray<XPRoomMessageDisplayModel *> *datasource;
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///临时存放消息的数组
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@property (nonatomic,strong) NSMutableArray<XPRoomMessageDisplayModel *> *tempArray;
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///头部
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@property (nonatomic,strong) XPRoomMessageHeaderView *headerView;
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///底部有新的消息
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@property (nonatomic,strong) UIButton *messageTipsBtn;
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///是否处于正在爬楼
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@property (nonatomic,assign) BOOL isPending;
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@end
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@implementation XPRoomMessageContainerView
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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[[XPIMManager shareManager].chatRoomManager addDelegate:self];
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[self initSubViews];
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[self initSubViewConstraints];
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}
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return self;
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}
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#pragma mark - Response
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- (void)messagTipsBtnAction:(UIButton *)sender {
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[self tryToappendAndScrollToBottom];
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self.isPending = NO;
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}
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#pragma mark - Private Method
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- (void)initSubViews {
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[self addSubview:self.messageTableView];
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[self addSubview:self.messageTipsBtn];
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self.messageTableView.tableHeaderView = self.headerView;
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}
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- (void)initSubViewConstraints {
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[self.messageTableView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.mas_equalTo(self).offset(15);
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make.top.bottom.right.mas_equalTo(self);
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}];
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[self.messageTipsBtn mas_makeConstraints:^(MASConstraintMaker *make) {
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make.width.mas_equalTo(100);
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make.height.mas_equalTo(30);
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make.bottom.mas_equalTo(self.mas_bottom).offset(-5);
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make.left.mas_equalTo(self);
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}];
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}
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#pragma mark - 添加数据并且做自动滚动
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///添加信息
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- (void)addRoomMessage:(NIMMessage *)message {
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XPRoomMessageDisplayModel * model = [[XPRoomMessageDisplayModel alloc] initDisplayModel:message];
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[self.tempArray addObject:model];
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///开始加入数据
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[self tryToappendAndScrollToBottom];
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}
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/// 添加数据并滚动到底部
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- (void)tryToappendAndScrollToBottom {
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// 处于爬楼状态更新更多按钮
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[self updateMessageTipsBtnHidden];
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if (!self.isPending) {
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// 如果不处在爬楼状态，追加数据源并滚动到底部
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[self appendAndScrollToBottom];
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}
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}
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///更新底部有新的消息按钮的状态
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- (void)updateMessageTipsBtnHidden {
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if (self.isPending && self.tempArray.count > 0) {
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self.messageTipsBtn.hidden = NO;
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} else {
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self.messageTipsBtn.hidden = YES;
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}
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}
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///追加数据源
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- (void)appendAndScrollToBottom {
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if (self.tempArray.count < 1) {
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return;
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}
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// 执行插入
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NSMutableArray *indexPaths = [NSMutableArray array];
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for (XPRoomMessageDisplayModel *item in self.tempArray) {
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[self.datasource addObject:item];
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[indexPaths addObject:[NSIndexPath indexPathForRow:self.datasource.count - 1 inSection:0]];
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}
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[self.messageTableView reloadData];
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[self.tempArray removeAllObjects];
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//执行插入动画并滚动
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[self scrollToBottom:YES];
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}
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///执行插入动画并滚动
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- (void)scrollToBottom:(BOOL)animated {
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NSInteger s = [self.messageTableView numberOfSections]; //有多少组
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if (s<1) return;
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NSInteger r = [self.messageTableView numberOfRowsInSection:s-1]; //最后一组行
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if (r<1) return;
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NSIndexPath *ip = [NSIndexPath indexPathForRow:r-1 inSection:s-1]; //取最后一行数据
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[self.messageTableView scrollToRowAtIndexPath:ip atScrollPosition:UITableViewScrollPositionNone animated:animated]; //滚动到最后一行
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}
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#pragma mark - ScrollViewDelegate
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- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
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// 手动拖拽开始
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self.isPending = YES;
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}
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- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
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// 手动拖拽结束（decelerate：0松手时静止；1松手时还在运动,会触发DidEndDecelerating方法）
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if (!decelerate) {
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[self finishDraggingWith:scrollView];
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}
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}
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- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
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// 静止后触发（手动）
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[self finishDraggingWith:scrollView];
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}
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/** 手动拖拽动作彻底完成(减速到零) */
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- (void)finishDraggingWith:(UIScrollView *)scrollView {
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CGFloat contentSizeH = scrollView.contentSize.height;
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CGFloat contentOffsetY = scrollView.contentOffset.y;
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CGFloat sizeH = scrollView.frame.size.height;
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self.isPending = contentSizeH - contentOffsetY - sizeH > 20.0;
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// 如果不处在爬楼状态，追加数据源并滚动到底部
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[self tryToappendAndScrollToBottom];
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}
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#pragma mark - UITableViewDelegate And UITableViewDataSource
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
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return self.datasource.count;
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}
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- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
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XPRoomMessageDisplayModel * model = [self.datasource objectAtIndex:indexPath.row];
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return model.cellHeight;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
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XPRoomMessageTableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:NSStringFromClass([XPRoomMessageTableViewCell class])];
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if (cell == nil) {
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cell = [[XPRoomMessageTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:NSStringFromClass([XPRoomMessageTableViewCell class])];
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}
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XPRoomMessageDisplayModel * model = [self.datasource objectAtIndex:indexPath.row];
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cell.displayModel = model;
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return cell;
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}
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#pragma mark - Getters And Setters
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- (UITableView *)messageTableView {
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if (!_messageTableView) {
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_messageTableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
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_messageTableView.delegate = self;
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_messageTableView.dataSource = self;
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_messageTableView.tableFooterView = [UIView new];
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_messageTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
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_messageTableView.backgroundColor = [UIColor clearColor];
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_messageTableView.showsVerticalScrollIndicator = NO;
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if (@available(iOS 11.0, *)) {
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_messageTableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
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}
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[_messageTableView registerClass:[XPRoomMessageTableViewCell class] forCellReuseIdentifier:NSStringFromClass([XPRoomMessageTableViewCell class])];
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}
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return _messageTableView;
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}
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- (XPRoomMessageHeaderView *)headerView {
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if (!_headerView) {
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_headerView = [[XPRoomMessageHeaderView alloc] init];
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}
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return _headerView;
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}
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- (UIButton *)messageTipsBtn {
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if (!_messageTipsBtn) {
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_messageTipsBtn = [UIButton buttonWithType:UIButtonTypeCustom];
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[_messageTipsBtn setTitle:@"底部有新消息" forState:UIControlStateNormal];
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[_messageTipsBtn setTitleColor:[ThemeColor appMainColor] forState:UIControlStateNormal];
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_messageTipsBtn.layer.cornerRadius = 15.0;
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_messageTipsBtn.layer.masksToBounds = YES;
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_messageTipsBtn.titleLabel.font = [UIFont systemFontOfSize:12.0];
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_messageTipsBtn.backgroundColor = [UIColor whiteColor];
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[_messageTipsBtn addTarget:self action:@selector(messagTipsBtnAction:) forControlEvents:UIControlEventTouchUpInside];
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_messageTipsBtn.hidden = YES;
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}
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return _messageTipsBtn;
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}
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- (NSMutableArray<XPRoomMessageDisplayModel *> *)datasource {
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if (!_datasource) {
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_datasource = [NSMutableArray array];
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}
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return _datasource;
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}
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- (NSMutableArray<XPRoomMessageDisplayModel *> *)tempArray {
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if (!_tempArray) {
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_tempArray = [NSMutableArray array];
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}
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return _tempArray;
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}
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@end
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