425 lines
14 KiB
Objective-C
425 lines
14 KiB
Objective-C
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//
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// UMComRequestTableViewController.m
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// UMCommunity
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//
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// Created by umeng on 15/11/16.
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// Copyright © 2015年 Umeng. All rights reserved.
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//
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#import "UMComRequestTableViewController.h"
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#import "UMComScrollViewDelegate.h"
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#import "UIViewController+UMComAddition.h"
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#import <UMCommunitySDK/UMComSession.h>
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#import "UMComShowToast.h"
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#import "UMComRefreshView.h"
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#import <UMComFoundation/UMComKit+Color.h>
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typedef NS_ENUM(NSInteger, UMComVisitType){
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UMComVisitType_None = -1, //< 初始化状态
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UMComVisitType_VisitNeedLoginForMoreData = 0, //< 需要登录才能访问更多数据
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UMComVisitType_VisitNeedLoginForNoMoreData = 1, //< 需要登录访问，但是没有下一页数据
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UMComVisitType_Visit = 2, //< 可以访问（目前没有用到,UMComVisitType_VisitForMoreData和UMComVisitType_VisitForNoMoreData都可以表示可以访问）
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UMComVisitType_VisitForMoreData = 3, //< 可以访问下一页数据
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UMComVisitType_VisitForNoMoreData = 4 //< 可以访问没有下一页数据
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};
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@interface UMComRequestTableViewController ()<UITableViewDelegate, UITableViewDataSource, UMComScrollViewDelegate>
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@property (nonatomic, assign) CGPoint lastPosition;
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@property(nonatomic,assign)UMComVisitType visitMoreDataMode;
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//检查是否访客模式
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-(BOOL) canVisitNextPage;
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-(void) refreshDataFromServer;
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@end
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@implementation UMComRequestTableViewController
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- (instancetype)init
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{
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self = [super init];
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if (self) {
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[self initData];
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}
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return self;
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}
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- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
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{
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self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
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if (self) {
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[self initData];
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}
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return self;
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}
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- (void)initData
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{
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self.isLoadFinish = YES;
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self.isAutoStartLoadData = YES;
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self.visitMoreDataMode = UMComVisitType_None;
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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self.isLoadFinish = YES;
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self.tableView = [[UITableView alloc] initWithFrame:self.view.bounds];
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self.tableView.delegate = self;
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self.tableView.dataSource = self;
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self.tableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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[self.view addSubview:self.tableView];
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if ([self respondsToSelector:@selector(edgesForExtendedLayout)]) {
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[self setEdgesForExtendedLayout:UIRectEdgeNone];
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}
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__weak typeof(self) weakSelf = self;
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self.refreshHeadView = (UMComHeadView *)[UMComHeadView refreshControllViewWithScrollView:self.tableView block:^{
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[weakSelf refreshData];
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}];
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self.refreshFootView = (UMComFootView *)[UMComFootView refreshControllViewWithScrollView:self.tableView block:^{
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[weakSelf loadMoreData];
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}];
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self.tableView.separatorColor = UMComColorWithHexString(UMCom_Feed_BgColor);
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if ([self.tableView respondsToSelector:@selector(setSeparatorInset:)]) {
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[self.tableView setSeparatorInset:UIEdgeInsetsZero];
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}
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if ([self.tableView respondsToSelector:@selector(setLayoutMargins:)])
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{
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[self.tableView setLayoutMargins:UIEdgeInsetsZero];
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}
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self.scrollViewDelegate = self;
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[self setForumUIBackButtonWithImage:UMComImageWithImageName(@"um_forum_back_gray")];
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[self setForumUITitle:self.title];
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[self updateTableviewConstraints];
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}
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- (void)updateTableviewConstraints
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{
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UITableView *tableView = self.tableView;
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[tableView setTranslatesAutoresizingMaskIntoConstraints:NO];
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NSDictionary *dict1 = NSDictionaryOfVariableBindings(tableView);
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NSDictionary *metrics = @{@"hPadding":@0,@"topPadding":@0,@"vPadding":@0};
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NSString *vfl = @"|-hPadding-[tableView]-hPadding-|";
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NSString *vfl0 = @"V:|-topPadding-[tableView]-vPadding-|";
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[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:vfl options:0 metrics:metrics views:dict1]];
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[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:vfl0 options:0 metrics:metrics views:dict1]];
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}
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- (void)creatNoFeedTip
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{
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UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, self.view.frame.size.height/2-40, self.view.frame.size.width,40)];
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label.backgroundColor = [UIColor clearColor];
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label.text = UMComLocalizedString(@"um_com_emptyData", @"暂时没有内容哦!");
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label.font = UMComFontNotoSansLightWithSafeSize(17);
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label.textColor = UMComColorWithHexString(FontColorGray);
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label.textAlignment = NSTextAlignmentCenter;
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label.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
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label.hidden = YES;
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[self.view addSubview:label];
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self.noDataTipLabel = label;
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}
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewWillAppear:animated];
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if (!self.noDataTipLabel && self.doNotShowNodataNote == NO) {
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[self creatNoFeedTip];
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}
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// 未登录时发送请求可能会不断收到未登录错误码而不断弹出登录
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// 修改为第一次加载后开始手动下拉刷新加载
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if (self.isAutoStartLoadData && self.isLoadFinish) {
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[self refreshData];
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self.isAutoStartLoadData = NO;
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}else{
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[self.tableView reloadData];
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}
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// //首先判断非访客模式===begin
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// if (self.visitMoreDataMode == UMComVisitType_None) {
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// //第一次进入的时候初始化为UMComVisitType_None的时候，表示未知状态，不需要判断其是否为访客模式，需要等到第一次网络请求到了，包含的访客模式(即为visitMoreDataMode赋非UMComVisitType_None的值)
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// return;
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// }
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//
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// //如果当前是访客模式即登录了，但是visitMoreDataMode为非访客模式，就需要修改其提示加载更多
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// if ([self canVisitNextPage]) {
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// if (self.visitMoreDataMode == UMComVisitType_VisitNeedLoginForMoreData)
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// {
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// //非访客模式直接显示加载更多
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// [self.loadMoreStatusView setLoadStatus:UMComNoLoad];
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// }
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// else if (self.visitMoreDataMode == UMComVisitType_VisitNeedLoginForNoMoreData)
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// {
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// //非访客模式直接显示加载完成
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// [self.loadMoreStatusView setLoadStatus:UMComFinish];
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// }
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// else if (self.visitMoreDataMode == UMComVisitType_VisitForMoreData)
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// {
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// [self.loadMoreStatusView setLoadStatus:UMComNoLoad];
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// }
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// else if (self.visitMoreDataMode == UMComVisitType_VisitForNoMoreData)
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// {
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// [self.loadMoreStatusView setLoadStatus:UMComFinish];
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// }
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// else{}
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// }
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// //首先判断非访客模式===end
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}
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////
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
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{
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if (self.dataController.dataArray.count > 0)//有数据
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{
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self.noDataTipLabel.hidden = YES;
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}
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else//数据为空
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{
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self.noDataTipLabel.hidden = NO;
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}
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return self.dataController.dataArray.count;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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static NSString *cellId = @"cellId";
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UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId];
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if (!cell) {
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cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
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}
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return cell;
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}
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- (void)scrollViewDidScroll:(UIScrollView *)scrollView
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{
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if (self.isLoadFinish && self.scrollViewDelegate && [self.scrollViewDelegate respondsToSelector:@selector(customScrollViewDidScroll:lastPosition:)]) {
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[self.scrollViewDelegate customScrollViewDidScroll:scrollView lastPosition:self.lastPosition];
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}
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}
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- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
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{
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self.lastPosition = scrollView.contentOffset;
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if (self.scrollViewDelegate && [self.scrollViewDelegate respondsToSelector:@selector(customScrollViewDidEnd:lastPosition:)]) {
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[self.scrollViewDelegate customScrollViewDidEnd:scrollView lastPosition:self.lastPosition];
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}
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self.lastPosition = scrollView.contentOffset;
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}
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- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
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{
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// [self refreshScrollViewDidEndDragging:scrollView];
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if (self.scrollViewDelegate && [self.scrollViewDelegate respondsToSelector:@selector(customScrollViewEndDrag:lastPosition:)]) {
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[self.scrollViewDelegate customScrollViewEndDrag:scrollView lastPosition:self.lastPosition];
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}
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self.lastPosition = scrollView.contentOffset;
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}
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#pragma mark - refreshdelegate
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- (void)refreshData:(UMComRefreshView *)refreshView
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{
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[self refreshData];
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}
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- (void)loadMoreData:(UMComRefreshView *)refreshView
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{
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[self loadMoreData];
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}
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#pragma mark - UMComRefreshTableViewDelegate
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- (void) fetchLocalData
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{
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__weak typeof(self) weakSelf = self;
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[self.dataController fetchLocalDataWithCompletion:^(NSArray *dataArray, NSError *error) {
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if (dataArray && [dataArray isKindOfClass:[NSArray class]] && dataArray.count > 0) {
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[weakSelf handleLocalData:dataArray error:error];
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[weakSelf.tableView reloadData];
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}
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[weakSelf refreshDataFromServer];
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}];
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}
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- (void)refreshData
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{
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if (self.dataController.isReadLoacalData) {
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//设置NO只会第一次下拉刷新取本地数据
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self.dataController.isReadLoacalData = NO;
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//取本地数据的话，就不需要显示loadMoreStatusView的views
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[self fetchLocalData];
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}
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else{
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[self refreshDataFromServer];
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}
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}
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-(void)refreshDataFromServer
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{
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if (!self.dataController) {
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[self.refreshHeadView noMoreData];
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return;
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}
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if (self.isLoadFinish == NO) {
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return;
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}
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self.isLoadFinish = NO;
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
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__weak typeof(self) weakSelf = self;
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[self.dataController refreshNewDataCompletion:^(NSArray *responseData, NSError *error) {
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
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[UMComShowToast showFetchResultTipWithError:error];
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if (!error) {
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[weakSelf.refreshHeadView endLoading];
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if (weakSelf.dataController.haveNextPage) {
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[weakSelf.refreshFootView endLoading];
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}else{
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[weakSelf.refreshFootView noMoreData];
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}
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}else{
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[weakSelf.refreshHeadView endLoading];
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weakSelf.refreshHeadView.statusLable.text = UMComLocalizedString(@"server_error", @"网络请求失败");
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}
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weakSelf.isLoadFinish = YES;
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if (weakSelf.refreshSeverDataCompletionHandler) {
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weakSelf.refreshSeverDataCompletionHandler(responseData, error);
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}
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[weakSelf handleFirstPageData:responseData error:error];
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[weakSelf.tableView reloadData];
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}];
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}
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- (void)loadMoreData
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{
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//首先判断非访客模式===begin
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if (![self canVisitNextPage]) {
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[self.refreshFootView endLoading];
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self.refreshFootView.statusLable.text = @"登录加载更多";
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return;
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}
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// //非访客模式，并且请求了第一次的网络数据
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// if(![self canVisitNextPage] && self.visitMoreDataMode != UMComVisitType_None)
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// {
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//
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// return;
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// }
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if (self.isLoadFinish == NO) {
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return;
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}
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if (!self.dataController) {
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[self.refreshFootView noMoreData];
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return;
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}
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self.isLoadFinish = NO;
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__weak typeof(self) weakSelf = self;
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
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[self.dataController loadNextPageDataWithCompletion:^(NSArray *responseData, NSError *error) {
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
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weakSelf.isLoadFinish = YES;
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if (!error) {
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if (weakSelf.dataController.haveNextPage) {
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[weakSelf.refreshFootView endLoading];
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}else{
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[weakSelf.refreshFootView noMoreData];
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}
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}else{
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[weakSelf.refreshFootView endLoading];
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weakSelf.refreshFootView.statusLable.text = UMComLocalizedString(@"server_error", @"网络请求失败");
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}
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if (weakSelf.loadMoreDataCompletionHandler) {
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weakSelf.loadMoreDataCompletionHandler(responseData, error);
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}
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[weakSelf handleNextPageData:responseData error:error];
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if (responseData) {
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[weakSelf.tableView reloadData];
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}
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}];
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}
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- (void)didReceiveMemoryWarning {
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[super didReceiveMemoryWarning];
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// Dispose of any resources that can be recreated.
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}
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/**
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* 登陆用户和访客模式都会返回true，因其拥有一样的权限
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*
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* @return true 表示有权限查看下一页 false 代表没有权限查看下一页
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*/
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-(BOOL) canVisitNextPage
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{
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//登陆用户
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if ([UMComSession sharedInstance].isLogin) {
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return YES;
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}
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return self.dataController.canVisitNextPage;
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}
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#pragma mark - data handle method
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/**
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*处理本地数据
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*/
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- (void)handleLocalData:(NSArray *)data error:(NSError *)error
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{
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if (error) {
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[UMComShowToast showFetchResultTipWithError:error];
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}else{
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}
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}
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/**
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*处理网络请求第一页数据
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*/
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- (void)handleFirstPageData:(NSArray *)data error:(NSError *)error
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{
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if (error) {
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[UMComShowToast showFetchResultTipWithError:error];
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}else{
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}
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}
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/**
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*处理网络请求下一页数据
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*/
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- (void)handleNextPageData:(NSArray *)data error:(NSError *)error
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{
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if (error) {
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[UMComShowToast showFetchResultTipWithError:error];
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}else{
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}
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}
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@end
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