mirror of
https://github.com/leanote/leanote-ios.git
synced 2025-10-17 00:24:09 +00:00
930 lines
28 KiB
Objective-C
Executable File
930 lines
28 KiB
Objective-C
Executable File
// 笔记列表
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#import "AppDelegate.h"
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#import "NoteCell.h"
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#import "NoteController.h"
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#import "NoteViewController.h"
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#import "Note.h"
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// #import "NoteService.h"
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#import "Notebook.h"
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// #import "NotebookService.h"
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#import "Leas.h"
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#import "LeaAlert.h"
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#import "ApiMsg.h"
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#import "SVProgressHUD.h"
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#import "SyncService.h"
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#import "UserService.h"
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#import "LeaWebViewController.h"
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#import <SGNavigationProgress/UINavigationController+SGProgress.h>
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@interface NoteController()
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@property (strong, nonatomic) NSIndexPath *indexPathToBeDeleted;
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@property (strong, nonatomic) NSFetchedResultsController *searchedResultsController;
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@property (strong, nonatomic) UITableView *curTableView;
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@property (strong, nonatomic) Note *curNote;
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@property (strong, nonatomic) NSFetchedResultsController *curFetched;
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@property (strong, nonatomic) UIView *nomatchesView;
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@property BOOL noResult;
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- (void)handleOrientationChangeNotification:(NSNotification *)notification;
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- (void)noteTitle;
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- (NSUInteger)titleLength;
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- (void)configureCell:(UITableViewCell *)cell forNote:(Note *)note;
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- (NSFetchedResultsController *)fetchedResultsControllerWithPredicate:(NSPredicate *)predicate;
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@property (nonatomic, strong) SWTableViewCell *curCell;
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@end
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@implementation NoteController
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@synthesize detailViewController = _detailViewController;
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@synthesize fetchedResultsController = _fetchedResultsController;
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@synthesize searchedResultsController = _searchedResultsController;
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#pragma mark - Device Orientation Change Notification
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- (void)handleOrientationChangeNotification:(NSNotification *)notification
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{
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[self.tableView reloadData];
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}
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#pragma mark - Leanote Title
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// 显示标题 note(数量)
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- (void)noteTitle
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{
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NSFetchedResultsController *fetched = nil;
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// 判断是否是搜索显示的数量
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if([self.searchDisplayController isActive])
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fetched = self.fetchedResultsController;
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else
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fetched = self.searchedResultsController;
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id <NSFetchedResultsSectionInfo> sectionInfo = [fetched sections][0];
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NSString *titlePrefix = NSLocalizedString(@"Note", @"");
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if(self.isBlog) {
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// self.title = NSLocalizedString(@"Post", nil);
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// self.navigationItem.title = NSLocalizedString(@"Post", nil);
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titlePrefix = NSLocalizedString(@"Post", nil);
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}
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else if (self.notebook) {
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titlePrefix = self.notebook.title;
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}
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else if(self.tag) {
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titlePrefix = self.tag.title;
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}
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// 以后, 这里的Note换成Notebook名称
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if([sectionInfo numberOfObjects] > 0) {
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// self.title = ;
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self.navigationItem.title = [NSString stringWithFormat:@"%@ (%lu)", titlePrefix, (unsigned long)[sectionInfo numberOfObjects]];
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}
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else {
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self.navigationItem.title = titlePrefix;
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}
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}
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// 这个函数是系统自动来调用
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// ios系统接收到ChangeTheme广播就会来自动调用
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// notify就是广播的所有内容
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- (void) recvBcast:(NSNotification *)notify
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{
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/*
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// 取得广播内容
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NSDictionary *dict = [notify userInfo];
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NSString *name = [dict objectForKey:@"ThemeName"];
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UIColor *c = [dict objectForKey:@"ThemeColor"];
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self.title = name;
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self.view.backgroundColor = c;
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*/
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// 必须要设空, 再reload
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_fetchedResultsController = nil;
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_searchedResultsController = nil;
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[self.tableView reloadData];
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[self noteTitle];
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NSLog(@"关闭进度条, 取消下拉刷新");
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// 关闭进度
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[self.navigationController hideProgress];
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[self.navigationController setSGProgressPercentage:0 andTintColor:[UIColor whiteColor]];
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// 取消下拉刷新
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if(self.refreshControl) {
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[self.refreshControl endRefreshing];
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}
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}
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#pragma mark - ViewController Lifecycle
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// 入口
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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// Do any additional setup after loading the view, typically from a nib.
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[self noteTitle];
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NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
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// 成为听众一旦有广播就来调用self recvBcast:函数
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[nc addObserver:self selector:@selector(recvBcast:) name:@"changeUser" object:nil];
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// refresh control
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// 初始化UIRefreshControl
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UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
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if(!self.notebook && !self.tag) {
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[refreshControl addTarget:self action:@selector(sync:) forControlEvents:UIControlEventValueChanged];
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[self restorePullTitle:refreshControl];
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[self setRefreshControl:refreshControl];
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}
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// 放这里
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[self.tableView reloadData];
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// table的样式, 包括search table view
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[self setTableStyle:self.tableView];
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// [self setTableStyle:self.searchDisplayController.searchResultsTableView];
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// isBlog ?
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if(self.isBlog) {
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self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:NSLocalizedString(@"Visit Blog", nil) style:UIBarButtonItemStylePlain target:self action:@selector(visitMyBlog)];
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self.searchDisplayController.searchBar.placeholder = NSLocalizedString(@"Search Post", nil);
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}
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else {
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self.searchDisplayController.searchBar.placeholder = NSLocalizedString(@"Search Note", nil);
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}
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self.nomatchesView = [self iniNoResultView:self.tableView];
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// self.nomatchesView.hidden = NO;
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// UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 200)];
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// UILabel *labelView = [[UILabel alloc] initWithFrame:CGRectMake(20, 80, 200, 20)];
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// labelView.text = @"TEST";
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// [headerView addSubview:labelView];
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//
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// [self.tableView addSubview:headerView];
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}
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-(void) visitMyBlog
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{
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[self visitUrl:nil];
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}
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-(void) visitUrl:(Note *)note
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{
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LeaWebViewController *webViewController = [[LeaWebViewController alloc] init];
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webViewController.needsLogin = YES;
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User *user = [UserService getCurUser];
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webViewController.host = user.host;
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webViewController.email = user.email;
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webViewController.pwd = user.pwd;
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webViewController.url = note ? [NSURL URLWithString:[UserService getPostUrl:note.serverNoteId]]: [NSURL URLWithString:[UserService getMyBlogUrl]];
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UIBarButtonItem *newBackButton =
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[[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(self.isBlog ? @"Post" : @"Note", nil)
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style:UIBarButtonItemStyleBordered
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target:nil
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action:nil];
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[self.navigationItem setBackBarButtonItem:newBackButton];
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[self.navigationController pushViewController:webViewController animated:YES];
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}
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- (void) restorePullTitle:(UIRefreshControl *)refreshControl
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{
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NSAttributedString *title = [[NSAttributedString alloc] initWithString:NSLocalizedString(@"Pull to synchronize", "")
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attributes: @{
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NSForegroundColorAttributeName:[UIColor blackColor]
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}];
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refreshControl.attributedTitle = [[NSAttributedString alloc]initWithAttributedString:title];
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}
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- (void)setPullTitleSyncing
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{
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NSAttributedString *title = [[NSAttributedString alloc] initWithString:NSLocalizedString(@"Synchronizing", "")
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attributes: @{
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NSForegroundColorAttributeName:[UIColor blackColor]
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}];
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self.refreshControl.attributedTitle = [[NSAttributedString alloc]initWithAttributedString:title];
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}
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// 判断是否是第一次打开该界面
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- (void) loginAndSync
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{
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BOOL inited = [UserService getOpenInited];
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if (!inited) {
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BOOL isFirtSync = [[UserService getLastSyncUsn] integerValue] < 1;
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[UserService setOpenInited:YES];
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[self incSync:nil completeNeedAlert:isFirtSync beforeNeedLoading:isFirtSync];
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}
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}
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// completeNeedAlert结束后是否要alertr提示
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- (void) incSync:(id)sender completeNeedAlert:(BOOL)completeNeedAlert beforeNeedLoading:(BOOL)beforeNeedLoading
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{
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if(sender) {
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[self setPullTitleSyncing];
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}
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// 第一次登录进来, 要提示正在同步
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if(beforeNeedLoading) {
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[Common showProgressWithStatus:NSLocalizedString(@"Synchronizing...", nil)];
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}
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[SyncService incrSync:^(BOOL ok) {
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if(sender) {
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[self restorePullTitle:self.refreshControl];
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}
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if(completeNeedAlert) {
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[Common hideProgress];
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if(ok) {
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[self showSuccessMsg:NSLocalizedString(@"Synchronize successful", nil)];
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}
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else {
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[self showErrorMsg:NSLocalizedString(@"Synchronize failed", @"") ret:nil];
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}
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}
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if(sender) {
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[(UIRefreshControl *)sender endRefreshing];
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}
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} progress:^(int p) {
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// 表示正在有同步, 不要再同步
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if(p == -1) {
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[self showSuccessMsg:NSLocalizedString(@"Synchronizing...", @"")];
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[self.navigationController hideProgress];
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return;
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// 表示同步失败
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} else if(p == -2) {
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// 必须要延迟啊, 不然showErrorMsg会很快消失
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[Common setTimeout:500 callback:^{
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[self.navigationController hideProgress];
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[self.navigationController setSGProgressPercentage:0 andTintColor:[UIColor whiteColor]];
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}];
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return;
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}
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[self.navigationController setSGProgressPercentage:p andTintColor:[UIColor whiteColor]];
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if(p >= 100) {
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[self.navigationController hideProgress];
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}
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}];
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// https://github.com/sgryschuk/SGNavigationProgress
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// [self.navigationController showSGProgressWithDuration:1 andTintColor:[UIColor whiteColor]];
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// [self.navigationController setSGProgressPercentage:50 andTintColor:[UIColor whiteColor]];
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}
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// 同步
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- (void)sync:(id)sender
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{
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[self incSync:sender completeNeedAlert:YES beforeNeedLoading:NO];
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}
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- (void)awakeFromNib
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{
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if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad)
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{
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self.clearsSelectionOnViewWillAppear = NO;
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self.preferredContentSize = CGSizeMake(320.0, 600.0);
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}
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[super awakeFromNib];
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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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[self beautifySearchBar];
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// 从cate过来的
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if((self.notebook || self.tag)/* && !self.isSelectOnSearch*/) {
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[self.navigationController setNavigationBarHidden:NO animated:animated];
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[self restoreBarStyle];
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}
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else {
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[self setBarStyle];
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}
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self.edgesForExtendedLayout = UIRectEdgeNone;
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// 通知, TODO 应该不要的
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(handleOrientationChangeNotification:)
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name:UIDeviceOrientationDidChangeNotification
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object:nil];
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// ios7
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if(self.noResult) {
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self.nomatchesView.hidden = NO;
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}
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}
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- (void)viewDidAppear:(BOOL)animated
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{
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// 显示status bar
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// 防止编辑时直接回到该页
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[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationSlide];
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[self loginAndSync];
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}
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- (void)viewDidDisappear:(BOOL)animated
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{
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[super viewDidDisappear:animated];
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// [[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)didReceiveMemoryWarning
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{
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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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#pragma mark - Table View
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// 多少组, 当前只有一个, 后期可以按日期来分组
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// get the number of sections in the table view
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- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
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{
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NSFetchedResultsController *fetched = nil;
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if(tableView == self.tableView)
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fetched = self.fetchedResultsController;
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else
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fetched = self.searchedResultsController;
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return [[fetched sections] count];
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}
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// 每组有多少行
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// get the number of rows in the table view section
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
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{
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NSFetchedResultsController *fetched = nil;
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BOOL isSearch;
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if(tableView == self.tableView) {
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fetched = self.fetchedResultsController;
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isSearch = NO;
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}
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else {
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fetched = self.searchedResultsController;
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isSearch = YES;
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}
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id <NSFetchedResultsSectionInfo> sectionInfo = [[fetched sections] objectAtIndex:section];
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NSInteger count = [sectionInfo numberOfObjects];
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if(!isSearch) {
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if (count == 0) {
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self.nomatchesView.hidden = NO;
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self.noResult = YES;
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self.searchDisplayController.searchBar.hidden = YES;
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}
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else {
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self.nomatchesView.hidden = YES;
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self.noResult = NO;
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self.searchDisplayController.searchBar.hidden = NO;
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}
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}
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// self.nomatchesView.hidden = NO;
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return count;
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}
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// 每行显示什么
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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// get the right fetch controller
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NSFetchedResultsController *fetched = nil;
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if(tableView == self.tableView)
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fetched = self.fetchedResultsController;
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else
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fetched = self.searchedResultsController;
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// configure the cell
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Note *note = [fetched objectAtIndexPath:indexPath];
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static NSString *cellIdentifier2 = @"NoteCell2";
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NoteCell *cell2 = [tableView dequeueReusableCellWithIdentifier:cellIdentifier2];
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if (cell2 == nil) {
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cell2 = [[NoteCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier2];
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cell2.rightUtilityButtons = [self rightButtons:[note.isBlog boolValue]];
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cell2.delegate = self;
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// cell2.accessibilityLabel = [note.isBlog boolValue] ? @"blog" : @"no";
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}
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[cell2 setNote:note];
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return cell2;
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}
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- (NSArray *)rightButtons:(BOOL)isBlog
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{
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NSMutableArray *rightUtilityButtons = [NSMutableArray new];
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if(isBlog) {
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[rightUtilityButtons sw_addUtilityButtonWithColor:
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[UIColor colorWithRed:0.78f green:0.78f blue:0.8f alpha:1.0]
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title:NSLocalizedString(@"Visit Post", nil)];
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}
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[rightUtilityButtons sw_addUtilityButtonWithColor:
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[UIColor colorWithRed:1.0f green:0.231f blue:0.188 alpha:1.0f]
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title:NSLocalizedString(@"Delete", nil)];
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return rightUtilityButtons;
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}
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#pragma mark - SWTableViewDelegate
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- (void)swipeableTableViewCell:(SWTableViewCell *)cell didTriggerRightUtilityButtonWithIndex:(NSInteger)index {
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NSFetchedResultsController *fetched = nil;
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NSIndexPath *indexPath;
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if(!self.searchDisplayController.isActive) {
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fetched = self.fetchedResultsController;
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indexPath = [self.tableView indexPathForCell:cell];
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}
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else {
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fetched = self.searchedResultsController;
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indexPath = [self.searchDisplayController.searchResultsTableView indexPathForCell:cell];
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}
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Note *note = [fetched objectAtIndexPath:indexPath];
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self.curNote = note;
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self.curFetched = fetched;
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self.curCell = cell;
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if(![note.isBlog boolValue]) {
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[self deleteNote];
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}
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// 这里有问题, 之前是博客, 那么是有visit blog的, 后来取消blog, 还是会有visit blog
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else {
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if(index == 0) {
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if([note.isBlog boolValue]) {
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[self visitUrl:note];
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}
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// 关闭之
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[self.curCell hideUtilityButtonsAnimated:YES];
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}
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else {
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[self deleteNote];
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}
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}
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}
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- (void) deleteNote
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{
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UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Warning", @"")
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message:NSLocalizedString(@"Are you sure?", @"")
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delegate:self
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cancelButtonTitle:NSLocalizedString(@"NO", @"")
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otherButtonTitles:NSLocalizedString(@"YES", @""), nil];
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alert.delegate = self;
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[alert show];
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}
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// 删除之后走这里
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- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
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{
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NSString *title = [alertView buttonTitleAtIndex:buttonIndex];
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if([title isEqualToString:NSLocalizedString(@"NO", nil)])
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{
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NSLog(@"Nothing to do here");
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}
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else if([title isEqualToString:NSLocalizedString(@"YES", nil)])
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{
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NSLog(@"Delete the cell");
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[Leas.note deleteNote:self.curNote success:^{
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[self showSuccessMsg:NSLocalizedString(@"Synchronize deleted note successful", @"")];
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} fail:^(id ret) {
|
||
[self showErrorMsg:NSLocalizedString(@"Synchronize deleted note failed", nil) ret:ret];
|
||
}];
|
||
}
|
||
|
||
[self setEditing:NO animated:YES];
|
||
|
||
// 关闭之
|
||
[self.curCell hideUtilityButtonsAnimated:YES];
|
||
}
|
||
|
||
|
||
|
||
// 每行显示的信息
|
||
// configure the note table view cell
|
||
- (void)configureCell:(UITableViewCell *)cell
|
||
forNote:(Note *)note
|
||
{
|
||
NoteCell *cell2 = (NoteCell *) cell;
|
||
cell2.note = note;
|
||
|
||
// 因为可能blog有改动, 这里需要重新设置下
|
||
cell2.rightUtilityButtons = [self rightButtons:[note.isBlog boolValue]];
|
||
cell2.delegate = self;
|
||
|
||
return;
|
||
}
|
||
|
||
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
|
||
// get the right fetch controller
|
||
NSFetchedResultsController *fetched = nil;
|
||
if(tableView == self.tableView)
|
||
fetched = self.fetchedResultsController;
|
||
else
|
||
fetched = self.searchedResultsController;
|
||
|
||
// configure the cell
|
||
Note *note = [fetched objectAtIndexPath:indexPath];
|
||
|
||
return [NoteCell rowHeightForContentProvider:note andWidth:CGRectGetWidth(tableView.frame)];
|
||
}
|
||
|
||
// 可编辑, 因为可删除
|
||
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
|
||
{
|
||
return NO;
|
||
}
|
||
|
||
// 单元格操作, 删除
|
||
// 这里已经没用了, 不会走这里
|
||
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
|
||
{
|
||
self.indexPathToBeDeleted = indexPath;
|
||
self.curTableView = tableView;
|
||
|
||
// 删除的操作
|
||
if (editingStyle == UITableViewCellEditingStyleDelete)
|
||
{
|
||
NSFetchedResultsController *fetched = nil;
|
||
if(tableView == self.tableView)
|
||
fetched = self.fetchedResultsController;
|
||
else
|
||
fetched = self.searchedResultsController;
|
||
|
||
self.curFetched = fetched;
|
||
self.curNote =[fetched objectAtIndexPath:indexPath];
|
||
|
||
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Warning", @"")
|
||
message:NSLocalizedString(@"Are you sure?", @"")
|
||
delegate:self
|
||
cancelButtonTitle:NSLocalizedString(@"NO", @"")
|
||
otherButtonTitles:NSLocalizedString(@"YES", @""), nil];
|
||
[alert show];
|
||
}
|
||
}
|
||
|
||
// 不可移动
|
||
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
|
||
{
|
||
// The table view should not be re-orderable.
|
||
return YES;
|
||
}
|
||
|
||
// 点击事件, 这里为什么还需要? 不是有prepareForSegue吗?
|
||
// 因为搜索的关系, 没有绑定, 这里要手工跳转
|
||
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
|
||
{
|
||
// we only want to do this if the user is doing a search
|
||
// if(tableView == self.searchDisplayController.searchResultsTableView)
|
||
[self performSegueWithIdentifier:@"showNote" sender:self];
|
||
}
|
||
|
||
// 跳转到show note或 add note页面
|
||
// 得到点击的note
|
||
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
|
||
{
|
||
// NSLog(@"[%@ %@]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
|
||
|
||
// 修改笔记
|
||
if([[segue identifier] isEqualToString:@"showNote"])
|
||
{
|
||
NSLog(@"[%@ %@] showNote", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
|
||
|
||
NSFetchedResultsController *fetched = nil;
|
||
NSIndexPath *indexPath = nil;
|
||
if([self.searchDisplayController isActive])
|
||
{
|
||
fetched = self.searchedResultsController;
|
||
indexPath = [self.searchDisplayController.searchResultsTableView indexPathForSelectedRow];
|
||
}
|
||
else
|
||
{
|
||
fetched = self.fetchedResultsController;
|
||
indexPath = [self.tableView indexPathForSelectedRow];
|
||
}
|
||
|
||
Note *note = [fetched objectAtIndexPath:indexPath];
|
||
[[segue destinationViewController] setNote:note];
|
||
}
|
||
|
||
// 添加笔记
|
||
else if([[segue identifier] isEqualToString:@"addNote"])
|
||
{
|
||
NSLog(@"[%@ %@] addNote", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
|
||
NoteViewController *vc = [segue destinationViewController];
|
||
vc.tag = self.tag;
|
||
vc.notebook = self.notebook;
|
||
}
|
||
|
||
// 返回按钮
|
||
UIBarButtonItem *newBackButton =
|
||
[[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(self.isBlog ? @"Post" : @"Note", nil)
|
||
style:UIBarButtonItemStyleBordered
|
||
target:nil
|
||
action:nil];
|
||
[[self navigationItem] setBackBarButtonItem:newBackButton];
|
||
|
||
// 隐藏tab bar
|
||
// life
|
||
((NoteViewController *)[segue destinationViewController]).hidesBottomBarWhenPushed = YES;
|
||
|
||
// [self.tableView reloadData];
|
||
}
|
||
|
||
// 实现这个控制器，最关键的还要实现Fetched Results Controller Delegate Methods。控制器与数据源连接后，控制器监视器会时刻监视着数据源，当数据源发生
|
||
// http://blog.csdn.net/jinkelei/article/details/6871403
|
||
/*
|
||
- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller；
|
||
- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller；
|
||
- (void)controller:(NSFetchedResultsController *)controller
|
||
didChangeObject:(id)anObject
|
||
atIndexPath:(NSIndexPath *)indexPath
|
||
forChangeType:(NSFetchedResultsChangeType)type
|
||
newIndexPath:(NSIndexPath *)newIndexPath；
|
||
- (void)controller:(NSFetchedResultsController *)controller
|
||
didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo
|
||
atIndex:(NSUInteger)sectionIndex
|
||
forChangeType:(NSFetchedResultsChangeType)type；
|
||
*/
|
||
#pragma mark - Fetched results controller
|
||
|
||
// 终于理解了
|
||
- (NSFetchedResultsController *)fetchedResultsController
|
||
{
|
||
if (_fetchedResultsController)
|
||
{
|
||
return _fetchedResultsController;
|
||
}
|
||
|
||
self.fetchedResultsController = [Leas.note fetchedResultsControllerWithPredicate:nil
|
||
withController:self
|
||
notebook:self.notebook tag:self.tag
|
||
isBlog:self.isBlog
|
||
]; // [self fetchedResultsControllerWithPredicate:nil];
|
||
return _fetchedResultsController;
|
||
}
|
||
|
||
- (NSFetchedResultsController *)searchedResultsController
|
||
{
|
||
if( _searchedResultsController )
|
||
{
|
||
return _searchedResultsController;
|
||
}
|
||
|
||
self.searchedResultsController = [Leas.note fetchedResultsControllerWithPredicate:nil withController:self
|
||
notebook:self.notebook
|
||
tag:self.tag
|
||
isBlog:self.isBlog]; // [self fetchedResultsControllerWithPredicate:nil];
|
||
return _searchedResultsController;
|
||
}
|
||
|
||
// 当改变控制器管理的对象后引起了列表section的变化，此时监视器就会调用这个协议函数。
|
||
- (void)controller:(NSFetchedResultsController *)controller
|
||
didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo
|
||
atIndex:(NSUInteger)sectionIndex
|
||
forChangeType:(NSFetchedResultsChangeType)type
|
||
{
|
||
|
||
UITableView *tableView = nil;
|
||
|
||
if(controller == self.fetchedResultsController)
|
||
tableView = self.tableView;
|
||
else
|
||
tableView = self.searchDisplayController.searchResultsTableView;
|
||
|
||
switch(type)
|
||
{
|
||
case NSFetchedResultsChangeInsert:
|
||
[tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex]
|
||
withRowAnimation:UITableViewRowAnimationFade];
|
||
break;
|
||
|
||
case NSFetchedResultsChangeDelete:
|
||
[tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex]
|
||
withRowAnimation:UITableViewRowAnimationFade];
|
||
break;
|
||
}
|
||
|
||
}
|
||
|
||
// 当fetchedResultsController发现指定的对象有改变时，监视器会调用这个协议方法。这里改变的类型从列表中体现有 更新、插入、删除或者行的移动。因此这个方法要实现所有的这些方法，以应对任何一种改变。下面是这个方法的标准实现
|
||
- (void)controller:(NSFetchedResultsController *)controller
|
||
didChangeObject:(id)anObject
|
||
atIndexPath:(NSIndexPath *)indexPath
|
||
forChangeType:(NSFetchedResultsChangeType)type // 改变的类型
|
||
newIndexPath:(NSIndexPath *)newIndexPath
|
||
{
|
||
UITableView *tableView = nil;
|
||
|
||
if(controller == self.fetchedResultsController)
|
||
tableView = self.tableView;
|
||
else
|
||
tableView = self.searchDisplayController.searchResultsTableView;
|
||
|
||
switch(type)
|
||
{
|
||
case NSFetchedResultsChangeInsert: // 插入
|
||
[tableView insertRowsAtIndexPaths:@[newIndexPath]
|
||
withRowAnimation:UITableViewRowAnimationFade];
|
||
break;
|
||
|
||
case NSFetchedResultsChangeDelete: // 删除
|
||
[tableView deleteRowsAtIndexPaths:@[indexPath]
|
||
withRowAnimation:UITableViewRowAnimationFade];
|
||
break;
|
||
|
||
case NSFetchedResultsChangeUpdate: // 改变
|
||
{
|
||
NSLog(@"note has changed NSFetchedResultsChangeUpdate");
|
||
NSLog(@"indexPath: %ld", indexPath.row);
|
||
/*
|
||
id <NSFetchedResultsSectionInfo> sectionInfo = [[controller sections] objectAtIndex:0];
|
||
[sectionInfo numberOfObjects];
|
||
*/
|
||
|
||
// 这里有问题?
|
||
Note *note = [controller objectAtIndexPath:indexPath];
|
||
[self configureCell:[tableView cellForRowAtIndexPath:indexPath] forNote:note];
|
||
|
||
break;
|
||
}
|
||
case NSFetchedResultsChangeMove:
|
||
[tableView deleteRowsAtIndexPaths:@[indexPath]
|
||
withRowAnimation:UITableViewRowAnimationFade];
|
||
[tableView insertRowsAtIndexPaths:@[newIndexPath]
|
||
withRowAnimation:UITableViewRowAnimationFade];
|
||
break;
|
||
}
|
||
}
|
||
|
||
// 数据将要改变
|
||
// 当控制器监控的数据发生改变时，如对象被删除，有插入，更新等，监视器会在数据发生改变前意识到这个情况，此时就会调用这个函数。往往我们用列表的形式表现数据，此时意味着屏幕上的数据即将过时，因为数据马上要改变了，这是这个协议方法的工作就是通知列表数据马上要更新的消息，往往代码是这样实现的。
|
||
- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller
|
||
{
|
||
UITableView *tableView = nil;
|
||
if(controller == self.fetchedResultsController)
|
||
tableView = self.tableView;
|
||
else
|
||
tableView = self.searchDisplayController.searchResultsTableView;
|
||
|
||
[tableView beginUpdates];
|
||
}
|
||
|
||
// 已经改变
|
||
// 当fetchedResultsController完成对数据的改变时，监视器会调用这个协议方法。在上面提到的情况，这个方法要通知列表数据已经完成，可以更新显示的数据这个消息，因此通常的实现是这样的
|
||
- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller
|
||
{
|
||
UITableView *tableView = nil;
|
||
if(controller == self.fetchedResultsController)
|
||
tableView = self.tableView;
|
||
else
|
||
tableView = self.searchDisplayController.searchResultsTableView;
|
||
|
||
[self noteTitle];
|
||
[tableView endUpdates];
|
||
}
|
||
|
||
#pragma mark - Add Note
|
||
|
||
- (IBAction)addNoteButtonPressed:(UIBarButtonItem *)sender
|
||
{
|
||
NSLog(@"[%@ %@]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
|
||
|
||
if(self.splitViewController)
|
||
{
|
||
}
|
||
else
|
||
{
|
||
[self performSegueWithIdentifier:@"addNote" sender:self];
|
||
}
|
||
}
|
||
|
||
#pragma mark - Title Length Method
|
||
|
||
- (NSUInteger)titleLength
|
||
{
|
||
// default table view title length
|
||
NSUInteger titleLen = 24;
|
||
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad)
|
||
{
|
||
titleLen = 24;
|
||
}
|
||
else
|
||
{
|
||
// if we are a phone and turned landscape we want to give the user a bit more
|
||
// title info
|
||
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
|
||
if(UIInterfaceOrientationIsLandscape(orientation))
|
||
titleLen = 36;
|
||
}
|
||
|
||
return titleLen;
|
||
}
|
||
|
||
// 这种方式不靠谱, 因为内存的优化, 很可能得不到caller
|
||
|
||
// ipad下search bar上移, 但navigation却不隐藏
|
||
// ipad下模拟没有navigationController, 但是SWTableViewCell selectCell 要用到
|
||
// http://stackoverflow.com/a/5860412/4269908
|
||
/*
|
||
- (UINavigationController *)navigationController {
|
||
if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
|
||
NSString *sourceString = [[NSThread callStackSymbols] objectAtIndex:1];
|
||
// Example: 1 UIKit 0x00540c89 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
|
||
NSCharacterSet *separatorSet = [NSCharacterSet characterSetWithCharactersInString:@" -[]+?.,"];
|
||
NSMutableArray *array = [NSMutableArray arrayWithArray:[sourceString componentsSeparatedByCharactersInSet:separatorSet]];
|
||
[array removeObject:@""];
|
||
|
||
// Array[3] == class caller
|
||
if([array[3] isEqualToString:@"UISearchDisplayController"]) {
|
||
return nil;
|
||
}
|
||
}
|
||
return [super navigationController];
|
||
}
|
||
*/
|
||
|
||
// 搜索
|
||
#pragma mark - UISearchDisplayDelegate Methods
|
||
|
||
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
|
||
{
|
||
// NSLog(@"[%@ %@]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
|
||
|
||
NSString *searchPredicate = [NSString stringWithFormat:@"(title contains[cd] '%@' or content contains[cd] '%@')", searchString, searchString];
|
||
|
||
self.searchedResultsController = [Leas.note fetchedResultsControllerWithPredicate:searchPredicate
|
||
withController:self
|
||
notebook:self.notebook
|
||
tag:self.tag
|
||
isBlog:self.isBlog];
|
||
|
||
// Return YES to cause the search result table view to be reloaded.
|
||
return YES;
|
||
}
|
||
|
||
- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller
|
||
{
|
||
if (!IS_IPAD) {
|
||
[self setBarStyleBlack];
|
||
self.isSelectOnSearch = YES;
|
||
}
|
||
}
|
||
|
||
- (void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller
|
||
{
|
||
NSLog(@"[%@ %@]", NSStringFromClass([self class]), NSStringFromSelector(_cmd));
|
||
self.searchedResultsController.delegate = nil;
|
||
self.searchedResultsController = nil;
|
||
[controller.searchResultsTableView reloadData];
|
||
|
||
// 为什么要reload ?
|
||
// [self.tableView reloadData];
|
||
if (!IS_IPAD) {
|
||
[self restoreBarStyle];
|
||
|
||
self.isSelectOnSearch = NO;
|
||
}
|
||
}
|
||
|
||
#pragma mark - UISearchBarDelegate Methods
|
||
|
||
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
|
||
{
|
||
//self.searchedResultsController = nil;
|
||
}
|
||
|
||
// 开始要输入了
|
||
-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar{
|
||
return YES;
|
||
}
|
||
|
||
// http://blog.csdn.net/swj6125/article/details/21741733
|
||
// 亲测UISearchBar Delegate的11个方法和UISearchDisplay Delegate的12个方法的调用顺序
|
||
|
||
@end
|