IOS開發(fā) 閱讀器類APP可用開源框架介紹

1、繼續(xù)介紹一個有用的TableView中全選單元格的例子，里面的方法可以用在閱讀器中用 戶對閱讀內(nèi)容來源的選擇上，如圖所示：運(yùn)營高令全選運(yùn)營高宇取消核心代碼如下:objc view plaincopy1.2.3.4.5.6.-(void)viewDidLoadsuper viewDidLoad;/創(chuàng)建表視圖_table_table = UITableView allocinitWithFrame:CGRectMake(0, 64, 320, 500) s tyle:UITableViewStylePlain;7.8.9.10._table.delegate = self;_table.dataS

2、ource = self;self .view addSubview:_table;11.12.13.14./將字典NO- checked裝入可變數(shù)組中，來控制單元格左邊對勾視圖 _contacts = NSMutableArray array;for (int i = 0; i 10; i+) NSMutableDictionary *dic = NSMutableDictionary dictionary;15.16.17.18.19.20.21.22.23.24.25.1.2.3.4.5.6.dic setValue:NO forKey:checked;_contacts addObje

3、ct:dic;/創(chuàng)建屏幕左上方的全選按鈕_button = UIButton buttonWithType:UIButtonTypeRoundedRect;_button setTitle :全選forState:UIControlStateNormal;_button.frame = CGRectMake(10, 10, 100, 50);_button addTarget:self action:selector(allSelect:) forControlEvents:UIControlEventTouchUpInside;self.view addSubview:_button; ob

4、jc view plaincopy/全選按鈕的觸發(fā)事件-(void)allSelect:(UIButton*)sender將表視圖的所有的單元格放在數(shù)組里NSArray *anArrayOfIndexPath = NSArray arrayWithArray:_table indexPathsForVisibleRows;7.8.9.10.11.12.13.14.15.16.17.)18.19.20.21.22.23.24.25.26./27.ifh:indexPath;for (int i = 0; i anArrayOfIndexPath count; i+) /得到表視圖的indexPa

5、thNSIndexPath *indexPath= anArrayOfIndexPath objectAtIndex:i;/創(chuàng)建每個單元格，LTableViewCell *cell = (LTableViewCell*)_table cellForRowAtIndexPatNSUInteger row = indexPath row;NSMutableDictionary *dic = _contacts objectAtIndex:row;/判斷當(dāng)前按鈕的狀態(tài)是全選還是取消，設(shè)置不同的標(biāo)記if (UIButton*)sender titleLabel text isEqualToString

6、:全選dic setObject:伊YES forKey:checked;cell setChecked:YES;else dic setObject:伊NO forKey:checked;cell setChecked:NO;兩種狀態(tài)的切換(UIButton*)sender titleLabel text isEqualToString:全選)28.29.30.31.32.33.34.35.36.37.38.39.40.41.for (NSDictionary *dic in _contacts) dic setValue:YES forKey:checked; (UIButton*)sen

7、der setTitle:取消 forState:UIControlStateNormal;elsefor (NSDictionary *dic in _contacts) dic setValue:NO forKey:checked;(UIButton*)sender setTitle:全選forState:UIControlStateNormal; objc view plaincopy1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.-(UITableViewCell *)tableView:(UITableView *)t

8、ableView cellForRowAtIndexPat h:(NSIndexPath *)indexPathstatic NSString * identifier = Cell;/創(chuàng)建單元格LTableViewCell * cell = tableView dequeueReusableCellWithIdentifier:ide ntifier;if (cell = nil) cell = LTableViewCell allocinitWithStyle:UITableViewCellStyleDefa ult reuseIdentifier:identifier;NSUIntege

9、r row = indexPath row;NSMutableDictionary *dic = _contacts objectAtIndex:row;if (dic objectForKey:伊checked isEqualToString:NO) dic setObject:NO forKey:checked;cell setChecked:NO;else dic setObject:YES forKey:checked;cell setChecked:YES;return cell;23.objc view plaincopy1.2.3.4.5.-(void)tableView:(UI

10、TableView *)tableView didSelectRowAtIndexPath:(NSIndexP ath *)indexPathtableView deselectRowAtIndexPath:indexPath animated:YES;LTableViewCell *cell = (LTableViewCell*)tableView cellForRowAtIndexPath6.7.8.9.10.11.12.13.14.15.16.17.18.19.:indexPath;NSUInteger row = indexPath row;NSMutableDictionary *d

11、ic = _contacts objectAtIndex:row;/創(chuàng)建單元格左邊的打鉤視圖if (dic objectForKey:伊checked isEqualToString:NO) dic setObject:YES forKey:checked;cell setChecked:YES;else dic setObject:NO forKey:checked;cell setChecked:NO;在 LTableViewCell 中objc view plaincopy1.2.3.4.5.6.7.8.5.09.10.11./用checked來判斷是否加上對勾視圖-(void)setChecked:(BOOL)checkedif (checked)m_checkImageView.image = UIImage imageNamed:Selected.png;self.backgroundView.backgroundColor = UIColor colorWithRed:223.0/25 green:230.0/255.0 blue:250.0/255.0 alpha:1.0;else12.13.14.15.16.17.18.