IOS开发 阅读器类APP可用开源框架介绍

1、继续介绍一个有用的TableView中全选单元格的例子，里面的方法可以用在阅读器中用 户对阅读内容来源的选择上，如图所示：运营高令全选运营高宇取消核心代码如下:objc view plaincopy1.2.3.4.5.6.-(void)viewDidLoadsuper viewDidLoad;/创建表视图_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./将字典NO- checked装入可变数组中，来控制单元格左边对勾视图 _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;/创建屏幕左上方的全选按钮_button = UIButton buttonWithType:UIButtonTypeRoundedRect;_button setTitle :全选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/全选按钮的触发事件-(void)allSelect:(UIButton*)sender将表视图的所有的单元格放在数组里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+) /得到表视图的indexPa

5、thNSIndexPath *indexPath= anArrayOfIndexPath objectAtIndex:i;/创建每个单元格，LTableViewCell *cell = (LTableViewCell*)_table cellForRowAtIndexPatNSUInteger row = indexPath row;NSMutableDictionary *dic = _contacts objectAtIndex:row;/判断当前按钮的状态是全选还是取消，设置不同的标记if (UIButton*)sender titleLabel text isEqualToString

6、:全选dic setObject:伊YES forKey:checked;cell setChecked:YES;else dic setObject:伊NO forKey:checked;cell setChecked:NO;两种状态的切换(UIButton*)sender titleLabel text isEqualToString:全选)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:全选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;/创建单元格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;/创建单元格左边的打钩视图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来判断是否加上对勾视图-(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.