/*
---定制段---
1.定制导航栏
2.创建数据元
a .分配内存和初始化
3.写两个dataSource的协议方法
//定制段头。段头中是一个按钮， 在按钮的响应事件里边，处理响应多少行，进而控制是否可以折叠。
*/
#import "MyTableViewController.h"
@interface MyTableViewController ()
{
BOOL _sectionFlag[3];
}
@property (nonatomic) NSMutableArray *dataArray;
@end
@implementation MyTableViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self customNaviItam];
[self createDataSource];
//注册
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
//设置初始状态
for(NSInteger i=0;i<3;i++){
//NO表示折叠状态
_sectionFlag[i] = NO;
}
}
#pragma mark ------------------------定制导航Item
- (void)customNaviItam
{
self.navigationItem.title = @"QQ";
}
#pragma mark ------------------------创建数据源
- (void)createDataSource
{
//分配内存和初始化
self.dataArray = [[NSMutableArray alloc] init];
//创建第一个段
NSArray *section1 = [[NSArray alloc] initWithObjects:@"冯洪涛", @"徐晓臣",@"朱鹏",@"王亨景",nil];
//创建第二个段
NSArray *section2 = [[NSArray alloc] initWithObjects:@"18",@"12",@"27", nil];
//创建第三个段
NSArray *section3 = [[NSArray alloc] initWithObjects:@"女",@"男",@"其他", nil];
[self.dataArray addObject:section1];
[self.dataArray addObject:section2];
[self.dataArray addObject:section3];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return self.dataArray.count;
}
//设置行数
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
if(_sectionFlag[section] == NO){
return NO;
}
return [self.dataArray[section] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//需要注册，在最上边
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
cell.textLabel.text = self.dataArray[indexPath.section][indexPath.row];
return cell;
}
//定制段头
#pragma mark ------------------------custom section header
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
NSArray *textArray = @[@"我的好友",@"1510",@"qianfeng"];
UIButton *btn = [[UIButton alloc] init];
[btn setTitle:textArray[section] forState:0];
[btn setTitleColor:[UIColor redColor] forState:0];
btn.backgroundColor = [UIColor grayColor];
//btn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
//btn.titleEdgeInsets = UIEdgeInsetsMake(0, 30, 0, 0);
[btn addTarget:self action:@selector(onClick:) forControlEvents:UIControlEventTouchUpInside];
btn.tag = 100 + section;
return btn;
}
- (void)onClick:(UIButton *)btn
{
NSInteger section = btn.tag - 100;
// //改变falg
// if(_sectionFlag[section]==NO){
// _sectionFlag[section] = YES;
// }else{
// _sectionFlag[section] = NO;
// }
_sectionFlag[section] = !_sectionFlag[section];
[self.tableView reloadData];
}
#pragma mark ------------------------改变段头高度
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
//设置段头高度
return 40;
}
//- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
//{
// NSArray *textArray = @[@"1",@"2",@"3"];
// UILabel *label = [[UILabel alloc] init];
// label.frame = CGRectMake(0, 0, tableView.frame.size.width-50, 40);
// label.text = textArray[section];
// label.textColor = [UIColor redColor];
// //label.textAlignment = NSTextAlignmentCenter;
// label.font = [UIFont boldSystemFontOfSize:20];
// label.adjustsFontSizeToFitWidth = YES;
// label.backgroundColor = [UIColor whiteColor];
//
// return label;
//}
#pragma mark ------------------------设置段尾的高度
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
//设置段尾的高度
return 1;
}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
} else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end