####iOS7 Programming Cookbook 第四章 Constructing Headers and Footers in Table Views
#####ViewController.m1
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static NSString *CellIdentifier = @"CellIdentifier";
@interface ViewController () <UITableViewDelegate, UITableViewDataSource>
@property (nonatomic, strong) UITableView *myTableView;
@end
@implementation ViewController
//设置header，section0时为30
- (CGFloat) tableView:(UITableView *)tableView
heightForHeaderInSection:(NSInteger)section{
if (section == 0){
return 30.0f;
}
return 0.0f;
}
//设置footer，section0时为30
- (CGFloat) tableView:(UITableView *)tableView
heightForFooterInSection:(NSInteger)section{
if (section == 0){
return 30.0f;
}
return 0.0f;
}
//header标题
- (NSString *) tableView:(UITableView *)tableView
titleForHeaderInSection:(NSInteger)section{
if (section == 0){
return @"Section 1 Header";
}
return nil;
}
//footer标题
- (NSString *) tableView:(UITableView *)tableView
titleForFooterInSection:(NSInteger)section{
if (section == 0){
return @"Section 1 Footer";
}
return nil;
}
//Returns the table cell at the specified index path.
- (UITableViewCell *) tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = nil;
cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier
forIndexPath:indexPath];
cell.textLabel.text = [[NSString alloc] initWithFormat:@"Cell %ld",
(long)indexPath.row];
return cell;
}
//3rows in section
- (NSInteger) tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section{
return 3;
}
//iOS7电池状态栏 样式
-(UIStatusBarStyle)preferredStatusBarStyle
{
return UIStatusBarStyleLightContent;
}
-(void)viewWillLayoutSubviews{
//iOS7，UIScreen下降20像素，显示黑色电池栏
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
self.view.clipsToBounds = YES;
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenHeight = screenRect.size.height;
self.view.frame = CGRectMake(0, 20, self.view.frame.size.width,screenHeight-20);
self.view.bounds = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
}
}
- (void)viewDidLoad{
[super viewDidLoad];
//使用布局，显示扩展边缘
self.edgesForExtendedLayout = UIRectEdgeNone;
//初始化tableview，style为group类型
self.myTableView = [[UITableView alloc] initWithFrame:self.view.bounds
style:UITableViewStyleGrouped];
//注册cell类
[self.myTableView registerClass:[UITableViewCell class]
forCellReuseIdentifier:CellIdentifier];
//datasource，delegate指向ViewController
self.myTableView.dataSource = self;
self.myTableView.delegate = self;
//自动调整布局
self.myTableView.autoresizingMask = UIViewAutoresizingFlexibleWidth |
UIViewAutoresizingFlexibleHeight;
//添加到view
[self.view addSubview:self.myTableView];
}
@end
