新しいストーリーボードからビューコントローラのインスタンスを生成する。
#import <UIKit/UIKit.h> @interface AppDelegate : UIResponder <UIApplicationDelegate> @property (strong, nonatomic) UIWindow *window; @property (strong, nonatomic) UIViewController *viewController; @end
#import "AppDelegate.h"
#import "ViewController.h"
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:NSStringFromClass([ViewController class]) bundle:nil];
ViewController *viewController = [storyboard instantiateInitialViewController];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
self.viewController = navigationController;
self.window.rootViewController = navigationController;
[self.window makeKeyAndVisible];
return YES;
}
@end
選択行をスムーズに消すために、viewWillAppear:イベントメソッド内でdeselectRowAtIndexPath: animated:メソッドを呼び出す。
セルを再利用のためにdequeueReusableCellWithIdentifier:メソッドを使う。
画面遷移については、didSelectRowAtIndexPath:イベントメソッド内で実行する。
#import <UIKit/UIKit.h> @interface ViewController : UIViewController <UITableViewDataSource, UITableViewDelegate> @end
#import "ViewController.h"
#import "DetailViewController.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UITableView *tableView;
@end
@implementation ViewController {
@private
NSArray *_leagueKinds;
NSArray *_leagues;
NSArray *_leaguePrefixes;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
_leagueKinds = @[@"セントラル・リーグ", @"パシフィック・リーグ"];
_leagues = @[
@[@"ジャイアンツ", @"タイガース", @"ドラゴンズ", @"ベイスターズ", @"カープ", @"スワローズ"],
@[@"バッファローズ", @"ホークス", @"ファイターズ", @"マリーンズ", @"ライオンズ", @"ゴールデンイーグルス"]
];
_leaguePrefixes = @[
@[@"読売", @"阪神", @"中日", @"横浜DeNA", @"広島東洋", @"東京ヤクルト"],
@[@"オリックス", @"福岡ソフトバンク", @"北海道日本ハム", @"千葉ロッテ", @"埼玉西武", @"東北楽天"]
];
self.title = @"日本プロ野球チーム";
self.tableView.dataSource = self;
self.tableView.delegate = self;
}
- (void)viewWillAppear:(BOOL)animated
{
[self.tableView deselectRowAtIndexPath:self.tableView.indexPathForSelectedRow animated:YES];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return [_leagueKinds count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [_leagues[section] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
NSArray *teams = _leagues[indexPath.section];
NSArray *teamPrefixes = _leaguePrefixes[indexPath.section];
cell.textLabel.text = teams[indexPath.row];
cell.detailTextLabel.text = teamPrefixes[indexPath.row];
return cell;
}
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
static NSString *HeaderIdentifier = @"Header";
UITableViewHeaderFooterView *view = [tableview dequeueReusableHeaderFooterViewWithIdentifier:HeaderIdentifier];
if (!view) {
view = [[UITableViewHeaderFooterView alloc] initWithReuseIdentifier:HeaderIdentifier];
}
view.textLabel.text = _leagueKinds[section];
return view;
}
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return 40;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSArray *teams = _leagues[indexPath.section];
NSArray *teamPrefixes = _leaguePrefixes[indexPath.section];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:NSStringFromClass([DetailViewController class]) bundle:nil];
DetailViewController *detailViewController = [storyboard instantiateInitialViewController];
[detailViewController setTitle:teams[indexPath.row]];
[detailViewController setDetailItem:teamPrefixes[indexPath.row]];
[self.navigationController pushViewController:detailViewController animated:YES];
}
@end
[参考URL]
iOS View Controllerプログラミングガイド
