私は状態の復元をいじっています。以下のコードでは、UITableViewController のスクロール位置が復元されますが、詳細ビューをタップすると (MyViewController のインスタンスをナビゲーション スタックにプッシュします)、アプリを再起動すると、常に最初のビューに戻ります。ナビゲーション スタックのコントローラー (つまり、MyTableViewController)。誰かが正しいView Controller（つまりMyOtherViewController）に復元するのを手伝ってくれますか?
AppDelegate.m
- (BOOL)launchWithOptions:(NSDictionary *)launchOptions
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
MyTableViewController *table = [[MyTableViewController alloc] initWithStyle:UITableViewStylePlain];
table.depth = 0;
UINavigationController *navCon = [[UINavigationController alloc] initWithRootViewController:table];
navCon.restorationIdentifier = @"navigationController";
self.window.rootViewController = navCon;
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
});
return YES;
}
- (BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
return [self launchWithOptions:launchOptions];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
return [self launchWithOptions:launchOptions];
}
MyTableViewController.m
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if(self)
{
self.restorationIdentifier = @"master";
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = @"Master";
self.tableView.restorationIdentifier = @"masterView";
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 5;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 10;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [NSString stringWithFormat:@"Section %d", section];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [NSString stringWithFormat:@"%d", indexPath.row];
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
MyOtherViewController *vc = [[MyOtherViewController alloc] initWithNibName:nil bundle:nil];
[self.navigationController pushViewController:vc animated:YES];
}
MyOtherViewController.m
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
self.restorationIdentifier = @"detail";
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = @"Detail";
self.view.backgroundColor = [UIColor redColor];
self.view.restorationIdentifier = @"detailView";
}