【发布时间】：2014-07-08 20:05:53
【问题描述】：
我完全被困住了。我一直在寻找答案，似乎每个人对每个“嵌套推送动画可能导致导航栏损坏”错误都有不同的问题。
请记住，我正在尝试自学如何为 iOS 7 编写代码。因此，如果我的某些编码方法不理想，我很抱歉，请提供反馈。无论如何，我正在创建一个 Pokemon 集换式卡牌游戏 Pokedex 应用程序，该应用程序显示最新系列的卡片。除了我选择主屏幕上的第一个表格单元格（XY Flash Fire）外，一切都运行得完美无缺。它将显示正确的表格数据，但导航栏标题不正确。当我选择一行时，它也不会进入 PokedexDetailViewController。
同样，主屏幕中的所有其他表格单元格都可以正常工作。我还尝试了人们在此处和 github 上发布的其他修复和课程，但没有一个对我有用。我还重新创建了整个 FlashFireViewController，但仍然遇到同样的问题。确保所有代码与其他工作视图控制器几乎相同。还验证了 segues 来自 Set View Controller，与单元格相反。然而，一旦它在 Flash Fire View Controller 中，segues 就来自单元格。
还不能发图片，所以这里是我的屏幕截图的专辑链接：http://imgur.com/a/Dq9py
- 我的故事板是如何设置的。
- 应用启动后的主屏幕。
- 当我选择第二个单元格 (XY) 时。
- 当我选择 Mega Venusaur EX 时。
- **错误。当我选择第一个单元格（XY Flash Fire）时。它显示了正确的表格数据，但不是正确的导航标题。
- 当我选择 Butterfree 或任何其他口袋妖怪时，什么都没有发生，并且导航标题消失了。此外，一旦我回击，应用就会崩溃并停止。
这里是 TCGSetViewController.m 的代码，它是主屏幕的类。
@interface TCGSetViewController ()
@end
@implementation TCGSetViewController{
NSArray *thumbnailCell;
}
@synthesize tableView = _tableView;
- (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.
thumbnailCell = [NSArray arrayWithObjects:@"XYFlashFire.png", @"XYBaseSet.png", @"BWLegendaryTreasures", @"BWPlasmaBlast.png", @"BWPlasmaFreeze.png", @"BWPlasmaStorm.png", nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [thumbnailCell count];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 61;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"PokemonSetCell";
TCGSetCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[TCGSetCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.setImage.image = [UIImage imageNamed:[thumbnailCell objectAtIndex:indexPath.row]];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// Conditionally perform segues, here is an example:
if (indexPath.row == 0)
{
[self performSegueWithIdentifier:@"showFlashFireSet" sender:self];
}
if (indexPath.row == 1)
{
[self performSegueWithIdentifier:@"showXYBaseSet" sender:self];
}
else
{
[self performSegueWithIdentifier:@"showLegendarySet" sender:self];
}
}
这里是 FlashFireViewController.m 的代码，它是第一个表格单元格。
@interface FlashFireViewController ()
@end
@implementation FlashFireViewController{
NSArray *pokemons;
NSArray *searchResults;
}
@synthesize tableView = _tableView;
- (void)viewDidLoad
{
[super viewDidLoad];
Pokemon *caterpie = [Pokemon new];
caterpie.name = @"Caterpie";
caterpie.hitPoints = @"40 HP";
caterpie.setNumber = @"1/106";
caterpie.imageFile = @"1-caterpie.jpg";
caterpie.rarity = @"COMMON";
Pokemon *metapod = [Pokemon new];
metapod.name = @"Metapod";
metapod.hitPoints = @"70 HP";
metapod.setNumber = @"2/106";
metapod.imageFile = @"2-metapod.jpg";
metapod.rarity = @"UNCOMMON";
Pokemon *butterfree = [Pokemon new];
butterfree.name = @"Butterfree";
butterfree.hitPoints = @"130 HP";
butterfree.setNumber = @"3/106";
butterfree.imageFile = @"3-butterfree.jpg";
butterfree.rarity = @"RARE";
Pokemon *pineco = [Pokemon new];
pineco.name = @"Pineco";
pineco.hitPoints = @"60 HP";
pineco.setNumber = @"4/106";
pineco.imageFile = @"4-pineco.jpg";
pineco.rarity = @"COMMON";
Pokemon *seedot = [Pokemon new];
seedot.name = @"Seedot";
seedot.hitPoints = @"50 HP";
seedot.setNumber = @"5/106";
seedot.imageFile = @"5-seedot.jpg";
seedot.rarity = @"COMMON";
Pokemon *nuzleaf = [Pokemon new];
nuzleaf.name = @"Nuzleaf";
nuzleaf.hitPoints = @"80 HP";
nuzleaf.setNumber = @"6/106";
nuzleaf.imageFile = @"6-nuzleaf.jpg";
nuzleaf.rarity = @"UNCOMMON";
Pokemon *shiftry = [Pokemon new];
shiftry.name = @"Shiftry";
shiftry.hitPoints = @"140 HP";
shiftry.setNumber = @"7/106";
shiftry.imageFile = @"7-shiftry.jpg";
shiftry.rarity = @"RARE";
Pokemon *roselia = [Pokemon new];
roselia.name = @"Roselia";
roselia.hitPoints = @"60 HP";
roselia.setNumber = @"8/106";
roselia.imageFile = @"8-roselia.jpg";
roselia.rarity = @"COMMON";
Pokemon *roserade = [Pokemon new];
roserade.name = @"Roserade";
roserade.hitPoints = @"90 HP";
roserade.setNumber = @"9/106";
roserade.imageFile = @"9-roserade.jpg";
roserade.rarity = @"UNCOMMON";
Pokemon *maractus = [Pokemon new];
maractus.name = @"Maractus";
maractus.hitPoints = @"90 HP";
maractus.setNumber = @"10/106";
maractus.imageFile = @"10-maractus.jpg";
maractus.rarity = @"UNCOMMON";
pokemons = [NSArray arrayWithObjects:caterpie, metapod, butterfree, pineco, seedot, nuzleaf, shiftry, roselia, roserade, maractus, nil];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (tableView == self.searchDisplayController.searchResultsTableView) {
return [searchResults count];
} else {
return [pokemons count];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *pokemonTableIdentifier = @"PokemonTableCell";
TCGPokedexCell *cell = (TCGPokedexCell *)[self.tableView dequeueReusableCellWithIdentifier:pokemonTableIdentifier];
if (cell == nil)
{
cell = [[TCGPokedexCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:pokemonTableIdentifier];
}
Pokemon *pokemon = [pokemons objectAtIndex:indexPath.row];
if (tableView == self.searchDisplayController.searchResultsTableView) {
pokemon = [searchResults objectAtIndex:indexPath.row];
} else {
pokemon = [pokemons objectAtIndex:indexPath.row];
}
cell.pokemonLabel.text = pokemon.name;
cell.pokemonNum.text = pokemon.setNumber;
cell.thumbnailImageView.image = [UIImage imageNamed:pokemon.imageFile];
cell.pokemonHP.text = pokemon.hitPoints;
cell.pokemonRarity.text = pokemon.rarity;
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 61;
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"showPokedexDetail"]) {
NSIndexPath *indexPath = nil;
Pokemon *pokemon = nil;
if (self.searchDisplayController.active) {
indexPath = [self.searchDisplayController.searchResultsTableView indexPathForSelectedRow];
pokemon = [searchResults objectAtIndex:indexPath.row];
} else {
indexPath = [self.tableView indexPathForSelectedRow];
pokemon = [pokemons objectAtIndex:indexPath.row];
}
PokedexDetailViewController *destViewController = segue.destinationViewController;
destViewController.pokemon = pokemon;
}
}
- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:@"name contains[c] %@", searchText];
searchResults = [pokemons filteredArrayUsingPredicate:resultPredicate];
}
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
[self filterContentForSearchText:searchString
scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
objectAtIndex:[self.searchDisplayController.searchBar
selectedScopeButtonIndex]]];
return YES;
}
@end
这是我得到的确切错误代码：
2014-07-08 12:38:18.409 TCG Pokedex[37666:60b] nested push animation can result in corrupted navigation bar
2014-07-08 12:38:18.849 TCG Pokedex[37666:60b] Finishing up a navigation transition in an unexpected state. Navigation Bar subview tree might get corrupted.
2014-07-08 12:38:22.222 TCG Pokedex[37666:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Can't add self as subview'
*** First throw call stack:
【问题讨论】：
-
我看不出你的代码有什么问题，假设 TCGSetViewController 中的 segues 都是由你所说的控制器制成的。当您尝试同时执行两次推送时，通常会出现此错误，例如代码中的一次 segue 和一次手动推送，但我在您的代码中没有看到类似的内容。
标签： ios iphone objective-c xcode