我正在开发一个具有大约8个视图并使用导航控制器进行导航的应用程序.第一个视图是主菜单.
如果用户按下主页按钮(应用程序确实输入背景),我想要(每个视图)弹出到主视图.
我知道AppDelegate方法applicationDidEnterBackground和applicationWillEnterForeground.
我知道popToRootViewControllerAnimated从导航控制器调用的方法.
我试图在applicationDidEnterBackground中使用popToRootViewControllerAnimated.喜欢:
[self.window.rootViewController.navigationController popToRootViewControllerAnimated:YES];
但这不起作用.
能告诉我这项工作的最佳选择吗？
我已经搜索了很多关于如何同步运行AFNetworking 2.0的示例和教程,并且只找到了AFNetworking 1.0的解决方案.我发现:AFNetworking可以同步返回数据(在一个块内)吗？
我的例子:
- (User *)getUserWithUsername: (NSString *) username andPassword: (NSString *) password {
NSDictionary *params = @{@"email": username, @"password": password};
[[DCAPIClient sharedClient] POST:@"login" parameters:params success:^(NSURLSessionDataTask * __unused task, id JSONResult) {
NSLog(@"JSON %@", JSONResult);
BOOL errorCode = [JSONResult objectForKey:@"error"];
if (!errorCode) {
self.username = [JSONResult objectForKey:@"name"];
// Fill the attributes
// self.email = .. a
} else {
// error with login show alert
}
} failure:^(NSURLSessionDataTask *__unused task, NSError *error) {
NSLog(@"error %@", error);
}];
// …我正在使用cakephp 3开发REST api,我发现了一个奇怪的行为.
我更改了routes.config,因此可以.json, .xml请求.我还在RequestHandler控制器初始化方法中加载了组件.
我在UsersController()中的注册操作
public function register()
{
$message = array('code' => '200', 'message' => 'The user could not be saved. Please, try again.');
$user = $this->Users->newEntity($this->request->data);
if ($this->request->is('post')) {
if ($this->Users->save($user)) {
$message = array('code' => '100', 'message' => 'The user has been registred');
}
}
$this->set([
'message' => $message,
'user' => $user,
'_serialize' => ['message', 'user']
]);
}
模型验证:
public function validationDefault(Validator $validator)
{
$validator
->add('id', 'valid', ['rule' => 'numeric'])
->allowEmpty('id', 'create'); …在我的应用程序中,我必须存储核心数据数据库.我在xcode项目导航器中有一些包含默认数据(audiofiles,maptiles等)的组和文件夹.
我发现很多关于阻止文件备份的事情:我做了什么:
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator
{
if (_persistentStoreCoordinator != nil) {
return _persistentStoreCoordinator;
}
NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"db.sqlite"];
NSLog(@"%@", storeURL.path);
NSError *error = nil;
_persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
//NSDictionary *options = @{NSMigratePersistentStoresAutomaticallyOption:@YES, NSInferMappingModelAutomaticallyOption:@YES};
/*NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
[NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];*/
if (![_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:nil error:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
[self addSkipBackupAttributeToItemAtURL:storeURL];
return _persistentStoreCoordinator;
}
- (NSURL *)applicationDocumentsDirectory
{
return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] …