lazy-loading

问题 I like to pass selected item value from ListView to another activity. I am using this code to get the details associated with the hashmap but I get java.lang.Integer cannot be cast to java.util.HashMap . public void onItemClick(AdapterView<?> parent, View view, int position, long id) { HashMap<String, String> o = (HashMap<String, String>) list.getItemAtPosition(position); Toast.makeText(CustomizedListView.this, "ID '" + o.get("KEY_TITLE") + "' was clicked.", Toast.LENGTH_SHORT).show(); } How

问题 I like to pass selected item value from ListView to another activity. I am using this code to get the details associated with the hashmap but I get java.lang.Integer cannot be cast to java.util.HashMap . public void onItemClick(AdapterView<?> parent, View view, int position, long id) { HashMap<String, String> o = (HashMap<String, String>) list.getItemAtPosition(position); Toast.makeText(CustomizedListView.this, "ID '" + o.get("KEY_TITLE") + "' was clicked.", Toast.LENGTH_SHORT).show(); } How

问题 In this component http://wwwendt.de/tech/dynatree/index.html under 5.4 Loading child nodes on demand ('lazy loading') it seems that the only way to load the tree nodes in a lazy manner is to grab them from web service. What if I want to grab the nodes from a data structure? such as: onLazyRead: function(dtnode){ dtnode.appendAjax({ //url: "sample-data2.json" //grab the nodes here from array }); } Any advice? Another question: when onLazyRead is executed, does the whole tree get re-rendered

问题 I am trying to load an Angular Module based on my role (when I am logged in). I tried it with an Angular Guard but that is not working, when it fails it does not go to the next route. const routes: Routes = [ { path: '', loadChildren: () => AuthModule // Load when not logged in }, { path: '', loadChildren: () => AdminModule // Load when admin }, { path: '', loadChildren: () => CrewModule // Load when crew } ]; Any ideas for how to fix this? I think an Angular Guard or using a matcher is not

问题 i have a question about the correct way to handle doctrine's lazy loading mechanism. I have an entity that references another one via @ManyToOne: class Entity { ... /** * @ManyToOne(targetEntity="AnotherEntity") * @JoinColumn(name="anotherEntityId", referencedColumnName="id") */ protected $anotherEntity; ... } class AnotherEntity { /** * @var integer $id * @Column(name="id", type="integer", nullable=false) * @Id * @GeneratedValue(strategy="IDENTITY") */ private $id; /** * @var string

问题 I have a lazy loaded module that I'm trying to add APP_INITIALIZER but its not firing. I have the exact same syntax as my main app where its working as expected. Does a lazy loaded module fire the APP_INITIALIZER? 回答1: No From the docs https://angular.io/api/core/APP_INITIALIZER A function that will be executed when an application is initialized The app is only initialized once, starting with the main module (the one that is bootstrapped) 回答2: Unfortunately APP_INITIALIZER is not called in a

问题 I'm trying to implement a lazy load for images that are inside a carousel created with the carouFredSel jQuery plugin. Do you have any advice or have you already achieved something similar? It seems that it can't do it by default. 回答1: @Stefano- what have you tried so far? (Show some code if you can). It will help us see exactly whats going on. As a rule of thumb with lazy loading, make sure you put a place holder image as the src in your html like: src="img/grey.gif" . This image can be

问题 I have a table that contains some blob fields that I don't want to load by default. In a dbml file it is possible to set the delay loaded property for such fields. Is there a similar option for external mapping files? 回答1: I'm not familiar with "external mapping files", but this is basically how you do lazy loading with LINQ-to-SQL: private System.Data.Linq.Link<String> _content; [Column(Name = "content", DbType = "NVarChar(MAX) NOT NULL", Storage = "_content")] public String Content { get {

问题 I have a table that contains some blob fields that I don't want to load by default. In a dbml file it is possible to set the delay loaded property for such fields. Is there a similar option for external mapping files? 回答1: I'm not familiar with "external mapping files", but this is basically how you do lazy loading with LINQ-to-SQL: private System.Data.Linq.Link<String> _content; [Column(Name = "content", DbType = "NVarChar(MAX) NOT NULL", Storage = "_content")] public String Content { get {

问题 I have currently moved my blogengine over from Linq2Sql to NHIbernate. I'm stuck at the following performance problem: I got one table: 'Posts', that has Id, Title, PostContent, DateCreated collumns and so on. The problem is that, when I'm creating the "Recent posts list", I don't want the whole PostContent . In Linq2Sql you can set lazy loading on a single property, so it won't be part of the SQL query until you actually ask for the property. I tried doing this with Fluent NHibernate, by