lazy-loading

Lazy download images into gridView

由 ℡╲_俬逩灬. 提交于 2019-11-26 16:11:44
In my application I need to download a lot of pictures from urls and display them in a gridView. (It can be between 1-200 pictures). I don't want to download all pictures at once. I read about lazy downloading and my question is: Can i get only one part of the Json, download the pictures in a different thread, and only if the user scroll down the gridView, I will continue to the other parts of the Json, and so on? Edit: Hi again. I want to implement multi select in this gridView and i'm having difficulty to implement the code in the getView() method of the adapter. This is the example i'm

Post-loading : check if an image is in the browser cache

由 若如初见. 提交于 2019-11-26 15:59:24
问题 Short version question : Is there navigator.mozIsLocallyAvailable equivalent function that works on all browsers, or an alternative? Long version :) Hi, Here is my situation : I want to implement an HtmlHelper extension for asp.net MVC that handle image post-loading easily (using jQuery). So i render the page with empty image sources with the source specified in the "alt" attribute. I insert image sources after the "window.onload" event, and it works great. I did something like this : $

AngularJS: lazy loading controllers and content

由 空扰寡人 提交于 2019-11-26 15:48:24
问题 In this simplified scenario, I have two files: index.htm, lazy.htm. index.htm: var myApp = angular.module('myApp', []); myApp.controller('embed',function($scope){ $scope.embed = 'Embedded Controller'; }); <div ng-controller="embed">{{embed}}</div> <div ng-include="'lazy.htm'"></div> lazy.htm myApp.controller('lazy',function($scope){ $scope.lazy = 'Lazy Controller'; }); <div ng-controller="lazy"> {{lazy}} </div> The result is an error: "Argument 'lazy' is not a function, got undefined" Using a

Lazy load images in UITableViewCell

由 两盒软妹~` 提交于 2019-11-26 15:06:13
I have some 50 custom cells in my UITableView. I want to display an image and a label in the cells where I get the images from URLs. I want to do a lazy load of images so the UI does not freeze up while the images are being loaded. I tried getting the images in separate threads but I have to load each image every time a cell becomes visible again (Otherwise reuse of cells shows old images) Apps like Facebook load images only for cells currently visible and once the images are loaded, they are not loaded again. Can someone please tell me how to duplicate this behavior. Thanks. Edit Trying to

infinite scroll with ember.js (lazy loading)

由 安稳与你 提交于 2019-11-26 15:00:00
问题 I have a view where there can be a large number of items for the user to scroll through and I'd like to implement infinite scrolling to enable progressive loading of the content. It looks like some folks have done pagination but Google doesn't bring up anyone discussing how they've done infinite lists with Ember/Ember Data. Anyone already worked through this and have a blog post/example code to share? 回答1: Were you aware of the newly released Ember.ListView component? https://github.com

What would cause the Entity Framework to save an unloaded (but lazy loadable) reference over existing data?

由 萝らか妹 提交于 2019-11-26 14:53:10
问题 I'm running into an interesting bug in my ASP.NET MVC 3 application using Entity Framework 4.1 Code First. I have three classes/tables that are joined in sequence. There's an Invitation that has a reference to a Project which then has a reference to Company . When I load a company and save it everything is fine. Same for projects. However when the invitation gets edited and saved, it wipes out the fields in the company. They're all just blank! When I edit the project, I need to show some info

Angular 4 Lazy loading with named router-outlet not working

由 老子叫甜甜 提交于 2019-11-26 14:31:51
问题 I have a problem with lazy loading not about to route to a named router-outlet. Can someone look at where I when wrong? I have a mainpage where there is a link to Product -> default router outlet and Product Detail -> named router outlet. <div> <div><a [routerLink]="['product']"> Product </a> </div> <div><a [routerLink]="['productdetail',{outlets:{productdetail: 'detail'}}]"> Product Detail </a> </div> <div> <router-outlet></router-outlet></div> <div> <router-outlet name="detail"></router

org.hibernate.LazyInitializationException at com.sun.faces.renderkit.html_basic.MenuRenderer.convertSelectManyValuesForModel

由 百般思念 提交于 2019-11-26 14:08:14
问题 Despite of FetchType.EAGER and JOIN FETCH , I get a LazyInitalizationException while adding some objects to a @ManyToMany collection via a JSF UISelectMany component such as in my case the <p:selectManyMenu> . The @Entity IdentUser , with FetchType.EAGER : @Column(name = "EMPLOYERS") @ManyToMany(fetch = FetchType.EAGER, cascade= CascadeType.ALL) @JoinTable(name = "USER_COMPANY", joinColumns = { @JoinColumn(name = "USER_ID") }, inverseJoinColumns = { @JoinColumn(name = "COMPANY_ID") }) private

How to solve the “Double-Checked Locking is Broken” Declaration in Java?

由 吃可爱长大的小学妹 提交于 2019-11-26 12:55:07
I want to implement lazy initialization for multithreading in Java. I have some code of the sort: class Foo { private Helper helper = null; public Helper getHelper() { if (helper == null) { Helper h; synchronized(this) { h = helper; if (h == null) synchronized (this) { h = new Helper(); } // release inner synchronization lock helper = h; } } return helper; } // other functions and members... } And I'm getting the the "Double-Checked Locking is Broken" declaration. How can I solve this? Pascal Thivent Here is the idiom recommended in the Item 71: Use lazy initialization judiciously of Effective

Disable lazy loading by default in Entity Framework 4

由 不想你离开。 提交于 2019-11-26 11:45:38
It seems that lazy loading is enabled by default in EF4. At least, in my project, I can see that the value of dataContext.ContextOptions.LazyLoadingEnabled is true by default. I don't want lazy loading and I don't want to have to write: dataContext.ContextOptions.LazyLoadingEnabled = false; each time I get a new context. So is there a way to turn it off by default, say, across the whole project? Slauma The following answer refers to Database-First or Model-First workflow (the only two workflows that were available with Entity Framework (version <= 4.0) when the question was asked). If you are
订阅 lazy-loading