storage

问题 In Firefox 3.6 sessionStorage is not cleared when browser window is closed. Can it be configured to be automatically cleared when browser closes? It can be manually cleared on "onunload" event but still. 回答1: It is persisted by the session restoration feature in Firefox. If you don't use that, it should not be persisted. 回答2: Disabling session store will prevent session data to be saved in the future. I figure it will also delete the old data, since there does not appear to be an item for

问题 Sorry, this is a noobish question, but I was wondering where I would start if I wanted to create an app that saved the users settings from each time the app was openned. For example if I had a user who wanted to enter their favorite book into a text box and then that was saved to some array list that would save their previous entries what would be the best way to go about this task? Thank you for your time and looking and help! Also I would be doing this in c#. 回答1: You can use

问题 I am working on an app where i needed to move between view controllers a lot of time mostly making a loop but now i have to store some data(simple variable's and array's). I am currently storing them in the app delegate but i don't know if this is a great idea. i have looked online but i couldn't really tell what is the best solution for me. This is how i have it set up: Appdelegate: var aantalSpelers: Int! var namenSpelers = [String]() var youself = KaartenSpeler() var player2 =

问题 This is not a duplicate of Why is InnoDB table size much larger than expected? The answer to that question states that if I don't specify a primary key then 6 bytes is added to the row. I did specify a primary key, and there is more than 6 bytes to explain here. I have a table that is expecting millions of records, so I paid close attention to the storage size of each column. Each row should take 15 bytes (smallint = 2 bytes, date = 3 bytes, datetime = 8 bytes) CREATE TABLE archive ( customer

问题 I'm currently working on a game, where I need to create a transposition table for my AI. I implemented Hashtable so that the key to the Hashtable is a state under consideration and its corresponding value is the optimal next move. However, when I save the Hashtable in Android's internal storage and restore it next time, it seems to have some saved data, but the keys (i.e. game states) are different than the keys I have saved in the previous instance. Here is how I save and restore my data:

问题 So I would like to save some data on external storage on android. And I have looked at the the api where is says getExternalStoragePublicDirectory(String type) "This method will create the appropriate directory if necessary." These are the default directories: Music,Podcasts,Ringtones,Alarms,Notifications,Pictures,Movies,Download. So my question is: How do I create a new directory of my own? How can I make it invisible to the user? so that user will not get frustrated with the extra folder.

问题 I'm trying to get a List of external storages on android devices and in some devices the instruction System.getenv("SECONDARY_STORAGE"); returns null although the sd card is mounted in the device (4.1.1). I'm using the Dimitriy solution to do this and works fine but in some devices I'm having this problem. Someone know in what cases System.getenv("SECONDARY_STORAGE") can return null ? Thanks a lot 回答1: In my experiments, Some old HTC devices will returns null when you call System.getenv(

问题 Anybody knows ways to store data with javascript clients computer? Except using cookies. May be there is such lib ? By the way the data I want to be stored isn't secret if that matters. 回答1: You could use HTML 5 Local Storage. It's what the Stack Exchange network uses for global authentication. It's supported only by modern browsers but you could always gracefully fallback to cookies if not supported (IE8+, Chrome, Safari, FireFox 3.6+, and Opera 10.61+ are all supported). 回答2: You can use

问题 I am developing a Xamarin Form s which writes successfully an image to external storage and then should use it as Background of a ContentPage. In the constructor of the ContentPage I wrote this: this.BackgroundImage = "/storage/emulated/0/DCIM/D72D01AEF71348CDBFEED9D0B2F259F7.jpg" but the background image never shows. I checked the Android Manifest and the permissions of read and write external storage are set correctly. What am I missing? 回答1: The problem with your code is that

问题 I want automate eVault backup without login webCC. Are there APIs can configure agent, create jobs, confiure jobs and set schedule etc for eVault backup? From following links, they mentioned eVault backup can only do in webCC. https://knowledgelayer.softlayer.com/faqs/37#822 Using SoftLayer API to configure Evault Backup (configure agent, jobs, and schedule) But I still want confirm with you whether you support APIs to configure eVault backup now? because the above links are pasted at last