Android :: How To Store _ Retrieve Data From Database When Device Is In Offline
Aug 4, 2010
I need to store and retrieve data from database when the device is in offline.When i run my application when the device have internet it fetches data and shows it user,but i also need the same output when the device is in offline by saving previously obtained data in database,anyone help me to implement it in my application.
I need to store an retrieve a vector of an unknown number of objects in an android sqlite database. Essentially, the setup is this: I am developing a task management app, where the user can add as many notes as they like to their tasks. My current setup uses one database, with one row per task. This presents a problem when I need to associate multiple notes and their associated information with one task. I can see two approaches: try to store an array of notes or a vector or something as a BLOB in the task's row, or have another notes database in which each row contains a note and it's info, as well the id of the task which the note belongs to. This seems a little easier to implement, as all I would have to do to retrieve the data would be to get a cursor of all notes matching a particular id and then iterate through that to display them to the user. However, it seems a little inefficient to have a whole new database just for notes, and it makes syncing and deleting notes a little more difficult as well. What do you think? Is it worth it to have a separate notes database? Should I use a BLOB or go for the separate database? If a BLOB, are there any good tutorials out there for storing and retrieving objects as BLOBs?
I am using ganymade eclipse 3.4 IDE and android sdk for development . I am trying to store static database file with some values on it in sqlite format. how can i add this file into the IDE and fetch the data from that file and store it . give me the guidance to do the development.
how do i do it that for exmaple. we have a main.xml that have 1 text field for entering a name for example A and when we press a button lets say button 1. it will retreive A's data from database and display on main.xml's textview.
I want to have a list of restaurants with information such as addresses and phone numbers in my app. I also want to be able to edit this information after the app is published. What is the standard way for doing this? Would I need to use a SQLite database?
We want to store credentials for a user to a web service so the user doesn't have to repeatedly login, but we're concerned about security. We can't store a hash on the database, but we could probably use JCE encryption locally.
Is the content in SharedPreferences secured on the Android device?
Tonight I was setting another album to offline in Spotify when it reported I ccouldn't save any more music. Bit puzzled seeing as i've got a 16gb SD card in there. Turns out Spotify is only using the internal SD card :S totally burnt out my 8gb already! I see no option in Spotify to select where to place the offline store, anyone else in the ssame 8gb boat?
I'm writing an application wherein users will sometimes make orders through it. I want to give users the option to save their billing info (name, address, etc.) so that it can be quickly restored later if they want to make another order. The user will enter a password to secure the data. Obviously I can't just put this as a file on the device, as anyone can root/find the data. Is there a built-in Android method for storing secure data that is locked with a password? If not, what is a good place to start for storing this data securely using Java?
I am trying to post data to the Blob Store on google's app engine, this code runs without throwing any exceptions, but on the blobstore end there is no log on the post request at all. The server side stuff works when i post using a form (albeit with mime data). I have allowed my android app to use internet. This is a stab in the dark but if any of you folks might have had an issue like this before perhaps the problem i am having might ring a bell
I want manage our web application using an android application. we want to the database connection object. we are using mysql database. and i want to post the data to my server. so please help me for this solution.
I'd like to use an existing sqlite3 database created outside of the phone, on a computer reachable by Wifi. I know how to download the file using Socket. The problem I see is that android.database.sqlite classes access databases only in /data/data/<package_name>/databases and it does not seem to be possible to write files directly in there. Is there a way to write a file in /data/data/<package_name>/ databases or ask the android.database.sqlite classes to read a database from another place?
I create database using sqlite in command prompt. In my login screen user can enter loginid and password. then click the login button. while click the button I need to check that ..if login successful I need to retrieve other details from the same table . How can i achieve this. is there any sample code...
I want to write an dictionary application for Android. I want it offline with at least 5000 words. My questions are:
What should I use to store my words, I mean is it a good idea to create an ArrayList, hashmap etc? If not then why and what do you propose? The more important thing for me this this how to create a database to store the words which will be at least 5000 I want the apps to work fast and work offline no need of network.
While iterating through my contacts database, the first Name (GIVEN_NAME) always returns an integer while the last Name (FAMILY_NAME) always returns null. I am running on HTC Incredible. What am I doing wrong? Code...
I want to store Location objects into my database, and then be able to load them. How can I build a Location object from its attributes? Should I create a blank Location and then set the attributes? (If yes, how?) Should I use my database as a Location Provider? (If yes, how?) Code...
I have this database file under the usual databases folder and a bunch of tables inside it. Please note that I don't want to retrieve under the command line. I know I can use the ".tables" command. I want to retrieve a list of all tables in it, using code, so that I can execute some specific algorithms on each of them. Also, I didn't find any questions with this problem on Android, so please forgive me if there is any. I was wondering if there is any function I can use under Databases, but I didn't find any either.
I'm using a SQLite database to store information on players and their teams using android. I've got it working so that all the players I've created will show up when ever I start my program, so the database is working. So far, so good. However, whenever I try to retrieve the rowId of a player from the database, it always gives me 0 back. This surprises me in itself, since I'd think I'd get an error if I wasn't accessing it from the cursor correctly, but instead it gives me 0. After debugging for a while, I realized that the Player object (not in database) also wasn't saving the id correctly, although it was finding a value for it. This was corrected when I set the id after creating the object, although it seems I would be able to set it in the creation statement itself. Curiouser and curiouser. Code...
I need to fill in edit boxes with first and last name.i want dabatabase which saves these once i fill the edit boxes and teh nxt tym i enter a single character it should retrieve that name.Plz provide code to me.
I'm making an Android Java app game (although this question applies to all languages really) and hope to release the first version soon. I'm nervous about how I save data in my game. My problem is that, if in a later update, I decide to store more data or store the same data in a different way, I need to be careful I don't lose or corrupt data for users that upgrade (i.e. I want users to be able to use data created by an old version in the new version, like their high scores from before).For example, say I want to save high scores in version 1.
I want to retrieve data from the existing sqllite and query it and show the values in listview. my sqllite db has four columns naming emp id, emp name, salary, designation. i want to show the list of employees in a listview and on list item click query from db and by sending that particular emp id and show the name, salary and designation in the textviews in another screen.