Android : Interact With External SQLite Databases From Droid?
Jul 21, 2009I'm trying to work with a web service (that I have no control over) that returns a SQLite database when you query it. Is there any way to do this?
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View 1 Replies View RelatedAndroid :: Thread-safety When Creating Methods - Activities Which Interact With SQLite Database
Sep 20, 2010I am creating an app which allows for many different Activities to be started from a TabActivity(up to ~25). Most of the activities require data from the sqlite database, so when onCreate is run, an AsyncTask creates an SQLiteOpenHelper object(which will open a readable/writable database), runs a query, data is retrieved, and everything is then closed.
I was just testing messing around to see if i could break something, so i added every Activityto the TabActivity's TabHost. I then started mashing each tab as quickly as possible.
I noticed that very quickly i began to see in the LogCat: Caused by: android.database.sqlite.SQLiteException: database is locked: BEGIN EXCLUSIVE; and the app proceeded to die.
Typically there will only be about 4-6 tabs(i can just limit the user anyway) for the TabHost. I haven't been able to break anything with a small amount of tabs to mash, but i am still worried that maybe i am accessing the database in a poor way.
How can i prevent my SQLiteDatabase objects to cause a lock?
If i create a ContentProvider will that eliminate the possibility of database locking?
Do you have any suggestions for changes I could make for accessing data from an SQLiteDatabase?
I ended up taking the approach of using the Application class and storing 1 SQLiteOpenHelper and trying my best to keep it synchronized. This seems to be working great - i put all my 25 activities in the TabHost and mashed away on them with no errors.
I am calling ((SQLiteDbApplication)getApplication()).setDbHelper(new DBHelper(this, Constants.DB_NAME, null, Constants.DB_VERSION_CODE)); method(shown below) in every onCreate() in my activities
Any further suggestions to this approach or to the changes i made using this Application class?
CODE:...................
Android :: Including Extra Sqlite Databases?
Oct 30, 2009I have some external sqlite files I'd like to include with my app. It looks like I can add them to the /assets folder, then read them from there? Is the /assets folder the appropriate location for them?
I've used SQLiteOpenHelper to open databases my app creates at runtime, which just uses a unique db name. Will the sqlite files in the assets folder also be accessible using SQLiteOpenHelper in the same manner?
Android : View SQLite Databases On Device?
May 20, 2010Is there any tool that will allow me to browse databases on my Android device? Something like Sql Management Studio - you know GUI tool that displays databases, tables, row in tables, etc.
I'm using Eclipse for development (if it is important for plug-in suggestions).
Android : Do Apps Keep / Manage Their Own SQLite Databases (files)?
Aug 25, 2009Android includes a database engine (SQLite). In general, do the applications keep/manage their own databases (files) or is there a unifying database manager?
View 3 Replies View RelatedGeneral :: Add Existing SQLite Databases To Application
Feb 27, 2013I read some stuff about SQLite databases to use them within my own application. so for this point, it should work.
BUT:
for most of my data stuff i need a database that i can directly put into my application. i read on stackoverflow that it's possible to put up to 1,2mb files in the assets folder and then copy them anywhere else to use them.
my question is:
is it possible to acces those databases in the assets folder directly to read from them? there's no need to insert data into this database, it's just a data storage to read from? is it possible? and if it is than how could i do this?
SQLite Programming - Can't Find Databases Folder From File Explorer Through DDMS?
Jul 23, 2013I dont know why but somehow my adt didnt create any database folder.Here is the code i used :
package com.example.test;
import android.app.Activity;
import android.database.Cursor;[code]....
My problem is, i cant find databases folder from file explorer through DDMS.
Android : Can I Pull Databases Off Droid Onto Desktop?
Nov 17, 2010I'm trying this with my Nexus One.
I have the android SDK and have used the command
adb pull /data/data/com.myapp.android/databases C:pulls
but all I get is
pull: building file list...
0 files pulled. 0 files skipped.
Also, it seems no matter how much data I add to the tutorial NotePad app I installed, the data size for the app (as shown in Settings) never exceeds 8KB. How is this possible? Is there some other place where databases are stored? When I use the File Explorer view (that's part of ADT) in Eclipse, I see there's nothing in /data.
To add a twist, I have no trouble pulling any other files from the device. It's just databases I have trouble with.
Android : Access Contents Of Droid Emulator Databases?
Dec 26, 2009I've read the answer to a question as to how to access the contents of the databases, however I cannot seem to get it to work on my machine. Here is the shell log:
C:android-sdk-windows ools>adb -s emulator-5554 shell
# sqlite3 /data/data/com.android.demo.notepad2/databases/notes
sqlite3 /data/data/com.android.demo.notepad2/databases/notes
SQLite version 3.5.9
Enter ".help" for instructions
sqlite> .tables
.tables
sqlite> ^C
C:android-sdk-windows ools>
SQLite simply echos my commands back to me, even although the Eclipse file browser tells me it exists. If I use the sqlite3 tool and use ".tables" the commands are accepted.
Is the SQLite syntax different through the emulator is am I missing something?
Android : Where I Can Access Databases In Eclipse For Droid Development?
Jun 24, 2010I apologize if this is a stupid question, nevertheless I need to ask. I am new to Android development and have gone through every single tutorial and reference provided. I have been doing great, with the exception of one stupid problem; I cannot find where the databases for some apps are stored.
For example I would like to build my own app that includes thousands of pre-made records from an established SQLite Database. As a reference I tried to use the "Searchable Dictionary" app from the provided programs in the Android SDK, but cannot find it.
I read that all databases are stored in /data/data//databases on the device, but I cannot find this location. So how would I access the database in Eclipse or anywhere else for that matter to set up my pre-configured database?
Android :: Interact With The Call
Nov 1, 2010Today, the focus of a cell phone's capabilities is drifting away from plain making a phone call.
And somehow, this shows in the API's too. Therefor I'm wondering: if I want to write an app that e.g. pitches up, records, scrambles... an incoming call - you know, the voice on the other side -, what aspect of the API should I use?
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Android :: Interact With Scripting Environment From An App?
Oct 4, 2009I'd like to use python scripts as plugins for an app I'm developing. This seems to be possible by interacting with android-scripting-environment (ASE), as is done by Locale, but I haven't found any documentation about this. How you execute ASE scripts from your own app?
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Android :: ADB Access To Application Databases Without Root
Jan 16, 2010Can anyone tell me, is it possible to use the ADB to pull and push a database from an app, without root privileges on the phone? For example, I know the location on my rooted magic and dream is:
/data/data/com.xxxx.xxxx/databases/xxxx
I know that you can use ADB without root, but when trying to use the shell - you can't view that location without root privaliges. But I have been told you can use push and pull if you know the file you want? Basically I want to pull a database from MY app on a non rooted phone modify it and push it back on. Only trouble I have is, the two phones I have are both root and I don't have access to a non root one to try it out.
Android :: Want Sql Optimization Techniques For Databases Has Nearly 80,000 Records
Jul 14, 2009I want to know optimization techniques for databases that has nearly 80,000 records,
list of possibilities for optimizing
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