is there a way to store information (strings, numbers, booleans) on a webserver without using a database(mysql, sqlite, etc...) in android?
similar to how vb can read/write to a access "database" by only using a single file.
Thank you
You can write into json file as save it in server. For best approach, it is recommended to use database. Easier to do CRUD operations.
For store information into android application u can use SharedPreferences.about SharedPreferences
Or ,You can used a lib for store all data ObjectCache
Related
I want to store data locally in the phone after parsing it from JSON API and then make a button to synchronize that data whenever I need to so that the content can be used offline.
If you want to store data object locally, then you can make use of Realm DB. Below link explains how to use Realm DB https://www.androidhive.info/2016/05/android-working-with-realm-database-replacing-sqlite-core-data/
Right now, the best option to store bunch of data locally is using sqlite. You can search for it. There is a bunch of tutorials for it. Also, you can also use Room library which makes it really easy to create sqlite databases and interact with it.
I need to build an android application that communicates with a REST WebService. All operations will be performed online and there are few objects/data that need to be stored in the device memory. I run through RESTDroid but it seems to be "too much" for my needs. Should I store the objects in the file system/sd card? What are the advantages/disavantages of this approach?
Thanks.
If you have many same objects, that you receive from your web service, you should use SQLite database. If you have few objects you can serialize it and store in file or serialize it as JSON for example and store in SharedRreferences. I dont know the best way for you, but for me it would be SQLite database or SharedPreferences.
Good luck!
you can look into this tutorial in which he explained so beautifully to store SMALL RESTful data
I am developing a places of interest app which will display the list of places of interest in a location.
When user chooses one, it will display more information and address etc.
How do I store all this data? Currently I am using a text file to store all the data and subsequently when user chooses a place, it will parse the text file and retrieve the necessary data for display.
Any advice on what is a better way to do this? I looked at SharedPrefs, but it is more like storing "key-value" pair and in this case I need to store a large amount of data.
I want the info to be available even when the device is offline, thus I can't download from an online server upon request.
Any other way to do this?
You may store it to XML file using XML serializer, here is very good tutorial for learning that,
http://www.ibm.com/developerworks/library/x-android/
and it can be easily parsed using Java XPath Api. Have a look at this at parsing XML files
http://www.ibm.com/developerworks/library/x-javaxpathapi/
Use SQLite
It can store large data.
It is available offline.
All your problems will be sorted out.
Hre we have a wonderful tutorial for sq-lite
http://www.vogella.com/articles/AndroidSQLite/article.html
How about a relational database?
http://developer.android.com/training/basics/data-storage/databases.html
Take a look at Serialization. If you do not need database access, you could define a class what holds every information you need. Then, you can do the following:
when you need to save the datas, you serialize your object, dumping its content to a file, for example on the SD card
when you want to load the datas, you just load the above mentioned file, and get back everything from the dumped file
I am using this method in my app to cache some datas that would need internet access, so the user can still view it, and with proper implementation, this can work very nicely.
Use database, create table and insert all the data in it. When you need the data just fire the query, and you are done.
SQLite is fine for Android.
Depending on the type of data you want to store, you could use a SQLite Database (provided with Android) if it has a normal database structure. You could Serialize your data and save it in a raw or encrypted file, making you data implement Serializable.
We are developing an application in android,We have to save some lists and data to be used by application.We have saved it in sqlite and we use that data by using cursor.
Now my question :
What is more efficient to store data in we should continue with sqlite or to store data on strings.xml or we should use shared preferences ??
Sql Lite is for sharing your data as a datasource. It does not make sense
otherwise as you have the overhead of writing queries to serialize your objects.
Shared Preferences is a preferred way to store internal data.
You can't use assets as said by someone else before because its read only.
Well It Depends on your requirements. If your requirements are dynamic then you should try Sqlite for Storing the Datas.
You should use String.xml to store constant strings, which are not going to change easily ( i mean by increment or decrement of Strings ).
In your scenario, I think best way to store is in asset folder. Means store that data in txt file in key-value pair and while displaying in list, your just have to read that and display in the list. So that saving step can be avoided.
Shared Preferences are generally used to store primitive data. I'd suggest you to go with SQLite .
Actually i want to know how to store data from my app in the device so that i can review the store data when i run the application again..
means in simple terms i want to say that suppose i have text box where i write some information..now when i click the submit button, this information will be save,so that when i open the application the stored data should be appear in the text box..
In all terms i want to say that i just want to stored data in the way that we are using database for storing data..so please anyone suggest me how that can be done in android.
if possible show with an example
Regards
Anshuman
If you have to store small amount of data, you can use SharedPreferences in Android.
If the data that you have to store is big/complex enough, try using SQLite database.
Still need help?
UPDATE: There's a tutorial that I wrote to demonstrate how to use SQLite database. check it out here. Although it copies existing database into device's memory, but other versions of it, which create database through code can also be devised from it.
A better tutorial is here : http://www.vogella.com/tutorials/AndroidSQLite/article.html
1) If you want to store data in table format then you can use SQLite database in android
2) If you don't want to store data in table format then you can store in SharedPreference
more info about SharedPreference here and here
Android comes with a built in SQLite database that you can use. I advice you to go trough this notepad tutorial. It teaches the basics of using Android SDK including different states of the android application as well as how to use SQLite with Android.
For storing simple key = value pairs, you can use Properties.
For data storage as in a database, you can use sqlite on android.
Android provides several options for you to save persistent application data. The solution you choose depends on your specific needs, such as whether the data should be private to your application or accessible to other applications (and the user) and how much space your data requires.
Your data storage options are the following:
Shared Preferences
Store private primitive data in key-value pairs.
Internal Storage
Store private data on the device memory.
External Storage
Store public data on the shared external storage.
SQLite Databases
Store structured data in a private database.
Network Connection
Store data on the web with your own network server.
Data Storage