By any chance, is there anyone who can help me? As currently I am doing my major project, and also a beginner in android and java. I am doing the login function for my project. I took
reference from here. However, one problem that I am facing now is I do not know how to grab the details (name and email column) from the database and display out these two information. Is there any guide on how to grab the information and display it out after the user have log in? Thank you very much.
1. Try using SQLite DataBase, which ships with Android.
2. Its simply a file with NO DATABASE SERVER.
3. This DB can be as small in size as 250KB.
For a quick and easy example see here:
http://android-er.blogspot.in/2011/06/simple-example-using-androids-sqlite_02.html
For understanding the queries look here:
http://mobile.tutsplus.com/tutorials/android/android-sqlite/
http://www.vogella.com/articles/AndroidSQLite/article.html
Related
I don't know if this is a super noob question, but I'm currently building an app from scratch with the knowledge i've gained so far, and I'm making a "Notes" app where You can create notes, delete, edit(update), etc etc.
The question I'm having is that I know I can use a database to store data from my input, and I know i can use A Database to save, open the data, but Just incase, does Java have a LocalStorage, like JavaScript/JSON where you can save things and open them up later?
If there is LocalStorage for applications to save data, and open it up after running again, what would be some good resources to read about it and learn it so I may integrate it into my application?
If there is no localstorage, I wan't to be able to perhaps allow the user to add images when creating notes, how would I be able to do that using a database?
As far that I know of there packages that allow you to store data as you intend, but following on your next question, you could possibly store the address/file name of the image you wants to add to the database. You could then use it to retrieve the image file and display it.
If you have any questions on image implementing images in java, reference this documentation and tutorial
If you have any more questions on working with databases, reference this documentation
I hope this helps.
I'm studying only recently Android.
I do not know if it's me, but I do not understand the Android sudio documentation regarding the contacts, I tried reading the few guides about it, and other articles, but I could not understand how it works.
Now I am only able to read some contacts and their information, but without being able to modify and delete them.
My purpose is to create a synchronization of contacts service.
The data to whom they are interested are: Name Number (Home, Work, Mobile, Mail).
If no one knows how to read the data correctly, edit, delete and create them would be very grateful, perhaps with a sample code.
Thank you.
You can get all the information from below link.
https://developer.android.com/guide/topics/providers/contacts-provider.html
I consider myself an accomplished programmer, but I'm relatively new to Android App development. I'm creating an application that will store information into the SQLite database used in Android. What I'd like to be able to do is be able to take a query of that data and export it either as a file of some sort or just send it to another iteration of the same application on a different phone. Then be able to have that phone import the same information into its own database, seeing that the information should line up correctly as long as it keeps it.
Can anyone provide some good starting examples of how I would best go about this and/or tutorials on how to go about doing it? Right now I'm just not sure how to get started and I could use some help to push me in the right direction, so I'd really appreciate the help.
Thank you ahead of time to anyone who replies.
and export it either as a file
depends on what kind of data you have. You can write any kind of text-based data using a RandomAccessFile for example.
send it to another iteration of the same application on a different
phone
You will need to have your own backend to do so. You could identify the target device by using GCM
My English's suck, please understand it.
I am a beginner in programming field.
What i am trying to make these day is making an Accommodation Booking website.
Here's my detailed idea,
I will make Booking System in my own server as well as database.
and then provide other accommodation website with some XMLs or like, so that they can see their own reservation information stored in my database on their website. I think this is possible.
but my goal is not only getting information from my own database, but also inserting a booking data into my database from their website without giving them my database access id/passwd.
I have completely no idea for this.,
can Anybody tell me which i need to know or learn for this, thank you good day.
Ideally, the other site would have a public API you could use to obtain its data.
Otherwise, you could use a screen scraping technique with cURL. Here's an example: http://devtrench.com/posts/screen-scrape-with-php-curl
I am trying to write a twitter application. I crawled the twits, and I now have stored it in a folder called Twits. And in the folder, it has text files containing the information of the tweets like userid, text, etc. How can I insert the folder, or the output into mysql database. Any help would be greatly appreciated. I am new to databases, and java itself, I have been stuck on this for a while now. Thank you.
I would recommend you to work through a tutorial like this one: http://www.developer.com/java/data/article.php/3417381
Your goal should be to reproduce what they're doing step by step. If you understand how to do mysql with Java you can then apply your new knowledge to your Twitter app.
Have fun!
Edit
SQL at w3schools: http://www.w3schools.com/sql/sql_intro.asp
PreparedStatement at Java tutorials: http://download.oracle.com/javase/tutorial/jdbc/basics/prepared.html