I want to develop a file encryption app, but I do not know how to begin and how to do. Hope some stagers could give me some thought and guidance. I am the new one for android.
You may want to look at the Java Cipher and Java CipherInputStream classes. Since I am a new member I cannot link you to the Java documentation on these, but doing a simple Google search should yield them as the first results.
With these you should be able to accomplish a file encryption application. Depending on your knowledge of encryption algorithms you may want to start by learning about DES as it is a little easier to implement with the Cipher classes.
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hi every body
im not developer or programmer but im so interest in developing android applications , i prepare my PC to that by downloading JDK , SDK and eclipse , i know how to use it and create the UI for app by XML in eclipse , my problem in writting the java codes for the objects in app for example , i know how to create button or text view or edit text but when i want that button to do action on click for example to save text to SD , I HAVE TO WRITE JAVA CODE FOR THAT SO WHEN I CLICKED THE BUTTON IT WILL SAVE THE TEXT TO SD , i dont know how to write java codes , is there is soft ware that perform that or java code generator to give the code for any object action i need , just finish the XML and give me codes directly . or i have to learn JAVE first then go for app developments
please help me
thanksssss
Get a book, duh!
If you really are interested in in developing for android, and I don't mean some half hearted effort, then learn how to code in java.
$1 gets you a reply
I would recommend "Introduction to Java Programming - A comprehensive version" by Liang and Pro Android 3.
I seriously recommend to begin with pure Java and then begin with Android development. You get a much deeper understanding in what you do then.
I'm currently doing a project to develop and implement an android application based on research. I'm new to this area and my knowledge is very limited, however I have basic knowledge only in Java. I really would appreciate if anyone could point me in the direction with relevant guides/tutorials on development of this specific application and the basic tools required as starting point.
The application is intended to do the following:
Works like an image gallery by default
Provide pattern authentication on one of the image the user selects from the gallery (Inital setup)
The pattern zone/click areas must be invisible to all (Including the intended user)
The user should be able to use that pattern over the image to unlock the application (without any trails/patterns visible)
Once authenticated, it must unlock the application and provide access to the user to use certain websites/information etc..
I would highly appreciate if I could get advice on how to go about this project.
Thanks in advance !
Superxan said:
I'm currently doing a project to develop and implement an android application based on research. I'm new to this area and my knowledge is very limited, however I have basic knowledge only in Java. I really would appreciate if anyone could point me in the direction with relevant guides/tutorials on development of this specific application and the basic tools required as starting point.
The application is intended to do the following:
Works like an image gallery by default
Provide pattern authentication on one of the image the user selects from the gallery (Inital setup)
The pattern zone/click areas must be invisible to all (Including the intended user)
The user should be able to use that pattern over the image to unlock the application (without any trails/patterns visible)
Once authenticated, it must unlock the application and provide access to the user to use certain websites/information etc..
I would highly appreciate if I could get advice on how to go about this project.
Thanks in advance !
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Did you read this sticky?
http://forum.xda-developers.com/showthread.php?t=667298
Hello everyone!
I am creating an application which needs access to root privileges in order to be able to modify Call Manager given in the Android OS framework.
While I have been able to create an sample application with the help of a platform signature, but this solution is ROM-specific and we really need a way to develop an application which works on multiple platforms.
Any ideas/pointers would be deeply appreciated.
Thanks,
Vincent
Hi all,
I am still looking for an answer, but in the meanwhile I found that sharedUserId uses platform signature for accessing internal/hidden classes.
This is exactly what we have been doing and would like to know if we can have an alternate way to access and modify internal classes without using platform signature.
Thanks
I see that most development chat here is for system software, kernel, etc.
I would like to begin writing apps for the Android OS. I have a GN2.
I've installed Eclipse and have installed the last few SDK versions.
I eventually want to build an app that will allow a user to log into a web site and retrieve data from a database file on the web server using other phones also.
I'm an old Visual Basic programmer and have a little C# familiarity. Don't know much Java at all.
What else might I need to download and install into Eclipse to be able to write an app to access a database file on a server?
Anyone know of any app templates that can I can download and start off from to learn the process of writing such an app?
The database will be mySQL probably. Could be an Access or Sql Server file.
Thanks in advance,
Barry
If you can't handle my level at autism, excuse my disturbing. I just want to obfuscate and shrink dex files on my android phone. I have googled it many times but what I have found was string, variable name encryptors and anti-RE tools. I have looked for a tool which does what I want as proguard does at this site, 4pda, alphagamers and various sites but I got nothing until now. Please help.