Greetings,
I want to create an easy app for Android as my academic project. I need to put few easy charts into it.
I've found that easy library could be KiChart, but the main creator of it seems to vanish, so I'm looking for library package and any tutorial.
Anyone of You posses KiChary package or help.pdf for it?
Or anyone can recommend me EASY to learn chart library with some tutorials? Remember I'm newbie in Android programomania
I need few line graphs, one pie, and that's basicly all.
Thank you in advance.
Thomas
I'd look into using a WebView and using d3.js - it's the gold standard for data visualization across pretty much all platforms. There's heaps of info on StackOverflow about it, too
Related
Hey,
Anyone got any links to some code samples for creating a panel using c++.
I have VS2008 and the SE SDK but the panel there only shows how to put some text on the panel and no more without a good explanation how to extend this to add images etc.
The html panel is limiting so rather not build a pabel with that.
So hope there is someone here who could contribute some source code / vs project so i could get on my way creating one, just not alot of information on the net about this that i can find, really wish SE would help us all out with better examples and a full list of pseudo codes for html panels, you think think they would given that this is the unique point to the xperia.
My wee x1 needs some love!!
Thanks in advance,
Andrew
Try looking for help on MSDN. Try searching for "Directdraw" or "GDI". Haven't found any better tutorial yet :S
Hey everyone; it wouldn't let me post in the development subforum due to the fact that I just joined, but I figured my topic would be just as relevant here.
I'm a sophomore CompSci major. Java is my strong point, but I'm far from a master. I know syntax, I know how to follow what's going on in more advanced programs, but writing them is the tough part. Anyway, I would like to create my first app; something simple. I was thinking a calculator with a small clipboard on the side (hold the button to store the number displayed in the window, hit it to place that value). It would be insanely helpful for my physics class.
So a few questions for you guys:
-Is there anything I should know beforehand? Anything to be careful of?
-Can I use Eclipse? I tried with App Inventor, and it's too limited.
-How do I obtain examples of more complex apps? Can I unpackage the apk files into java classes?
-Is there a site similar to the sun library, where it lists the available classes/objects/imports?
I'm sorry if I don't know the lingo just yet (of Droid or Java). Picking this all up is a little difficult for me, but I'm trying
Thank you in advance for even taking the time to read this. I understand rookies must aggravate you guys, but from what I've seen, the community has been nothing but welcoming!
You can definitely use Android SDK with Eclipse.
This guide will help you with install and set up process
http://developer.android.com/sdk/installing.html
SDK also contains sample projects that you can use for learning.
I don't remember about unpackaging apk files, but I'm pretty sure they contain already compiled .class files, which will be of no use to you.
And here's Android's reference page:
http://developer.android.com/reference/packages.html
Also the dev guide is very useful for learning the basics:
http://developer.android.com/guide/index.html
Resources section has useful tutorials as well!
Hope that helps. Good luck with your app!
Thank you, meshdub! And all branching from the same site; sure made me look bad...but on the upside, you've introduced me to a source I will be able to use throughout my software development lifetime.
If there's any more you or anyone else could give me as far as what to expect or look out for, please let me know! I'm honestly a little intimidated by this; I'm not too familiar with forums, and I've heard how difficult app developing can be.
But this should keep me occupied for a while, and again, thank you very much
The harvard university android app from google play store. (I can't seem to post any outside link yet for this account)
I want to create one for may school but I'm just starting to learn android programming, so guys I need your help on the topics that I need to study to create an app like that. I greatly appreciate any kind of comments. Cheers!
clonedaccnt said:
The harvard university android app from google play store. (I can't seem to post any outside link yet for this account)
I want to create one for may school but I'm just starting to learn android programming, so guys I need your help on the topics that I need to study to create an app like that. I greatly appreciate any kind of comments. Cheers!
Click to expand...
Click to collapse
Fragments, ListViews, JSON parsing (for communication with the web server to download news etc), Android SQLite databases (I suggest using this to store the information from the webserver locally so the app does not require a constant internet connection to view a news article for example), Google Cloud Messaging notifications, notifications, encryption.
There are lots more but these are some of the main ones. In addition I would not advise trying to copy the "look" or aesthetics of the Harvard application as it frankly looks disgusting, whoever designed that needs a course in UI design
any book suggestions?? im only studying at home and wanted to start studying android app development
m0nm0npalam0n said:
any book suggestions?? im only studying at home and wanted to start studying android app development
Click to expand...
Click to collapse
Android Application Development for Dummies and Learn Java for Android Development are 2 that I have in ebook form, though I can't say I've used them much as I don't really learn by reading books, more like looking at the source code of other apps and messing with it to see what happens
Android Application Development for Dummies goes through a wide range of topics including widgets, SQLite storage, possibly SharedPreferences (can't remember), ListView etc but does assume that you can at least follow what the sample code is doing - the sample code is commented but if you have not done any coding at all before then you probably should learn the basics of Java before reading it
Jonny said:
Android Application Development for Dummies and Learn Java for Android Development are 2 that I have in ebook form, though I can't say I've used them much as I don't really learn by reading books, more like looking at the source code of other apps and messing with it to see what happens
Android Application Development for Dummies goes through a wide range of topics including widgets, SQLite storage, possibly SharedPreferences (can't remember), ListView etc but does assume that you can at least follow what the sample code is doing - the sample code is commented but if you have not done any coding at all before then you probably should learn the basics of Java before reading it
Click to expand...
Click to collapse
thanks man! this really helps
Jonny said:
Fragments, ListViews, JSON parsing (for communication with the web server to download news etc), Android SQLite databases (I suggest using this to store the information from the webserver locally so the app does not require a constant internet connection to view a news article for example), Google Cloud Messaging notifications, notifications, encryption.
There are lots more but these are some of the main ones. In addition I would not advise trying to copy the "look" or aesthetics of the Harvard application as it frankly looks disgusting, whoever designed that needs a course in UI design
Click to expand...
Click to collapse
Thank you very much for the reply, I'm really thankful for the information that you share. Can you please clear this one for me?
I suggest using this to store the information from the webserver locally so the app does not require a constant internet connection to view a news article for example
Click to expand...
Click to collapse
clonedaccnt said:
Thank you very much for the reply, I'm really thankful for the information that you share. Can you please clear this one for me?
Click to expand...
Click to collapse
When you get data from a server to an Android app you use php for the server code - for example you can use php/mysql to run a search for calendar events in the database and return those events. Then you need to use php's JSON encode function to send the data in a JSON array.
The output should look something like this - this is the output of the calendar database for my school:
http://wgsb.cobainschofield.com/android_db/get_calendar.php (note this is not the live schools site, its the test server the guy who maintains the live site allows me to mess with err use).
You would then use a JSON parser class and an AsyncTask from within the app to "download" the content of the JSON array and then display it in a listview or textview etc.
Now obviously to get this information requires an internet connection yes? So every time someone wanted to check for an event on the calendar or read a news article for example they would need a working internet connection to receive the output of the get_calendar script, this is inefficient and bad design as it does not allow for offline viewing of the data.
Therefore what you can do is use androids SQLite implementation to create a local sql database then the first time you need to get the data from the webserver, you connect to the internet and get the output of the php script, the using the JSON parser class you store the information in the sqlite database then get the information from the database to display to the user.
By this way users can view news articles or calendar events offline and you only need to connect to the internet to refresh the information
I've uploaded screenshots in the attachments of how I've done it for my school's app.
That made it clear! Thank you very much.
Hi everybody,
So, I'm volunteering at a non profit and recently I was approached with a proposal about an app for the organization which would consist of a small questionnaire to tell people if we can help them. Something like:
o Are you between the ages of
o Do you live in
o Are you unemployed
o etc. etc.
And the radio buttons would work as check marks that depending whether these are checked or not, an if then would kick in and direct the user to another page, either proceeding instructions or a sorry, you do not meet the criteria.
I'm familiar with some coding, a little fortran, java script and php but I just have no clue how to create an app. I downloaded the developing tools from google but I'm just blank. Can someone point me on the right direction or maybe there are templates of this kind that need just a little tweaking. Any help would be greatly appreciated.
I'd suggest you creating just a web page
I have made a demo trogper.cf/surv_demo
No, that's the easy part, I'm still fresh on client side programming. What I want is an app for android.
Hello
Eclipse or Android Studio are necessary tools to develop native java apps for Android but you should have basic java (and at least OO language) notions to code it.
Get Eclipse or Android Studio.
Then...
There are loads of tutorials on the net for basic android/java programming.
For example...
mkyong.com/android/android-checkbox-example/
tutorialspoint.com/android/android_checkbox_control.htm
would get you started with your app.
you'll need to put www before the links, i'm new so not allowed to post links yet
If you want to simplify your life a little try NativeScript or Corona SDK.
Hi folks,
Newbie here, and I expect some bashing as I don't know the rules, but I did saw similar questions so started a thread here.
So, I have decompiled an apk file, and I can see that there are folders in 'src', and after googling a bit I can find some libraries like rebound in the 'com' folder of the decompiled apk. But I couldn't find other libraries as someone suggested me on twitter that devs at times obfuscate things( not sure of the obfuscation!).
I am a business guy, I know less in-depth tech stuff and I am trying to do this for a market research initiative. Is there any easy way to find libraries? For example, I learned about XML and read the structure and got information on one more library present in that APK. Is there a way as easy as this one?
Or incase, if there's a more difficult way, I am ready to learn that no matter what level of difficulty it brings. Hit me up folks!
NOTE: I'm not trying to steal any one's work. This is just a market research work.
You should analyze source code and look for relevant JARs.
Also you can use a software like Charles (charlesproxy com). It analyses all the HTTP traffic on your network, so you can run the app and then monitor the HTTP packets on Charles to detect all possible GET-requests to APIs.
hulak_aleksandr said:
You should analyze source code and look for relevant JARs.
Also you can use a software like Charles (charlesproxy com). It analyses all the HTTP traffic on your network, so you can run the app and then monitor the HTTP packets on Charles to detect all possible GET-requests to APIs.
Click to expand...
Click to collapse
Thanks for the information. I will try doing that. But will also give me information on obfuscated libraries?
What kind of library did you mention? If you looking for native libraries, you can Use an app developed by Savier, named Native Libs Monitor. Search it on Play store.
Check out http://appbrain.com, they got quite nice analytics on apps, including libraries any given app using (under Basic Information -> libraries tab)