Android :: Good Charting Library For Droid?
Aug 6, 2010
I have a need to render and display charts (bar charts for now, but more types may be needed later) in an Android app I'm working on. I've done some looking around and it doesn't look like there are any really good, mature charting libraries for Android yet.
Do you know any?
Edit to add some details of requirements
Bar Charts
Horizontal bar charts
Double stacked bar charts
Axis labels (including rotated 90 degrees on the y axis)
Labels above each bar on the chart
Shaded or custom backgrounds
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Jun 9, 2010
Specifically some that may cater to an experienced developer (C#) but not necessarily familiar with Java/Eclipse?I have seen a couple vids on YouTube but they are either short (not much you can learn in 3mins or patronizing)
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Feb 9, 2010
I'm an Android Developer and as part of my next app I will need to evaluate a large variety of user created mathematical expressions and equations. I am looking for a good java library that is lightweight and can evaluate mathematical expressions using user defined variables and constants, trig and exponential functions, etc.I've looked around and Jep seems to be popular, but I would like to hear more suggestions, especially from people who have used these libraries before.
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Nov 11, 2010
I have an Android library project that makes calls to PreferencesManager.getDefaultSharedPreferences.
I have 2 version of my app, paid/free, and they are not able to access the preferences stored by the library code.
Can someone tell me the right way to store values in SharedPreferences in library code and have the values available to projects that include the library?
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Aug 17, 2010
According to this SDK guide, unit-testing a Library project can be achieved by creating a standard application project, reference the Library project and then instrument the application for unit testing. However, when I do this and launch the test application I get the message.No tests found with test runner 'JUnit 3".I'm using Eclipse and the Android ADT plugin, all latest versions.the projects compile just fine. The test project also installs fine to the emulator. But in the console I can see that it looks for <library>.apk, which of course doesn't exist since I'm compiling this as a library into the test project.
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Aug 26, 2009
I created a jni library which depends the third shared library, I must copy the third shared library to /system/lib, otherwise, Java application can't load jni library. But you know, on G1 with official OS image, /system/lib is readonly. I tried to call System.setProperty to set java.library.path to the location stored the thired shared library before load jni library, but the issue still exists.
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Jul 15, 2010
As I understand, the three ways of distributing my application are via Jar, Android Library and Android Library Project.Jar - cannot contain resources or XML layouts (so this is out for me)Android Library - I don't really know how this works but the Google API uses it..Android Library Project - includes resources but allows the client free rein on the code as it is distributed as source.If I am to create a closed source application that requires drawables and XML files that I want to distribute to other Android programmers, what should I use? And can someone direct me to a tutorial on creating an Android Library?
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Jun 4, 2010
I need to make my client talk to a XML-RPC service. I found a couple of interesting ones on the web like android-xmlrpc. Have you used any such libraries in your code? Which library do you recommend?
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Sep 22, 2010
I've already written a game engine in java using eclipse and opengl es, I had one project (an android project) which contained both of my packages com.logic.engine com.logic.testapp I wanted a way to keep my engine and test app seperate, I've made an earlier post about how this is done, and I figured out how to reference one project in the build path of another (or just creating a jar file). My problem is that, lets say I now have my engine all wrapped up in an android project com.logic.engine, and now someone would like to use this engine to create a game, so they create an android project com.someclient.game, well now because we have one android project referencing another, it crashes everytime. Now obviously i need the android sdk in my engine package in order to reference things, but its also required on the client app, since the activity is what is actually being run by android. I guess my question is, how can i create a project for my game engine without it being an android project, but still referencing the android sdk, and without causing it to crash the client app using it?
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Apr 20, 2010
Is there a library, as it were, of Droid Apps? A place you can look while at your computer to see what the "thousands" of Droid apps are? Apparently Droid Market is only really accessible from your Droid device, which I don't have yet.
So, is anyone maintaining a more or less complete listing and description of all or most of the Droid Apps?
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Jun 12, 2010
I want to add a non-native shared library to Android so every application on the device would be able to use it. I mean using packaged classes just like a core library as if they were present in the application itself. I studied Android source code to figure out a way to add a new path to the application ClassLoader and found out that it is created during startup and there's no way to change the paths later. I can use my own ClassLoader, but all I will get after loading a class will be a reference to a Class object. This way I will be bound to work through reflection mechanism, which is slower than the native execution system Is there any way to organise a shared library on Android?
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Aug 20, 2010
I need a PDF library for manipulating a PDF documents, ( Creating PDF, image convertinng to PDF ) and things like that but in Android .
I tried the android itext port but the library project generates compile erorrs after I added it to my Project. Looks like it is still using some affinetransformation classes that are defined in awt.
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Oct 29, 2010
Is there a Java yaml library as good as snakeyaml for Android? (Or is anyone successfully using snakeyaml on Android already?)
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Apr 2, 2009
How to compile android app with static library?could somebody give me a example?
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May 11, 2010
Does anyone know what will be a good library for computing linear algebra in Android (SVD, QR, LU, least-squares, inverse, etc) ?
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Jul 27, 2010
I have an Android project that contains a class that uses JNI to pull a value from a C function. The C function was built into a library using NDK. The value returned from the C function is in turn used to initialize a variable inside a class when its first loaded. This works fine. However, I also want it to work when the library is missing by providing a default value. So Im using something like this..
Despite the catch, Im still getting a UnsatisfiedLinkError when I try to run this code with the library missing. Why am I not catching the exception? What am I doing wrong?
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Mar 6, 2010
As is disabled on Android, is it possible to upload a photo from library, in Browser somehow? Camera/Photo Library JavaScript API?
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Jul 9, 2010
I'm new to Android ndk and i didn't understand yet which are the differences between static and shared library. Could you explain me what these differences are? When developing a library how could i choose one of them?
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Aug 14, 2009
I am new to the concept of ZXing,so i want to know the step by step process to use the ZXing in android and i am using eclipse as IDE.
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Nov 16, 2010
Is there an Android UI Library that has components like Action Bars and Dashboards? A lot of new applications seem to have these components, so I was hoping there was a solution available (either free or paid).
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Apr 26, 2010
Android AMF client library Aftek has extensive experience in developing enterprise Flex applications. We have used BlazeDS extensively and we believe that it would nice to provide all the benefits provided by AMF for Android applications as well. We have developed an Android AMF client library which would enable Android application developers use the same extensively. The Android AMF client library supports remoting and secured remoting. This will allow all android applications to use the existing backend like .NET, Java, or PHP. The implementation is asynchronous in nature providing success and failure callbacks. This allows application to perform other tasks without blocking the application. We are currently performing some performance benchmarking and plan to release our library very soon. We would also be incorporating the messaging feature as well.
Android RTMP client library:Aftek has extensive experience in developing voip and audio/video and media applications. Media applications has a huge market and there would be quite a few people eager to develop the medial applications on Android. We believe that it would nice to provide all the benefits provided by RTMP for Android applications as well. We are developing an Android RTMP client library which would enable Android application developers use the same extensively. Our Android RTMP client library would support some add-ons that would help developers to deliver robust media solutions.
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May 27, 2009
I am creating an Android library that does stuff like http requests, etc, that uses android.jar objects. There will be no manifest or resources, etc, however. What is the best practice regarding the JUnit library to use in this library? DO I use standard JUnit, or the one included in android.jar?
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Apr 27, 2010
I have an existing C++ library that I want to compile into a static library, and call commands from it with Java on the Android platform. I am brand new to Android development, and just need to figure out how to set the Java interface up so my C++ lib works on the Android. Where do I start?
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May 31, 2010
I'm trying to compile a static library to use on Android but I can't figure out how to compile it. The library uses standard libraries (stdio.h etc...) and libxml2.
I am trying to compile using arm-eabi-gcc but I get the following error:
/cygdrive/c/android-ndk-r4/build/platforms/android-8/arch-x86/usr/include/asm/posix_types.h:15:28: error: posix_types_64.h: No such file or directory
How do I get this to work?
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Mar 16, 2010
I am using Windows and Eclipse. Through a few mis-clicks, I removed the Android library from my project. I am able to add the android.jar file from the specific version I want but that is does not allow me to run.
In eclipse, how do I add an Android library like 1.6 to an existing project?
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Aug 25, 2010
Is there any way to monitor the performance of a thread on Android phone.
As in any POSIX library?
I want to find the time taken by a "thread" during execution, while many other applications might also be running.
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Apr 1, 2010
In my application, I want to use chm library.
Can anyone tell me How to build shared library (.so file) for chm reader in Android?
And which toolchain is used. what is the steps for building it?
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Feb 19, 2010
I ask something about static library..
" how to create executable static library in android?"
and
"How to connect static library in eclipse?"
Static library is a binary file, How to understand static library in jni?
I wondering static library operation method in android.. (such as static library in vc++).
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Mar 7, 2010
I am successfully linking some of my code stored in a .jar-based library to my Android app. The .jar code references Android library content just fine.
The problem is I need to include 'res' resources in the library but can't work out how to do this. Any suggestions?
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Jul 16, 2010
I have a cross-platform C library that I need to compile for Android as a *.so file. The library consist of many .c and .h files, and it use autotools as it's buid system. (./configure && make dep && make). Afaik, the library does not depend on other libraries, other than libc and OpenSSL (which should be present on Andriod).
I'm trying to find the simplest (read fastest in terms or not needing to read hundreds of pages of manuals and then apply try && fail brute-force approaches to complete the task) way of getting the library off my machine in source code form, and into the Android phones as a .so. The library will eventually be accessed from Java's native library interface. For development, I have both Windows and Debian machines on my desk.
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