I have been looking for a way to implement dynamic stock charts into my Android app but I don't where to start. I know I'll need a library, in fact, I found two LightWeight Charts and Vaadin but I don't know if they would work. I am very new to android programming and have never actually implemented a library into any project ever. I just need some guidance.
I suggest to search "stock charts" in google image to find what kind of chart you need before you choose.
Decompose this graph into data curve, background and scale. Maybe you have to implement them separately.
Find some Android library recommend web site that has the "similar lib" function which help you to find a lot of this kind libs. As I know one: https://android-arsenal.com/
My AD: https://github.com/maxyou/SimpleWaveform. It only draw a list of data to a rectangle, and you can draw any background and scale by yourself. Surely, you need to compare a lot of libs and then choose the most suitable one.
Related
I want to display some 3D models (.obj files) in an android app using android studio.
The user enters some data and the models have to be placed relative to each other according to the user input.
So all I need is to display some 3D models placed relative to each other according to the data entered before, and the user will be able to see the models from any direction when swiping the screen.
I don't know how to achieve this. I tried to use OpenGL-ES, but without avail as I can't find enough tutorials and the documentation is hard to be understood.
Any help or suggestion is welcome.
Thanks in advance.
Found this 3D Viewer on GitHub (supports OBJ, GLTF)
Also, I believe it is possible to find some converters OBJ ~> GLTF (by Khronos). You can write Android App with embedded Web View in which you can show GLTF.
If someone will work on Android app using some HTML / JS framework like Phonegap or VueJS + Quasar, then GLTF could be good way to go (if OBJ ~> GLTF is not a problem).
You can use for this job SceneForm. In a nutshell SceneForm is used as a middleware between ARCore and Filament to create awesome Augmented Reality Apps, but you can also use SceneForm just to visualize GLTF-Models
I'm developing a flow chart drawing tool for Android and even though it has been a month I still couldn't find a good, reliable graphics library to help me develop this app.
Here are a few things I tried:
1-) Android views. Since a flowchart would naturally include lots and lots of shapes, this option wasn't satisfactory in terms of performance. Plus, I didn't even know how to draw arrows.
2-) Canvas. It was quite good when it comes to performance but canvas does nothing more than coloring pixels, so I can't go back to editing them after placing a shape on the screen.
3-) Now I'm working on Qt to see if I can achieve my goals and so far it seems as though it's very doable but using a cross-platform development software for only Android doesn't make a lot of sense.
4-) Libgdx and Unity are also options but using a game engine for such a lightweight app didn't seem like a very good idea to me.
Can you suggest me a good library or any other development tool?
There is https://github.com/mocircle/cidrawing library. Maybe useful for this type of task with link to https://github.com/Team-Blox/GraphView library.
Hope it helps.
I'm currently using libgdx and I am looking for a way to modify the frame/window. I'm looking through google for maybe tutorials and examples but I'm not really sure what to search for. What would be the correct term to look and if anyone does have any examples/tutorials then I'd appreciate them posting them.
This is for desktop.
On the desktop Libgdx uses LWJGL to access OpenGL and desktop APIs. You should be able to use LWJGL APIs from your desktop backend if you need to.
You will have to be much more specific about what you want to "modify" about the "frame/window" if you want a more precise answer.
Is there an Android Library for creating Grid Views similar to the one in this app
I have done a few google searches but can't seem to be able to find anything.
What you are looking for is not grid but graph views. Graph views let you create nodes, linked by lines / arrows.
A while back I used a java Graph library called JGraph, but it's probably not compatible with the android views.
Most answers on this type of question is to use custom views.
not quite sure what you are exactly looking for, but have you checked Google Charts Visualization ?
I have an application hosted in Java on AppEngine and I would like to add a feature where users can get a graphical summary of their data. BufferedImage is listed as not supported on AppEngine. The display process will be simple--a series of small squares in one of two colors.
Regards,
Kent
If you don't find a better solution, you could delegate the graph generation to Google Charts
Check out the docs on the image service in App Engine. You can probably do what you want with the composition functionality.