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.