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Android Drawing Component, low latency (Native? OpenGL? not sure)

$250-750 USD

Cerrado
Publicado hace casi 4 años

$250-750 USD

Pagado a la entrega
I'm working on developing an Android drawing low latency app. Canvas is obviously too slow for this. This is for a small personal project of mine. I'm a developer but not an Android developer, so I'd like this component in a state that I can tinker with. Here are the main features. If you can still do a good subset of these, let me know! * Low latency rendering is the most important thing. There should be no (or little) space between the pointer on the screen and the brush stroke. I suspect there's a way of having a small "Layer" (Surface) at the tip of the pointer, while actually committing the brush to the main image in a different thread. I assume it could also be a native component or an OpenGL component. Maybe some clever buffer tricks. Up to you. * it should support different brush types (pencil, pen, etc), with characteristics like thickness transparency etc. By support I mean something that can be added later, you don't have to implement these. Ideally if I can have access to the raw pixels I'll figure out how the brushes would work later and I can tinker with it. If you know how to simulate these brushes, all the better. * Should run on Android 5.0+. Bonus points for ChromeOS (I understand they have some other APIs that can be used). Let me know if there's a reason the SDK version should be different. * Should have Undo/Redo history, without killing the memory. This would work with zipping the image delta between 2 brushstrokes. Or if it works fast enough, replaying the history. * Should have the possibility to zoom in/out and pan. * Should be possible to instantiate multiple of these components in the same app. * Should work with an active stylus. I assume this is trivial. * Should support multiple layers * Should support being resized * Should be in Java. I'm not familiar with Kotlin. C++/Native also works. * There should be a way to access the pixels to do simple operations (like set background, paste an image) even if it's in a slow way. The deliverable should be an app with this component, minimal UI, minimal brushes (transparent black circle could do the trick). Looking forward to your questions and proposals.
ID del proyecto: 25904021

Información sobre el proyecto

7 propuestas
Proyecto remoto
Activo hace 4 años

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7 freelancers están ofertando un promedio de $516 USD por este trabajo
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Hello, I'm a full-time available here!!! You need to build an Android app, with the admin panel. As per your project need,, I can build your project more efficiently with my knowledge and experience. I'm looking to work with you and I'm very sure that you'll feel great to work with me. Along with your project requirement, I'll provide you clean source code with free bug fixing and maintenance. I Have 6 years of work experience in web and mobile Apps development. I have worked on so many projects like Taxi app, food delivery, school management, Pos, E-commerce, Event booking,,,, etc. I am fully dedicated to doing my work very efficient and less time-consuming. "Looking forward to your positive response please open your chat window to more details" Thanks. regard, Julian
$445 USD en 7 días
4,5 (90 comentarios)
7,9
7,9
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Hi dear client, i had seen your job post in freelancer.com it's  not well explained. Can you please share your entire idea or reference url for your requirements if any you have,  so I can take a look on it and I will help you. I will need proper information about your project so I can give you quality work done. I will share URL for the same during project discussion. Looking forward to start work together. Thank you, Rajni
$750 USD en 15 días
0,0 (0 comentarios)
0,0
0,0
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im a good java developer and its good for you more than everything for you.
$556 USD en 30 días
0,0 (0 comentarios)
0,0
0,0

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Bandera de UNITED STATES
New York, United States
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Miembro desde jun 5, 2020

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