How to create a virtual joystick to move a game character?

Question

Android

How do experienced developers implement this? There was an idea to create a rectangular panel, the principle of which is similar to the panel for the cursor on a laptop. But in this case it is not very convenient.
Here we are talking about a dynamic button that is held down. Is it really possible to implement something like this using a regular Button, or is it better to use some other component?

Answer 1

For example, you can use any View and onTouchListener. The onTouch() event receives a MotionEvent that contains comprehensive information about the user's actions. It remains to process the data with an RF filter, calculate the vector and use it.