How to capture human signature [closed]

Answer 1

Your question is a little too broad. Try asking a question about a specific problem, not "how do I do something general". See the FAQ for more information about how to ask a question.

Here is a vague idea though:

1. You'll want to have a canvas object that can allow the user to draw to the screen. Here is a link on SO about it. Android drawing a line to follow your finger

2. Then you'll want to output that bitmap as a file: Save bitmap to location