The Android PlotView library can be used to plot signals on Android devices. It is implemented as an Android control and has no external dependencies.
The library project is still in the BETA phase. Use it at your own risk. It is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
There are several known bugs and issues in this beta-version, e.g. concerning custom-scrolling and axes captions. However the main functionalities are working as intended.