I want to plot a Time vs value graph where time (in hours) is on the x-axis and the Values should be on the y-axis. Is there any library to do this? I tried using achartengine http://wptrafficanalyzer.in/blog/android-drawing-time-chart-with-timeseries-in-achartengine/ but not much helpful.
you can use GraphView for doing this.
http://www.jjoe64.com/p/graphview-library.html
https://github.com/jjoe64/GraphView
you have to use a Custom label formatter. There's an example where the X-values are displayed as DateTime.
GraphView graphView = new LineGraphView(this, "example") {
@Override
protected String formatLabel(double value, boolean isValueX) {
if (isValueX) {
// convert unix time to human time
return dateTimeFormatter.format(new Date((long) value*1000));
} else return super.formatLabel(value, isValueX); // let the y-value be normal-formatted
}
};
It should be easy to modify this to your purpose.
来源：https://stackoverflow.com/questions/16850789/how-to-plot-a-graph-with-time-in-x-axis-and-value-on-the-other-in-android