我在安卓的数据库中存储了两个近列:
1-st column I have stored speed of a car 2-th column I have stored the moment of time when that car had tha speed
What I wanna do is to plot a graph which has on the x-axis the period of time and on the y-axis the speed of the car at that moment.
有人知道我该怎么做吗?