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I have been developing an app to show battery information. I have taken whatever possible info form batterymanager, and now what I want to do is to draw a graph according to the battery level against the time. for this, my concept is to monitor the battery level using an alammanager object bt I dont think it would work! please can any one help me with a good concept!
For display a graph first you will have to listen the battery level and then save each better status with date and time in your database. For more information about battery monitoring you can follow this link
After that you can use achartengine for create a graph in android. Use the database value to display graph.