Android App-Running Tracker &Pedometer

Build a Running tracker. In case of GPS runs,calculate Time,Distance,speed using Google Maps In case of Non-GPS runs(for eg on treadmill) -For Android version 4.4 and if phone has sensor==> use Steps API -If not,Estimate distance and speed based on others sensors. In case of weak/poor GPS,fall-back to pedometer. Use Activity Recognition API to get current mode of travelling(car,bicycle,Foot,etc).If the result is not on "Foot",ignore distance travelled of the corresponding time. Use 3rd party libraries to show graphs of past runs