IV. SYSTEM IMPLEMENTATION This time- and energy-efficient Android GPS navigation app is implemented on the Google Android 4.1 platform with Eclipse and Android Development Tools (ADT) [21] that supports JAVA 1.7. Important snapshots of this app are shown below. For planning a route from the starting location,i.e., the blue pin in Figure 8, of the vehicle, its driver has to choose the destination location, i.e., the red pin in Figure 8, first and then press the “Planning” button at the upper right corner of this app’s screen. Hence, the initial planned route,which is calculated by static information of the offline electronic map, from the starting location to the destination is shown as the purple line in Figure 8. Associated information,
such as the travelling distance, time, the amount of consumed oil and the average speed, about this route is listed in the green box by clicking the “Route Information” button.Because no dynamic traffic information is used to calculate this initial route, the estimated information listed in parentheses is the same as the original information.
IV. SYSTEM IMPLEMENTATION This time- and energy-efficient Android GPS navigation app is implemented on the Google Android 4.1 platform with Eclipse and Android Development Tools (ADT) [21] that supports JAVA 1.7. Important snapshots of this app are shown below. For planning a route from the starting location,i.e., the blue pin in Figure 8, of the vehicle, its driver has to choose the destination location, i.e., the red pin in Figure 8, first and then press the “Planning” button at the upper right corner of this app’s screen. Hence, the initial planned route,which is calculated by static information of the offline electronic map, from the starting location to the destination is shown as the purple line in Figure 8. Associated information,such as the travelling distance, time, the amount of consumed oil and the average speed, about this route is listed in the green box by clicking the “Route Information” button.Because no dynamic traffic information is used to calculate this initial route, the estimated information listed in parentheses is the same as the original information.
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