摘  要
随着智能手机市场的不断扩大，智能手机应用开发己经展现出其强大的市场价值。Android最具创新的特点是其开放性体系架构，这使得Android平台具体无限的吸引力。近来越来越多的人对自身健康问题感到关注，运动健身类软件也逐渐成为了移动互联网业务的一个主要应用方向。
本文以运动健身作为研究方向，设计并实现一款基于Android智能手机的计步应用软件。该应用软件通过手机GPS功能来获取用户实时的经纬度信息，借助地球球面两点间的距离公式计算用户的运动距离，从而测得用户所走的步数、速度以及消耗的热量。此外，该软件包括使用SQLite数据库查询用户的历史运动信息以及设置运动者的身高、体重和运动目标等参数的功能。
本系统界面友好、操作便捷，具有良好的可扩展性和可维护性；系统经过测试，可以稳定运行，对于日常走路上班或者锻炼的人来说非常合适，方便人们及时掌握自己锻炼的情况，达到高效锻炼的效果。
关键词：Android； GPS； 计步器； SQLite； 运动健身
ABSTRACT
With the continuous expansion of the smart Phone market,the smartPhone applications development has demonstrated its strong market value.Android's most innovative feature is its open architecture, which makes the Android platform unlimited appeal.Recently, more and more people are concerned about their own health problems, sports and fitness class software is becoming a major application direction of the mobile Internet business.Therefore, the context make use of the sports and fitness as its research direction to design and implement the pedometer application software which based on Android-based smartphone.
The core functionality is that through the GPS function of mobile phones ,it can get the latitude and longitude information in real time about the user, use the distance between two points of the Earth's spherical formula to calculate the user's movement distance, which used to measure the number of steps to go, speed and calories burned. Besides,this software’s function includs that using the SQLite database to query the histor
y information about user and set the height,weight and target of step sports about the user.
The system’eclipse开发手机apps interface is quite friendly and easy to handle the system,.it has good scalability and maintainability; the system has been tested and operated very well, the software is very suitable for the people who walks to work daily or likes exercising themselves, it is convenient for people to know their exercise information at any time and in any place ,so that we can achieve our purpose to hava a high efficiency exercise.
Keywords： Android; GPS; pedometer; SQLite; fitness

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