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这里介绍的水平仪，指的是比较传统的气泡水平仪，在一个透明圆盘内充满液体，液体中留有一个气泡，当一端翘起时，该气泡就会浮向翘起的一端。利用方向传感器返回的第一个参数，实现了一个指南针小应用。我...

我的Android进阶之旅------>Android利用Sensor(传感器)实现指南针功能

首先来说一说该指南针的实现思路：程序先准备一张指南针图片，该图片上方向指针指向北方。接下来开发一个检测方向的传感器，程序检测到手机顶部绕Z轴转过多少度，让指南针图片反向转多少度即可。由此可见指南针应用只要在界面中添加一张图片，并让图片总是反向转过反向传感器返回的第一个角度值即可。下面介绍一下方向...

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