使用 Android 旋转传感器并使用自定义视图可视化设备旋转的示例_Java_代码_相关文件_下载

android-rotation-sensor-sample ============================== This is a sample application that uses the Android rotation sensor and displays the device rotation (pitch/roll) with a custom view (an attitude indicator, aka "artificial horizon"). It shows proper usage of the following Android features: - Monitoring the rotation vector sensor (but only while the activity is visible). - Converting the raw rotation matrix to pitch and roll, measured in degrees. - Adjusting the rotation values based on the device orientation (e.g. portrait vs. landscape). - Drawing a custom view, including using Porter-Duff transfer mode to create an anti-aliased circle cut-out.  The [kotlin](https://github.com/kplatfoot/android-rotation-sensor-sample/tree/kotlin) branch shows the same app written in Kotlin. The [arch-components](https://github.com/kplatfoot/android-rotation-sensor-sample/tree/arch-components) branch shows how to use the new [Android Architecture Components](https://developer.android.com/topic/libraries/architecture/index.html) to start/stop the sensor listener automatically at the right time in the activity lifecycle.