Hi all: I’m studying set rotation by sensor now. I modify mCurrentAppOrientation from SCREEN_ORIENTATION_UNSPECIFIED to SCREEN_ORIENTATION_SENSOR. So “mOrientationListener” will be enabled at initial time. When enable mOrientationListener, sensorManager should register a listener by registerListener and retuen true. But it return false. I traced the code in SensorManager.java and found I do not have a sensorList. There are some questions: 1.How can I build up a sensor list (or I should ask : How can I init SensorManager or SensorService)? 2.When enable mOrientationListener, there is a parameter : SENSOR_ACCELEROMETER , is this parameter used for rotation detector? What functin is SENSOR_ORIENTATION used for?. 3.Does android support SENSOR_LIGHT? If I want add light sensor, how should I do?
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