接近感应器持续时间（Android）

Question

In the Android API, does anyone know a way to determine how long a proximity sensor is in a given state?

For example, I would like for the screen to turn off only if the proximity sensor senses something close to it for more than 2 consecutive seconds.

My current code reads the proximity sensor state just fine, but it immediately turns off the screen. I would like to wait longer to prevent an accidental finger swipe in front of the sensor from turning off the screen. Thanks!

Answer 1

You can start a service in background, which collects data from your onSensorChanged() - method (from SensorEventListener ).

Given to that data you can make some if-cases to determine the sensor state.

Answer 2

尝试使用system.currentTimeMillis（）来计数所需的时间，然后在计时器为0时关闭屏幕