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package fr.xebia.androidthingskotlin |
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import android.app.Activity |
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import android.os.Bundle |
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import android.view.KeyEvent |
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import com.google.android.things.contrib.driver.button.Button |
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import com.google.android.things.contrib.driver.button.ButtonInputDriver |
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import com.google.android.things.pio.Gpio |
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import com.google.android.things.pio.PeripheralManagerService |
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class ButtonActivity : Activity() { |
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private lateinit var ledGpio: Gpio |
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private lateinit var buttonInputDriver: ButtonInputDriver |
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override fun onCreate(savedInstanceState: Bundle?) { |
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super.onCreate(savedInstanceState) |
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val pioService = PeripheralManagerService() |
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ledGpio = pioService.openGpio(BoardDefaults.gpioForLED) |
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ledGpio.setDirection(Gpio.DIRECTION_OUT_INITIALLY_LOW) |
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buttonInputDriver = ButtonInputDriver( |
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BoardDefaults.gpioForButton, |
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Button.LogicState.PRESSED_WHEN_LOW, |
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KeyEvent.KEYCODE_SPACE) |
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buttonInputDriver.register() |
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} |
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override fun onKeyDown(keyCode: Int, event: KeyEvent): Boolean { |
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when (keyCode) { |
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KeyEvent.KEYCODE_SPACE -> { |
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setLedValue(true) |
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return true |
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} |
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else -> return super.onKeyDown(keyCode, event) |
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} |
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} |
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override fun onKeyUp(keyCode: Int, event: KeyEvent): Boolean { |
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when (keyCode) { |
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KeyEvent.KEYCODE_SPACE -> { |
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setLedValue(false) |
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return true |
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} |
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else -> return super.onKeyUp(keyCode, event) |
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} |
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} |
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private fun setLedValue(value: Boolean) { |
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ledGpio.value = value |
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} |
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override fun onDestroy() { |
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super.onDestroy() |
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buttonInputDriver.unregister() |
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buttonInputDriver.close() |
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ledGpio.close() |
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} |
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} |
