가속도 센서 가져오기

가속도 센서 가져오는 예제입니다.

화면은 간단히 start버튼을 누르면 센서값 가져오기 시작하고end버튼 누르면 꺼져요..

Xml입니다

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent" android:background="#353839"
        android:layout_height="match_parent" android:orientation="vertical"
        android:id="@+id/LinearParent" >

    <LinearLayout
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" android:background="#282A2B"/>

    <TextView
            android:text=""
            android:layout_width="match_parent"
            android:layout_height="0dp" tools:layout_editor_absoluteY="49dp"
            tools:layout_editor_absoluteX="32dp" android:id="@+id/textView" android:layout_margin="0dp"
            android:scrollbars="vertical" android:textColor="#FFFFFF" android:paddingLeft="14pt"
            android:paddingRight="10pt" android:lineSpacingExtra="5dp" android:layout_weight="9"/>
    <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" android:layout_weight="1">
        <LinearLayout
                android:orientation="horizontal"
                android:layout_width="match_parent"
                android:layout_height="15dp" android:layout_weight="1">
            <Button
                    android:text="Start"
                    android:layout_width="75pt"
                    android:layout_height="25pt" android:id="@+id/btn_start" android:layout_weight="1"
                    android:layout_marginStart="10.5pt"
                    android:layout_marginEnd="8.5pt" android:textColor="#8B8888" android:textStyle="bold"
                    android:textAlignment="center"
                    android:textAllCaps="false" android:textSize="10.5pt"
            />
            <Button
                    android:text="End"
                    android:layout_width="75pt"
                    android:layout_height="25pt" android:id="@+id/btn_end"
                    android:layout_weight="1"
                    android:layout_marginStart="0pt" android:layout_marginEnd="8.5pt" android:textColor="#FFFFFF" android:textStyle="bold"
                    android:textAllCaps="false" android:textSize="10.5pt"/>

        </LinearLayout>

    </LinearLayout>

</LinearLayout>

 

MainActivity.kt

변수선언 :

public var  m_printString:String=""
//Using the Accelometer & Gyroscoper
private var mSensorManager: SensorManager? = null

var lastTime: Long = 0
var speed = 0.toDouble()
var lastX = 0.toDouble()
var lastY = 0.toDouble()
var lastZ = 0.toDouble()   

private var mAccLis: SensorEventListener? = null
private var mAccelometerSensor: Sensor? = null

 

onCreate안에

mSensorManager = getSystemService(Context.SENSOR_SERVICE) as SensorManager

//Using the Accelometer
mAccelometerSensor = mSensorManager!!.getDefaultSensor(Sensor.TYPE_ACCELEROMETER)
mAccLis = AccelometerListener()

 

센서 셋팅~

Start버튼 누르면

mSensorManager!!.registerListener(
    mAccLis,mAccelometerSensor,SensorManager.SENSOR_DELAY_UI)

이 Listener를 받아줄 inner class(SensorEventListener)

private inner class AccelometerListener : SensorEventListener {

    override fun onSensorChanged(event: SensorEvent) {

        if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
            val currentTime = System.currentTimeMillis();
            val gabOfTime = (currentTime - lastTime);
            if (gabOfTime > 100) {

                lastTime = currentTime;
                val accX = event.values[0].toDouble()
                val accY = event.values[1].toDouble()
                val accZ = event.values[2].toDouble()

                val angleXZ = Math.atan2(accX, accZ) * 180 / Math.PI
                val angleYZ = Math.atan2(accY, accZ) * 180 / Math.PI

                val gravityX=accX/SensorManager.GRAVITY_EARTH
                val gravityY=accY/SensorManager.GRAVITY_EARTH
                val gravityZ=accZ/SensorManager.GRAVITY_EARTH

                speed = Math.abs(accX + accY + accZ - lastX - lastY - lastZ) / gabOfTime * 10000;


                lastX = event.values[0].toDouble();
                lastY = event.values[1].toDouble();
                lastZ = event.values[2].toDouble();


                m_printString="Date :" + getDateString("yyyy-MM-dd hh:mm:ss") + "   [X]:" + String.format("%.4f", event.values[0]) +
                        "           [Y]:" + String.format("%.4f", event.values[1]) +
                        "           [Z]:" + String.format("%.4f", event.values[2]) +
                        "           [angleXZ]: " + String.format("%.4f", angleXZ)  +
                        "           [angleYZ]: " + String.format("%.4f", angleYZ)  +
                        "           [speed]: " + String.format("%.4f", speed) +"\n \n"


            }

        }
    }


    override fun onAccuracyChanged(sensor: Sensor, accuracy: Int) {

    }
 


}
<pre style="background-color:#ffffff;color:#000000;font-family:'굴림체';font-size:7.2pt;"></pre>

  위에 변수로 선언한 

m_printString로 화면에 찍어주면

됨..

fun printData(str:String){
    textView.append(str)
    var scrollAmount=textView.getLayout().getLineTop(textView.lineCount)-textView.height
    if(scrollAmount>0)
        textView.scrollTo(0,scrollAmount)
    else
        textView.scrollTo(0,0)


    if(textView.text.length > 10000) {
        textView.text = ""
    }
}

자동 스크롤과 화면 리셋도 추가된 함수입니다 위에꺼요..