私はgetOrientationを使用してデバイスの実際の向きを取得することに苦労しています。 TYPE_ACCELEROMETERとTYPE_MAGNETIC_FIELDを使って加速度計と磁界の読み取り値を取得するのは、TYPE_ORIENTATIONで方向を取得するのと同じように簡単です。しかし、getOrientationを使って世界の座標系に従って向きを取得する。 hereとhereには数多くの良いチュートリアルがありますが、私はまだそれをまとめていません。その目的のために、私は、getOrientationからAccelerometer、Magnetic Field、生のOrientationデータ、およびOrientationデータを吐き出すアプリを開発していました。私はコードを添付したが、それは私の電話で絶えず失敗する。助言がありますか?getRotationMatrixとgetOrientationチュートリアル
package com.sensorall;
import com.sensorall.R;
import android.hardware.*;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class OrientationAccelerometer extends Activity {
SensorManager sensorManager;
float[] mGravs = new float[3];
float[] mGeoMags = new float[3];
float[] mRotationM = new float[16];
float[] mInclinationM = new float[16];
float[] mOrientation = new float[3];
float[] mOldOreintation = new float[3];
String[] mAccelerometer = new String[3];
String[] mMagnetic = new String[3];
String[] mRotation = new String[16];
String[] mInclination = new String[16];
String[] mOrientationString = new String[3];
String[] mOldOreintationString = new String[3];
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.orientationaccelerometer);
sensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
} /* End onCreate activity */
private SensorEventListener sensorEventListener = new SensorEventListener() {
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
/* Get the Sensors */
public void onSensorChanged(SensorEvent event) {
switch (event.sensor.getType()) {
case Sensor.TYPE_ACCELEROMETER:
System.arraycopy(event.values, 0, mGravs, 0, 3);
break;
case Sensor.TYPE_MAGNETIC_FIELD:
System.arraycopy(event.values, 0, mGeoMags, 0, 3);
break;
case Sensor.TYPE_ORIENTATION:
System.arraycopy(event.values, 0, mOldOreintation, 0, 3);
break;
default:
return;
}
// If mGravs and mGeoMags have values then find rotation matrix
if (mGravs != null && mGeoMags != null) {
// checks that the rotation matrix is found
boolean success = SensorManager.getRotationMatrix(mRotationM, mInclinationM, mGravs, mGeoMags);
if (success) {
/* getOrientation Values */
SensorManager.getOrientation(mRotationM, mOrientation);
for(int i=0; i<2; i++){
mAccelerometer[i] = Float.toString(mGravs[i]);
mMagnetic[i] = Float.toString(mGeoMags[i]);
mOrientationString[i] = Float.toString(mOrientation[i]);
mOldOreintationString[i] = Float.toString(mOldOreintation[i]);
}
/* Make everything text to show on device */
TextView xaxisAccelerometerText = (TextView)findViewById(R.id.xaxisAccelerometer);
xaxisAccelerometerText.setText(mAccelerometer[0]);
TextView yaxisAccelerometerText = (TextView)findViewById(R.id.yaxisAccelerometer);
yaxisAccelerometerText.setText(mAccelerometer[1]);
TextView zaxisAccelerometerText = (TextView)findViewById(R.id.zaxisAccelerometer);
zaxisAccelerometerText.setText(mAccelerometer[2]);
TextView xaxisMagneticText = (TextView)findViewById(R.id.xaxisMagnetic);
xaxisMagneticText.setText(mMagnetic[0]);
TextView yaxisMagneticText = (TextView)findViewById(R.id.yaxisMagnetic);
yaxisMagneticText.setText(mMagnetic[1]);
TextView zaxisMagneticText = (TextView)findViewById(R.id.zaxisMagnetic);
zaxisMagneticText.setText(mMagnetic[2]);
TextView xaxisOrientationText = (TextView)findViewById(R.id.xaxisOrientation);
xaxisOrientationText.setText(mOrientationString[0]);
TextView yaxisOrientationText = (TextView)findViewById(R.id.yaxisOrientation);
yaxisOrientationText.setText(mOrientationString[1]);
TextView zaxisOrientationText = (TextView)findViewById(R.id.zaxisOrientation);
zaxisOrientationText.setText(mOrientationString[2]);
TextView xaxisOldOrientationText = (TextView)findViewById(R.id.xaxisOldOrientation);
xaxisOldOrientationText.setText(mOldOreintationString[0]);
TextView yaxisOldOrientationText = (TextView)findViewById(R.id.yaxisOldOrientation);
yaxisOldOrientationText.setText(mOldOreintationString[1]);
TextView zaxisOldOrientationText = (TextView)findViewById(R.id.zaxisOldOrientation);
zaxisOldOrientationText.setText(mOldOreintationString[2]);
}else{
/* Make everything text to show on device even if getRotationMatrix fails*/
String matrixFailed = "Rotation Matrix Failed";
TextView xaxisAccelerometerText = (TextView)findViewById(R.id.xaxisAccelerometer);
xaxisAccelerometerText.setText(mAccelerometer[0]);
TextView yaxisAccelerometerText = (TextView)findViewById(R.id.yaxisAccelerometer);
yaxisAccelerometerText.setText(mAccelerometer[1]);
TextView zaxisAccelerometerText = (TextView)findViewById(R.id.zaxisAccelerometer);
zaxisAccelerometerText.setText(mAccelerometer[2]);
TextView xaxisMagneticText = (TextView)findViewById(R.id.xaxisMagnetic);
xaxisMagneticText.setText(mMagnetic[0]);
TextView yaxisMagneticText = (TextView)findViewById(R.id.yaxisMagnetic);
yaxisMagneticText.setText(mMagnetic[1]);
TextView zaxisMagneticText = (TextView)findViewById(R.id.zaxisMagnetic);
zaxisMagneticText.setText(mMagnetic[2]);
TextView xaxisOrientationText = (TextView)findViewById(R.id.xaxisOrientation);
xaxisOrientationText.setText(matrixFailed);
TextView yaxisOrientationText = (TextView)findViewById(R.id.yaxisOrientation);
yaxisOrientationText.setText(matrixFailed);
TextView zaxisOrientationText = (TextView)findViewById(R.id.zaxisOrientation);
zaxisOrientationText.setText(matrixFailed);
TextView xaxisOldOrientationText = (TextView)findViewById(R.id.xaxisOldOrientation);
xaxisOldOrientationText.setText(mOldOreintationString[0]);
TextView yaxisOldOrientationText = (TextView)findViewById(R.id.yaxisOldOrientation);
yaxisOldOrientationText.setText(mOldOreintationString[1]);
TextView zaxisOldOrientationText = (TextView)findViewById(R.id.zaxisOldOrientation);
zaxisOldOrientationText.setText(mOldOreintationString[2]);
}
}
}
};
@Override
protected void onResume() {
super.onResume();
sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD), SensorManager.SENSOR_DELAY_NORMAL);
sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_NORMAL);
}
protected void onPause() {
super.onPause();
sensorManager.unregisterListener(sensorEventListener);
}
}
「失敗する」とはどういう意味ですか?それはあなたにエラーを与えている、あなたはデータ/間違ったデータが表示されますか? – arunkumar
メッセージが表示されます。アプリケーションSensorAllが予期せず停止しました。もう一度お試しください。その後、強制的に閉じる必要があります –
私たちがあなたを助けるためにlogcatからスタックトレースを提供してください。 –