Android屏幕边缘嵌入问题导致传感器方向出错。
创始人
2024-10-09 13:01:18
0

在处理传感器方向时,需要考虑到屏幕的边缘嵌入问题,以防止出现方向错误。在代码中可以通过使用 WindowInsets API 来计算屏幕边缘的偏移量,然后将偏移量应用于传感器方向计算中。示例代码如下:

public class SensorActivity extends AppCompatActivity
        implements SensorEventListener {

    private SensorManager mSensorManager;
    private Sensor mAccelerometer;
    private Sensor mMagnetometer;
    private float[] mAccelValues = new float[3];
    private float[] mMagnetValues = new float[3];
    private float[] mRotationMatrix = new float[9];
    private float[] mOrientation = new float[3];
    private Rect mEdges;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sensor);

        // get the insets for the screen edges
        View content = findViewById(android.R.id.content);
        mEdges = content.getRootWindowInsets().getSystemWindowInsetRect();

        // get sensor manager and sensors
        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        mMagnetometer = mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
    }

    @Override
    protected void onResume() {
        super.onResume();
        // register listeners
        mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
        mSensorManager.registerListener(this, mMagnetometer, SensorManager.SENSOR_DELAY_UI);
    }

    @Override
    protected void onPause() {
        super.onPause();
        // unregister listeners
        mSensorManager.unregisterListener(this);
    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        // get sensor data
        if (event.sensor == mAccelerometer) {
            System.arraycopy(event.values, 0, mAccelValues, 0, event.values.length);
        } else if (event.sensor == mMagnetometer) {
            System.arraycopy(event.values

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