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我正在开发一个带有Google Maps API v2的应用程序。我已经构建了一个自定义位置源来为位图提供位置更新，还有一些功能可以跟随用户，所以f.i.当用户按下“跟随”按钮Aggiorna [=更新] BearingAuto和AggiornaPosAuto成为真：指南针惯性
@Override
public void OnBearingChanged(float bearing) {
if (AggiornaBearingAuto)
{
mMap.moveCamera(CameraUpdateFactory.newCameraPosition(CameraPosition.builder(mMap.getCameraPosition()).bearing(bearing).build()));
}
}
@Override
public void OnLocationChanged(Location location) {
if (AggiornaPosAuto)
{
CameraPosition Att = mMap.getCameraPosition();
mMap.moveCamera(CameraUpdateFactory.newCameraPosition(
CameraPosition.builder().bearing(Att.bearing).
target(new LatLng(location.getLatitude(), location.getLongitude()))
.tilt(Att.tilt).zoom(Att.zoom).build()
));
}
}
和那些功能更新CameraPosition，根据从我的类提供的值。
现在，在类，它提供轴承更新方法如下：
@Override
public void onSensorChanged(SensorEvent sensorEvent) {
float[] inR = new float[16];
float[] I = new float[16];
float[] orientVals = new float[3];
double azimuth = 0;
double pitch = 0;
double roll = 0;
// Gets the value of the sensor that has been changed
switch (sensorEvent.sensor.getType()) {
case Sensor.TYPE_ACCELEROMETER:
gravity = sensorEvent.values.clone();
break;
case Sensor.TYPE_MAGNETIC_FIELD:
geomag = sensorEvent.values.clone();
break;
}
// If gravity and geomag have values then find rotation matrix
if (gravity != null && geomag != null) {
// checks that the rotation matrix is found
boolean success = SensorManager.getRotationMatrix(inR, I, gravity, geomag);
if (success) {
SensorManager.getOrientation(inR, orientVals);
azimuth = Math.toDegrees(orientVals[0]);
pitch = Math.toDegrees(orientVals[1]);
roll = Math.toDegrees(orientVals[2]);
}
}
//finally, call OnBeraingChange in Listener
LocListener.OnBearingChanged((float) azimuth);
}
确定。所以问题是：地图的移动有时会非常迅速地产生恼人的感觉，就像传感器持续提供-4,0，+ 4，0，+ 6，-5等一样。这使得不可能处理这个功能。 Google地图如何使地图旋转如此平稳并且绝对稳定？他们实施了一种惯性，但怎么样？ 有人有想法来实现这样的功能吗？