要提高Android中地理围栏的准确性,可以采取以下解决方法:
FusedLocationProviderClient fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
fusedLocationProviderClient.getLastLocation()
.addOnSuccessListener(this, new OnSuccessListener() {
@Override
public void onSuccess(Location location) {
if (location != null) {
// 使用获取到的位置信息创建地理围栏
createGeofence(location.getLatitude(), location.getLongitude(), radius);
} else {
// 无法获取位置信息,处理异常情况
}
}
});
float radius = 100; // 半径为100米
Geofence geofence = new Geofence.Builder()
.setRequestId(requestId)
.setCircularRegion(latitude, longitude, radius)
.setExpirationDuration(Geofence.NEVER_EXPIRE)
.setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER | Geofence.GEOFENCE_TRANSITION_EXIT)
.build();
float bearing = 180; // 设备方向为180度
Geofence geofence = new Geofence.Builder()
.setRequestId(requestId)
.setCircularRegion(latitude, longitude, radius)
.setExpirationDuration(Geofence.NEVER_EXPIRE)
.setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER | Geofence.GEOFENCE_TRANSITION_EXIT)
.setBearing(bearing)
.build();
以上是提高Android地理围栏准确性的一些解决方法,可以根据具体需求选择适合的方法。