要在用户关闭位置共享选项后阻止谷歌服务获取用户地理位置,可以使用Android的GeoLocation API结合FireStore来实现。下面是一个代码示例,演示了如何实现这个功能:
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationResult;
import com.google.android.gms.location.LocationServices;
public class MainActivity extends AppCompatActivity {
private static final int PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION = 1;
private FusedLocationProviderClient fusedLocationProviderClient;
private LocationCallback locationCallback;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
}
private void requestLocationPermissions() {
if (ContextCompat.checkSelfPermission(this,
android.Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this,
new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION},
PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);
} else {
startLocationUpdates();
}
}
private void startLocationUpdates() {
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setInterval(10000);
locationRequest.setFastestInterval(5000);
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationCallback = new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
if (locationResult == null) {
return;
}
for (Location location : locationResult.getLocations()) {
// 处理获取到的位置信息
// ...
}
}
};
fusedLocationProviderClient.requestLocationUpdates(locationRequest,
locationCallback,
null);
}
private void stopLocationUpdates() {
fusedLocationProviderClient.removeLocationUpdates(locationCallback);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if (requestCode == PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION) {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
startLocationUpdates();
} else {
// 处理未获取到位置权限的情况
// ...
}
}
}
@Override
protected void onResume() {
super.onResume();
requestLocationPermissions();
}
@Override
protected void onPause() {
super.onPause();
stopLocationUpdates();
}
}
onLocationResult
方法将获取到的位置信息传递给了一个叫做Firestore
的位置处理方法。你可以根据自己的需求将位置信息存储到Firestore中。import com.google.firebase.firestore.FirebaseFirestore;
public class MainActivity extends AppCompatActivity {
// ...
private void onLocationResult(LocationResult locationResult) {
if (locationResult == null) {
return;
}
for (Location location : locationResult.getLocations()) {
// 将位置信息存储到Firestore中
FirebaseFirestore db = FirebaseFirestore.getInstance();
Map locationData = new HashMap<>();
locationData.put("latitude", location.getLatitude());
locationData.put("longitude", location.getLongitude());
db.collection("users")
.document("user_id")
.set(locationData);
}
}
// ...
}
请注意,上述代码示例只演示了如何获取用户位置并将其存储到Firestore中。如果要在用户关闭位置共享选项后阻止谷歌服务获取用户地理位置,你需要根据自己的需求来处理位置信息。