安卓谷歌地图api一个文件例子(备忘)

etcix2025-02-13 22:04

ch1: marker 和 change color

kotlin 复制代码 
package branch.feature.googlemap_api_learn.ch1;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import com.example.mynewsapp.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {
    private GoogleMap myMap;


    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_ch1);

        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.gMap);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(@NonNull GoogleMap googleMap) {
        myMap = googleMap;

        LatLng sydney = new LatLng(-34, 151);
        // it works
        myMap.addMarker(new MarkerOptions().position(sydney).title("Sydney"));
        myMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));

        // change color
        MarkerOptions options = new MarkerOptions()
                .position(sydney).title("悉尼");

        options.icon(BitmapDescriptorFactory.defaultMarker(
                // here change color style
                BitmapDescriptorFactory.HUE_MAGENTA));
        myMap.addMarker(options);
    }
}

ch2: 我的位置

kotlin 复制代码 
package branch.feature.googlemap_api_learn.ch2;

import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import com.example.mynewsapp.R;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;


// 我的位置
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {

    private final int FINE_PERMISSION_CODE = 1;
    private GoogleMap myMap;

    Location currentLocation;
    FusedLocationProviderClient fusedLocationProviderClient;

    @Override
    public void onMapReady(@NonNull GoogleMap googleMap) {
        myMap = googleMap;


        LatLng me = new LatLng(currentLocation.getLatitude(), currentLocation.getLongitude());
        myMap.addMarker(new MarkerOptions().position(me).title("我的位置"));
        myMap.moveCamera(CameraUpdateFactory.newLatLng(me));
    }


    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_ch2);
        fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
        getLastLocation();
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == FINE_PERMISSION_CODE) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                getLastLocation();
            } else {
                Toast.makeText(this, "位置未授权", Toast.LENGTH_SHORT).show();
            }
        }
    }

    private void getLastLocation() {
        // handle permission
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) !=
                PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this,
                Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            ActivityCompat.requestPermissions(this, new String[]
                    {Manifest.permission.ACCESS_FINE_LOCATION,}, FINE_PERMISSION_CODE);

            return;
        }
        Task<Location> task = fusedLocationProviderClient.getLastLocation();

        task.addOnSuccessListener(new OnSuccessListener<Location>() {
            @Override
            public void onSuccess(Location location) {
                if (location != null) {
                    // set my location
                    currentLocation = location;
                    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.gMap);
                    mapFragment.getMapAsync(MainActivity.this);
                }
            }
        });
    }
}

ch3: 查找位置和移动相机

kotlin 复制代码 
package branch.feature.googlemap_api_learn.ch3;

import android.location.Address;
import android.location.Geocoder;
import android.os.Bundle;
import android.widget.SearchView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import com.example.mynewsapp.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import java.util.List;

// 查找位置
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {
    private GoogleMap myMap;

    private SearchView mySearchView;

    @Override
    public void onMapReady(@NonNull GoogleMap googleMap) {
        myMap = googleMap;
    }


    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_ch3);

        mySearchView = findViewById(R.id.mapSearch);


        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.gMap);


        mySearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                String location = mySearchView.getQuery().toString();
                List<Address> addressList = null;

                if (location != null) {
                    Geocoder geocoder = new Geocoder(MainActivity.this);

                    try {
                        addressList = geocoder.getFromLocationName(location, 1);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }


                    Address address = addressList.get(0);
                    LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
                    myMap.addMarker(new MarkerOptions().position(latLng).title(location));
                    myMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 100));
                }
                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {
                return false;
            }
        });


        mapFragment.getMapAsync(MainActivity.this);
    }
}

ch4: 切换地图类型

kotlin 复制代码 
package branch.feature.googlemap_api_learn.ch4;

import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import com.example.mynewsapp.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

// 创建不同的地图类型
// None, Normal, Satellite Map, Hybrid Map
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {

    private GoogleMap myMap;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_ch4);
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.gMap);

        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(@NonNull GoogleMap googleMap) {
        myMap = googleMap;

        LatLng one = new LatLng(11, 11);
        myMap.moveCamera(CameraUpdateFactory.newLatLng(one));
        MarkerOptions options = new MarkerOptions().position(one).title("one");

        options.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_CYAN));

        myMap.addMarker(options);


        // 启用一下
        myMap.getUiSettings().setZoomControlsEnabled(true);
        myMap.getUiSettings().setCompassEnabled(true);

        myMap.getUiSettings().setZoomGesturesEnabled(true);
        myMap.getUiSettings().setScrollGesturesEnabled(true);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_ch4, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.mapNone) {
            myMap.setMapType(GoogleMap.MAP_TYPE_NONE);
        } else if (id == R.id.mapNormal) {
            myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        } else if (id == R.id.mapSatellite) {
            myMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
        } else if (id == R.id.mapHybrid) {
            myMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
        } else if (id == R.id.mapTerrain) {
            myMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
        }


        return super.onOptionsItemSelected(item);

    }
}

ch5: 跳转到谷歌地图app

kotlin 复制代码 
package branch.feature.googlemap_api_learn.ch5;

import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import com.example.mynewsapp.R;

// 跳转谷歌地图，
public class MainActivity extends AppCompatActivity {

    private EditText edFromLocation;
    private EditText edToLocation;
    private Button btCheck;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_ch5);


        edFromLocation = findViewById(R.id.edFrom);
        edToLocation = findViewById(R.id.edTo);
        btCheck = findViewById(R.id.btCheck);


        btCheck.setOnClickListener(view -> {
            String userLocation = edFromLocation.getText().toString();
            String userDestination = edToLocation.getText().toString();

            if (userDestination.equals("") || userDestination.equals("")) {
                Toast.makeText(this, "fill the text", Toast.LENGTH_SHORT).show();
            } else {
                getDirection(userLocation, userDestination);
            }

        });


    }

    private void getDirection(String userLocation, String userDestination) {
        try {
            // 跳转到谷歌地图
            Uri uri = Uri.parse("https://www.google.com/maps/dir/" + userLocation + "/"
                    + userDestination);

            Intent intent = new Intent(Intent.ACTION_VIEW, uri);
            intent.setPackage("com.google.android.apps.maps");
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        } catch (ActivityNotFoundException e) {
            e.printStackTrace();
        }
    }
}

ref link:

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