places.getLatLng() 返回 null 虽然 places.getName() 不返回 null

Question

我一直在尝试从自动完成中点击一个地方后获取 latlng 奇怪的是 places.getName() 工作正常但 place.getLatLng() return 无效。我应该怎么做才能解决这个问题我是 google 地图和地点 API!

的新手

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == AUTOCOMPLETE_REQUEST_CODE_FROM) {
        if (resultCode == RESULT_OK) {
            Place place = Autocomplete.getPlaceFromIntent(data);
            Log.i("shipadd", "Place: " + place.getName() + ", " + place.getId());
            from_edit_txt.setText(place.getName());
            origin = place.getLatLng();
            Log.e("origin_destarray", "" + place.getLatLng());
        } else if (resultCode == AutocompleteActivity.RESULT_ERROR) {
            // TODO: Handle the error.
            Status status = Autocomplete.getStatusFromIntent(data);
            Log.i("shipadd", status.getStatusMessage());
        } else if (resultCode == RESULT_CANCELED) {
            // The user canceled the operation.
        }
    } else if (requestCode == AUTOCOMPLETE_REQUEST_CODE_TO) {
        if (resultCode == RESULT_OK) {
            Place place = Autocomplete.getPlaceFromIntent(data);
            Log.i("shipadd", "Place: " + place.getAddress() + ", " + place.getId());
            to_edit_txt.setText(place.getName());

我想要以下代码 return 我 select 在自动完成 activity

中的位置的纬度和经度

Answer 1

以前 Android 的 Places SDK 是通过 Google Play 服务提供的。 用于 Android 的 Places SDK Google Play 服务版本已弃用，Google 将在 2019 年 7 月 29 日之前将其关闭。

但是，Android 的新版 Places SDK 作为静态客户端库分发。
新SDK客户端库的依赖

implementation 'com.google.android.libraries.places:places:1.0.0'

您可以使用以下两种方式之一在 android 应用程序中添加 Google 位置自动完成：

 1) Either embed a AutocompleteSupportFragment
 OR
 2) Use an intent to launch the autocomplete activity.

我通过嵌入下面的 AutocompleteSupportFragment 创建了一个演示应用程序：-

package com.places_api_demo;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import java.util.Arrays;

import com.google.android.gms.common.api.Status;
import com.google.android.libraries.places.api.model.Place;
import com.google.android.libraries.places.api.net.PlacesClient;
import com.google.android.libraries.places.widget.AutocompleteSupportFragment;
import com.google.android.libraries.places.widget.listener.PlaceSelectionListener;
import com.google.android.libraries.places.api.Places;
import static com.google.android.libraries.places.api.model.Place.Field.LAT_LNG;


public class MainActivity extends AppCompatActivity {
String TAG = "placeautocomplete";
TextView txtView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    txtView = findViewById(R.id.txtView);

    // Initialize Places.
    Places.initialize(getApplicationContext(), "REPLACE YOUR API KEY HERE");
    // Create a new Places client instance.
    PlacesClient placesClient = Places.createClient(this);

    // Initialize the AutocompleteSupportFragment.
    AutocompleteSupportFragment autocompleteFragment = (AutocompleteSupportFragment)
            getSupportFragmentManager().findFragmentById(R.id.autocomplete_fragment);

    // Specify the types of place data to return.
    autocompleteFragment.setPlaceFields(Arrays.asList(Place.Field.ID, Place.Field.NAME, Place.Field.LAT_LNG));

    // Set up a PlaceSelectionListener to handle the response.
    autocompleteFragment.setOnPlaceSelectedListener(new PlaceSelectionListener() {
        @Override
        public void onPlaceSelected(Place place) {
            // TODO: Get info about the selected place.
            txtView.setText(place.getName()+"\n"+place.getId()+"\n"+ place.getLatLng());
            Log.i(TAG, "Place: " + place.getName() + ", " +  place.getLatLng());
        }

        @Override
        public void onError(Status status) {
            // TODO: Handle the error.
            Log.i(TAG, "An error occurred: " + status);
        }
    });
}
}

指定位置数据的类型也很重要 return

autocompleteFragment.setPlaceFields(Arrays.asList(Place.Field.LAT_LNG, Place.Field.ID, Place.Field.NAME));

For more details related to Place Data fields please refer here

Answer 2

我遇到了同样的问题，最后我知道我们需要请求 Place.Field.LAT_LNG。

此功能将开启自动完成功能

private void openGetLocation() {

    // Set the fields to specify which types of place data to
    // return after the user has made a selection.
    List<Place.Field> fields = Arrays.asList(Place.Field.LAT_LNG,Place.Field.ID, Place.Field.NAME);

    // Start the autocomplete intent.
    Intent intent = new Autocomplete.IntentBuilder(AutocompleteActivityMode.OVERLAY, fields)
            .build(this);
    startActivityForResult(intent, AUTOCOMPLETE_REQUEST_CODE);
}

在此处获取地点详情onActivityResult

 @Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK && requestCode == 1) {
        Toast.makeText(this, data.toString(), Toast.LENGTH_SHORT).show();
        Place place = Autocomplete.getPlaceFromIntent(data);
        locationEd.setText(place.getLatLng().toString());
    } else if (resultCode == AutocompleteActivity.RESULT_ERROR) {
        Status status = Autocomplete.getStatusFromIntent(data);
        Toast.makeText(this, status.getStatusMessage(), Toast.LENGTH_SHORT).show();
    }
}

注：

这里我要求了三样东西Place.Field.LAT_LNG,Place.Field.ID,Place.Field.NAME

places.getLatLng() 返回 null 虽然 places.getName() 不返回 null

places.getLatLng() returning null though places.getName() is not returning null

android

google-maps

location

google-places-api