java - Android：FusedLocationProvider，每隔几秒获取一次位置

问题描述

我正在制作一个跟踪用户位置并最终将其上传到 Firebase 服务器的应用程序。

我创建了一个简单的应用程序，当我按下屏幕上的按钮时会显示位置。问题是当我走了几米后再次按下它时它不会改变位置（但当我重新进入应用程序时我确实得到了一个新位置）。为了让应用每 X 秒更新一次位置，我需要添加什么？这是我的活动：

package com.example.gpstest;

import android.content.pm.PackageManager;
import android.location.Location;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.tasks.OnSuccessListener;

import static android.Manifest.permission.ACCESS_FINE_LOCATION;

public class MainActivity extends AppCompatActivity {

    private FusedLocationProviderClient client;


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

        requestPermission();
        client = LocationServices.getFusedLocationProviderClient(this);
        Button button = findViewById(R.id.getLocation);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ActivityCompat.checkSelfPermission(MainActivity.this, ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED ) {

                    return;
                }
                client.getLastLocation().addOnSuccessListener(MainActivity.this, new OnSuccessListener<Location>() {
                    @Override
                    public void onSuccess(Location location) {

                        if(location != null){
                            TextView lat = findViewById(R.id.location1);
                            TextView lon = findViewById(R.id.location2);
                            TextView alt = findViewById(R.id.location3);
                            lat.setText(Double.toString(location.getLatitude()));
                            lon.setText(Double.toString(location.getLongitude()));
                            alt.setText(Double.toString(location.getAltitude()));
                        }
                    }
                });
            }
        });
    }

    private void requestPermission(){
        ActivityCompat.requestPermissions(this, new String[]{ACCESS_FINE_LOCATION}, 1);
    }
}

标签： javaandroidgpsandroid-gps

java - Android：FusedLocationProvider，每隔几秒获取一次位置

问题描述

解决方案

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