<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent" ><TextViewandroid:layout_width="match_parent"android:layout_height="wrap_content"android:text="我的位置坐标:"android:textSize="18sp"android:id="@+id/tv_location"android:textColor="#f00" /></RelativeLayout>

MainActivity.java

package com.example.locationservice;import java.util.List;import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;public class MainActivity extends Activity {private TextView tvLocation;private String provider;private LocationManager locationManager;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);tvLocation = (TextView) findViewById(R.id.tv_location);//1.获取LocationManager对象locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);//2.获取所有可用的位置提供器List<String> allProviders = locationManager.getAllProviders();if(allProviders.contains(LocationManager.GPS_PROVIDER)){provider = LocationManager.GPS_PROVIDER;}else if(allProviders.contains(LocationManager.NETWORK_PROVIDER)){provider = LocationManager.NETWORK_PROVIDER;}else{//当没有可用的位置提供器时，弹出Toast提示用户Toast.makeText(this, "没有可用的位置提供器", Toast.LENGTH_SHORT).show();}//3.获取到记录当前位置信息的Location对象了Location location = locationManager.getLastKnownLocation(provider);if(location!=null){//显示当前设备的位置信息showLocation(location);}//4.为了监测到位置信息的变化locationManager.requestLocationUpdates(provider, 5000, 1, locationListener);}@Overrideprotected void onDestroy() {super.onDestroy();if(locationManager!=null){//关闭程序时将监听器移除，保证不会继续耗费手机的电量locationManager.removeUpdates(locationListener);}}LocationListener locationListener = new LocationListener() {@Overridepublic void onStatusChanged(String provider, int status, Bundle extras) {// TODO Auto-generated method stub}@Overridepublic void onProviderEnabled(String provider) {// TODO Auto-generated method stub}@Overridepublic void onProviderDisabled(String provider) {// TODO Auto-generated method stub}@Overridepublic void onLocationChanged(Location location) {// 更新当前设备的位置信息showLocation(location);}};/**显示位置信息*/private void showLocation(Location location) {String j = "经度:"+location.getLongitude();String w = "维度:"+location.getLatitude();String accuracy = "精确度:"+location.getAccuracy();String altitude = "海拔" + location.getAltitude();tvLocation.setText(j+"\n"+w+"\n"+accuracy+"\n"+altitude);}
}

在清单文件中加入权限：

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>