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有两种定位的方式：
1.基于GPS定位； 2.基于网络定位。GPS定位的 好处 ：精确度高； 坏处 ：仅能在户外使用，获取定位信息速度慢，耗费电池。
网络定位的 好处 ：户内户外都能使用，定位速度快，电量耗费低； 坏处 ：精确度不太高。android原生定位框架的核心组件是
系统服务，获取这个组件并不需要实例化，通常是通过函数 获得，该函数会返回一个LocationManager的实例，示例代码如下：// Acquire a reference to the system Location Manager
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
LocationListener
通过回调（callback）来获取用户定位信息
// Define a listener that responds to location updatesLocationListener locationListener = new LocationListener() { public void onLocationChanged(Location location) { // Called when a new location is found by the network location provider. // 这个函数中的location就是获取到的位置信息 } public void onStatusChanged(String provider, int status, Bundle extras) {} public void onProviderEnabled(String provider) {} public void onProviderDisabled(String provider) {} }; 同时我们需要调用函数 requestLocationUpdates 绑定 // Register the listener with the Location Manager to receive location updateslocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
定位功能的使用需要获取定位权限
如果使用NETWORK_PROVIDER ，那么需要请求 android.permission.ACCESS_COARSE_LOCATION
如果使用 GPS_PROVIDER 或者同时使用上述两种定位方式，那么需要请求
android.permission.ACCESS_FINE_LOCATION
同时，如果你的app的运行环境是Android 5.0（API Level 21）或更高（If your app targets Android 5.0 (API level 21) or higher），那么你还需要显式请求
Geocoder可以将一个地址转变为经纬度，或者将经纬度转变为地址。android.hardware.location.network
或者 android.hardware.location.gps
package com.example.demo;import android.Manifest;import android.app.Activity;import android.content.Context;import android.content.pm.PackageManager;import android.location.Address;import android.location.Criteria;import android.location.Geocoder;import android.location.Location;import android.location.LocationListener;import android.location.LocationManager;import android.os.Bundle;import android.support.v4.content.ContextCompat;import android.text.TextUtils;import android.text.method.ScrollingMovementMethod;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.TextView;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.Date;import java.util.List;import java.util.Locale;public class LocationActivity extends Activity implements View.OnClickListener { private static final String TAG = LocationActivity.class.getSimpleName(); private LocationManager locationManager; private LocationListener locationListener; private TextView tv; private Button btnStart; private Button btnEnd; private Button btnClean; private StringBuilder stringBuilder = new StringBuilder(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_location); setTitle("原生定位"); tv = findViewById(R.id.tv); btnStart = findViewById(R.id.btnStart); btnEnd = findViewById(R.id.btnEnd); btnClean = findViewById(R.id.btnClean); btnStart.setOnClickListener(this); btnEnd.setOnClickListener(this); btnClean.setOnClickListener(this); //设置文字太长时TextView可以上下滑动 tv.setMovementMethod(ScrollingMovementMethod.getInstance()); locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); locationListener = new LocationListener() { @Override public void onLocationChanged(Location location) { stringBuilder.append(getTime()).append("\t定位信息：\n"); stringBuilder.append("\t").append(location.getLatitude()).append("\n"); stringBuilder.append("\t").append(location.getLongitude()).append("\n"); stringBuilder.append("\t").append(location.getProvider()).append("\n"); tv.setText(stringBuilder); Geocoder gc = new Geocoder(LocationActivity.this, Locale.getDefault()); List locationList = null; try { locationList = gc.getFromLocation(location.getLatitude(), location.getLongitude(), 1); } catch (IOException e) { e.printStackTrace(); } Address address = locationList.get(0);//得到Address实例 if (address == null) { return; } stringBuilder.append(getTime()).append("\t地址信息：\n"); String countryName = address.getCountryName();//得到国家名称 if (!TextUtils.isEmpty(countryName)) { stringBuilder.append(countryName); } String adminArea = address.getAdminArea();//省 if (!TextUtils.isEmpty(adminArea)) { stringBuilder.append(adminArea); } String locality = address.getLocality();//得到城市名称 if (!TextUtils.isEmpty(locality)) { stringBuilder.append(locality); } for (int i = 0; address.getAddressLine(i) != null; i++) { String addressLine = address.getAddressLine(i); if(!TextUtils.isEmpty(addressLine)) { if(addressLine.contains(countryName)){ addressLine = addressLine.replace(countryName,""); } if(addressLine.contains(adminArea)){ addressLine = addressLine.replace(adminArea,""); } if(addressLine.contains(locality)){ addressLine = addressLine.replace(locality,""); } if(!TextUtils.isEmpty(addressLine)) { stringBuilder.append(addressLine); } } } String featureName = address.getFeatureName();//得到周边信息 if(!TextUtils.isEmpty(featureName)) { stringBuilder.append(featureName).append("\n"); } tv.setText(stringBuilder); } @Override public void onStatusChanged(String provider, int status, Bundle extras) { } @Override public void onProviderEnabled(String provider) { } @Override public void onProviderDisabled(String provider) { } }; } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btnStart: stringBuilder.append(getTime()).append("\t开始定位\n"); tv.setText(stringBuilder); if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_DENIED) { return; } if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_DENIED) { return; } locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener); locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); break; case R.id.btnEnd: locationManager.removeUpdates(locationListener); stringBuilder.append(getTime()).append("\t结束定位\n\n"); tv.setText(stringBuilder); break; case R.id.btnClean: stringBuilder.delete(0, stringBuilder.length()); tv.setText(stringBuilder); break; default: break; } } private String getTime() { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss", Locale.getDefault()); return simpleDateFormat.format(new Date(System.currentTimeMillis())); }} 转载地址：http://dles.baihongyu.com/