Android开发之地理定位的实例代码

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uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

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

 uses-permission android:name="android.permission.INTERNET"/>

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package com.example.a5.myapplication;

import android.Manifest;

import android.content.Context;

import android.content.pm.PackageManager;

import android.location.Criteria;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.support.v4.app.ActivityCompat;

import android.support.v7.app.AlertDialog;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.view.Window;

import android.view.WindowManager;

import android.webkit.WebView;

import android.widget.Button;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  requestWindowFeature(Window.FEATURE_NO_TITLE);

  //全屏

  getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,

    WindowManager.LayoutParams.FLAG_FULLSCREEN);

  setContentView(R.layout.activity_main);

  Button button = (Button) findViewById(R.id.button);

  button.setOnClickListener(new View.OnClickListener() {

   @Override

   public void onClick(View v) {

    //获取位置服务

    LocationManager locationManager = (LocationManager) MainActivity.this.getSystemService(Context.LOCATION_SERVICE);

    Criteria criteria = new Criteria();

    //ACCURACY_HIGH/ACCURACY_LOW精度选择

    criteria.setAccuracy(Criteria.ACCURACY_FINE);

    //高度

    criteria.setAltitudeRequired(true);

    //方位信息

    criteria.setBearingRequired(true);

    //是否允许付费

    criteria.setCostAllowed(true);

    //对电量的要求

    criteria.setPowerRequirement(Criteria.POWER_LOW);

    //速度

    criteria.setSpeedRequired(true);

    //获取最佳服务

    String provider = locationManager.getBestProvider(criteria, true);

    //权限检查

    if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

     return;

    }

    //获取到了位置

    Location location = locationManager.getLastKnownLocation(provider);

    //开启地理位置监听定位类型、毫秒、米、监听时间

    locationManager.requestLocationUpdates(provider,3000,1,new listener());

    locateResult(location);

   }

  });

 }

 public class listener implements LocationListener {

  @Override

  public void onLocationChanged(Location location) {

   //位置变化，获取最新的位置

   locateResult(location);

  }

  @Override

  public void onStatusChanged(String provider, int status, Bundle extras) {

  }

  @Override

  public void onProviderEnabled(String provider) {

  }

  @Override

  public void onProviderDisabled(String provider) {

  }

 }

 public void locateResult(Location location){

  new AlertDialog.Builder(MainActivity.this)

    .setMessage("纬度" + String.valueOf(location.getLatitude()) +

      "\n经度" + String.valueOf(location.getLongitude()) +

      "\n速度" + String.valueOf(location.getSpeed()) +

      "\n高度" + String.valueOf(location.getAltitude()) +

      "\n朝向" + String.valueOf(location.getBearing())

    )

    .setNegativeButton("取消",null)

    .show();

 }

}