android 获取GPS定位

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.yanlei.yl5" >
    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.WRITE_CONTACTS"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

    <uses-permission android:name="android.permission.SET_WALLPAPER"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.RECEIVE_MMS"/>
    <uses-permission android:name="android.permission.WRITE_SMS"/>
    <uses-permission android:name="android.permission.READ_SMS"/>
    <uses-permission android:name="android.permission.NFC"/>
    <uses-permission android:name="android.permission.TRANSMIT_IR"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <!-- For android.media.audiofx.Visualizer -->
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
    <!-- We will request access to the camera, saying we require a camera of some sort but not one with autofocus capability. -->
    <uses-permission android:name="android.permission.CAMERA"/>
    
    <!-- 连接<a href="http://www.it165.net/news/nhlw/" target="_blank" class="keylink">互联网</a>Internet权限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- GPS定位权限 -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>

</manifest>

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="经纬度信息："
        android:textColor="#660000"
        android:textSize="20sp" />

</LinearLayout>

MainActivity.java

package com.example.yanlei.yl5;

import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

//import java.util.logging.Handler;

public class MainActivity extends AppCompatActivity {

    private static final String TAG = MainActivity.class.getSimpleName();
    private double latitude = 0.0;
    private double longitude = 0.0;
    private TextView info;
    private LocationManager locationManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        //requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
        setContentView(R.layout.activity_main);
        info = (TextView) findViewById(R.id.tv);
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            getLocation();
            //gps已打开
        } else {
            toggleGPS();
            new Handler() {}.postDelayed(new Runnable() {
                @Override
                public void run() {
                    getLocation();
                }
            }, 2000);

        }
    }

    private void toggleGPS() {
        Intent gpsIntent = new Intent();
        gpsIntent.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider");
        gpsIntent.addCategory("android.intent.category.ALTERNATIVE");
        gpsIntent.setData(Uri.parse("custom:3"));
        try {
            PendingIntent.getBroadcast(this, 0, gpsIntent, 0).send();
        } catch (PendingIntent.CanceledException e) {
            e.printStackTrace();
            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, locationListener);
            Location location1 = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            if (location1 != null) {
                latitude = location1.getLatitude(); // 经度
                longitude = location1.getLongitude(); // 纬度
            }
        }
    }

    private void getLocation() {
        Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        if (location != null) {
            latitude = location.getLatitude();
            longitude = location.getLongitude();
        } else {

            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, locationListener);
        }
        info.setText("纬度：" + latitude + "\n" + "经度：" + longitude);
    }

    LocationListener locationListener = new LocationListener() {
        // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {
        }

        // Provider被enable时触发此函数，比如GPS被打开
        @Override
        public void onProviderEnabled(String provider) {
            Log.e(TAG, provider);
        }

        // Provider被disable时触发此函数，比如GPS被关闭
        @Override
        public void onProviderDisabled(String provider) {
            Log.e(TAG, provider);
        }

        // 当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
        @Override
        public void onLocationChanged(Location location) {
            if (location != null) {
                Log.e("Map", "Location changed : Lat: " + location.getLatitude() + " Lng: " + location.getLongitude());
                latitude = location.getLatitude(); // 经度
                longitude = location.getLongitude(); // 纬度
            }
        }
    };



     // 打开和关闭gps第二种方法
      private void openGPSSettings() {
        //获取GPS现在的状态（打开或是关闭状态）
        boolean gpsEnabled = Settings.Secure.isLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER);
        if (gpsEnabled) {
            //关闭GPS
            Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, false);
        } else {
            //打开GPS
            Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, true);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {

            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}