Android GPS 获取

利用手机获取所在地点的经纬度:

在Android 中通过LocationManager 来获取Location .通常获取Location 有GPS 获取，WIFI 获取.

如下介绍GPS获取Location:

在MainActivity中利用LocationManager获取经纬度:

import java.util.List;
import android.app.Activity;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

public class MainActivity extends Activity

{
   private LocationManager manager;
    private final LocationListener mLocationStatusChangeListener = new LocationListener()
       {

           public void onLocationChanged(Location location)
           {
               updateWithNewLocation(location);
           }

           public void onProviderDisabled(String provider)
           {
               updateWithNewLocation(null);
               System.out.println("GPS status: disable!!");
           }

           public void onProviderEnabled(String provider)
           {
               System.out.println("GPS status: enable!!");
           }

           public void onStatusChanged(String provider, int status,Bundle extras)
           {
               System.out.println("GPS status: changed!!");
           }
       };
      public void onCreate(Bundle savedInstanceState)

{
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        manager = (LocationManager) getSystemService(LOCATION_SERVICE);//获取手机位置信息
        List<String> providers = manager.getAllProviders();

       //获取的条件
        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);//获取精准位置
        criteria.setCostAllowed(true);//允许产生开销
        criteria.setPowerRequirement(Criteria.POWER_HIGH);//消耗大的话，获取的频率高
        criteria.setSpeedRequired(true);//手机位置移动
        criteria.setAltitudeRequired(true);//海拔

        //获取最佳provider: 手机或者模拟器上均为gps
        String mBestProvider = manager.getBestProvider(criteria, true);//使用GPS卫星
        System.out.println("The best provier is: "+mBestProvider );
        //parameter: 1. provider 2. 每隔多少时间获取一次 3.每隔多少米 4.监听器触发回调函数
        manager.requestLocationUpdates(bestProvider,60000,100, mLocationStatusChangeListener );
    }
}

第三步:

在AndroidManifest.xml中进行如下配置(加入Location相关权限):

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.gps"
    android:versionCode="1"
    android:versionName="1.0" >
    <uses-sdk android:minSdkVersion="8" />

      <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
      <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
      <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"/>
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".DemoActivity"
            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>

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