android获取定位服务,Android使用网络获取定位的方法

本文实例为大家分享了Android使用网络获取定位的具体代码，供大家参考，具体内容如下

目标效果：

程序运行弹出权限选择，选择运行网络定位后会查询位置，然后在TextView上显示当前国家和城市。

1.activity_main.xml页面定义TextView显示城市名。

activity_main.xml页面：

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:paddingBottom="@dimen/activity_vertical_margin"

android:paddingLeft="@dimen/activity_horizontal_margin"

android:paddingRight="@dimen/activity_horizontal_margin"

android:paddingTop="@dimen/activity_vertical_margin"

tools:context=".MainActivity" >

android:id="@+id/text"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="正在定位。。。" />

2.新建Common.java页面，设置公共常量。

Common.java页面：

package com.sc.demo.common;

/**

* 公共常量

* @author wxy

*

*/

public class Common {

public static final String LOCATION = "location";

public static final String LOCATION_ACTION = "locationAction";

}

3.新建LocationSvc.java页面作为服务进行定位。

LocationSvc.java页面：

package com.sc.demo.locate;

import com.sc.demo.common.Common;

import android.app.Service;

import android.content.Intent;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import android.os.IBinder;

import android.util.Log;

import android.widget.Toast;

/**

* 定位服务

* @author wxy

*

*/

public class LocationSvc extends Service implements LocationListener {

private LocationManager locationManager;

@Override

public IBinder onBind(Intent intent) {

return null;

}

@Override

public void onCreate() {

locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

}

@Override

public void onStart(Intent intent, int startId) {

if (locationManager.getProvider(LocationManager.NETWORK_PROVIDER) != null) locationManager

.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0,

this);

else if (locationManager.getProvider(LocationManager.GPS_PROVIDER) != null) locationManager

.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,

this);

else Toast.makeText(this, "无法定位", Toast.LENGTH_SHORT).show();

}

@Override

public boolean stopService(Intent name) {

return super.stopService(name);

}

@Override

public void onLocationChanged(Location location) {

//通知Activity

Intent intent = new Intent();

intent.setAction(Common.LOCATION_ACTION);

intent.putExtra(Common.LOCATION, location.toString());

sendBroadcast(intent);

// 如果只是需要定位一次，这里就移除监听，停掉服务。如果要进行实时定位，可以在退出应用或者其他时刻停掉定位服务。

locationManager.removeUpdates(this);

stopSelf();

}

@Override

public void onProviderDisabled(String provider) {

}

@Override

public void onProviderEnabled(String provider) {

}

@Override

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

}

}

4.MainActivity.java页面获取经纬度，然后根据经纬度获取城市名。

MainActivity.java页面：

package com.sc.demo;

import java.io.IOException;

import java.util.List;

import com.sc.demo.common.Common;

import com.sc.demo.locate.LocationSvc;

import android.location.Address;

import android.location.Geocoder;

import android.os.Bundle;

import android.util.Log;

import android.widget.TextView;

import android.app.Activity;

import android.app.ProgressDialog;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

public class MainActivity extends Activity {

private TextView text;

private ProgressDialog dialog;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

text = (TextView) findViewById(R.id.text);

// 注册广播

IntentFilter filter = new IntentFilter();

filter.addAction(Common.LOCATION_ACTION);

this.registerReceiver(new LocationBroadcastReceiver(), filter);

// 启动服务

Intent intent = new Intent();

intent.setClass(this, LocationSvc.class);

startService(intent);

// 等待提示

dialog = new ProgressDialog(this);

dialog.setMessage("正在定位...");

dialog.setCancelable(true);

dialog.show();

}

private class LocationBroadcastReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

if (!intent.getAction().equals(Common.LOCATION_ACTION))

return;

String locationInfo = intent.getStringExtra(Common.LOCATION);

double latitude = Double //截取经纬度转换为double型

.parseDouble(locationInfo.substring(17, 26));

double longitude = Double.parseDouble(locationInfo

.substring(27, 37));

text.setText(getaddress(latitude, longitude));

dialog.dismiss();

MainActivity.this.unregisterReceiver(this);// 不需要时注销

}

public String getaddress(double latitude, double longitude) {

String cityName = "";

List

addList = null;

Geocoder ge = new Geocoder(MainActivity.this);

try {

addList = ge.getFromLocation(latitude, longitude, 1);

} catch (IOException e) {

e.printStackTrace();

}

if (addList != null && addList.size() > 0) {

for (int i = 0; i < addList.size(); i++) {

Address ad = addList.get(i);

cityName += ad.getCountryName() + ";" + ad.getLocality();

}

}

Log.i("wxy", "city:" + cityName);

return cityName;

}

}

}

5.AndroidManifest.xml页面添加权限并声明服务。

AndroidManifest.xml页面：

package="com.sc.demo"

android:versionCode="1"

android:versionName="1.0" >

android:minSdkVersion="8"

android:targetSdkVersion="18" />

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

android:name="com.sc.demo.MainActivity"

android:label="@string/app_name" >

6.运行就能显示目标效果了。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。