eclipse开发android手机定位

一、eclipse开发环境搭建

1.  JDK安装和部署

1)  JDK下载

地址:http://www.oracle.com/technetwork/java/javase/downloads/index.html

本案例下载jdk5.0

2)  JDK安装

默认安装即可;

3)  JDK部署

【我的电脑】—右键—【属性】—【高级】-【环境变量】:

JAVA_HOME= C:/Program Files/Java/jdk1.5.0_02,说明是jdk安装路径

CLASSPATH=%JAVA_HOME%/lib

   Path增加:%JAVA_HOME%/bin

2.  Eclipse安装

地址:http://www.eclipse.org/downloads/

本案例下载eclipse3.6.2

解压缩即可;

打开eclipse.exe,进入【Window】—【Preferences】—【Java】检查Jre安装,入没有则配置路径。

二、android sdkadt嵌入eclispse

1ADT安装

1)下载地址:http://www.android123.com.cn/android_kit.html

2)安装:启动Eclipse,选择【Help > install new software...】,打开界面上输入ADT解压地址,然后安装即可;

本案例安装ADT8.0.0

3.  Android sdk安装

1)下载地址:http://developer.android.com/sdk/index.html

2)解压即可;

3)安装:启动Eclipse,选择【Window > Preferences>Android】,直接设定"SDK Location"SDK的安装解压目录;

4)配置:选择【Window>Android SDK and AVD Manager】,安装SDK版本和

部署dvd

本案例安装sdk2.2API8

至此eclipse开发android即可;

5android sdk升级Google API

如果要开发手机定位,则需要通过Window>Android SDK and AVD Manager】安装Google API,本案例安装与SDK同样的API8Google API

三、创建android工程

1.创建mamdemo工程,包命名为cn..map,命名GMapsActivityActivity

2AndroidManifest.xml配置

<uses-library android:name="com.google.android.maps"/>--含库,application内加

<uses-permission android:name="android.permission.INTERNET" />--网络访问权限,application外加

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>--GPS访问权限,application外加

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>--GPS访问权限,application外加

3.  Main.xml配置

增加:<com.google.android.maps.MapView

    android:id="@+id/MapView1"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:apiKey="0L8E3nd9sIKt0X7nSW8yOqMsAx9ftQlWotNgUXw"

/>

其中android:apiKey需要申请:

1)  debug.keystore路径:

Window > Preferences>Android>Build】页:default debug keystore框内路径即是;

2)  JavaKeytool工具路径:

%JAVA_HOME%/bin路径下有keytool.exe

3)  产生MD5

cmd环境下,切换至debug.keystore路径,并执行命令:keytool -list -keystore debug.keystore,当提示你输入密码时,输入默认的密码android,这样就可以取得MD5值;

4)  获取API key

http://code.google.com/intl/zh-CN/android/maps-api-signup.html

输入MD5值获取APIkey,配置到main.xml中;

5Activity开发

package cn.map;

 

import android.location.Criteria;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import android.provider.Settings;

import android.widget.Toast;

 

import com.google.android.maps.MapActivity;

import com.google.android.maps.MapView;

import java.util.List;

 

import android.content.Context;

import android.content.Intent;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.Point;

import com.google.android.maps.GeoPoint;

import com.google.android.maps.MapController;

import com.google.android.maps.Overlay;

 

 

public class GMapsActivity extends MapActivity {

    private MapView     mMapView;

    private MapController mMapController;

    private GeoPoint mGeoPoint;

    double latitude,longitude;

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState)

    {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        mMapView = (MapView) findViewById(R.id.MapView1);   

        mMapView.setTraffic(true);//设置为交通模式       

        //mMapView.setSatellite(true); //设置为卫星模式       

        //mMapView.setStreetView(false);//设置为街景模式    

        mMapController = mMapView.getController(); //取得MapController对象(控制MapView)

        mMapView.setEnabled(true);

        mMapView.setClickable(true);

        mMapView.setBuiltInZoomControls(true); //设置地图支持缩放     

        mGeoPoint = new GeoPoint((int) (23* 1000000), (int) (113* 1000000)); //设置起点为广州      

        mMapController.animateTo(mGeoPoint); //定位到指定坐标      

        mMapController.setZoom(12);//设置倍数(1-21)

       

        //添加Overlay,用于显示标注信息

        MyLocationOverlay myLocationOverlay = new MyLocationOverlay();

        List<Overlay> list = mMapView.getOverlays();

        list.add(myLocationOverlay);

       

        //通过GPS获取指定坐标

        openGPSSettings();

        getLocation();

    }

    protected boolean isRouteDisplayed()

    {

        return false;

    }

    class MyLocationOverlay extends Overlay

    {

        @Override

        public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when)

        {

            super.draw(canvas, mapView, shadow);

            Paint paint = new Paint();

            Point myScreenCoords = new Point();

            // 将经纬度转换成实际屏幕坐标

            mapView.getProjection().toPixels(mGeoPoint, myScreenCoords);

            paint.setStrokeWidth(1);

            paint.setARGB(255, 255, 0, 0);

            paint.setStyle(Paint.Style.STROKE);

            canvas.drawText("广州欢迎你", myScreenCoords.x, myScreenCoords.y, paint);

            return true;

        }

    }

   

    private void openGPSSettings() {       

    LocationManager alm = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);

    if (alm.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) { 

        Toast.makeText(this, "GPS模块正常", Toast.LENGTH_SHORT).show();

        return;      

        }       

    Toast.makeText(this, "请开启GPS", Toast.LENGTH_SHORT).show(); 

    Intent intent = new Intent(Settings.ACTION_SECURITY_SETTINGS);    

    startActivityForResult(intent,0); //此为设置完成后返回到获取界面

    }

   

    private final LocationListener locationListener = new LocationListener() {  

        public void onLocationChanged(Location location) {

        // 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  

            // log it when the location changes  

            if (location != null) {  

              latitude = location.getLatitude();  //维度     

             longitude= location.getLongitude();   //经度 

                mGeoPoint = new GeoPoint((int)latitude, (int)longitude);

                mMapController.animateTo(mGeoPoint); //定位到指定坐标              

                mMapController.setZoom(12); //设置倍数(1-21)

            }  

        }

 

       public void onProviderDisabled(String provider) {

           // TODO Auto-generated method stub

           // Providerdisable时触发此函数,比如GPS被关闭

       }

       public void onProviderEnabled(String provider) {

           // TODO Auto-generated method stub

           //Providerenable时触发此函数,比如GPS被打开  

       }

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

           // TODO Auto-generated method stub

           //Provider的转态在可用、暂时不可用和无服务三个状态直接切换时触发此函数

       }

    };  

       

    private void getLocation(){    

    // 获取位置管理服务       

    LocationManager locationManager;    

    String serviceName = Context.LOCATION_SERVICE; 

    locationManager = (LocationManager) this.getSystemService(serviceName); 

    // 查找到服务信息    

    Criteria criteria = new Criteria();     

    criteria.setAccuracy(Criteria.ACCURACY_FINE);

    // 高精度     

    criteria.setAltitudeRequired(false);   

     criteria.setBearingRequired(false);   

    criteria.setCostAllowed(true);    

    criteria.setPowerRequirement(Criteria.POWER_LOW);

    // 低功耗       

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

    // 获取GPS信息     

     Location location = locationManager.getLastKnownLocation(provider);

    // 通过GPS获取位置    

    if (location != null) {   

        latitude = location.getLatitude();   //维度 

        longitude= location.getLongitude();  //经度

        mGeoPoint = new GeoPoint((int)latitude, (int)longitude);

            mMapController.animateTo(mGeoPoint); //定位到指定坐标              

            mMapController.setZoom(12); //设置倍数(1-21)

    }

    // 设置监听器,自动更新的最小时间为间隔N(1秒为1*1000)或最小位移变化超过N   

    locationManager.requestLocationUpdates(provider, 100*1000, 500,locationListener);

    }

}

 

四、打包android工程

Export】—【Android】或【Android Tools】—【Export unsigned/ signed Application package】,按步骤即可生产apk文件。关键步骤是重新生成API key

1.生成生产的keystore

Android Tools】—【Export signed Application package】,步骤二中选择“create new keystore”,本案例中:Location=D:/android/workspace/mapdemo.keystorePassword=mapdemo。步骤三中输入keystore各项信息,本案例中:alias=mymapdemoPassword=mapdemo;其他各项照填即可;最后步骤生成apk,这个apk文件还不能发布,需要在后面加上生产API KEY后重新发布。

2.获取MD5API Key

1MD5cmd命令下,切换到D:/android/workspace目录,然后执行命令:keytool –list –keystore mapdemo.keystore,输入密码:mapdemo,产生MD5DA:D3:46:4F:3D:D9:BD:4C:80:B5:F2:0C:03:3B:A1:16

2http://code.google.com/intl/zh-CN/android/maps-api-signup.html

输入MD5值获取APIkey

android:apiKey="0L8E3nd9sIKvPOTtgAttDJpMlCynuALRiOzVz4g"

修改main.xml中原debug.keystore生产的API key

3) 重新发布apk文件

Android Tools】—【Export signed Application package】,步骤二中选择“Use Existing keystore”,本案例中:

Location=D:/android/workspace/mapdemo.keystorePassword=mapdemo

步骤三中也是选择“Use existing keystore“,本案例中:alias=mymapdemoPassword=mapdemo;最后步骤生产apk文件,可发布。

 

 

说明:模拟器上演示地点地图通过,但手机移动GPS定位地图未测试!android2.1手机提示解析包出错,android2.2手机安装成功,和开发的skd2.2版本一致!

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