首页 / 操作系统 / Linux / 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jdk5.02) 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%/bin2. 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 sdk和adt嵌入eclispse1.ADT安装1)下载地址:http://www.android123.com.cn/android_kit.html2)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ADT8.0.03. Android sdk安装1)下载地址:http://developer.android.com/sdk/index.html2)解压即可;3)安装:启动Eclipse,选择【Window】 > 【Preferences】>【Android】,直接设定"SDK Location"为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sdk2.2,API8至此eclipse开发android即可;5)android 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API8的Google API;三、创建android工程1.创建mamdemo工程,包命名为cn..map,命名GMapsActivity的Activity;2.AndroidManifest.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) Java的Keytool工具路径:%JAVA_HOME%/bin路径下有keytool.exe;3) 产生MD5在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 keyhttp://code.google.com/intl/zh-CN/android/maps-api-signup.html输入MD5值获取APIkey,配置到main.xml中;5.Activity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 // Provider被disable时触发此函数,比如GPS被关闭 } public void onProviderEnabled(String provider) { // TODO Auto-generated method stub //Provider被enable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秒(1秒为1*1000)或最小位移变化超过N米 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.keystore;Password=mapdemo。步骤三中输入keystore各项信息,本案例中:alias=mymapdemo;Password=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MD5和API Key1)MD5:cmd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MD5:DA:D3:46:4F:3D:D9:BD:4C:80:B5:F2:0C:03:3B:A1:162)http://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.keystore;Password=mapdemo;步骤三中也是选择“Use existing keystore“,本案例中:alias=mymapdemo;Password=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!