MyDawn

Developing a APP similar to dripping, using java to write a simple server can interact with the client and driver side with socket, and multithread technology to achieve a server and multiple clients. The API map of Baidu is used to locate, route and search peripheral services.

通过android利用socket连接客户端，乘客间的信息通过服务端进行转达，最后实现客户端服务端之间的交互

在写之前要先加入百度地图sdk的jar包从百度地图开发者官网上就能下载

百度地图sdk下载

官网（可翻墙选择）：http://developer.android.com/sdk/index.html

不可翻墙选择：http://www.androiddevtools.cn/

而其中用到的一些与定位和路线规划有关的包可以在事例中查看导入

#首先是xml的布局文件，其中editText的background是采用的自定义的样式，而在edittext前面的小点是用来美化界面的，可以直接删除

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FCFCFC" >

    <RelativeLayout
        android:id="@+id/driverb_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="5dp" >

        <ImageButton
            android:id="@+id/driver_inf"
            android:layout_width="20dp"
            android:layout_height="25dp"
            android:layout_marginLeft="5dip"
            android:layout_marginTop="5dip"
            android:background="@drawable/customer"
            android:src="@drawable/transparent_mask" />

        <TextView
            android:id="@+id/driver_city"
            style="@style/customer"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true" />
    </RelativeLayout>

    <com.baidu.mapapi.map.TextureMapView
        android:id="@+id/driver_mTexturemap"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/driverb_layout" >
    </com.baidu.mapapi.map.TextureMapView>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignWithParentIfMissing="false"
        android:layout_below="@id/driverb_layout"
        android:layout_centerHorizontal="true"
        android:background="#00000000" >

        <Button
            android:id="@+id/driver_pre"
            android:layout_width="50dp"
            android:layout_height="40dp"
            android:layout_marginLeft="60dip"
            android:layout_marginRight="2dip"
            android:background="@drawable/pre_"
            android:onClick="nodeClick" />

        <Button
            android:id="@+id/driver_next"
            android:layout_width="50dp"
            android:layout_height="40dp"
            android:layout_marginLeft="85dip"
            android:layout_marginRight="2dip"
            android:background="@drawable/next_"
            android:onClick="nodeClick" />
    </LinearLayout>

    <Button
        android:id="@+id/driver_change"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_below="@id/driverb_layout"
        android:layout_marginLeft="15dp"
        android:layout_marginTop="70dp" />

    <LinearLayout
        android:id="@+id/edit_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="10dp"
        android:layout_marginLeft="15dp"
        android:layout_marginRight="15dp"
        android:background="@drawable/rectangle_radius_fen"
        android:orientation="vertical" >

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:layout_marginTop="10dp"
            android:gravity="center"
            android:text="起点····终点"
            android:textSize="16sp"
            android:textStyle="bold" />

        <EditText
            android:id="@+id/driver_start"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="7dp"
            android:background="@drawable/creat_normal_edittext"
            android:drawableLeft="@drawable/radio_red"
            android:drawablePadding="5dp"
            android:textColor="#303030"
            android:textSize="15dp" />

        <EditText
            android:id="@+id/driver_end"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="7dp"
            android:background="@drawable/creat_normal_edittext"
            android:drawableLeft="@drawable/radio_blue"
            android:drawablePadding="5dp"
            android:hint="您要去哪儿"
            android:textSize="15dp" />

        <Button
            android:id="@+id/driver_go"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dp"
            android:layout_marginTop="5dp"
            android:background="@drawable/transparent_mask"
            android:gravity="center"
            android:onClick="searchButtonProcess"
            android:text="现在出发"
            android:textSize="18sp"
            android:textStyle="bold" />
    </LinearLayout>

</RelativeLayout>

接下来是java代码

主要实现功能为两个：定位和路线规划：

package com.ly.dawn;

import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.InfoWindow;
import com.baidu.mapapi.map.MapPoi;
import com.baidu.mapapi.map.MapStatus;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MyLocationConfiguration;
import com.baidu.mapapi.map.MyLocationConfiguration.LocationMode;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.map.TextureMapView;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.search.core.RouteLine;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.route.BikingRouteLine;
import com.baidu.mapapi.search.route.BikingRoutePlanOption;
import com.baidu.mapapi.search.route.BikingRouteResult;
import com.baidu.mapapi.search.route.DrivingRouteLine;
import com.baidu.mapapi.search.route.DrivingRoutePlanOption;
import com.baidu.mapapi.search.route.DrivingRouteResult;
import com.baidu.mapapi.search.route.OnGetRoutePlanResultListener;
import com.baidu.mapapi.search.route.PlanNode;
import com.baidu.mapapi.search.route.RoutePlanSearch;
import com.baidu.mapapi.search.route.TransitRouteLine;
import com.baidu.mapapi.search.route.TransitRoutePlanOption;
import com.baidu.mapapi.search.route.TransitRouteResult;
import com.baidu.mapapi.search.route.WalkingRouteLine;
import com.baidu.mapapi.search.route.WalkingRoutePlanOption;
import com.baidu.mapapi.search.route.WalkingRouteResult;
import com.ly.overlayutil.BikingRouteOverlay;
import com.ly.overlayutil.DrivingRouteOverlay;
import com.ly.overlayutil.OverlayManager;
import com.ly.overlayutil.TransitRouteOverlay;
import com.ly.overlayutil.WalkingRouteOverlay;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

/**
 * 此demo用来展示如何进行驾车、步行、公交路线搜索并在地图使用RouteOverlay、TransitOverlay绘制
 * 同时展示如何进行节点浏览并弹出泡泡
 */
public class DriverMenu extends Activity implements BaiduMap.OnMapClickListener, OnGetRoutePlanResultListener {
    // 浏览路线节点相关
    Button mBtnPre = null; // 上一个节点
    Button mBtnNext = null; // 下一个节点
    int nodeIndex = -1; // 节点索引,供浏览节点时使用
    RouteLine route = null;
    private String loaclcity = null;
    OverlayManager routeOverlay = null;
    private Button requestLocButton, go;
    private ImageButton driver_inf;
    private LocationMode mCurrentMode;
    BitmapDescriptor mCurrentMarker;
    boolean useDefaultIcon = false;
    private TextView popupText = null, driver_city; // 泡泡view
    private EditText start_edit, end_edit;
    boolean isFirstLoc = true; // 是否首次定位

    // 地图相关，使用继承MapView的MyRouteMapView目的是重写touch事件实现泡泡处理
    // 如果不处理touch事件，则无需继承，直接使用MapView即可
    // 地图控件
    private TextureMapView mMapView = null;
    private BaiduMap mBaidumap;
    // 搜索相关
    RoutePlanSearch mSearch = null; // 搜索模块，也可去掉地图模块独立使用

    // 定位相关
    LocationClient mLocClient;
    public MyLocationListenner myListener = new MyLocationListenner();

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 在使用SDK各组件之前初始化context信息，传入ApplicationContext
        // 注意该方法要再setContentView方法之前实现
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);// 设置标题栏不可用
        SDKInitializer.initialize(getApplicationContext());
        setContentView(R.layout.driver_menu);
        requestLocButton = (Button) findViewById(R.id.driver_change);

        mCurrentMode = LocationMode.COMPASS;
        requestLocButton.setText("罗盘");
        OnClickListener btnClickListener = new OnClickListener() {
            public void onClick(View v) {
                switch (mCurrentMode) {
                case NORMAL:
                    requestLocButton.setText("跟随");
                    mCurrentMode = LocationMode.FOLLOWING;
                    mBaidumap.setMyLocationConfigeration(
                            new MyLocationConfiguration(mCurrentMode, true, mCurren

MyDawn

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MyDawn