android 实践项目四

 

　　　　　　　　　　　　　　　　android 实践项目四

本周主要是开发android baidumap实现公交的查询

1、权限的取得和对屏幕的支持

    <uses-permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="android.permission.INTERNET" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" >
    </uses-permission>
    <!-- <uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission> -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" >
    </uses-permission>
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_GPS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.READ_SMS" />
    <uses-permission android:name="android.permission.SEND_SMS" />
    <!-- SDK1.5需要android.permission.GET_TASKS权限判断本程序是否为当前运行的应用? -->
    <uses-permission android:name="android.permission.GET_TASKS" />
    <uses-permission android:name="android.permission.CAMERA" >
    </uses-permission>
    <uses-permission android:name="android.permission.RECORD_AUDIO" >
    </uses-permission>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
    </uses-permission>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.BROADCAST_STICKY" />
    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
    <!-- 来电消音 -->
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" >
    </uses-permission>
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

    <supports-screens
        android:anyDensity="true"
        android:largeScreens="true"
        android:normalScreens="false"
        android:resizeable="true"
        android:smallScreens="true" />

 

2、main.java实现

package baidumapsdk.demo;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.InfoWindow;
import com.baidu.mapapi.map.MapPoi;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.SupportMapFragment;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.overlayutil.BusLineOverlay;
import com.baidu.mapapi.search.busline.BusLineResult;
import com.baidu.mapapi.search.busline.BusLineSearch;
import com.baidu.mapapi.search.busline.BusLineSearchOption;
import com.baidu.mapapi.search.busline.OnGetBusLineSearchResultListener;
import com.baidu.mapapi.search.core.PoiInfo;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;
import com.baidu.mapapi.search.poi.PoiCitySearchOption;
import com.baidu.mapapi.search.poi.PoiDetailResult;
import com.baidu.mapapi.search.poi.PoiResult;
import com.baidu.mapapi.search.poi.PoiSearch;

/**
 * 此demo用来展示如何进行公交线路详情检索，并使用RouteOverlay在地图上绘制 同时展示如何浏览路线节点并弹出泡泡
 */
public class BusLineSearchDemo extends FragmentActivity implements
        OnGetPoiSearchResultListener, OnGetBusLineSearchResultListener,
        BaiduMap.OnMapClickListener {
    private Button mBtnPre = null;// 上一个节点
    private Button mBtnNext = null;// 下一个节点
    private int nodeIndex = -2;// 节点索引,供浏览节点时使用
    private BusLineResult route = null;// 保存驾车/步行路线数据的变量，供浏览节点时使用
    private List<String> busLineIDList = null;
    private int busLineIndex = 0;
    // 搜索相关
    private PoiSearch mSearch = null; // 搜索模块，也可去掉地图模块独立使用
    private BusLineSearch mBusLineSearch = null;//城市公交查询
    private BaiduMap mBaiduMap = null;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_busline);
        CharSequence titleLable = "公交线路查询功能";//在图层中显示名称
        setTitle(titleLable);
        mBtnPre = (Button) findViewById(R.id.pre);
        mBtnNext = (Button) findViewById(R.id.next);
        mBtnPre.setVisibility(View.INVISIBLE);
        mBtnNext.setVisibility(View.INVISIBLE);
        mBaiduMap = ((SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.bmapView)).getBaiduMap();
        mBaiduMap.setOnMapClickListener(this);//地图单击事件监听接口
        mSearch = PoiSearch.newInstance();//POI检索接口
        mSearch.setOnGetPoiSearchResultListener(this);//设置poi检索监听者
        mBusLineSearch = BusLineSearch.newInstance();
        mBusLineSearch.setOnGetBusLineSearchResultListener(this);//设置公交详情检索结果监听者
        busLineIDList = new ArrayList<String>();

    }

    /**
     * 发起检索
     * 
     * @param v
     */
    public void searchButtonProcess(View v) {
        busLineIDList.clear();
        busLineIndex = 0;
        mBtnPre.setVisibility(View.INVISIBLE);
        mBtnNext.setVisibility(View.INVISIBLE);
        EditText editCity = (EditText) findViewById(R.id.city);
        EditText editSearchKey = (EditText) findViewById(R.id.searchkey);
        // 发起poi检索，从得到所有poi中找到公交线路类型的poi，再使用该poi的uid进行公交详情搜索
        mSearch.searchInCity((new PoiCitySearchOption()).city(
                editCity.getText().toString()).keyword(
                editSearchKey.getText().toString()));
    }

    public void SearchNextBusline(View v) {
        if (busLineIndex >= busLineIDList.size()) {
            busLineIndex = 0;
        }//在编辑中输入文本得然后获得公交路线
        if (busLineIndex >= 0 && busLineIndex < busLineIDList.size()
                && busLineIDList.size() > 0) {
            mBusLineSearch.searchBusLine((new BusLineSearchOption()
                    .city(((EditText) findViewById(R.id.city)).getText()
                            .toString()).uid(busLineIDList.get(busLineIndex))));

            busLineIndex++;
        }

    }

    /**
     * 节点浏览示例
     * 
     * @param v
     */
    public void nodeClick(View v) {

        if (nodeIndex < -1 || route == null
                || nodeIndex >= route.getStations().size())
            return;
        TextView popupText = new TextView(this);
        popupText.setBackgroundResource(R.drawable.popup);//设置背景源
        popupText.setTextColor(0xff000000);//设置文本颜色
        // 上一个节点
        if (mBtnPre.equals(v) && nodeIndex > 0) {
            // 索引减
            nodeIndex--;
        }
        // 下一个节点
        if (mBtnNext.equals(v) && nodeIndex < (route.getStations().size() - 1)) {
            // 索引加
            nodeIndex++;
        }
        if(nodeIndex >= 0){
            // 移动到指定索引的坐标
            mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(route
                    .getStations().get(nodeIndex).getLocation()));
            // 弹出泡泡
            popupText.setText(route.getStations().get(nodeIndex).getTitle());
            mBaiduMap.showInfoWindow(new InfoWindow(popupText, route.getStations()
                    .get(nodeIndex).getLocation(), 0));
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
    }

    @Override
    protected void onResume() {
        super.onResume();
    }

    @Override
    protected void onDestroy() {
        mSearch.destroy();
        mBusLineSearch.destroy();
        super.onDestroy();
    }

    @Override
    public void onGetBusLineResult(BusLineResult result) {
        if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {
            Toast.makeText(BusLineSearchDemo.this, "抱歉，未找到结果",
                    Toast.LENGTH_LONG).show();
            return;
        }
        mBaiduMap.clear();
        route = result;
        nodeIndex = -1;
        BusLineOverlay overlay = new BusLineOverlay(mBaiduMap);
        mBaiduMap.setOnMarkerClickListener(overlay);
        overlay.setData(result);
        overlay.addToMap();
        overlay.zoomToSpan();
        mBtnPre.setVisibility(View.VISIBLE);
        mBtnNext.setVisibility(View.VISIBLE);
        Toast.makeText(BusLineSearchDemo.this, result.getBusLineName(),
                Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onGetPoiResult(PoiResult result) {

        if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {
            Toast.makeText(BusLineSearchDemo.this, "抱歉，未找到结果",
                    Toast.LENGTH_LONG).show();
            return;
        }
        // 遍历所有poi，找到类型为公交线路的poi
        busLineIDList.clear();
        for (PoiInfo poi : result.getAllPoi()) {
            if (poi.type == PoiInfo.POITYPE.BUS_LINE
                    || poi.type == PoiInfo.POITYPE.SUBWAY_LINE) {
                busLineIDList.add(poi.uid);
            }
        }
        SearchNextBusline(null);
        route = null;
    }

    @Override
    public void onGetPoiDetailResult(PoiDetailResult result) {

    }

    @Override
    public void onMapClick(LatLng point) {
        mBaiduMap.hideInfoWindow();
    }

    @Override
    public boolean onMapPoiClick(MapPoi poi) {
        return false;
    }
}

 

 

 

3、布局的实现.xml

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="在" />

        <EditText
            android:id="@+id/city"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="北京" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="市内找" />

        <EditText
            android:id="@+id/searchkey"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="83" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="公交车" />

        <LinearLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/search"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="2dip"
                android:layout_marginRight="2dip"
                android:layout_weight="1"
                android:background="@drawable/button_style"
                android:onClick="searchButtonProcess"
                android:text="开始" />

            <Button
                android:id="@+id/nextline"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="2dip"
                android:layout_marginRight="2dip"
                android:layout_weight="1"
                android:background="@drawable/button_style"
                android:onClick="SearchNextBusline"
                android:text="下一条" />
        </LinearLayout>
    </LinearLayout>

    <RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <fragment
            android:id="@+id/bmapView"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            class="com.baidu.mapapi.map.SupportMapFragment"
            android:clickable="true" />

        <LinearLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignWithParentIfMissing="false"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="false"
            android:layout_marginBottom="10dip" >

            <Button
                android:id="@+id/pre"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_marginLeft="2dip"
                android:layout_marginRight="2dip"
                android:layout_weight="1.0"
                android:background="@drawable/pre_"
                android:onClick="nodeClick" />

            <Button
                android:id="@+id/next"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:layout_marginLeft="2dip"
                android:layout_marginRight="2dip"
                android:layout_weight="1.0"
                android:background="@drawable/next_"
                android:onClick="nodeClick" />
        </LinearLayout>
    </RelativeLayout>

</LinearLayout>

 

 

 

4、默认的是北京83路公交