百度地图之驾车路线的搜索

package com.njupt.bmap_helloworld;

import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.GeoPoint;
import com.baidu.mapapi.MKAddrInfo;
import com.baidu.mapapi.MKBusLineResult;
import com.baidu.mapapi.MKDrivingRouteResult;
import com.baidu.mapapi.MKGeneralListener;
import com.baidu.mapapi.MKPlanNode;
import com.baidu.mapapi.MKPoiResult;
import com.baidu.mapapi.MKSearch;
import com.baidu.mapapi.MKSearchListener;
import com.baidu.mapapi.MKSuggestionResult;
import com.baidu.mapapi.MKTransitRouteResult;
import com.baidu.mapapi.MKWalkingRouteResult;
import com.baidu.mapapi.MapActivity;
import com.baidu.mapapi.MapController;
import com.baidu.mapapi.MapView;
import com.baidu.mapapi.PoiOverlay;
import com.baidu.mapapi.RouteOverlay;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Toast;

public class MainActivity extends MapActivity {

	private MapView mapView;//百度地图的相关控件
	private BMapManager bMapManager;//加载地图的引擎
	private String keyString = "04763B1D8C925195965E838C6E59DB767DAE4BA7";//百度地图的key
	private MapController mapController;//在百度地图上添加一些控件,比如放大或缩小控件
	
	private MKSearch mkSearch;
	private MKPlanNode start;
	private MKPlanNode end;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		mapView = (MapView) findViewById(R.id.bmapView);
		bMapManager = new BMapManager(MainActivity.this);
		
		//必须要加载key
		bMapManager.init(keyString, new MKGeneralListener() {
			
			@Override
			public void onGetPermissionState(int arg0) {
				if(arg0 == 300){
					Toast.makeText(MainActivity.this, "输入的key有误,请核实...", 1).show();
				}
			}
			
			@Override
			public void onGetNetworkState(int arg0) {
				// TODO Auto-generated method stub
				
			}
		});
		
		initMapActivity(bMapManager);
		mapView.setBuiltInZoomControls(true);//表示可以设置缩放功能
		mapController = mapView.getController();
		mapController.setZoom(12);//设置缩放级别

		mkSearch = new MKSearch();
		mkSearch.init(bMapManager, new MySearchListener());
		
		start = new MKPlanNode();
		start.pt = new GeoPoint((int)(39.915*1E6), (int)(116.404*1E6));
		end = new MKPlanNode();
		end.pt = new GeoPoint(40057031, 116307852);
		
		mkSearch.setDrivingPolicy(MKSearch.EBUS_TIME_FIRST);
		mkSearch.drivingSearch(null, start, null, end);
	}

	public class MySearchListener implements MKSearchListener{

		@Override
		public void onGetAddrResult(MKAddrInfo arg0, int arg1) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {
			if(arg0 == null){
				return ;
			}
			
			RouteOverlay routeOverlay = new RouteOverlay(MainActivity.this, mapView);
			routeOverlay.setData(arg0.getPlan(0).getRoute(0));//选择第一条搜索方案中的第一条路线..
			mapView.getOverlays().add(routeOverlay);
			mapView.invalidate();
		}

		@Override
		public void onGetPoiResult(MKPoiResult result, int type, int iError) {
			if(result == null){
				return ;
			}
			
			PoiOverlay poiOverlay = new PoiOverlay(MainActivity.this, mapView);
			poiOverlay.setData(result.getAllPoi());//找到所有符合条件的点
			mapView.getOverlays().add(poiOverlay);
			mapView.invalidate();
		}

		@Override
		public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {
			// TODO Auto-generated method stub
			
		}
		
	}
	@Override
	protected void onDestroy() {
		super.onDestroy();
		
		if(bMapManager != null){
			bMapManager.destroy();
			bMapManager = null;
		}
	}
	
	@Override
	protected void onResume() {
		super.onResume();
		
		if(bMapManager != null){
			bMapManager.start();
		}
	}
	
	@Override
	protected void onPause() {
		super.onPause();
		
		if(bMapManager != null){
			bMapManager.stop();
		}
	}
	@Override
	protected boolean isRouteDisplayed() {
		// TODO Auto-generated method stub
		return false;
	}
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}