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   源码介绍

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有GPS导航，路径规划等功能

import newbaidumap0208.MyOrientationListener.OnOrientationListener;

import com.baidu.lbsapi.auth.LBSAuthManagerListener;
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.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationConfiguration;
import com.baidu.mapapi.map.MyLocationConfiguration.LocationMode;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.model.LatLng;
import com.baidu.navisdk.BNaviEngineManager.NaviEngineInitListener;
import com.baidu.navisdk.BaiduNaviManager;
import com.example.newbaidumap0208.R;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
private Toast mToast;
// 管理mapview的生命周期变量
private MapView mMapView = null;
// private MapGLSurfaceView mMapViewGSV = null;
// 用于初始化BaiduMap
private BaiduMap mBaiduMap;

// 定位相关
private LocationClient mLocationClient;
private MyLocationListener mLocationListener; // 定位的接听器
private boolean isFirstLocation = true;
private Context mContext; // 用于显示当前位置信息
private double mLatitude; // 经度
private double mLongtitude; // 纬度
boolean isRequest = false;// 是否手动触发请求定位
private BitmapDescriptor mIconLocation; // 自定义定位图标
private MyOrientationListener myOrientationListener; // 实例化
private float mCurrentX; // 记录当前位置
private LocationMode mLocationMode;
// 导航
private boolean mIsEngineInitSuccess = false;
//	private Button mBtnGPS;
private NaviEngineInitListener mNaviEngineInitListener = new NaviEngineInitListener() {
public void engineInitSuccess() {
mIsEngineInitSuccess = true;
}

public void engineInitStart() {
}

public void engineInitFail() {
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
SDKInitializer.initialize(getApplicationContext());
setContentView(R.layout.activity_bmap);
// mMapViewGSV = BaiduNaviManager.getInstance().createNMapView(this);
this.mContext = this;
// 进行初始化工作
initView();
// 初始化定位
initLocation();
}

private void initView() {
mMapView = (MapView) findViewById(R.id.bmapView);
// 通过Mapview得到BaiduMap
mBaiduMap = mMapView.getMap();
// 设置地图的放大比例
MapStatusUpdate msu = MapStatusUpdateFactory.zoomTo(15.0f);
mBaiduMap.setMapStatus(msu);

// 点击按钮手动请求定位
((Button) findViewById(R.id.btn_location))
.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
centerToMyLocation();
}
});

((Button) findViewById(R.id.btnGPS))
.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
Intent intentGPS=new Intent();
intentGPS.setClass(MainActivity.this, RouteGuide.class);
startActivity(intentGPS);
}
});
((Button)findViewById(R.id.btnRoutePlan))
.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
Intent intentRoutePlan=new Intent();
intentRoutePlan.setClass(MainActivity.this, RoutePlanDemo.class);
startActivity(intentRoutePlan);
}
});

BaiduNaviManager.getInstance().initEngine(this, getSdcardDir(),
mNaviEngineInitListener, new LBSAuthManagerListener() {
@Override
public void onAuthResult(int status, String msg) {
String str = null;
if (0 == status) {
str = "key校验成功!";
} else {
str = "key校验失败, " msg;
}
Toast.makeText(MainActivity.this, str,
Toast.LENGTH_LONG).show();
}
});

}




private String getSdcardDir() {
if (Environment.getExternalStorageState().equalsIgnoreCase(
Environment.MEDIA_MOUNTED)) {
return Environment.getExternalStorageDirectory().toString();
}
return null;
}


// 初始化定位
private void initLocation() {
mLocationMode = LocationMode.NORMAL;
// 创建实例
mLocationClient = new LocationClient(this);
mLocationListener = new MyLocationListener();
// 注册监听事件
mLocationClient.registerLocationListener(mLocationListener);

// 对LocationClient设置一些必要的配置
LocationClientOption option = new LocationClientOption();
option.setCoorType("bd09ll"); // 坐标类型
option.setIsNeedAddress(true); // 返回的结果中包含地址信息
option.setOpenGps(true); // 打开GPS定位
option.setNeedDeviceDirect(true); // 返回的定位结果包含手机机头的方向
option.setScanSpan(1000);
// 装在定位的属性
mLocationClient.setLocOption(option);

/**
* 初始化自定义定位图标
*/
mIconLocation = BitmapDescriptorFactory
.fromResource(R.drawable.ic_locdirect);
// 初始化
myOrientationListener = new MyOrientationListener(mContext);
myOrientationListener
.setOnOrientationListener(new OnOrientationListener() {

@Override
public void onOrientationChanged(float x) {
mCurrentX = x;
}
});
}

/**
* 显示Toast消息
* 
* @param msg
*/
private void showToast(String msg) {
if (mToast == null) {
mToast = Toast.makeText(this, msg, Toast.LENGTH_SHORT);
} else {
mToast.setText(msg);
mToast.setDuration(Toast.LENGTH_SHORT);
}
mToast.show();
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

// 复写点击菜单项的方法
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// 通过item.getItemId()判断选择项
switch (item.getItemId()) {
case R.id.mapNormal:
mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
break;
case R.id.mapSite:
mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);
break;
case R.id.mapTraffic:
if (mBaiduMap.isTrafficEnabled()) {
mBaiduMap.setTrafficEnabled(false);
item.setTitle("实时交通(off)");
} else {
mBaiduMap.setTrafficEnabled(true);
item.setTitle("实时交通(on)");
}
break;
case R.id.mapModeCommon:
mLocationMode = LocationMode.NORMAL;
break;
case R.id.mapModeFollow:
mLocationMode = LocationMode.FOLLOWING;
break;
case R.id.mapModeCompass:
mLocationMode = LocationMode.COMPASS;
break;
case R.id.btnRoute:
setContentView(R.layout.activity_routeplan);
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}

/*
* 定位到我的位置
*/
private void centerToMyLocation() {
LatLng latLng = new LatLng(mLatitude, mLongtitude);
MapStatusUpdate msu = MapStatusUpdateFactory.newLatLng(latLng);
mBaiduMap.animateMapStatus(msu);
showToast("正在定位......");
}

// 定位事件监听
private class MyLocationListener implements BDLocationListener {
// 定位成功以后的回调
@Override
public void onReceiveLocation(BDLocation location) {
// 开启定位图层
mBaiduMap.setMyLocationEnabled(true);
// 构造定位数据
MyLocationData locData = new MyLocationData.Builder()
//
.direction(mCurrentX)
//
.accuracy(location.getRadius())
// 此处设置开发者获取到的方向信息，顺时针0-360
.latitude(location.getLatitude())
.longitude(location.getLongitude())//
.build();
// 设置定位数据
mBaiduMap.setMyLocationData(locData);

MyLocationConfiguration config = new MyLocationConfiguration(
mLocationMode, true, mIconLocation);
mBaiduMap.setMyLocationConfigeration(config);

// 更新经纬度
mLatitude = location.getLatitude();
mLongtitude = location.getLongitude();

if (isFirstLocation || isRequest) {
LatLng latLng = new LatLng(mLatitude, mLongtitude);
MapStatusUpdate msu = MapStatusUpdateFactory.newLatLng(latLng);
mBaiduMap.animateMapStatus(msu);
isFirstLocation = false;

Toast.makeText(mContext, location.getAddrStr(),
Toast.LENGTH_SHORT).show();
}
}

}

@Override
protected void onStart() {

super.onStart();
// 开启定位
mBaiduMap.setMyLocationEnabled(true);
if (!mLocationClient.isStarted())
mLocationClient.start();
// 开启方向传感器
myOrientationListener.start();
}

@Override
protected void onStop() {
super.onStop();
// 关闭定位
mBaiduMap.setMyLocationEnabled(false);
mLocationClient.stop();
// 关闭方向传感器
myOrientationListener.stop();
}

@Override
protected void onResume() {
super.onResume();
// 在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理
mMapView.onResume();
}

@Override
protected void onDestroy() {
// 在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
mMapView.onDestroy();
super.onDestroy();
}

@Override
protected void onPause() {
super.onPause();
// 在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理
mMapView.onPause();
}
}