在Fragment中实现百度地图，定位到当前位置（基于SDKv2.1.0）

时间：2023-03-10 04:35:17
在Fragment中实现百度地图，定位到当前位置（基于SDKv2.1.0）

使用最新版本的百度地图需要注意的几个地方：
1、libs文件夹下要有android-support-v4.jar、baidumapapi_v2_1_0.jar、locSDK_3.1.jar三个jar包和armeabi文件夹。
2、布局文件要写成<com.baidu.mapapi.map.MapView />，旧版本是写作<com.baidu.mapapi.MapView />的。
3、AndroidMainfest这个配置文件要把该添加的东西都加上。比如各种权限、比如屏幕支持、比如百度地图服务

<service     
   android:name="com.baidu.location.f"

   android:enabled="true"

   android:process=":remote">

</service>

等

4、不要忘了申请自己的密钥。
……时间有限，就写这么多吧，遇到问题就百度一下，基本上也就解决了。
噢，附上自己的demo和各个链接。
百度地图API>Android SDK>相关下载  sdk下载  （http://developer.baidu.com/map/sdkandev-download.htm ）
百度地图API>Android SDK>申请Key  申请key的链接  （http://developer.baidu.com/map/android-mobile-apply-key.htm）
百度地图API>定位 SDK>Android 定位SDK> 定位sdk的链接 （http://developer.baidu.com/map/geosdk-android-download.htm）

1、代码结构：
2、各个类的大致作用：
    (1) Cheeses.java  填充没有用到的Fragment的内容
    (2) DemoApplication.java  从百度地图sdk demo中直接拿来的；主要用来处理与key相关的操作
    (3) MainActivity.java  实现适配器，完成不同Fragment之间的切换
    (4) MapFragment.java  定位相关的操作
3、附上主要类的源码：
    (1) MainActivity.java

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.app.ListFragment;

import android.support.v4.view.ViewPager;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.TextView;

public class MainActivity extends FragmentActivity {

    static final int NUM_ITEMS = ;

    MyAdapter mAdapter;

    ViewPager mPager;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mAdapter = new MyAdapter(getSupportFragmentManager());

        mPager = (ViewPager)findViewById(R.id.pager);

        mPager.setAdapter(mAdapter);

    }

    public static class MyAdapter extends FragmentPagerAdapter {

        public MyAdapter(FragmentManager fm) {

            super(fm);

        }

        @Override

        public int getCount() {

            return NUM_ITEMS;

        }

        @Override

        public Fragment getItem(int position) {

                if (position == ) {

                                return MapFragment.newInstance();

                        }else{

                    return ArrayListFragment.newInstance(position);

                        }

        }

    }

    public static class ArrayListFragment extends ListFragment {

        int mNum;

        /**

         * Create a new instance of CountingFragment, providing "num"

         * as an argument.

         */

        static ArrayListFragment newInstance(int num) {

            ArrayListFragment f = new ArrayListFragment();

            // Supply num input as an argument.

            Bundle args = new Bundle();

            args.putInt("num", num);

            f.setArguments(args);

            return f;

        }

        /**

         * When creating, retrieve this instance's number from its arguments.

         */

        @Override

        public void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            mNum = getArguments() != null ? getArguments().getInt("num") : ;

        }

        /**

         * The Fragment's UI is just a simple text view showing its

         * instance number.

         */

        @Override

        public View onCreateView(LayoutInflater inflater, ViewGroup container,

                Bundle savedInstanceState) {

            View v = inflater.inflate(R.layout.fragment_pager_list, container, false);

            View tv = v.findViewById(R.id.text);

            ((TextView)tv).setText("Fragment #" + mNum);

            return v;

        }

        @Override

        public void onActivityCreated(Bundle savedInstanceState) {

            super.onActivityCreated(savedInstanceState);

            setListAdapter(new ArrayAdapter<String>(getActivity(),

                    android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));

        }

        @Override

        public void onListItemClick(ListView l, View v, int position, long id) {

            Log.i("FragmentList", "Item clicked: " + id);

        }

    }

}

(2)  MapFragment.java

import com.baidu.location.BDLocationListener;

import com.baidu.location.LocationClient;

import com.baidu.location.LocationClientOption;

import com.baidu.mapapi.BMapManager;

import com.baidu.mapapi.map.LocationData;

import com.baidu.mapapi.map.MapController;

import com.baidu.mapapi.map.MapView;

import com.baidu.mapapi.map.MyLocationOverlay;

import com.baidu.platform.comapi.basestruct.GeoPoint;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public class MapFragment extends Fragment {

    static MapView mMapView = null;

    private MapController mMapController = null;

    // 定位相关

        LocationClient mLocClient;

    public MyLocationListenner myListener = new MyLocationListenner();

    MyLocationOverlay myLocationOverlay = null;

    LocationData locData = null;

    static MapFragment newInstance() {

        MapFragment f = new MapFragment();

        return f;

    }

    @Override

    public void onActivityCreated(Bundle savedInstanceState) {

        super.onActivityCreated(savedInstanceState);

    }

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        DemoApplication app = (DemoApplication) getActivity().getApplication();

        if (app.mBMapManager == null) {

            app.mBMapManager = new BMapManager(getActivity());

            app.mBMapManager.init(DemoApplication.strKey, new DemoApplication.MyGeneralListener());

        }

        // LocationClient just init once;

        // start() is moved

        mLocClient = new LocationClient(getActivity());

        LocationClientOption option = new LocationClientOption();

        option.setOpenGps(true);// 打开gps

        option.setCoorType("bd09ll"); // 设置坐标类型

//        option.setScanSpan(5000);        //设置发起定位请求的间隔时间，单位毫秒

        mLocClient.setLocOption(option);

    }

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View v = inflater.inflate(R.layout.activity_locationoverlay, container, false);

        mMapView = (MapView) v.findViewById(R.id.bmapView);

        mMapController = mMapView.getController();

        mMapView.getController().setZoom();

        mMapView.getController().enableClick(true);

        mMapView.setBuiltInZoomControls(true);

        myLocationOverlay = new MyLocationOverlay(mMapView);

        locData = new LocationData();

        myLocationOverlay.setData(locData);

        mMapView.getOverlays().add(myLocationOverlay);

        myLocationOverlay.enableCompass();

        mMapView.refresh();

        return v;

    }

    /**

     * 监听函数，有新位置的时候，格式化成字符串，输出到屏幕中

     */

    public class MyLocationListenner implements BDLocationListener {

        @Override

        public void onReceiveLocation(BDLocation location) {

            if (location == null)

                return;

            costTime = System.currentTimeMillis() - startTime;

            Log.d("MapFragment", "" + costTime);

            locData.latitude = location.getLatitude();

            locData.longitude = location.getLongitude();

            locData.accuracy = location.getRadius();

            locData.direction = location.getDerect();

            myLocationOverlay.setData(locData);

            mMapView.refresh();

            mMapController.animateTo(new GeoPoint((int) (locData.latitude * 1e6), (int) (locData.longitude * 1e6)));

            // if request location success , stop it

            stopRequestLocation();

        }

        public void onReceivePoi(BDLocation poiLocation) {

            if (poiLocation == null) {

                return;

            }

        }

    }

    /**

     * warning: this method is callback by activity manager; Be careful it's

     * lifecycle ： It is called after oncreate , before oncreateview; see

     * detail:

     * http://developer.android.com/reference/android/support/v4/app/Fragment

     * .html#setUserVisibleHint(boolean)

     */

    @Override

    public void setUserVisibleHint(boolean isVisibleToUser) {        //核心方法，避免因Fragment跳转导致地图崩溃

        super.setUserVisibleHint(isVisibleToUser);

        if (isVisibleToUser == true) {

            // if this view is visible to user, start to request user location

            startRequestLocation();

        } else if (isVisibleToUser == false) {

            // if this view is not visible to user, stop to request user

            // location

            stopRequestLocation();

        }

    }

    private void stopRequestLocation() {

        if (mLocClient != null) {

            mLocClient.unRegisterLocationListener(myListener);

            mLocClient.stop();

        }

    }

    long startTime;

    long costTime;

    private void startRequestLocation() {

        // this nullpoint check is necessary

        if (mLocClient != null) {

            mLocClient.registerLocationListener(myListener);

            mLocClient.start();

            mLocClient.requestLocation();

            startTime = System.currentTimeMillis();

        }

    }

    @Override

    public void onPause() {

        mMapView.onPause();

        super.onPause();

    }

    @Override

    public void onResume() {

        mMapView.onResume();

        super.onResume();

    }

    @Override

    public void onDestroy() {

        if (mLocClient != null)

            mLocClient.stop();

        mMapView.destroy();

        super.onDestroy();

    }

    @Override

    public void onSaveInstanceState(Bundle outState) {

        super.onSaveInstanceState(outState);

        mMapView.onSaveInstanceState(outState);

    }

}
    package baidumapsdk.fragment;

    import com.baidu.location.BDLocation;

    import com.baidu.location.BDLocationListener;

    import com.baidu.location.LocationClient;

    import com.baidu.location.LocationClientOption;

    import com.baidu.mapapi.map.BaiduMap;

    import com.baidu.mapapi.map.BitmapDescriptor;

    import com.baidu.mapapi.map.BitmapDescriptorFactory;

    import com.baidu.mapapi.map.MapStatus;

    import com.baidu.mapapi.map.MapStatusUpdate;

    import com.baidu.mapapi.map.MapStatusUpdateFactory;

    import com.baidu.mapapi.map.MapView;

    import com.baidu.mapapi.map.MarkerOptions;

    import com.baidu.mapapi.map.MyLocationData;

    import com.baidu.mapapi.map.BaiduMap.OnMapTouchListener;

    import com.baidu.mapapi.model.LatLng;

    import com.baidu.mapapi.search.core.SearchResult;

    import com.baidu.mapapi.search.geocode.GeoCodeResult;

    import com.baidu.mapapi.search.geocode.GeoCoder;

    import com.baidu.mapapi.search.geocode.OnGetGeoCoderResultListener;

    import com.baidu.mapapi.search.geocode.ReverseGeoCodeOption;

    import com.baidu.mapapi.search.geocode.ReverseGeoCodeResult;

    import baidumapsdk.demo.MapControlDemo;

    import baidumapsdk.demo.R;

    import baidumapsdk.demo.MapControlDemo.MyLocationListenner;

    import android.graphics.Color;

    import android.os.Bundle;

    import android.os.Handler;

    import android.support.v4.app.Fragment;

    import android.util.Log;

    import android.view.Gravity;

    import android.view.LayoutInflater;

    import android.view.MotionEvent;

    import android.view.View;

    import android.view.ViewGroup;

    import android.widget.TextView;

    import android.widget.Toast;

    public class MapFragment extends Fragment implements OnGetGeoCoderResultListener{

            private static final String TAG="MapFragment";

            /**

             * MapView 是地图主控件

             */

            private MapView mMapView;

            private BaiduMap mBaiduMap;

            // 定位相关

            LocationClient mLocClient;

            boolean isFirstLoc = true;// 是否首次定位

            LocationClientOption option = null;

            GeoCoder mSearch = null; // 搜索模块，也可去掉地图模块独立使用

            public MyLocationListenner myListener = new MyLocationListenner();

            private TextView textView_message;

            private Handler handler = new Handler(){

                    public void handleMessage(android.os.Message msg) {

                            switch (msg.what) {

                            case :

    //                                LatLng target = mBaiduMap.getMapStatus().target;

    ////                                MapStatusUpdate mapStatusUpdate = MapStatusUpdateFactory

    ////                                                .newMapStatus(new MapStatus.Builder().target(target)

    ////                                                                .overlook(-15).rotate(180).build());

    ////                                mBaiduMap.setMapStatus(mapStatusUpdate);

    //                                MyLocationData locData = new MyLocationData.Builder()

    //                                .accuracy(100)

    //                                // 此处设置开发者获取到的方向信息，顺时针0-360

    //                                .direction(100).latitude(target.latitude/*+0.00059*/)

    //                                .longitude(target.longitude).build();

    //                                Log.i(TAG, "==-->point.latitude:="+target.latitude+" point.longitude:="+target.longitude);

    //                                mBaiduMap.setMyLocationData(locData);

                                    // 反Geo搜索

                                    mSearch.reverseGeoCode(new ReverseGeoCodeOption()

                                                    .location(mBaiduMap.getMapStatus().target));

    //                                TextView textView = new TextView(getApplicationContext());

    //                                textView.setText("我在这");

    //                                OverlayOptions ooA = new MarkerOptions().position(target).icon(bdA).title("地图位置")

    //                                                .zIndex(9).draggable(true);

    //                                mMarkerA = (Marker) (mBaiduMap.addOverlay(ooA));

                                    break;

                            default:

                                    break;

                            }

                    };

            };

            @Override

            public View onCreateView(LayoutInflater inflater, ViewGroup container,

                            Bundle savedInstanceState) {

                    // TODO Auto-generated method stub

                    View view = inflater.inflate(R.layout.map_fragment, null);

                    mMapView = (MapView) view.findViewById(R.id.bmapView);

                    textView_message = (TextView) view.findViewById(R.id.textView_message);

                    mBaiduMap = mMapView.getMap();

                    // 初始化搜索模块，注册事件监听

                    mSearch = GeoCoder.newInstance();

                    mSearch.setOnGetGeoCodeResultListener(this);

                    // 开启定位图层

                    mBaiduMap.setMyLocationEnabled(true);

                    // 定位初始化

                    mLocClient = new LocationClient(getActivity());

                    mLocClient.registerLocationListener(myListener);

                    option = new LocationClientOption();

                    Log.i(TAG, "==-->option:="+option);

                    option.setOpenGps(true);// 打开gps

                    option.setCoorType("bd09ll"); // 设置坐标类型

                    option.setScanSpan();

                    mLocClient.setLocOption(option);

                    mLocClient.start();

                    return view;

            }

            @Override

            public void onResume() {

                    // TODO Auto-generated method stub

                    super.onResume();

                    mBaiduMap.setOnMapTouchListener(new OnMapTouchListener() {

                            @Override

                            public void onTouch(MotionEvent event) {

                                    mLocClient.stop();

                                    if (event.getAction() == MotionEvent.ACTION_UP) {

                                            clearOverlay(null);

                                            handler.sendEmptyMessage();

                                    }

                            }

                    });

            }

            /**

             * 清除所有Overlay

             *

             * @param view

             */

            public void clearOverlay(View view) {

                    mBaiduMap.clear();

            }

            /**

             * 定位SDK监听函数

             */

            public class MyLocationListenner implements BDLocationListener {

                    @Override

                    public void onReceiveLocation(BDLocation location) {

                            // map view 销毁后不在处理新接收的位置

                            if (location == null || mMapView == null)

                                    return;

    //                        // 反Geo搜索

                            mSearch.reverseGeoCode(new ReverseGeoCodeOption()

                                            .location(mBaiduMap.getMapStatus().target));

                            MyLocationData locData = new MyLocationData.Builder()

                                            .accuracy(location.getRadius())

                                            // 此处设置开发者获取到的方向信息，顺时针0-360

                                            .direction().latitude(location.getLatitude())

                                            .longitude(location.getLongitude()).build();

                            mBaiduMap.setMyLocationData(locData);

                            LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());

                            // 设置地图中心点

                            MapStatusUpdate mapStatusUpdate = MapStatusUpdateFactory

                                            .newMapStatus(new MapStatus.Builder().target(latLng)

                                                            .overlook(-).rotate().build());

                            mBaiduMap.setMapStatus(mapStatusUpdate);

                            if (isFirstLoc) {

                                    isFirstLoc = false;

                                    LatLng ll = new LatLng(location.getLatitude(),

                                                    location.getLongitude());

                                    MapStatusUpdate u = MapStatusUpdateFactory.newLatLng(ll);

                                    mBaiduMap.animateMapStatus(u);

                            }

                    }

                    public void onReceivePoi(BDLocation poiLocation) {

                    }

            }

            @Override

            public void onGetGeoCodeResult(GeoCodeResult result) {

                    if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {

                            Toast.makeText(getActivity(), "抱歉，未能找到结果", Toast.LENGTH_LONG)

                                            .show();

                            return;

                    }

                    mBaiduMap.clear();

                    mBaiduMap.addOverlay(new MarkerOptions().position(result.getLocation())

                                    .icon(BitmapDescriptorFactory

                                                    .fromResource(R.drawable.icon_marka)));

                    mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(result

                                    .getLocation()));

                    String strInfo = String.format("纬度：%f 经度：%f",

                                    result.getLocation().latitude, result.getLocation().longitude);

    //                Toast.makeText(MapControlDemo.this, strInfo, Toast.LENGTH_LONG).show();

            }

            @Override

            public void onGetReverseGeoCodeResult(ReverseGeoCodeResult result) {

                    if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) {

                            Toast.makeText(getActivity(), "抱歉，未能找到结果", Toast.LENGTH_LONG)

                                            .show();

                            return;

                    }

                    mBaiduMap.clear();

    //                mBaiduMap.addOverlay(new MarkerOptions().position(result.getLocation())

    //                                .icon(BitmapDescriptorFactory

    //                                                .fromResource(R.drawable.icon_marka)));

                     BitmapDescriptor bd;

                    LatLng target = mBaiduMap.getMapStatus().target;

                    Double laDouble = (target.latitude+0.0003);

                    LatLng latLng = new LatLng(laDouble,target.longitude);

                     TextView textView = new TextView(getActivity());

                     textView.setGravity(Gravity.CENTER);

                     textView.setBackgroundResource(R.drawable.button_on);

                     textView.setTextColor(Color.RED);

                     textView.setText(result.getAddress());

    //                 bd = BitmapDescriptorFactory.fromBitmap(getBitmapFromView(textView));  //这个属于自定义的

    //                 bd = BitmapDescriptorFactory.fromView(textView)/*(getBitmapFromView(textView))*/;  //这个是官方自身的

    //                 OverlayOptions oo = new MarkerOptions().icon(bd).

    //                 position(latLng);

    //                 mBaiduMap.addOverlay(oo);

    //                mBaiduMap.addOverlay(new TextOptions().bgColor(Color.RED).fontSize(40).text(result.getAddress()).rotate(0).position(latLng/*mBaiduMap.getMapStatus().target*/));

                    mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(result

                                    .getLocation()));

                    textView_message.setText(result.getAddress());

                    textView_message.setTextColor(Color.RED);

                    textView_message.setBackgroundResource(R.drawable.button_on);

    //                Toast.makeText(MapControlDemo.this, result.getAddress(),Toast.LENGTH_LONG).show();

            }

    }