使用百度地图API，定位并显示自己的位置

来源：互联网发布：bms算法编辑：程序博客网时间：2024/06/03 03:07

使用百度地图的API其实在代码上并不是特别困难，参考一下官网开发指南或者技术书籍都比较好理解，主要的比较麻烦的地方是出在jar，so文件的导入与LocationManager的使用，本篇主要是给一个代码的参考，有读者在其他方面遇到困难的可以参考笔者的其他几篇博客。

jar与so：

解决百度地图找不到SDKInitializer，无法解析的问题

http://blog.csdn.net/double2hao/article/details/49882693

Android Studio百度地图入门（导入jar与so文件）

http://blog.csdn.net/double2hao/article/details/49862435

Android Studio查看SHA1和MD5（附带keystore创建）

http://blog.csdn.net/double2hao/article/details/49861247

LocationManager：

android LocationManager的简单使用（获取经纬度信息到textview显示）

http://blog.csdn.net/double2hao/article/details/49846953

还是先上一下效果：

MainActivity:

import android.app.Activity;import android.content.Context;import android.location.Location;import android.location.LocationListener;import android.location.LocationManager;import android.os.Bundle;import android.widget.Toast;import com.baidu.mapapi.SDKInitializer;import com.baidu.mapapi.map.BaiduMap;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.MyLocationData;import com.baidu.mapapi.model.LatLng;import java.util.List;public class MainActivity extends Activity {    private MapView mapView;    private BaiduMap baiduMap;    private LocationManager locationManager;    private  String provider;    private boolean isFirstLocate =true;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        SDKInitializer.initialize(getApplicationContext());        setContentView(R.layout.activity_main);        mapView = (MapView) findViewById(R.id.map_view);        baiduMap=mapView.getMap();        //设置位置提供器        setLovationManager();        //将显示位置的功能开启        baiduMap.setMyLocationEnabled(true);    }    private void setLovationManager() {        locationManager=(LocationManager)getSystemService(Context.LOCATION_SERVICE);        //获取所有可用的位置提供器        List<String> providerList=locationManager.getProviders(true);        if(providerList.contains(LocationManager.GPS_PROVIDER)){            provider=LocationManager.GPS_PROVIDER;        }else if(providerList.contains(LocationManager.NETWORK_PROVIDER)){            provider=LocationManager.NETWORK_PROVIDER;        }else {            //当前没有可用的位置提供器时，弹出Toast提示            Toast.makeText(this,"没有可用的位置提供器",Toast.LENGTH_SHORT).show();            return;        }        Location location=locationManager.getLastKnownLocation(provider);        if(location!=null){            navigateTo(location);        }        locationManager.requestLocationUpdates(provider,5000,5,locationListener);    }    private void navigateTo(Location location) {        //如果是第一次创建，就获取位置信息并且将地图移到当前位置        //为防止地图被反复移动，所以就只在第一次创建时执行        if(isFirstLocate){            //LatLng对象主要用来存放经纬度            //zoomTo是用来设置百度地图的缩放级别，范围为3~19，数值越大越精确            LatLng ll=new LatLng(location.getLatitude(),location.getLongitude());            MapStatusUpdate update= MapStatusUpdateFactory.newLatLng(ll);            baiduMap.animateMapStatus(update);            update=MapStatusUpdateFactory.zoomTo(16f);            baiduMap.animateMapStatus(update);            isFirstLocate=false;        }        //封装设备当前位置并且显示在地图上        //由于设备在地图上显示的位置会根据我们当前位置而改变，所以写到if外面        MyLocationData.Builder locationBuilder=new MyLocationData.Builder();        locationBuilder.latitude(location.getLatitude());        locationBuilder.longitude(location.getLongitude());        MyLocationData locationData=locationBuilder.build();        baiduMap.setMyLocationData(locationData);    }    LocationListener locationListener =new LocationListener() {        @Override        public void onLocationChanged(Location location) {            if(locationManager!=null)                navigateTo(location);        }        @Override        public void onStatusChanged(String s, int i, Bundle bundle) {        }        @Override        public void onProviderEnabled(String s) {        }        @Override        public void onProviderDisabled(String s) {        }    };    @Override    protected void onDestroy() {        super.onDestroy();        //最后要销毁mapView        //关闭程序时将监听器移除        //关闭可以显示位置的功能        mapView.onDestroy();        if(locationManager!=null){            locationManager.removeUpdates(locationListener);        }        baiduMap.setMyLocationEnabled(false);    }    @Override    protected void onPause() {        super.onPause();        mapView.onPause();    }    @Override    protected void onResume() {        super.onResume();        mapView.onResume();    }}

activity_main:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    >    <com.baidu.mapapi.map.MapView        android:id="@+id/map_view"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:clickable="true">    </com.baidu.mapapi.map.MapView></LinearLayout>

Androidmanifest:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.baidumaptest2">    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <meta-data            android:name="com.baidu.lbsapi.API_KEY"            android:value="lPdICf3mOjPpwXsUzv8Omgec"/>        <activity            android:name=".MainActivity"            android:label="@string/app_name"            android:theme="@style/AppTheme.NoActionBar">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>    //以下为权限设置    <uses-permission android:name="android.permission.GET_ACCOUNTS" />    <uses-permission android:name="android.permission.USE_CREDENTIALS" />    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />    <permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >    </permission>    <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" /></manifest>

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