Android Studio实现简单的百度地图定位_android studio编写定位功能java代码

         **Android Studio实现简单的百度地图定位**
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项目前期准备可观看以下的视频回放:

腾讯课堂知识回放

代码实现:

DemoApplication.java

package com.example.lk.baidumapapplication;

import android.app.Application;

import com.baidu.mapapi.CoordType;
import com.baidu.mapapi.SDKInitializer;

public class DemoApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        SDKInitializer.initialize(this);
        SDKInitializer.setCoordType(CoordType.BD09LL);
    }
}

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MainActivity.java

package com.example.lk.baidumapapplication;

import android.app.Activity;
import android.os.Bundle;
import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.BDLocation;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationData;

public class MainActivity extends Activity {

    private MapView mMapView = null;
    private BaiduMap mBaiduMap;
    private LocationClient mLocationClient;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mMapView = findViewById(R.id.bmapView);

        mBaiduMap = mMapView.getMap();
        mBaiduMap.setMyLocationEnabled(true);
        mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);

        mLocationClient = new LocationClient(getApplicationContext());

        //通过LocationClientOption设置LocationClient相关参数
        LocationClientOption option = new LocationClientOption();
        option.setOpenGps(true); // 打开gps
        option.setCoorType("bd09ll"); // 设置坐标类型
        option.setScanSpan(1000);

        //设置locationClientOption
        mLocationClient.setLocOption(option);

        //注册LocationListener监听器
        MyLocationListener myLocationListener = new MyLocationListener();
        mLocationClient.registerLocationListener(myLocationListener);
        //开启地图定位图层
        mLocationClient.start();

    }

    public class MyLocationListener extends BDAbstractLocationListener {
        @Override
        public void onReceiveLocation(BDLocation bdLocation) {
            //mapView 销毁后不在处理新接收的位置
            if (bdLocation == null || mMapView == null){
                return;
            }
            MyLocationData locData = new MyLocationData.Builder()
                    .accuracy(bdLocation.getRadius())
                    // 此处设置开发者获取到的方向信息，顺时针0-360
                    .direction(bdLocation.getDirection()).latitude(bdLocation.getLatitude())
                    .longitude(bdLocation.getLongitude()).build();
            mBaiduMap.setMyLocationData(locData);
        }
    }

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

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

    @Override
    protected void onDestroy() {
        mLocationClient.stop();
        mBaiduMap.setMyLocationEnabled(false);
        mMapView.onDestroy();
        mMapView = null;
        super.onDestroy();
    }
}

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AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.lk.baidumapapplication">

    <application
        android:name=".DemoApplication"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <meta-data
            android:name="com.baidu.lbsapi.API_KEY"
            android:value="ocub75Kt1EnqSqGwEtyToMxjsG4GW8fG" />

        <service android:name="com.baidu.location.f"
            android:enabled="true"
            android:process=":remote"/>
    </application>
    <!-- 访问网络，进行地图相关业务数据请求，包括地图数据，路线规划，POI检索等 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- 获取网络状态，根据网络状态切换进行数据请求网络转换 -->
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <!-- 读取外置存储。如果开发者使用了so动态加载功能并且把so文件放在了外置存储区域，则需要申请该权限，否则不需要 -->
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <!-- 写外置存储。如果开发者使用了离线地图，并且数据写在外置存储区域，则需要申请该权限 -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <!-- 这个权限用于进行网络定位 -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <!-- 这个权限用于访问GPS定位 -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

</manifest>
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源码：码云地址