安卓中百度地图的使用

安卓中百度地图的使用

1.导入到程序中

2.一些权限配置

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

    <application
        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">

        <meta-data
            android:name="com.baidu.lbsapi.API_KEY"
            android:value="Uvo2IDT7i6KFtdeoH1gr7TUrGy6WkvPg"
             />

        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote">
        </service>
    </application>

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />

</manifest>

3.定义显示空间

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/position_text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility="gone"
        />

    <com.baidu.mapapi.map.MapView
        android:id="@+id/bmapView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clickable="true"
        />



</LinearLayout>

4.实现功能

package demo.jq.com.lbstest;


import android.content.pm.PackageManager;
import android.location.Location;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;

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.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.model.LatLng;

import java.util.ArrayList;
import java.util.List;

/**
 * 同一个类文件中，只允许有一个公用类
 * @author jim
 */
public class MainActivity extends AppCompatActivity {

    public LocationClient mLocationClient;
    private TextView positionText;
    private MapView mapView;
    private boolean isFirstLocate = true;
    private BaiduMap baiduMap;
    private static final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        mLocationClient = new LocationClient(getApplicationContext());
        mLocationClient.registerLocationListener(new MyLocationListener());

        SDKInitializer.initialize(getApplicationContext());

        setContentView(R.layout.activity_main);

        mapView = (MapView) findViewById(R.id.bmapView);
        // 获取当前的地图
        baiduMap = mapView.getMap();

        positionText = (TextView) findViewById(R.id.position_text_view);
        List<String> permissionList = new ArrayList<>();
        if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED) {
            permissionList.add(android.Manifest.permission.ACCESS_FINE_LOCATION);
        }

        if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.READ_PHONE_STATE)!= PackageManager.PERMISSION_GRANTED) {
            permissionList.add(android.Manifest.permission.READ_PHONE_STATE);
        }

        if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED) {
            permissionList.add(android.Manifest.permission.WRITE_EXTERNAL_STORAGE);
        }

        if (!permissionList.isEmpty()) {
            String[] permissions = permissionList.toArray(new String[permissionList.size()]);
            ActivityCompat.requestPermissions(MainActivity.this,permissions,1);
        } else {
            requestLocation();
        }

    }

    private void navigateTo(BDLocation location) {
        if (isFirstLocate) {
            Log.d(TAG,"ddd"+isFirstLocate);
            LatLng ll = new LatLng(location.getLatitude(), location.getLongitude());
            MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(ll);
            baiduMap.animateMapStatus(update);

            isFirstLocate = false;
            Log.d(TAG,"ddd"+isFirstLocate);
        }
    }

    private void requestLocation() {
        initLocation();
        mLocationClient.start();
    }

    private void initLocation() {
        LocationClientOption option = new LocationClientOption();
        option.setIsNeedAddress(true);
        mLocationClient.setLocOption(option);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode,String[] permissions,int[] grantResults) {
        switch (requestCode) {
            case 1:
                if (grantResults.length >0) {
                    for (int result :grantResults) {
                        if (result != PackageManager.PERMISSION_DENIED) {
                            Toast.makeText(this,"必须同意权限才能使用本程序",Toast.LENGTH_SHORT).show();
                            finish();
                            return;
                        }
                    }

                    requestLocation();
                } else {
                    Toast.makeText(this,"发生未知错误",Toast.LENGTH_SHORT).show();
                    finish();
                }
                break;
            default:
        }
    }

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

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

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mLocationClient.stop();
        mapView.onDestroy();
    }




    /**
     * 内部类
     */
    public class MyLocationListener implements BDLocationListener {
        @Override
        public void onReceiveLocation(BDLocation location) {
            StringBuilder currentPostion = new StringBuilder();
            currentPostion.append("纬度:").append(location.getLatitude()).append("
");
            currentPostion.append("纬度:").append(location.getLongitude()).append("
");
            currentPostion.append("国家:").append(location.getCountry()).append("
");
            currentPostion.append("省:").append(location.getProvince()).append("
");
            currentPostion.append("市:").append(location.getCity()).append("
");
            currentPostion.append("区:").append(location.getDistrict()).append("
");
            currentPostion.append("街道:").append(location.getStreet()).append("
");
            currentPostion.append("定位方式:");
            if (location.getLocType() == BDLocation.TypeGpsLocation) {
                currentPostion.append("GPS");
            } else {
                currentPostion.append("网络");
            }

            positionText.setText(currentPostion);


            navigateTo(location);
        }
    }

}