Android?高德地图POI定位地址搜索功能

    //高德地图
    implementation 'com.amap.api:3dmap:latest.integration'
    //地图搜索功能
    implementation 'com.amap.api:search:latest.integration'
    //权限申请
    implementation 'com.github.getActivity:XXPermissions:18.3'

<!--允许访问网络，必选权限-->
    <uses-permission android:name="android.permission.INTERNET" />
    <!--允许获取粗略位置，若用GPS实现定位小蓝点功能则必选-->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <!--允许获取网络状态，用于网络定位，若无gps但仍需实现定位小蓝点功能则此权限必选-->
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <!--允许获取wifi网络信息，用于网络定位，若无gps但仍需实现定位小蓝点功能则此权限必选-->
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <!--允许获取wifi状态改变，用于网络定位，若无gps但仍需实现定位小蓝点功能则此权限必选-->
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <!--允许写入扩展存储，用于数据缓存，若无此权限则写到私有目录-->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <!--允许写设备缓存，用于问题排查-->
    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
    <!--允许读设备等信息，用于问题排查-->
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
        tools:ignore="ScopedStorage" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

<meta-data
	android:name="com.amap.api.v2.apikey"
	android:value="******你的key******"/>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    <EditText
        android:id="@+id/et_search"
        android:layout_width="match_parent"
        android:layout_height="33dp"
        android:layout_marginVertical="15dp"
        android:layout_marginHorizontal="10dp"
        android:background="@drawable/round_shape"
        android:gravity="center"
        android:hint="搜索地点"
        android:textColorHint="@color/black"
        android:imeOptions="actionDone"
        android:inputType="text"
        android:paddingHorizontal="10dp"
        android:textColor="@color/black"
        android:textSize="15sp" />
    <RelativeLayout
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <com.amap.api.maps.MapView
            android:id="@+id/mapView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
    </RelativeLayout>
    <ListView
        android:id="@+id/listView"
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    <!--圆角半径-->
    <!-- rounded corner -->
    <corners android:radius="20dp" />
    <!--填充颜色-->
    <solid android:color="#C8C8C8" />
</shape>

//隐私合规接口
MapsInitializer.updatePrivacyShow(this,true,true);
MapsInitializer.updatePrivacyAgree(this,true);

    /**
     * 权限请求
     **/
    private void permission(){
        String[] permission;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            permission=new String[]{
                    Permission.ACCESS_COARSE_LOCATION,
                    Permission.ACCESS_FINE_LOCATION,
                    Permission.MANAGE_EXTERNAL_STORAGE,
                    Permission.READ_PHONE_STATE,
            };
        }
        else {
            permission=new String[]{
                    Permission.ACCESS_COARSE_LOCATION,
                    Permission.ACCESS_FINE_LOCATION,
                    Permission.READ_PHONE_STATE,
            };
        }
        XXPermissions.with(this)
                .permission(permission).request(new OnPermissionCallback() {
                    @Override
                    public void onGranted(@NonNull List<String> permissions, boolean allGranted) {
                        if (allGranted){
                            initLocation();
                            startLocation();
                        }
                        else {
                            Toast.makeText(MainActivity.this, "获取部分权限成功，但部分权限未正常授予", Toast.LENGTH_SHORT).show();
                        }
                    }
                    @Override
                    public void onDenied(@NonNull List<String> permissions, boolean doNotAskAgain) {
                        if (doNotAskAgain){
                            XXPermissions.startPermissionActivity(MainActivity.this,permissions);
                        }
                        else {
                            Toast.makeText(MainActivity.this, "权限获取失败", Toast.LENGTH_SHORT).show();
                        }
                    }
                });
    }

        mMapView=findViewById(R.id.mapView);
        ListView listView = findViewById(R.id.listView);
        EditText search = findViewById(R.id.et_search);
        mMapView.onCreate(savedInstanceState);
        aMap=mMapView.getMap();
        //地图移动监听
        aMap.setOnCameraChangeListener(new AMap.OnCameraChangeListener() {
            @Override
            public void onCameraChange(CameraPosition cameraPosition) {
            }
            @Override
            public void onCameraChangeFinish(CameraPosition cameraPosition) {
                if (!flag){
                    if (poiAdapter!=null){
                        poiAdapter.setSelectPosition(0);
                    }
                    try {
                        getGeocodeSearch(cameraPosition.target);
                        setMapCenter(cameraPosition.target);
                    } catch (AMapException e) {
                        throw new RuntimeException(e);
                    }
                    listView.smoothScrollToPosition(0);
                }
                flag=false;
            }
        });
        permission();
        poiAdapter = new PoiAdapter(beanList,this);
        listView.setAdapter(poiAdapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                poiAdapter.setSelectPosition(position);
                poiAdapter.notifyDataSetChanged();
                selectBean = beanList.get(position);
                flag=true;//当是点击地址条目触发的地图移动时，不进行逆地理解析
                aMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(selectBean.getLatitude(),selectBean.getLongitude()))); //设置地图中心点
            }
        });
        //搜索监听
        search.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                if (!TextUtils.isEmpty(s.toString())){
                    showTip(s.toString());
                }
            }
            @Override
            public void afterTextChanged(Editable s) {
            }
        });

    /**
     * 搜索tip
     **/
    private void showTip(String input){
        InputtipsQuery inputQuery = new InputtipsQuery(input, city);
        Inputtips inputTips = new Inputtips(MainActivity.this, inputQuery);
        inputTips.setInputtipsListener(new Inputtips.InputtipsListener() {
            @Override
            public void onGetInputtips(List<Tip> tipList, int rCode) {
                if (rCode == AMapException.CODE_AMAP_SUCCESS) {// 正确返回
                    if (tipList.size()!=0){
                        beanList.clear();
                        for (Tip tip:tipList){
                            if (tip.getPoint()!=null){
                                beanList.add(new Bean(tip.getName(),tip.getAddress(),tip.getPoint().getLatitude(),tip.getPoint().getLongitude()));
                            }
                        }
                        poiAdapter.notifyDataSetChanged();
                        aMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(tipList.get(0).getPoint().getLatitude(),tipList.get(0).getPoint().getLongitude()))); //设置地图中心点
                    }
                } else {
                    Toast.makeText(MainActivity.this, String.valueOf(rCode), Toast.LENGTH_SHORT).show();
                }
            }
        });
        inputTips.requestInputtipsAsyn();
    }

    /**
     * 初始化定位
     **/
    private void initLocation(){
        if (aMap == null) {
            aMap = mMapView.getMap();
        }
        //设置定位蓝点
        MyLocationStyle myLocationStyle;
        myLocationStyle = new MyLocationStyle();
        myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATE);//定位一次，且将视角移动到地图中心点。
        aMap.setMyLocationStyle(myLocationStyle);//设置定位蓝点的Style
        //设置缩放级别
        aMap.moveCamera(CameraUpdateFactory.zoomTo(15));
        // 控件交互 缩放按钮、指南针、定位按钮、比例尺等
        UiSettings mUiSettings;//定义一个UiSettings对象
        mUiSettings = aMap.getUiSettings();//实例化UiSettings类对象
        mUiSettings.setZoomControlsEnabled(false);
        mUiSettings.setMyLocationButtonEnabled(true); //显示默认的定位按钮
        aMap.setMyLocationEnabled(true);// 可触发定位并显示当前位置
        mUiSettings.setScaleControlsEnabled(true);//控制比例尺控件是否显示
        mUiSettings.setLogoPosition(AMapOptions.LOGO_MARGIN_LEFT);//设置logo位置
    }
    /**
     * 开始定位
     **/
    private void startLocation() {
        try {
            //获取位置信息
            mLocationClient = new AMapLocationClient(this);
        }catch (Exception e){
            e.printStackTrace();
        }
        //初始化定位参数
        AMapLocationClientOption mLocationOption = new AMapLocationClientOption();
        //设置定位监听
        mLocationClient.setLocationListener(this);
        //设置定位模式为高精度模式，Battery_Saving为低功耗模式，Device_Sensors是仅设备模式
        mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);
        //获取一次定位结果
        mLocationOption.setOnceLocation(true);
        //获取最近3s内精度最高的一次定位结果
        mLocationOption.setOnceLocationLatest(true);
        //设置定位参数
        mLocationClient.setLocationOption(mLocationOption);
        //启动定位
        mLocationClient.startLocation();
    }

    /**
     * 定位回调
     **/
    @Override
    public void onLocationChanged(AMapLocation aMapLocation) {
        if (aMapLocation != null && aMapLocation.getErrorCode() == AMapLocation.LOCATION_SUCCESS) {
            LatLng latLng = new LatLng(aMapLocation.getLatitude(), aMapLocation.getLongitude());
            setMapCenter(latLng);
            city = aMapLocation.getCity();
            aMap.animateCamera(CameraUpdateFactory.newLatLng(latLng)); //设置地图中心点
            mLocationClient.stopLocation();
            mLocationClient.onDestroy();
        }
    }

    /**
     * 设置中心点
     **/
    private void setMapCenter(LatLng latLng) {
        MarkerOptions markerOptions=new MarkerOptions()
                .icon(BitmapDescriptorFactory.fromBitmap(BitmapFactory
                        .decodeResource(getResources(),R.mipmap.location_center)))
                .position(latLng);
        if (marker!=null){
            marker.remove();
        }
        marker = aMap.addMarker(markerOptions);
        //坐标系转换，坐标信息转换为屏幕的中心点信息
        Point markerPoint = aMap.getProjection().toScreenLocation(latLng);
        marker.setFixingPointEnable(true);
        marker.setPositionByPixels(markerPoint.x, markerPoint.y);
        //marker动画
        Point point =  aMap.getProjection().toScreenLocation(latLng);
        point.y -= dip2px(this);
        LatLng target = aMap.getProjection().fromScreenLocation(point);
        //使用TranslateAnimation,填写一个需要移动的目标点
        Animation animation = new TranslateAnimation(target);
        animation.setInterpolator(new LinearInterpolator());
        long duration = 300;
        animation.setDuration(duration);
        animation.setInterpolator(new LinearInterpolator());
        marker.setAnimation(animation);
        marker.startAnimation();
    }
    /**
     * dip和px转换
     **/
    private static int dip2px(Context context) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) ((float) 30 * scale + 0.5f);
    }

/**
     * 逆地理编码获取当前位置信息
     **/
    private void getGeocodeSearch(LatLng target) throws AMapException {
        if (geocoderSearch == null){
            geocoderSearch = new GeocodeSearch(this);
            geocoderSearch.setOnGeocodeSearchListener(this);
        }
        // 第一个参数表示一个Latlng，第二参数表示范围多少米，第三个参数表示是火系坐标系还是GPS原生坐标系
        RegeocodeQuery query = new RegeocodeQuery(new LatLonPoint(target.latitude, target.longitude), 500, GeocodeSearch.AMAP);
        query.setExtensions("all");
        geocoderSearch.getFromLocationAsyn(query);
    }
    /**
     * 地理编码
     **/
    private void searchLocation(String address) throws AMapException {
        if (geocoderSearch == null){
            geocoderSearch = new GeocodeSearch(this);
            geocoderSearch.setOnGeocodeSearchListener(this);
        }
        GeocodeQuery query=new GeocodeQuery(address,city);
        geocoderSearch.getFromLocationNameAsyn(query);
    }
    /**
     * 逆地理编码回调
     **/
    @Override
    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int i) {
        if (i != 1000) return;
        beanList.clear();
        List<PoiItem> poiItems=regeocodeResult.getRegeocodeAddress().getPois();
        beanList.add(new Bean("当前位置",regeocodeResult.getRegeocodeAddress().getFormatAddress(),regeocodeResult.getRegeocodeQuery().getPoint().getLatitude(),regeocodeResult.getRegeocodeQuery().getPoint().getLongitude()));
        if (poiItems.size()!=0){
            for (PoiItem poiItem:poiItems){
                beanList.add(new Bean(poiItem.getTitle(),poiItem.getSnippet(),poiItem.getLatLonPoint().getLatitude(),poiItem.getLatLonPoint().getLongitude()));
            }
            poiAdapter.notifyDataSetChanged();
        }
    }
    /**
     * 地理编码回调
     **/
    @Override
    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {
        if (geocodeResult!=null){
            List<GeocodeAddress> geocodeAddressList = geocodeResult.getGeocodeAddressList();
            if (geocodeAddressList!=null&&geocodeAddressList.size()!=0){
                GeocodeAddress address = geocodeAddressList.get(0);
            }
        }
    }

    @Override
    public void onPause() {
        super.onPause();
        mMapView.onPause();
    }
    @Override
    public void onResume() {
        super.onResume();
        mMapView.onResume();
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        mMapView.onDestroy();
        if (mLocationClient !=null){
            mLocationClient.onDestroy();
            mLocationClient =null;
        }
        if (geocoderSearch!=null){
            geocoderSearch=null;
        }
    }

package com.example.locationselect;
import android.content.Context;
import android.graphics.BitmapFactory;
import android.graphics.Point;
import android.os.Build;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.View;
import android.view.animation.LinearInterpolator;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import com.amap.api.location.AMapLocation;
import com.amap.api.location.AMapLocationClient;
import com.amap.api.location.AMapLocationClientOption;
import com.amap.api.location.AMapLocationListener;
import com.amap.api.maps.AMap;
import com.amap.api.maps.AMapOptions;
import com.amap.api.maps.CameraUpdateFactory;
import com.amap.api.maps.MapView;
import com.amap.api.maps.MapsInitializer;
import com.amap.api.maps.UiSettings;
import com.amap.api.maps.model.BitmapDescriptorFactory;
import com.amap.api.maps.model.CameraPosition;
import com.amap.api.maps.model.LatLng;
import com.amap.api.maps.model.Marker;
import com.amap.api.maps.model.MarkerOptions;
import com.amap.api.maps.model.MyLocationStyle;
import com.amap.api.maps.model.animation.Animation;
import com.amap.api.maps.model.animation.TranslateAnimation;
import com.amap.api.services.core.AMapException;
import com.amap.api.services.core.LatLonPoint;
import com.amap.api.services.core.PoiItem;
import com.amap.api.services.geocoder.GeocodeAddress;
import com.amap.api.services.geocoder.GeocodeQuery;
import com.amap.api.services.geocoder.GeocodeResult;
import com.amap.api.services.geocoder.GeocodeSearch;
import com.amap.api.services.geocoder.RegeocodeQuery;
import com.amap.api.services.geocoder.RegeocodeResult;
import com.amap.api.services.help.Inputtips;
import com.amap.api.services.help.InputtipsQuery;
import com.amap.api.services.help.Tip;
import com.hjq.permissions.OnPermissionCallback;
import com.hjq.permissions.Permission;
import com.hjq.permissions.XXPermissions;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity implements AMapLocationListener, GeocodeSearch.OnGeocodeSearchListener{
    private MapView mMapView;
    private AMap aMap;
    private AMapLocationClient mLocationClient;
    private PoiAdapter poiAdapter;
    private final List<Bean> beanList =new ArrayList<>();
    private Marker marker;
    private String city;
    private Bean selectBean;
    private GeocodeSearch geocoderSearch;
    private boolean flag=false;//条目点击标志位
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //隐私合规接口
        MapsInitializer.updatePrivacyShow(this,true,true);
        MapsInitializer.updatePrivacyAgree(this,true);
        mMapView=findViewById(R.id.mapView);
        ListView listView = findViewById(R.id.listView);
        EditText search = findViewById(R.id.et_search);
        mMapView.onCreate(savedInstanceState);
        aMap=mMapView.getMap();
        //地图移动监听
        aMap.setOnCameraChangeListener(new AMap.OnCameraChangeListener() {
            @Override
            public void onCameraChange(CameraPosition cameraPosition) {
            }
            @Override
            public void onCameraChangeFinish(CameraPosition cameraPosition) {
                if (!flag){
                    if (poiAdapter!=null){
                        poiAdapter.setSelectPosition(0);
                    }
                    try {
                        getGeocodeSearch(cameraPosition.target);
                        setMapCenter(cameraPosition.target);
                    } catch (AMapException e) {
                        throw new RuntimeException(e);
                    }
                    listView.smoothScrollToPosition(0);
                }
                flag=false;
            }
        });
        permission();
        poiAdapter = new PoiAdapter(beanList,this);
        listView.setAdapter(poiAdapter);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                poiAdapter.setSelectPosition(position);
                poiAdapter.notifyDataSetChanged();
                selectBean = beanList.get(position);
                flag=true;//当是点击地址条目触发的地图移动时，不进行逆地理解析
                aMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(selectBean.getLatitude(),selectBean.getLongitude()))); //设置地图中心点
            }
        });
        //搜索监听
        search.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                if (!TextUtils.isEmpty(s.toString())){
                    showTip(s.toString());
                }
            }
            @Override
            public void afterTextChanged(Editable s) {
            }
        });
    }
    /**
     * 搜索tip
     **/
    private void showTip(String input){
        InputtipsQuery inputQuery = new InputtipsQuery(input, city);
        Inputtips inputTips = new Inputtips(MainActivity.this, inputQuery);
        inputTips.setInputtipsListener(new Inputtips.InputtipsListener() {
            @Override
            public void onGetInputtips(List<Tip> tipList, int rCode) {
                if (rCode == AMapException.CODE_AMAP_SUCCESS) {// 正确返回
                    if (tipList.size()!=0){
                        beanList.clear();
                        for (Tip tip:tipList){
                            if (tip.getPoint()!=null){
                                beanList.add(new Bean(tip.getName(),tip.getAddress(),tip.getPoint().getLatitude(),tip.getPoint().getLongitude()));
                            }
                        }
                        poiAdapter.notifyDataSetChanged();
                        aMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(tipList.get(0).getPoint().getLatitude(),tipList.get(0).getPoint().getLongitude()))); //设置地图中心点
                    }
                } else {
                    Toast.makeText(MainActivity.this, String.valueOf(rCode), Toast.LENGTH_SHORT).show();
                }
            }
        });
        inputTips.requestInputtipsAsyn();
    }
    /**
     * 权限请求
     **/
    private void permission(){
        String[] permission;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
            permission=new String[]{
                    Permission.ACCESS_COARSE_LOCATION,
                    Permission.ACCESS_FINE_LOCATION,
                    Permission.MANAGE_EXTERNAL_STORAGE,
                    Permission.READ_PHONE_STATE,
            };
        }
        else {
            permission=new String[]{
                    Permission.ACCESS_COARSE_LOCATION,
                    Permission.ACCESS_FINE_LOCATION,
                    Permission.READ_PHONE_STATE,
            };
        }
        XXPermissions.with(this)
                .permission(permission).request(new OnPermissionCallback() {
                    @Override
                    public void onGranted(@NonNull List<String> permissions, boolean allGranted) {
                        if (allGranted){
                            initLocation();
                            startLocation();
                        }
                        else {
                            Toast.makeText(MainActivity.this, "获取部分权限成功，但部分权限未正常授予", Toast.LENGTH_SHORT).show();
                        }
                    }
                    @Override
                    public void onDenied(@NonNull List<String> permissions, boolean doNotAskAgain) {
                        if (doNotAskAgain){
                            XXPermissions.startPermissionActivity(MainActivity.this,permissions);
                        }
                        else {
                            Toast.makeText(MainActivity.this, "权限获取失败", Toast.LENGTH_SHORT).show();
                        }
                    }
                });
    }
    /**
     * 初始化定位
     **/
    private void initLocation(){
        if (aMap == null) {
            aMap = mMapView.getMap();
        }
        //设置定位蓝点
        MyLocationStyle myLocationStyle;
        myLocationStyle = new MyLocationStyle();
        myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATE);//定位一次，且将视角移动到地图中心点。
        aMap.setMyLocationStyle(myLocationStyle);//设置定位蓝点的Style
        //设置缩放级别
        aMap.moveCamera(CameraUpdateFactory.zoomTo(15));
        // 控件交互 缩放按钮、指南针、定位按钮、比例尺等
        UiSettings mUiSettings;//定义一个UiSettings对象
        mUiSettings = aMap.getUiSettings();//实例化UiSettings类对象
        mUiSettings.setZoomControlsEnabled(false);
        mUiSettings.setMyLocationButtonEnabled(true); //显示默认的定位按钮
        aMap.setMyLocationEnabled(true);// 可触发定位并显示当前位置
        mUiSettings.setScaleControlsEnabled(true);//控制比例尺控件是否显示
        mUiSettings.setLogoPosition(AMapOptions.LOGO_MARGIN_LEFT);//设置logo位置
    }
    /**
     * 开始定位
     **/
    private void startLocation() {
        try {
            //获取位置信息
            mLocationClient = new AMapLocationClient(this);
        }catch (Exception e){
            e.printStackTrace();
        }
        //初始化定位参数
        AMapLocationClientOption mLocationOption = new AMapLocationClientOption();
        //设置定位监听
        mLocationClient.setLocationListener(this);
        //设置定位模式为高精度模式，Battery_Saving为低功耗模式，Device_Sensors是仅设备模式
        mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);
        //获取一次定位结果
        mLocationOption.setOnceLocation(true);
        //获取最近3s内精度最高的一次定位结果
        mLocationOption.setOnceLocationLatest(true);
        //设置定位参数
        mLocationClient.setLocationOption(mLocationOption);
        //启动定位
        mLocationClient.startLocation();
    }
    /**
     * 定位回调
     **/
    @Override
    public void onLocationChanged(AMapLocation aMapLocation) {
        if (aMapLocation != null && aMapLocation.getErrorCode() == AMapLocation.LOCATION_SUCCESS) {
            LatLng latLng = new LatLng(aMapLocation.getLatitude(), aMapLocation.getLongitude());
            setMapCenter(latLng);
            city = aMapLocation.getCity();
            aMap.animateCamera(CameraUpdateFactory.newLatLng(latLng)); //设置地图中心点
            mLocationClient.stopLocation();
            mLocationClient.onDestroy();
        }
    }
    /**
     * 设置中心点
     **/
    private void setMapCenter(LatLng latLng) {
        MarkerOptions markerOptions=new MarkerOptions()
                .icon(BitmapDescriptorFactory.fromBitmap(BitmapFactory
                        .decodeResource(getResources(),R.mipmap.location_center)))
                .position(latLng);
        if (marker!=null){
            marker.remove();
        }
        marker = aMap.addMarker(markerOptions);
        //坐标系转换，坐标信息转换为屏幕的中心点信息
        Point markerPoint = aMap.getProjection().toScreenLocation(latLng);
        marker.setFixingPointEnable(true);
        marker.setPositionByPixels(markerPoint.x, markerPoint.y);
        //marker动画
        Point point =  aMap.getProjection().toScreenLocation(latLng);
        point.y -= dip2px(this);
        LatLng target = aMap.getProjection().fromScreenLocation(point);
        //使用TranslateAnimation,填写一个需要移动的目标点
        Animation animation = new TranslateAnimation(target);
        animation.setInterpolator(new LinearInterpolator());
        long duration = 300;
        animation.setDuration(duration);
        animation.setInterpolator(new LinearInterpolator());
        marker.setAnimation(animation);
        marker.startAnimation();
    }
    /**
     * dip和px转换
     **/
    private static int dip2px(Context context) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) ((float) 30 * scale + 0.5f);
    }
    /**
     * 逆地理编码获取当前位置信息
     **/
    private void getGeocodeSearch(LatLng target) throws AMapException {
        if (geocoderSearch == null){
            geocoderSearch = new GeocodeSearch(this);
            geocoderSearch.setOnGeocodeSearchListener(this);
        }
        // 第一个参数表示一个Latlng，第二参数表示范围多少米，第三个参数表示是火系坐标系还是GPS原生坐标系
        RegeocodeQuery query = new RegeocodeQuery(new LatLonPoint(target.latitude, target.longitude), 500, GeocodeSearch.AMAP);
        query.setExtensions("all");
        geocoderSearch.getFromLocationAsyn(query);
    }
    /**
     * 地理编码
     **/
    private void searchLocation(String address) throws AMapException {
        if (geocoderSearch == null){
            geocoderSearch = new GeocodeSearch(this);
            geocoderSearch.setOnGeocodeSearchListener(this);
        }
        GeocodeQuery query=new GeocodeQuery(address,city);
        geocoderSearch.getFromLocationNameAsyn(query);
    }
    /**
     * 逆地理编码回调
     **/
    @Override
    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int i) {
        if (i != 1000) return;
        beanList.clear();
        List<PoiItem> poiItems=regeocodeResult.getRegeocodeAddress().getPois();
        beanList.add(new Bean("当前位置",regeocodeResult.getRegeocodeAddress().getFormatAddress(),regeocodeResult.getRegeocodeQuery().getPoint().getLatitude(),regeocodeResult.getRegeocodeQuery().getPoint().getLongitude()));
        if (poiItems.size()!=0){
            for (PoiItem poiItem:poiItems){
                beanList.add(new Bean(poiItem.getTitle(),poiItem.getSnippet(),poiItem.getLatLonPoint().getLatitude(),poiItem.getLatLonPoint().getLongitude()));
            }
            poiAdapter.notifyDataSetChanged();
        }
    }
    /**
     * 地理编码回调
     **/
    @Override
    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {
        if (geocodeResult!=null){
            List<GeocodeAddress> geocodeAddressList = geocodeResult.getGeocodeAddressList();
            if (geocodeAddressList!=null&&geocodeAddressList.size()!=0){
                GeocodeAddress address = geocodeAddressList.get(0);
            }
        }
    }
    @Override
    public void onPause() {
        super.onPause();
        mMapView.onPause();
    }
    @Override
    public void onResume() {
        super.onResume();
        mMapView.onResume();
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        mMapView.onDestroy();
        if (mLocationClient !=null){
            mLocationClient.onDestroy();
            mLocationClient =null;
        }
        if (geocoderSearch!=null){
            geocoderSearch=null;
        }
    }
}

package com.example.locationselect;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import java.util.List;
public class PoiAdapter extends BaseAdapter {
    private final List<Bean> poiItemList;
    private final Context context;
    private int selectPosition=0;
    public PoiAdapter(List<Bean> poiItemList, Context context) {
        this.poiItemList = poiItemList;
        this.context = context;
    }
    @Override
    public int getCount() {
        return poiItemList == null ? 0:poiItemList.size();
    }
    @Override
    public Object getItem(int position) {
        return poiItemList.get(position);
    }
    @Override
    public long getItemId(int position) {
        return position;
    }
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(android.R.layout.simple_list_item_2, parent, false);
            holder = new ViewHolder();
            holder.text1 = convertView.findViewById(android.R.id.text1);
            holder.text2 = convertView.findViewById(android.R.id.text2);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        Bean bean=poiItemList.get(position);
        holder.text1.setText(bean.getName());
        holder.text2.setText(bean.getAddress());
        if (selectPosition == position){
            holder.text1.setTextColor(context.getColor(R.color.green));
            holder.text2.setTextColor(context.getColor(R.color.green));
        }
        else {
            holder.text1.setTextColor(context.getColor(R.color.black));
            holder.text2.setTextColor(context.getColor(R.color.black));
        }
        return convertView;
    }
    public void setSelectPosition(int selectPosition) {
        this.selectPosition = selectPosition;
    }
    static class ViewHolder {
        TextView text1,text2;
    }
}

package com.example.locationselect;
import java.io.Serializable;
class Bean implements Serializable {
    private String name;
    private String address;
    private double latitude;
    private double longitude;
    public Bean(String name, String address, double latitude, double longitude) {
        this.name = name;
        this.address = address;
        this.latitude = latitude;
        this.longitude = longitude;
    }
    public String getName() {
        return name;
    }
    public String getAddress() {
        return address;
    }
    public double getLatitude() {
        return latitude;
    }
    public double getLongitude() {
        return longitude;
    }
    public void setName(String name) {
        this.name = name;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public void setLatitude(double latitude) {
        this.latitude = latitude;
    }
    public void setLongitude(double longitude) {
        this.longitude = longitude;
    }
}