实现的就是一个拖动地图,显示地图中心点的位置信息;大部分打车软件的地图选点上车功能;

先上图:

Android 高德地图选点 高德地图手动选点_Android 高德地图选点

实现的功能:

1、显示地图,以及当前位置的蓝点;

2、获取当前位置信息(定位);

3、获取地图中心点坐标,移动地图后获取地图中心点坐标;

4、逆地理编码,根据当前经纬度获取附近的地理位置信息;

①、显示地图和蓝点,设置一些地图上面的显示信息:

if (aMap == null) {
            aMap = mMapView.getMap();
        }
        //设置定位蓝点
        MyLocationStyle myLocationStyle;
        myLocationStyle = new MyLocationStyle();//初始化定位蓝点样式类myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE);//连续定位、且将视角移动到地图中心点,定位点依照设备方向旋转,并且会跟随设备移动。(1秒1次定位)如果不设置myLocationType,默认也会执行此种模式。
        myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER);
        myLocationStyle.interval(2000); //设置连续定位模式下的定位间隔,只在连续定位模式下生效,单次定位模式下不会生效。单位为毫秒。
        myLocationStyle.strokeColor(Color.argb(0, 0, 0, 0));// 设置圆形的边框颜色    不显示范围圆圈
        myLocationStyle.radiusFillColor(Color.argb(0, 0, 0, 0));// 设置圆形的填充颜色 不显示范围圆圈
        aMap.setMyLocationStyle(myLocationStyle);//设置定位蓝点的Style
        aMap.getUiSettings().setMyLocationButtonEnabled(true);//设置默认定位按钮是否显示,非必需设置。
        aMap.setMyLocationEnabled(true);// 设置为true表示启动显示定位蓝点,false表示隐藏定位蓝点并不进行定位,默认是false。

        //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

②、获取当前位置,并把当前位置设置为地图中心点;

//获取位置信息
        mlocationClient = new AMapLocationClient(this);
        //初始化定位参数
        mLocationOption = new AMapLocationClientOption();
        //设置定位监听
        mlocationClient.setLocationListener(MapActivity.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);
        //设置定位间隔,单位毫秒,默认为2000ms
        mLocationOption.setInterval(-1000);
        mLocationOption.setOnceLocation(true);
        //设置定位参数
        mlocationClient.setLocationOption(mLocationOption);
        //启动定位
        mlocationClient.startLocation();
@Override
    public void onLocationChanged(AMapLocation amapLocation) {
        if (amapLocation != null && amapLocation.getErrorCode() == AMapLocation.LOCATION_SUCCESS) {
            L.cc(amapLocation.toStr());
            setMapCenter(amapLocation);
        } else {
            //显示错误信息ErrCode是错误码,errInfo是错误信息,详见错误码表。
            L.cc("AmapError", "location Error, ErrCode:" + amapLocation.getErrorCode() + ", errInfo:" + amapLocation.getErrorInfo());
        }
        mlocationClient.stopLocation();
        mlocationClient.onDestroy();
    }

    private void setMapCenter(AMapLocation amapLocation) {
        aMap.animateCamera(CameraUpdateFactory.newCameraPosition(
                new CameraPosition(new LatLng(amapLocation.getLatitude(), amapLocation.getLongitude())
                        , 15, 0, 0)), 300, null); //设置地图中心点
    }

③、移动地图后,获取中心点位置经纬度,并获取该位置的位置信息;

//地图移动监听
        aMap.setOnCameraChangeListener(new AMap.OnCameraChangeListener() {
            @Override
            public void onCameraChange(CameraPosition cameraPosition) {

            }

            @Override
            public void onCameraChangeFinish(CameraPosition cameraPosition) {
                L.cc(cameraPosition.toString());
//                setMarker(cameraPosition.target);
                animTranslate();
                getGeocodeSearch(cameraPosition.target);
            }
        });
private AnimatorSet animatorSet;
    public void animTranslate(){
       if (animatorSet == null) {
           animatorSet = new AnimatorSet();
           animatorSet.playTogether(ObjectAnimator.ofFloat(ivLocation, "scaleX", 1, 0.5f, 1).setDuration(300)
                   , ObjectAnimator.ofFloat(ivLocation, "scaleY", 1, 0.5f, 1).setDuration(300));
       }animatorSet.start();
    }

    private GeocodeSearch geocoderSearch;

    //逆地理编码获取当前位置信息
    private void getGeocodeSearch(LatLng targe) {
        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(targe.latitude, targe.longitude), 1000, GeocodeSearch.AMAP);
        geocoderSearch.getFromLocationAsyn(query);
    }

    @Override
    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int i) {
        if (i != 1000) return;
        mAdapter.setNewData(regeocodeResult.getRegeocodeAddress().getPois());
        tvLocationHeader.setText(regeocodeResult.getRegeocodeAddress().getProvince()
                + (TextUtils.equals(regeocodeResult.getRegeocodeAddress().getCity(), regeocodeResult.getRegeocodeAddress().getProvince()) ? "" : regeocodeResult.getRegeocodeAddress().getCity())
                + regeocodeResult.getRegeocodeAddress().getDistrict());
        tvLocation.setText("当前位置:" +regeocodeResult.getRegeocodeAddress().getFormatAddress());
    }

    @Override
    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {

    }

OK,这样就完成了,上面的代码供参考;

下面是全部的代码:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:background="@color/main_white"
    android:layout_height="match_parent">

    <RelativeLayout
        android:id="@+id/mapLayout"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp260">
        <com.amap.api.maps.MapView
            android:id="@+id/map"
            android:layout_width="match_parent"
            android:layout_height="260dp" />

        <View
            android:id="@+id/vCenter"
            android:layout_width="1px"
            android:layout_height="1px"
            android:layout_centerInParent="true"
            android:background="@color/transparent"
            />
        <android.support.v7.widget.AppCompatImageView
            android:id="@+id/iv_location"
            android:layout_width="16dp"
            android:layout_height="20dp"
            android:focusable="false"
            android:layout_alignBottom="@id/vCenter"
            android:layout_centerHorizontal="true"
            android:src="@mipmap/icon_location_hei"
            />

    </RelativeLayout>


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@id/mapLayout"
        android:orientation="vertical">

        <TextView
            android:id="@+id/tvLocation"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:paddingLeft="@dimen/dp8"
            android:gravity="center_vertical"
            android:text="我的位置"
            android:textColor="@color/main_text" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1px"
            android:background="@color/line_color"
            />
        <android.support.v7.widget.RecyclerView
            android:id="@+id/rv"
            android:layout_width="match_parent"
            android:layout_height="match_parent"></android.support.v7.widget.RecyclerView>
    </LinearLayout>


</RelativeLayout>
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.widget.AppCompatImageView;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.LinearInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.TextView;

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.UiSettings;
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.RotateAnimation;
import com.amap.api.services.core.LatLonPoint;
import com.amap.api.services.core.PoiItem;
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.chad.library.adapter.base.BaseQuickAdapter;
import com.chad.library.adapter.base.BaseViewHolder;
import com.example.admin.ccb.R;

import www.ccb.com.common.base.BaseActivity;
import www.ccb.com.common.utils.L;
import www.ccb.com.common.utils.ToastUtils;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class MapActivity extends BaseActivity implements View.OnClickListener, AMapLocationListener, GeocodeSearch.OnGeocodeSearchListener {

    private BaseQuickAdapter<PoiItem, BaseViewHolder> mAdapter;

    @Override
    public int getContentViewResource() {
        return R.layout.activity_map;
    }

    private MapView mMapView;
    private AMap aMap = null;
    private TextView tvLocation, tvLocationHeader;
    private RecyclerView rv;
    private View rvHeadView;
    private AppCompatImageView ivLocation;
    //声明mlocationClient对象
    public AMapLocationClient mlocationClient;
    //声明mLocationOption对象
    public AMapLocationClientOption mLocationOption = null;


    @Override
    protected void initView() {
        UpTitle(null);
        mMapView = findViewById(R.id.map);
        mMapView.onCreate(savedInstanceState);
        rv = findViewById(R.id.rv);
        ivLocation = findViewById(R.id.iv_location);
        rv.setLayoutManager(new LinearLayoutManager(this));
        mAdapter = new BaseQuickAdapter<PoiItem, BaseViewHolder>(R.layout.item_maplocation_msg) {
            @Override
            protected void convert(BaseViewHolder helper, PoiItem item) {
                helper.setText(R.id.tvTitle, item.getTitle());
                helper.setText(R.id.tvContent, item.getSnippet());
                helper.itemView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        ToastUtils.showToast(item.getTitle());
                    }
                });
            }

        };
        rv.setAdapter(mAdapter);
        rvHeadView = View.inflate(mContext, R.layout.item_maplocation_head, null);
        tvLocationHeader = rvHeadView.findViewById(R.id.tvTitle);
        mAdapter.setHeaderView(rvHeadView);
    }

    @Override
    protected void initData() {
        if (aMap == null) {
            aMap = mMapView.getMap();
        }
        //设置定位蓝点
        MyLocationStyle myLocationStyle;
        myLocationStyle = new MyLocationStyle();//初始化定位蓝点样式类myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE);//连续定位、且将视角移动到地图中心点,定位点依照设备方向旋转,并且会跟随设备移动。(1秒1次定位)如果不设置myLocationType,默认也会执行此种模式。
        myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE_NO_CENTER);
        myLocationStyle.interval(2000); //设置连续定位模式下的定位间隔,只在连续定位模式下生效,单次定位模式下不会生效。单位为毫秒。
        myLocationStyle.strokeColor(Color.argb(0, 0, 0, 0));// 设置圆形的边框颜色    不显示范围圆圈
        myLocationStyle.radiusFillColor(Color.argb(0, 0, 0, 0));// 设置圆形的填充颜色 不显示范围圆圈
        aMap.setMyLocationStyle(myLocationStyle);//设置定位蓝点的Style
        aMap.getUiSettings().setMyLocationButtonEnabled(true);//设置默认定位按钮是否显示,非必需设置。
        aMap.setMyLocationEnabled(true);// 设置为true表示启动显示定位蓝点,false表示隐藏定位蓝点并不进行定位,默认是false。

        //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

        goLocation();
        //地图移动监听
        aMap.setOnCameraChangeListener(new AMap.OnCameraChangeListener() {
            @Override
            public void onCameraChange(CameraPosition cameraPosition) {

            }

            @Override
            public void onCameraChangeFinish(CameraPosition cameraPosition) {
                L.cc(cameraPosition.toString());
//                setMarker(cameraPosition.target);
                animTranslate();
                getGeocodeSearch(cameraPosition.target);
            }
        });
    }

    private void goLocation() {
        //获取位置信息
        mlocationClient = new AMapLocationClient(this);
        //初始化定位参数
        mLocationOption = new AMapLocationClientOption();
        //设置定位监听
        mlocationClient.setLocationListener(MapActivity.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);
        //设置定位间隔,单位毫秒,默认为2000ms
        mLocationOption.setInterval(-1000);
        mLocationOption.setOnceLocation(true);
        //设置定位参数
        mlocationClient.setLocationOption(mLocationOption);
        //启动定位
        mlocationClient.startLocation();
    }

    @Override
    protected void initList() {
        tvLocation = findViewById(R.id.tvLocation);
        tvLocation.setOnClickListener(this);
    }

    private Marker centerMarker;
    private void setMarker(LatLng target) {
        if (centerMarker != null) centerMarker.remove();
        centerMarker = aMap.addMarker(new MarkerOptions().position(target).title("").snippet(""));
        Animation animation = new RotateAnimation(centerMarker.getRotateAngle() - 180, centerMarker.getRotateAngle(), 0, 0, 0);
//        Animation animation = new TranslateAnimation(target);
        animation.setDuration(360L);
        animation.setInterpolator(new LinearInterpolator());
        centerMarker.setAnimation(animation);
        centerMarker.startAnimation();
    }

    private AnimatorSet animatorSet;
    public void animTranslate(){
       if (animatorSet == null) {
           animatorSet = new AnimatorSet();
           animatorSet.playTogether(ObjectAnimator.ofFloat(ivLocation, "scaleX", 1, 0.5f, 1).setDuration(300)
                   , ObjectAnimator.ofFloat(ivLocation, "scaleY", 1, 0.5f, 1).setDuration(300));
       }animatorSet.start();
    }

    private GeocodeSearch geocoderSearch;

    //逆地理编码获取当前位置信息
    private void getGeocodeSearch(LatLng targe) {
        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(targe.latitude, targe.longitude), 1000, GeocodeSearch.AMAP);
        geocoderSearch.getFromLocationAsyn(query);
    }

    @Override
    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int i) {
        if (i != 1000) return;
        mAdapter.setNewData(regeocodeResult.getRegeocodeAddress().getPois());
        tvLocationHeader.setText(regeocodeResult.getRegeocodeAddress().getProvince()
                + (TextUtils.equals(regeocodeResult.getRegeocodeAddress().getCity(), regeocodeResult.getRegeocodeAddress().getProvince()) ? "" : regeocodeResult.getRegeocodeAddress().getCity())
                + regeocodeResult.getRegeocodeAddress().getDistrict());
        tvLocation.setText("当前位置:" +regeocodeResult.getRegeocodeAddress().getFormatAddress());
    }

    @Override
    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {

    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {

            case R.id.tvLocation:

                break;

        }
    }

    @Override
    public void onLocationChanged(AMapLocation amapLocation) {
        if (amapLocation != null && amapLocation.getErrorCode() == AMapLocation.LOCATION_SUCCESS) {
            L.cc(amapLocation.toStr());
            setMapCenter(amapLocation);
        } else {
            //显示错误信息ErrCode是错误码,errInfo是错误信息,详见错误码表。
            L.cc("AmapError", "location Error, ErrCode:" + amapLocation.getErrorCode() + ", errInfo:" + amapLocation.getErrorInfo());
        }
        mlocationClient.stopLocation();
        mlocationClient.onDestroy();
    }

    private void setMapCenter(AMapLocation amapLocation) {
        aMap.animateCamera(CameraUpdateFactory.newCameraPosition(
                new CameraPosition(new LatLng(amapLocation.getLatitude(), amapLocation.getLongitude())
                        , 15, 0, 0)), 300, null); //设置地图中心点
    }


    @Override
    protected void onDestroy() {
        super.onDestroy();
        //在activity执行onDestroy时执行mMapView.onDestroy(),销毁地图
        mMapView.onDestroy();
    }

    @Override
    protected void onResume() {
        super.onResume();
        //在activity执行onResume时执行mMapView.onResume (),重新绘制加载地图
        mMapView.onResume();
    }

    @Override
    protected void onPause() {
        super.onPause();
        //在activity执行onPause时执行mMapView.onPause (),暂停地图的绘制
        mMapView.onPause();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        //在activity执行onSaveInstanceState时执行mMapView.onSaveInstanceState (outState),保存地图当前的状态
        mMapView.onSaveInstanceState(outState);
    }

}

有很多的基类我就不贴上来了,如果你感觉要的是这样的效果,欢迎查看源码:https://github.com/CuiChenbo/CcMall

https://github.com/CuiChenbo/CcMall/blob/master/app/src/main/java/com/example/admin/ccb/activity/MapActivity.java