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package com.example.sixaunyi;
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import static androidx.constraintlayout.motion.utils.Oscillator.TAG;
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import androidx.annotation.NonNull;
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import androidx.appcompat.app.AppCompatActivity;
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import android.Manifest;
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import android.annotation.SuppressLint;
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import android.content.Intent;
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import android.graphics.BitmapFactory;
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import android.nfc.Tag;
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import android.os.Build;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.widget.TextView;
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import android.widget.Toast;
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import com.amap.api.location.AMapLocation;
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import com.amap.api.location.AMapLocationClient;
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import com.amap.api.location.AMapLocationClientOption;
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import com.amap.api.location.AMapLocationListener;
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import com.amap.api.maps.AMap;
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import com.amap.api.maps.AMapUtils;
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import com.amap.api.maps.LocationSource;
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import com.amap.api.maps.MapView;
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import com.amap.api.maps.model.BitmapDescriptorFactory;
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import com.amap.api.maps.model.LatLng;
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import com.amap.api.maps.model.Marker;
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import com.amap.api.maps.model.MarkerOptions;
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import com.amap.api.services.core.AMapException;
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import com.amap.api.services.core.LatLonPoint;
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import com.amap.api.services.core.PoiItem;
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import com.amap.api.services.geocoder.GeocodeResult;
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import com.amap.api.services.geocoder.GeocodeSearch;
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import com.amap.api.services.geocoder.RegeocodeAddress;
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import com.amap.api.services.geocoder.RegeocodeQuery;
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import com.amap.api.services.geocoder.RegeocodeResult;
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import com.amap.api.services.poisearch.PoiResult;
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import com.amap.api.services.poisearch.PoiSearch;
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import com.google.android.material.floatingactionbutton.FloatingActionButton;
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import java.util.ArrayList;
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import java.util.List;
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import pub.devrel.easypermissions.AfterPermissionGranted;
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import pub.devrel.easypermissions.EasyPermissions;
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public class MainActivity extends AppCompatActivity implements AMapLocationListener, LocationSource,
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AMap.OnMapLongClickListener, GeocodeSearch.OnGeocodeSearchListener, AMap.OnMarkerDragListener,
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AMap.OnMarkerClickListener{
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//请求权限码
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private static final int REQUEST_PERMISSIONS = 9527;
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//声明AMapLocationClient类对象
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public AMapLocationClient mLocationClient = null;
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//声明AMapLocationClientOption对象
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public AMapLocationClientOption mLocationOption = null;
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private MapView mapView = null;
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private String city;
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private LatLng Current_latlng;
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//地图控制器*********非常重要！！！！！！
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private AMap aMap = null;
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//位置更改监听
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private LocationSource.OnLocationChangedListener mListener;
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//地理编码搜索
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private GeocodeSearch geocodeSearch;
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//解析成功标识码
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private static final int PARSE_SUCCESS_CODE = 1000;
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//POI查询对象
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private PoiSearch.Query query;
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//POI搜索对象
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private PoiSearch poiSearch;
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//城市码
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private String cityCode = null;
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//浮动按钮
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private FloatingActionButton fabPOI;
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//浮动按钮 清空地图标点
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private FloatingActionButton ClearMarker_btn;
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//浮动按钮 更换活动
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private FloatingActionButton ChangeAct_btn;
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//标点列表
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private List<Marker> markerList = new ArrayList<>();
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//标识参数类
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private MarkerOptions markerOption = new MarkerOptions();
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@SuppressLint("MissingInflatedId")
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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fabPOI = findViewById(R.id.fab_poi);
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ClearMarker_btn = findViewById(R.id.clearMarker_btn);
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ChangeAct_btn = findViewById(R.id.change_btn);
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ChangeAct_btn.show();
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//tvContent = findViewById(R.id.tv_content);
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/*初始化定位,需要在检查版本之前
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*因为配置好之后才能启动定位，否则会报错
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*/
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initLocation();
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//初始化地图
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initMap(savedInstanceState);
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//检查安卓版本
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checkingAndroidVersion();
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}
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/**
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* 检查Android版本
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*/
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private void checkingAndroidVersion() {
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//Android6.0及以上先获取权限再定位
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if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
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requestPermission();
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}
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//Android6.0以下直接定位
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else {
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//直接定位
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mLocationClient.startLocation();
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}
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}
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/**
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* 动态请求权限
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*/
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@AfterPermissionGranted(REQUEST_PERMISSIONS)
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private void requestPermission() {
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String[] permissions = {
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Manifest.permission.ACCESS_COARSE_LOCATION,
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Manifest.permission.ACCESS_FINE_LOCATION,
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Manifest.permission.READ_PHONE_STATE,
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Manifest.permission.WRITE_EXTERNAL_STORAGE
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};
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if (EasyPermissions.hasPermissions(this, permissions)) {
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//有权限
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//******
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Log.d(TAG, "已获得权限，可以定位啦！");
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showMsg("已获得权限，可以定位啦！");
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//开始定位
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mLocationClient.startLocation();
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} else {
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//false 无权限
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EasyPermissions.requestPermissions(this, "需要权限", REQUEST_PERMISSIONS, permissions);
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}
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}
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//提示框显示文本
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private void showMsg(String msg) {
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Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
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}
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/**
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* 请求权限结果
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* @param requestCode
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* @param permissions
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* @param grantResults
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*/
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@Override
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public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
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super.onRequestPermissionsResult(requestCode, permissions, grantResults);
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//设置请求到的权限结果
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EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
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}
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/******** 初始化定位 *******/
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private void initLocation() {
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//初始化定位
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try {
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mLocationClient = new AMapLocationClient(getApplicationContext());
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} catch (Exception e) {
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e.printStackTrace();
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}
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if (mLocationClient != null) {
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//设置定位回调监听
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mLocationClient.setLocationListener(this);
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//初始化AMapLocationClientOption对象
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mLocationOption = new AMapLocationClientOption();
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//设置定位模式为AMapLocationMode.Hight_Accuracy，高精度模式。
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mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);
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//获取最近3s内精度最高的一次定位结果：
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//设置setOnceLocationLatest(boolean b)接口为true，启动定位时SDK会返回最近3s内精度最高的一次定位结果。如果设置其为true，setOnceLocation(boolean b)接口也会被设置为true，反之不会，默认为false。
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mLocationOption.setOnceLocationLatest(true);
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//设置是否返回地址信息（默认返回地址信息）
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mLocationOption.setNeedAddress(true);
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//设置定位请求超时时间，单位是毫秒，默认30000毫秒，建议超时时间不要低于8000毫秒。
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mLocationOption.setHttpTimeOut(20000);
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//关闭缓存机制，高精度定位会产生缓存。
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mLocationOption.setLocationCacheEnable(false);
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//给定位客户端对象设置定位参数
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mLocationClient.setLocationOption(mLocationOption);
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}
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}
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/**
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* 初始化地图
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* @param savedInstanceState
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*/
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private void initMap(Bundle savedInstanceState) {
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//因为mapView为null，所以要加上这个括号，不可常规的mapView.findViewById
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mapView = (MapView) findViewById(R.id.map_view);
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//在activity执行onCreate时执行mMapView.onCreate(savedInstanceState)，创建地图
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mapView.onCreate(savedInstanceState);
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//初始化地图控制器对象
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aMap = mapView.getMap();
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// 设置定位监听
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aMap.setLocationSource(this);
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// 设置为true表示显示定位层并可触发定位，false表示隐藏定位层并不可触发定位，默认是false
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aMap.setMyLocationEnabled(true);
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//设置地图标志点击事件
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aMap.setOnMarkerClickListener(this);
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//设置地图标志拖拽事件
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aMap.setOnMarkerDragListener(this);
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//开启室内地图
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//aMap.showIndoorMap(true);
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//设置地图长按事件
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aMap.setOnMapLongClickListener(this);
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//构造 GeocodeSearch 对象
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try {
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geocodeSearch = new GeocodeSearch(this);
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} catch (AMapException e) {
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e.printStackTrace();
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}
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//设置监听
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geocodeSearch.setOnGeocodeSearchListener(this);
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}
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/**
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* 激活定位
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*/
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@Override
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public void activate(OnLocationChangedListener onLocationChangedListener) {
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mListener = onLocationChangedListener;
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if (mLocationClient == null) {
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mLocationClient.startLocation();//启动定位
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}
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}
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/**
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* 停止定位
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*/
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@Override
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public void deactivate() {
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mListener = null;
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if (mLocationClient != null) {
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mLocationClient.stopLocation();
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mLocationClient.onDestroy();
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}
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mLocationClient = null;
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}
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@Override
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public void onLocationChanged(AMapLocation aMapLocation) {
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if (aMapLocation != null) {
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//定位成功
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if (aMapLocation.getErrorCode() == 0) {
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//地址
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String address = aMapLocation.getAddress();
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//城市赋值
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city = aMapLocation.getCity();
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//当前位置经纬度坐标
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Current_latlng = new LatLng(aMapLocation.getLatitude(), aMapLocation.getLongitude());
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//获取纬度
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double latitude = aMapLocation.getLatitude();
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//获取经度
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double longitude = aMapLocation.getLongitude();
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Log.d("MainActivity", aMapLocation.getCity());
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showMsg(address);
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//停止定位后，本地定位服务并不会被销毁
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mLocationClient.stopLocation();
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if (mListener != null) {
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// 显示系统图标
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mListener.onLocationChanged(aMapLocation);
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}
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//显示浮动按钮
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fabPOI.show();
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//赋值
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cityCode = aMapLocation.getCityCode();
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}
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else {
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//定位失败时，可通过ErrCode（错误码）信息来确定失败的原因，errInfo是错误信息，详见错误码表。
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Log.e("AmapError", "location Error, ErrCode:"
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+ aMapLocation.getErrorCode() + ", errInfo:"
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+ aMapLocation.getErrorInfo());
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}
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}
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}
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/***********************Activity相关函数，其中添加了保证mapView与activity同步相关函数******************/
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@Override
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protected void onResume() {
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super.onResume();
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//在activity执行onResume时执行mMapView.onResume ()，重新绘制加载地图
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mapView.onResume();
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}
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@Override
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protected void onPause() {
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super.onPause();
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//在activity执行onPause时执行mMapView.onPause ()，暂停地图的绘制
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mapView.onPause();
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}
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@Override
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protected void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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//在activity执行onSaveInstanceState时执行mMapView.onSaveInstanceState (outState)，保存地图当前的状态
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mapView.onSaveInstanceState(outState);
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}
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@Override
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protected void onDestroy() {
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super.onDestroy();
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//销毁定位客户端，同时销毁本地定位服务。
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if (mLocationClient != null) {
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mLocationClient.onDestroy();
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}
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//在activity执行onDestroy时执行mMapView.onDestroy()，销毁地图
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mapView.onDestroy();
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}
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/******************************************************************/
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/* * * 长按地图响应函数 * * */
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//LatLng 为高德地图包自带的存储坐标对象
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@Override
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public void onMapLongClick(LatLng latLng) {
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float distance = AMapUtils.calculateLineDistance(Current_latlng,latLng);
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//showMsg("长按了地图，经度："+latLng.longitude+"，纬度："+latLng.latitude);
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showMsg("直线距离："+distance+"米");
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//坐标转地址
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latlonToAddress(latLng);
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//添加标点
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addMarker(latLng);
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}
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/**
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* 添加地图标点
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* @param latLng
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*/
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private void addMarker(LatLng latLng) {
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//显示浮动按钮
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ClearMarker_btn.show();
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//添加标点
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Marker marker = aMap.addMarker(markerOption
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.position(latLng)
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.draggable(true)
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//标点图标
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.icon(BitmapDescriptorFactory.
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fromBitmap(BitmapFactory.decodeResource(getResources(),R.drawable.img)))
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//备注
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.title("路径点")
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.snippet("距离：")
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);
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marker.showInfoWindow();
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markerList.add(marker);
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}
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/**
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* 清空地图Marker
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* @param view
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*/
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public void clearAllMarker(View view) {
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if (markerList != null && markerList.size()>0){
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for (Marker markerItem : markerList) {
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markerItem.remove();
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}
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}
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ClearMarker_btn.hide();
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}
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public void changeAct(View view) {
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Intent intent = new Intent(MainActivity.this, VideoActivity.class);
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intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
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startActivity(intent);
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}
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/**
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* Marker点击事件
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*
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* @param marker
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* @return
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*/
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@Override
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public boolean onMarkerClick(Marker marker) {
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Log.d(TAG,"点击了标点");
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//显示InfoWindow
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/*
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if (!marker.isInfoWindowShown()) {
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//显示
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marker.showInfoWindow();
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} else {
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//隐藏
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marker.hideInfoWindow();
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}
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*/
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return true;
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}
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/**
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* 开始拖动
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* @param marker
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*/
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@Override
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public void onMarkerDragStart(Marker marker) {
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Log.d(TAG,"开始拖动");
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}
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/**
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* 拖动中
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* @param marker
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*/
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@Override
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public void onMarkerDrag(Marker marker) {
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Log.d(TAG,"拖动中");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 拖动完成
|
|
|
* @param marker
|
|
|
*/
|
|
|
@Override
|
|
|
public void onMarkerDragEnd(Marker marker) {
|
|
|
Log.d(TAG,"拖动完成");
|
|
|
}
|
|
|
|
|
|
|
|
|
/* * * 通过坐标获取地址 * * *
|
|
|
*
|
|
|
* @param latLng
|
|
|
*/
|
|
|
private void latlonToAddress(LatLng latLng) {
|
|
|
//位置点 通过经纬度进行构建
|
|
|
LatLonPoint latLonPoint = new LatLonPoint(latLng.latitude, latLng.longitude);
|
|
|
//逆编码查询 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(latLonPoint, 20, GeocodeSearch.AMAP);
|
|
|
//异步获取地址信息
|
|
|
geocodeSearch.getFromLocationAsyn(query);
|
|
|
}
|
|
|
/*****************************坐标转地址****************************
|
|
|
* @param regeocodeResult
|
|
|
* @param rCode
|
|
|
*/
|
|
|
@Override
|
|
|
public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int rCode) {
|
|
|
if(rCode == PARSE_SUCCESS_CODE){
|
|
|
RegeocodeAddress regeocodeAddress = regeocodeResult.getRegeocodeAddress();
|
|
|
//显示解析后的地址
|
|
|
showMsg("地址："+regeocodeAddress.getFormatAddress());
|
|
|
}else {
|
|
|
showMsg("获取地址失败");
|
|
|
}
|
|
|
}
|
|
|
|
|
|
@Override
|
|
|
public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {
|
|
|
|
|
|
}
|
|
|
/*
|
|
|
@Override
|
|
|
public void onPoiSearched(PoiResult poiResult, int i) {
|
|
|
//解析result获取POI信息
|
|
|
|
|
|
//获取POI组数列表
|
|
|
ArrayList<PoiItem> poiItems = poiResult.getPois();
|
|
|
for (PoiItem poiItem : poiItems) {
|
|
|
Log.d("MainActivity", " Title：" + poiItem.getTitle() + " Snippet：" + poiItem.getSnippet());
|
|
|
}
|
|
|
}*/
|
|
|
/*
|
|
|
@Override
|
|
|
public void (PoiItem poiItem, int i) {
|
|
|
|
|
|
}*/
|
|
|
} |
