体温填报APP--地图显示位置信息

package com.example.tiwen20;

import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
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.MapStatus;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.map.OverlayOptions;
import com.baidu.mapapi.map.TextOptions;
import com.baidu.mapapi.model.LatLng;
import java.util.ArrayList;
import java.util.List;

public class MapActivity extends AppCompatActivity implements View.OnClickListener{
    private MapView mMapView;
    private BaiduMap mBaiduMap;
    public LocationClient mLocationClient;
    public BDLocationListener myListener = new MyLocationListener();
    private Button bt;
    private Button button;
    private Button buttons;
    private LatLng latLng;
    private boolean isFirstLoc = true; // 是否首次定位
    private TiwenDB tiwenDB;
    private List<TiwenBean> listMPandroid;
    private Cursor cursor;
    private TextView zhengchang_tv,yichang_tv,weitian_tv,biaoti_tv;
    private int zhengchang=0,yichang=0,weitian=0,zongshu=0,tianbiao=0;
    private UserDB userDB;
    private SQLiteDatabase dbreader,dbreader1;
    private String time,classes;
    private Cursor cursor1;
    private Intent i;
    private RelativeLayout layout;
    private Context context;
    private LayoutInflater inflater;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //在使用SDK各组件之前初始化context信息，传入ApplicationContext
        //注意该方法要再setContentView方法之前实现
        SDKInitializer.initialize(getApplicationContext());
        setContentView(R.layout.activity_map);
        initView();
        initMap();
        i=getIntent();
        time=i.getStringExtra("time");
        classes=i.getStringExtra("classes");
        tongji(time);
    }
    public void tongji(String time){
        tiwenDB = new TiwenDB(this);
        userDB = new UserDB(this);
        dbreader = tiwenDB.getReadableDatabase();
        dbreader1 = userDB.getReadableDatabase();
        cursor1 = dbreader1.rawQuery("select * from users",null);
        zongshu = cursor1.getCount();
        cursor = dbreader.rawQuery("select * from tiwens where time='"+time+"'",null);
        tianbiao = cursor.getCount();
        cursor.moveToFirst();
        cursor = dbreader.rawQuery("select * from tiwens where time='"+time+"' and tiwen>36.0 and tiwen<37.0",null);
        zhengchang = cursor.getCount();
        yichang = tianbiao-zhengchang;
        weitian = zongshu-tianbiao;
        inittongji();
    }
    public View inittongji(){
        inflater = LayoutInflater.from(this);
        layout = (RelativeLayout) inflater.inflate(R.layout.activity_map,null);
        zhengchang_tv=(TextView)findViewById(R.id.tv_zhengchang);
        yichang_tv=(TextView)findViewById(R.id.tv_yichang);
        weitian_tv=(TextView)findViewById(R.id.tv_weitian);
        biaoti_tv=(TextView)findViewById(R.id.tv_biaoti);
        biaoti_tv.setText(time+"各省体温统计结果");
        zhengchang_tv.setText(" "+zhengchang);
        yichang_tv.setText(" "+yichang);
        weitian_tv.setText(" "+weitian);
        return layout;
    }
    public Double[] vandv1(String a){
        String[] arr1 = a.split("_");
        double var1 = Double.parseDouble(arr1[arr1.length-2]);
        double var2 = Double.parseDouble(arr1[arr1.length-1]);
        Double[] var = new Double[2];
        var[0] = var1;
        var[1] = var2;
        return var;
    }
    private void initMap() {
        //获取地图控件引用
        mBaiduMap = mMapView.getMap();
        //普通地图
        mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
        mBaiduMap.setMyLocationEnabled(true);
        //默认显示普通地图
        mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);

        tiwenDB = new TiwenDB(this);
        listMPandroid = new ArrayList<>();
        listMPandroid = tiwenDB.getall();

        for(int i=0;i<listMPandroid.size();i++) {
            Double[] var = vandv1(listMPandroid.get(i).getDidian());
            LatLng llText = new LatLng(var[0], var[1]);
            //2.构建文字Option对象，用于在地图上添加文字
            OverlayOptions ooText = new TextOptions()
                    .position(llText)
                    .text(listMPandroid.get(i).getName() + "  " + listMPandroid.get(i).getTiwen())
                    .bgColor(0xAAFFFF00)
                    .fontSize(24)
                    .fontColor(0xFFFF0000);

            //3.在地图上添加该文字对象并显示
            mBaiduMap.addOverlay(ooText);
        }



        //开启交通图
        //mBaiduMap.setTrafficEnabled(true);
        //开启热力图
        //mBaiduMap.setBaiduHeatMapEnabled(true);
        // 开启定位图层
        mBaiduMap.setMyLocationEnabled(true);
        mLocationClient = new LocationClient(getApplicationContext());     //声明LocationClient类
        //配置定位SDK参数
        initLocation();
        mLocationClient.registerLocationListener(myListener);    //注册监听函数
        //开启定位
        mLocationClient.start();
        //图片点击事件，回到定位点
        mLocationClient.requestLocation();
    }

    //配置定位SDK参数
    private void initLocation() {
        LocationClientOption option = new LocationClientOption();
        option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy
        );//可选，默认高精度，设置定位模式，高精度，低功耗，仅设备
        option.setCoorType("bd09ll");//可选，默认gcj02，设置返回的定位结果坐标系
        int span = 1000;
        option.setScanSpan(span);//可选，默认0，即仅定位一次，设置发起定位请求的间隔需要大于等于1000ms才是有效的
        option.setIsNeedAddress(true);//可选，设置是否需要地址信息，默认不需要
        option.setOpenGps(true);//可选，默认false,设置是否使用gps
        option.setLocationNotify(true);//可选，默认false，设置是否当GPS有效时按照1S/1次频率输出GPS结果
        option.setIsNeedLocationDescribe(true);//可选，默认false，设置是否需要位置语义化结果，可以在BDLocation
        // .getLocationDescribe里得到，结果类似于“在北京天安门附近”
        option.setIsNeedLocationPoiList(true);//可选，默认false，设置是否需要POI结果，可以在BDLocation.getPoiList里得到
        option.setIgnoreKillProcess(false);
        option.setOpenGps(true); // 打开gps
        //可选，默认true，定位SDK内部是一个SERVICE，并放到了独立进程，设置是否在stop的时候杀死这个进程，默认不杀死
        option.SetIgnoreCacheException(false);//可选，默认false，设置是否收集CRASH信息，默认收集
        option.setEnableSimulateGps(false);//可选，默认false，设置是否需要过滤GPS仿真结果，默认需要
mLocationClient.setLocOption(option);
    }    

//实现BDLocationListener接口,BDLocationListener为结果监听接口，异步获取定位结果
public class MyLocationListener implements BDLocationListener {        

@Override
public void onReceiveLocation(BDLocation location) {            
latLng = new LatLng(location.getLatitude(), location.getLongitude());
// 构造定位数据
            MyLocationData locData = new MyLocationData.Builder()                    .accuracy(location.getRadius())                    

// 此处设置开发者获取到的方向信息，顺时针0-360
                    .direction(100).latitude(location.getLatitude())                    .longitude(location.getLongitude()).build()
;
// 设置定位数据
mBaiduMap.setMyLocationData(locData);
// 当不需要定位图层时关闭定位图层
//mBaiduMap.setMyLocationEnabled(false);
if (isFirstLoc) {                
isFirstLoc = false;
                LatLng ll = new LatLng(location.getLatitude(),
                        location.getLongitude());
                MapStatus.Builder builder = new MapStatus.Builder();
                builder.target(ll).zoom(18.0f);
mBaiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));

                if (location.getLocType() == BDLocation.TypeGpsLocation) {                    
// GPS定位结果
                    Toast.makeText(MapActivity.this, location.getAddrStr(), Toast.LENGTH_SHORT).show();
                } else if (location.getLocType() == BDLocation.TypeNetWorkLocation) {                    
// 网络定位结果
                    Toast.makeText(MapActivity.this, location.getAddrStr(), Toast.LENGTH_SHORT).show();

                } else if (location.getLocType() == BDLocation.TypeOffLineLocation) {                    
// 离线定位结果
                    Toast.makeText(MapActivity.this, location.getAddrStr(), Toast.LENGTH_SHORT).show();

                } else if (location.getLocType() == BDLocation.TypeServerError) {                    Toast.
makeText(MapActivity.this, "服务器错误，请检查", Toast.LENGTH_SHORT).show();
                } else if (location.getLocType() == BDLocation.TypeNetWorkException) {                    Toast.
makeText(MapActivity.this, "网络错误，请检查", Toast.LENGTH_SHORT).show();
                } else if (location.getLocType() == BDLocation.TypeCriteriaException) {                    Toast.
makeText(MapActivity.this, "手机模式错误，请检查是否飞行", Toast.LENGTH_SHORT).show();
                }            }        }    }    




private void initView() {        
mMapView = (MapView) findViewById(R.id.bmapView);
bt = (Button) findViewById(R.id.bt);
bt.setOnClickListener(this);
button = (Button) findViewById(R.id.button);
button.setOnClickListener(this);
buttons = (Button) findViewById(R.id.buttons);
buttons.setOnClickListener(this);
    }    

@Override
protected void onDestroy() {        
super.onDestroy();
//在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
mMapView.onDestroy();
    }    

@Override
protected void onResume() {        
super.onResume();
//在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理
mMapView.onResume();
    }    

@Override
protected void onPause() {        
super.onPause();
//在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理
mMapView.onPause();
    }    

@Override
public void onClick(View v) {        
switch (v.getId()) {            
case R.id.bt:                
//把定位点再次显现出来
                MapStatusUpdate mapStatusUpdate = MapStatusUpdateFactory.newLatLng(latLng);
mBaiduMap.animateMapStatus(mapStatusUpdate);
                break;
            case R.id.button:                
//卫星地图
mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);
                break;
            case R.id.buttons:                
//普通地图
mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
                break;
        }    }}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.tiwen20.MapActivity">

    <com.baidu.mapapi.map.MapView
        android:id="@+id/bmapView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/ll"
        android:clickable="true"></com.baidu.mapapi.map.MapView>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_centerInParent="true"
        android:layout_alignParentTop="true">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textSize="20dp"
            android:id="@+id/tv_biaoti"
            >
        </TextView>
        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:textSize="20dp"
                android:text="河北省">
            </TextView>
            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:orientation="vertical">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="30dp"
            android:text="正常"
            android:textColor="#00FF00">
        </TextView>
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="30dp"
            android:text="异常"
            android:textColor="#FF0000">
        </TextView>
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="30dp"
            android:text="未填"
            android:textColor="#FFFF00">
        </TextView>
        </LinearLayout>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/tv_zhengchang"
                android:textSize="30sp"
                android:gravity="center"
                android:textColor="#00FF00"
                android:layout_weight="1">
            </TextView>
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/tv_yichang"
                android:textSize="30sp"
                android:layout_weight="1"
                android:textColor="#FF0000"
                android:gravity="center">
            </TextView>
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/tv_weitian"
                android:textSize="30sp"
                android:gravity="center"
                android:layout_weight="1"
                android:textColor="#FFFF00">
            </TextView>
        </LinearLayout>
    </LinearLayout>
    </LinearLayout>
    </LinearLayout>
    <LinearLayout
        android:id="@+id/ll"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal">

        <Button
            android:id="@+id/bt"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="复位" />

        <Button
            android:id="@+id/button"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="卫星" />

        <Button
            android:id="@+id/buttons"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="普通" />
    </LinearLayout>

</RelativeLayout>