高德地图——加载当前位置 LBS获取自定义坐标

    高德地图    加载当前位置    LBS获取自定义坐标

package com.exam.aisan3;

import android.Manifest;
import android.annotation.TargetApi;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

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.CameraUpdateFactory;
import com.amap.api.maps.LocationSource;
import com.amap.api.maps.MapView;
import com.amap.api.maps.UiSettings;
import com.amap.api.maps.model.LatLng;
import com.amap.api.maps.model.MarkerOptions;
import com.amap.api.maps.model.MyLocationStyle;
import com.amap.api.services.cloud.CloudItem;
import com.amap.api.services.cloud.CloudItemDetail;
import com.amap.api.services.cloud.CloudResult;
import com.amap.api.services.cloud.CloudSearch;
import com.amap.api.services.core.LatLonPoint;

import java.util.List;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener, LocationSource, AMapLocationListener, CloudSearch.OnCloudSearchListener {
    MapView mMapView = null;

    MyLocationStyle myLocationStyle;
    AMap aMap;
    OnLocationChangedListener mListener;
    AMapLocationClient mlocationClient;
    AMapLocationClientOption mLocationOption;
    private static final int BAIDU_READ_PHONE_STATE =100;
    private CloudSearch mCloudSearch;
    private CloudSearch.Query mQuery;
    private AMapLocation amapLocation;
    private String mTableID;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //获取地图控件引用
        mMapView = (MapView) findViewById(R.id.map);
        //在activity执行onCreate时执行mMapView.onCreate(savedInstanceState)，创建地图
        mMapView.onCreate(savedInstanceState);


        //判断是否为android6.0系统版本，如果是，需要动态添加权限
        if (Build.VERSION.SDK_INT>=23){
            showContacts();
        }else{
            initMap();//init为定位方法
        }




        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "正在搜索附近的雨伞", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();

            }
        });

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();

        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
    }
    public void onCloudSearched(CloudResult cloudResult, int rCode){
        //数据展现
        List<CloudItem> CloudItem=cloudResult.getClouds();
        for(int i=0;i<cloudResult.getTotalCount();i++){
            LatLonPoint La=CloudItem.get(i).getLatLonPoint();
            LatLng latLng =new LatLng(La.getLatitude(),La.getLongitude());
            aMap.addMarker(new MarkerOptions().position(latLng).title("智能伞").snippet("Aisan"));

        }

    }

    @Override
    public void onCloudItemDetailSearched(CloudItemDetail cloudItemDetail, int i) {

    }

    private void initMap() {
        //初始化地图控制器对象
        if (aMap == null) {
            aMap = mMapView.getMap();
        }

        // 设置定位的比例尺
        aMap.moveCamera(CameraUpdateFactory.zoomTo(18));
        // 设置定位监听
        aMap.setLocationSource(this);
        // 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
        aMap.setMyLocationEnabled(true);
        // 设置定位的类型为定位模式，有定位、跟随或地图根据面向方向旋转几种
        aMap.setMyLocationType(AMap.MAP_TYPE_NORMAL);
        //设置缩放按钮的位置
        UiSettings uiSettings = aMap.getUiSettings();
        uiSettings.setZoomControlsEnabled(false);
        uiSettings.setMyLocationButtonEnabled(true); //显示默认的定位按钮

        //uiSettings.setZoomPosition(AMapOptions.ZOOM_POSITION_RIGHT_CENTER);
    }
    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_camera) {
            // Handle the camera action
        } else if (id == R.id.nav_gallery) {

        } else if (id == R.id.nav_slideshow) {

        } else if (id == R.id.nav_manage) {

        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }
    /**
     * 激活定位
     */
    @Override
    public void activate(OnLocationChangedListener listener) {
        mListener = listener;
        if (mlocationClient == null) {
            //初始化定位
            mlocationClient = new AMapLocationClient(this);
            //初始化定位参数
            mLocationOption = new AMapLocationClientOption();
            //设置定位回调监听
            mlocationClient.setLocationListener(this);
            //设置为高精度定位模式
            mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);
            //设置定位参数
            mlocationClient.setLocationOption(mLocationOption);
            // 此方法为每隔固定时间会发起一次定位请求，为了减少电量消耗或网络流量消耗，

            // 注意设置合适的定位时间的间隔（最小间隔支持为2000ms），并且在合适时间调用stopLocation()方法来取消定位请求
            mLocationOption.setInterval(5000);

            // 在定位结束后，在合适的生命周期调用onDestroy()方法
            // 在单次定位情况下，定位无论成功与否，都无需调用stopLocation()方法移除请求，定位sdk内部会移除
            mlocationClient.startLocation();//启动定位

        }
    }
    /**
     * 停止定位
     */
    @Override
    public void deactivate() {
        mListener = null;
        if (mlocationClient != null) {
            mlocationClient.stopLocation();
            mlocationClient.onDestroy();
        }
        mlocationClient = null;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //在activity执行onDestroy时执行mMapView.onDestroy()，销毁地图
        mMapView.onDestroy();
        if(null != mlocationClient){
            mlocationClient.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);
    }
    @TargetApi(Build.VERSION_CODES.N)
    @Override
    public void onLocationChanged(AMapLocation amapLocation) {
        if (mListener != null&&amapLocation != null) {
            if (amapLocation != null
                    &&amapLocation.getErrorCode() == 0) {
                //定位成功回调信息，设置相关消息
//                amapLocation.getLocationType();//获取当前定位结果来源，如网络定位结果，详见定位类型表
//                amapLocation.getLatitude();//获取纬度
//                amapLocation.getLongitude();//获取经度
//                amapLocation.getAccuracy();//获取精度信息
//                SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//                Date date = new Date(amapLocation.getTime());
//                df.format(date);//定位时间
                mListener.onLocationChanged(amapLocation);// 显示系统小蓝点
                mCloudSearch = new CloudSearch(this);// 初始化查询类
                mCloudSearch.setOnCloudSearchListener(this);// 设置回调函数
                // 设置中心点及检索范围
                CloudSearch.SearchBound bound = new CloudSearch.SearchBound(new LatLonPoint(
                        amapLocation.getLatitude(), amapLocation.getLongitude()), 4000);
                //设置查询条件 mTableID是将数据存储到数据管理台后获得。
                try {
                    mQuery = new CloudSearch.Query("590411757bbf197dd18f0059","中国计量大学现代科技学院-乾学教育", bound);
                } catch (com.amap.api.services.core.AMapException e) {
                    e.printStackTrace();
                }
                mCloudSearch.searchCloudAsyn(mQuery);// 异步搜索
            } else {
                String errText = "定位失败," + amapLocation.getErrorCode()+ ": " + amapLocation.getErrorInfo();
                Log.e("AmapErr",errText);
            }
        }
    }
    /*权限申请部分*/
    public void showContacts(){
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE)
                != PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(getApplicationContext(),"没有权限,请手动开启定位权限",Toast.LENGTH_SHORT).show();
            // 申请一个（或多个）权限，并提供用于回调返回的获取码（用户定义）
            ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.READ_PHONE_STATE}, BAIDU_READ_PHONE_STATE);
        }else{
            initMap();
        }
    }
    //Android6.0申请权限的回调方法
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            // requestCode即所声明的权限获取码，在checkSelfPermission时传入
            case BAIDU_READ_PHONE_STATE:
                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    // 获取到权限，作相应处理（调用定位SDK应当确保相关权限均被授权，否则可能引起定位失败）
                    initMap();
                } else {
                    // 没有获取到权限，做特殊处理
                    Toast.makeText(getApplicationContext(), "获取位置权限失败，请手动开启", Toast.LENGTH_SHORT).show();
                }
                break;
            default:
                break;
        }
    }
}