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;
AMa
4000
p 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
a4ad
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;
}
}
}