完整项目介绍看这里:安卓项目SimpleQQ概述,可下载源码。
首先高德地图开发者中心注册账号,并下载相应的jar包
在AndroidManifest.xml中注册高德Key使用的SHA1值
<meta-data android:name="com.amap.api.v2.apikey" android:value="03e9443c565a1****************">//开发者申请的key
meta-data>
<service android:name="com.amap.api.location.APSService"/>
显示地图:activity_map.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
tools:context=".utils.MapActivity"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.amap.api.maps2d.MapView
android:id="@+id/map"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
RelativeLayout>
MapActivity
package com.example.yangenneng0.myapplication.utils;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
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.maps2d.*;
import com.amap.api.maps2d.model.LatLng;
import com.amap.api.maps2d.model.MarkerOptions;
import com.amap.api.maps2d.model.MyLocationStyle;
import com.example.yangenneng0.myapplication.R;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* User: yangenneng
* DateTime: 2016/12/11 10:08
* Description:
* 由于SDK并没有提供用于管理地图生命周期的Activity,因此需要用户继承Activity后管理地图的生命周期,防止内存泄露
*/
//监听定位和定位变化
public class MapActivity extends AppCompatActivity implements LocationSource, AMapLocationListener {
//显示地图需要的变量
AMap aMap= null;
MapView mMapView = null;
//定位需要的声明
private AMapLocationClient mLocationClient = null; //定位发起端
private AMapLocationClientOption mLocationOption = null; //定位参数
private OnLocationChangedListener mListener = null; //定位监听器
//标识,用于判断是否只显示一次定位信息和用户重新定位
private boolean isFirstLoc = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
//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),实现地图生命周期管理
mMapView.onCreate(savedInstanceState);
if(aMap==null){
aMap = mMapView.getMap();//由MapView实例化AMap //初始化地图变量
}
UiSettings settings = aMap.getUiSettings(); //设置显示定位按钮 并且可以点击
aMap.setLocationSource(this); //设置定位监听
settings.setMyLocationButtonEnabled(true); // 是否显示定位按钮
aMap.setMyLocationEnabled(true); // 是否可触发定位并显示定位层
//定位的小图标 默认是蓝点
MyLocationStyle myLocationStyle = new MyLocationStyle();
myLocationStyle.radiusFillColor(android.R.color.transparent);
myLocationStyle.strokeColor(android.R.color.transparent);
aMap.setMyLocationStyle(myLocationStyle);
//开始定位
initLoc();
}
//定位
private void initLoc() {
mLocationClient = new AMapLocationClient(getApplicationContext()); //初始化定位
mLocationClient.setLocationListener(this); //设置定位回调监听
mLocationOption = new AMapLocationClientOption(); //初始化定位参数
//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);
mLocationOption.setNeedAddress(true); //设置是否返回地址信息(默认返回地址信息)
mLocationOption.setOnceLocation(false); //设置是否只定位一次,默认为false
mLocationOption.setWifiActiveScan(true); //设置是否强制刷新WIFI,默认为强制刷新
mLocationOption.setMockEnable(false); //设置是否允许模拟位置,默认为false,不允许模拟位置
mLocationOption.setInterval(2000); //设置定位间隔,单位毫秒,默认为2000ms
mLocationClient.setLocationOption(mLocationOption); //给定位客户端对象设置定位参数
mLocationClient.startLocation(); //启动定位
}
@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
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
//在activity执行onSaveInstanceState时执行mMapView.onSaveInstanceState (outState),实现地图生命周期管理
mMapView.onSaveInstanceState(outState);
}
@Override
public void onLocationChanged(AMapLocation amapLocation) {
if (amapLocation != null) {
if ( 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,详见官方定位类型表
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
amapLocation.getAddress(); //地址,如果option中设置isNeedAddress为false,则没有此结果,网络定位结果中会有地址信息,GPS定位不返回地址信息。
amapLocation.getCountry(); //国家信息
amapLocation.getProvince(); //省信息
amapLocation.getCity(); //城市信息
amapLocation.getDistrict(); //城区信息
amapLocation.getStreet(); //街道信息
amapLocation.getStreetNum(); //街道门牌号信息
amapLocation.getCityCode(); //城市编码
amapLocation.getAdCode(); //地区编码
// 如果不设置标志位,此时再拖动地图时,它会不断将地图移动到当前的位置
if ( isFirstLoc ) {
//设置缩放级别
aMap.moveCamera(CameraUpdateFactory.zoomTo(17));
//将地图移动到定位点
aMap.moveCamera(CameraUpdateFactory.changeLatLng(new LatLng(amapLocation.getLatitude(), amapLocation.getLongitude())));
//点击定位按钮 能够将地图的中心移动到定位点
mListener.onLocationChanged(amapLocation);
//添加图钉
aMap.addMarker(getMarkerOptions(amapLocation));
//获取定位信息
StringBuffer buffer = new StringBuffer();
buffer.append(amapLocation.getCountry() + "" + amapLocation.getProvince() + "" + amapLocation.getCity() + "" + amapLocation.getProvince() + "" + amapLocation.getDistrict() + "" + amapLocation.getStreet() + "" + amapLocation.getStreetNum());
Toast.makeText(getApplicationContext(), buffer.toString(), Toast.LENGTH_LONG).show();
isFirstLoc = false;
}
} else {
//显示错误信息ErrCode是错误码,errInfo是错误信息,详见错误码表。
Log.e("AmapError", "location Error, ErrCode:"
+ amapLocation.getErrorCode() + ", errInfo:"
+ amapLocation.getErrorInfo());
Toast.makeText(getApplicationContext(), "定位失败", Toast.LENGTH_LONG).show();
}
}
}
//自定义一个图钉,并且设置图标,当我们点击图钉时,显示设置的信息
private MarkerOptions getMarkerOptions(AMapLocation amapLocation) {
MarkerOptions options = new MarkerOptions(); //设置图钉选项
options.position(new LatLng(amapLocation.getLatitude(), amapLocation.getLongitude()));//位置
StringBuffer buffer = new StringBuffer();
buffer.append(amapLocation.getCountry() + "" + amapLocation.getProvince() + "" + amapLocation.getCity() + "" + amapLocation.getDistrict() + "" + amapLocation.getStreet() + "" + amapLocation.getStreetNum());
options.title(buffer.toString()); //标题
options.snippet("我在这里"); //子标题
options.period(60); //设置多少帧刷新一次图片资源
return options;
}
//激活定位
@Override
public void activate(OnLocationChangedListener onLocationChangedListener) {
mListener = onLocationChangedListener;
}
//停止定位
@Override
public void deactivate() {
mListener = null;
}
}