首先需要集成显示地图,可以参考上一篇:高德地图开发(一)详细配置步骤实现显示简单地图
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.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 java.text.SimpleDateFormat;
import java.util.Date;
public class MainActivity extends AppCompatActivity implements LocationSource, AMapLocationListener {
//AMap是地图对象
private AMap aMap;
private MapView mapView;
//声明AMapLocationClient类对象,定位发起端
private AMapLocationClient mLocationClient = null;
//声明mLocationOption对象,定位参数
public AMapLocationClientOption mLocationOption = null;
//声明mListener对象,定位监听器
private OnLocationChangedListener mListener = null;
//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_main);
//获取地图控件引用
mapView = (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
mapView.onCreate(savedInstanceState);
if (aMap == null) {
aMap = mapView.getMap();
//设置显示定位按钮 并且可以点击
UiSettings settings = aMap.getUiSettings();
aMap.setLocationSource(this);//设置了定位的监听
// 是否显示定位按钮
settings.setMyLocationButtonEnabled(true);
aMap.setMyLocationEnabled(true);//显示定位层并且可以触发定位,默认是flase
}
//开始定位
location();
}
private void location() {
//初始化定位
mLocationClient = new AMapLocationClient(getApplicationContext());
//设置定位回调监听
mLocationClient.setLocationListener(this);
//初始化定位参数
mLocationOption = new AMapLocationClientOption();
//设置定位模式为Hight_Accuracy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);
//设置是否返回地址信息(默认返回地址信息)
mLocationOption.setNeedAddress(true);
//设置是否只定位一次,默认为false
mLocationOption.setOnceLocation(false);
//设置是否强制刷新WIFI,默认为强制刷新
mLocationOption.setWifiActiveScan(true);
//设置是否允许模拟位置,默认为false,不允许模拟位置
mLocationOption.setMockEnable(false);
//设置定位间隔,单位毫秒,默认为2000ms
mLocationOption.setInterval(2000);
//给定位客户端对象设置定位参数
mLocationClient.setLocationOption(mLocationOption);
//启动定位
mLocationClient.startLocation();
}
@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
mapView.onDestroy();
mLocationClient.stopLocation();//停止定位
mLocationClient.onDestroy();//销毁定位客户端。
}
@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
mapView.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
mapView.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
mapView.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();
}
}
}
@Override
public void activate(OnLocationChangedListener onLocationChangedListener) {
mListener = onLocationChangedListener;
}
@Override
public void deactivate() {
mListener = null;
}
}
集成的时候老是提示缺少定位权限:location Error, ErrCode:12, errInfo:缺少定位权限 请到http://lbs.amap.com/api/android-location-sdk/guide/utilities/errorcode/查看错误码说明,错误详细信息:定位权限被禁用,请授予应用定位权限#1201,
是因为手机没有给定位权限,可以在手机权限管理里面手动开启