Android調(diào)用高德地圖定位的方法

更新時間：2018年02月06日 16:30:55 作者：翻滾吧李博

本篇文章主要介紹了Android調(diào)用高德地圖定位的方法，小編覺得挺不錯的，現(xiàn)在分享給大家，也給大家做個參考。一起跟隨小編過來看看吧

在App中使用地圖定位十分常見，購物功能的可以直接定位當前位置，發(fā)動態(tài)功能可以定位當前位置發(fā)出，社交功能可以定位周邊用戶等等。這里我使用高德地圖定位當前位置并顯示地址和經(jīng)緯度。

github代碼傳送門

先上效果圖：

實現(xiàn)步驟：

1. 創(chuàng)建應(yīng)用獲取key：

接入第三方無一例外，去高德地圖官網(wǎng)注冊賬號并創(chuàng)建應(yīng)用。填入包名和keystore的Sha1。

創(chuàng)建應(yīng)用

獲取Sha1，輸入命令keytool -v -list -keystore keystore文件路徑，我在這里通過控制臺獲取調(diào)試版的：

進入.android目錄

cd .android

輸入命令獲取

keytool -v -list -keystore debug.keystore

過程截圖：

創(chuàng)建完成獲取Key：

2. 接入SDK

添加定位庫

compile 'com.amap.api:location:latest.integration'

添加2D地圖庫

compile 'com.amap.api:map2d:latest.integration'

添加地圖權(quán)限：

 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 <uses-permission android:name="android.permission.READ_PHONE_STATE" />
 <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
 <uses-permission android:name="android.permission.CHANGE_CONFIGURATION" />
 <uses-permission android:name="android.permission.WAKE_LOCK" />
 <uses-permission android:name="android.permission.WRITE_SETTINGS" />

在<application></application>中設(shè)置地圖key

  <meta-data
   android:name="com.amap.api.v2.apikey"
   android:value="57b811b21061501ee320e171568f0dac" />

3. 代碼實現(xiàn)（帶每一步功能注釋）：

實現(xiàn)思路：創(chuàng)建MapView顯示地圖；設(shè)置定位定位監(jiān)聽，設(shè)置定位參數(shù)，在activate激活后啟動定位；在定位回調(diào)中獲取經(jīng)緯度，在將地圖移動到定位位置，在該經(jīng)緯度上添加覆蓋圖標。詳細代碼如下：

地圖控件：

  <com.amap.api.maps2d.MapView
    android:id="@+id/mapview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

定位類AmapActivity完整代碼：

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.amap.api.location.AMapLocation;
import com.amap.api.maps2d.AMap;
import com.amap.api.maps2d.CameraUpdateFactory;
import com.amap.api.maps2d.LocationSource;
import com.amap.api.maps2d.MapView;
import com.amap.api.maps2d.model.LatLng;

public class AmapActivity extends AppCompatActivity implements LocationSource {
  private MapView mapView;
  private AMap aMap;
  private LocationSource.OnLocationChangedListener mListener = null;//定位監(jiān)聽器
  private LocationUtil locationUtil;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_amap);

    mapView = (MapView) findViewById(R.id.mapview);
    mapView.onCreate(savedInstanceState);

    init();
  }

  private void init() {
    if(aMap == null){
      aMap = mapView.getMap();
    }

    setLocationCallBack();

    //設(shè)置定位監(jiān)聽
    aMap.setLocationSource(this);
    //設(shè)置縮放級別
    aMap.moveCamera(CameraUpdateFactory.zoomTo(15));
    //顯示定位層并可觸發(fā)，默認false
    aMap.setMyLocationEnabled(true);
  }

  private void setLocationCallBack(){
    locationUtil = new LocationUtil();
    locationUtil.setLocationCallBack(new LocationUtil.ILocationCallBack() {
      @Override
      public void callBack(String str,double lat,double lgt,AMapLocation aMapLocation) {

        //根據(jù)獲取的經(jīng)緯度，將地圖移動到定位位置
        aMap.moveCamera(CameraUpdateFactory.changeLatLng(new LatLng(lat,lgt)));
        mListener.onLocationChanged(aMapLocation);
        //添加定位圖標
        aMap.addMarker(locationUtil.getMarkerOption(str,lat,lgt));
      }
    });
  }

  //定位激活回調(diào)
  @Override
  public void activate(OnLocationChangedListener onLocationChangedListener) {
    mListener = onLocationChangedListener;

    locationUtil.startLocate(getApplicationContext());
  }

  @Override
  public void deactivate() {
    mListener = null;
  }

  @Override
  protected void onPause() {
    super.onPause();
    //暫停地圖的繪制
    mapView.onPause();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    //銷毀地圖
    mapView.onDestroy();
  }

  @Override
  protected void onResume() {
    super.onResume();
    //重新繪制加載地圖
    mapView.onResume();
  }

  @Override
  public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    mapView.onSaveInstanceState(outState);
  }
}

定位參數(shù)設(shè)置和定位回調(diào)LocationUtil類完整代碼：

import android.content.Context;
import android.util.Log;
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.model.BitmapDescriptorFactory;
import com.amap.api.maps2d.model.LatLng;
import com.amap.api.maps2d.model.MarkerOptions;

/**
 * Created by libo on 2018/2/2.
 */

public class LocationUtil implements AMapLocationListener {
  private AMapLocationClient aMapLocationClient;
  private AMapLocationClientOption clientOption;
  private ILocationCallBack callBack;

  public void startLocate(Context context){
    aMapLocationClient = new AMapLocationClient(context);

    //設(shè)置監(jiān)聽回調(diào)
    aMapLocationClient.setLocationListener(this);

    //初始化定位參數(shù)
    clientOption = new AMapLocationClientOption();
    clientOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Battery_Saving);
    clientOption.setNeedAddress(true);
    clientOption.setOnceLocation(false);
    //設(shè)置是否強制刷新WIFI，默認為強制刷新
    clientOption.setWifiActiveScan(true);
    //設(shè)置是否允許模擬位置,默認為false，不允許模擬位置
    clientOption.setMockEnable(false);
    //設(shè)置定位間隔
    clientOption.setInterval(2000);
    aMapLocationClient.setLocationOption(clientOption);

    aMapLocationClient.startLocation();
  }

  //完成定位回調(diào)
  @Override
  public void onLocationChanged(AMapLocation aMapLocation) {
    if(aMapLocation != null){
      if(aMapLocation.getErrorCode() == 0){
        //定位成功完成回調(diào)
        String country = aMapLocation.getCountry();
        String province = aMapLocation.getProvince();
        String city = aMapLocation.getCity();
        String district = aMapLocation.getDistrict();
        String street = aMapLocation.getStreet();
        double lat = aMapLocation.getLatitude();
        double lgt = aMapLocation.getLongitude();

        callBack.callBack(country + province + city + district + street,lat,lgt,aMapLocation);
      }else{
        //顯示錯誤信息ErrCode是錯誤碼，errInfo是錯誤信息，詳見錯誤碼表。
        Log.e("AmapError", "location Error, ErrCode:"
            + aMapLocation.getErrorCode() + ", errInfo:"
            + aMapLocation.getErrorInfo());
      }
    }
  }

  /**
   * 自定義圖標
   * @return
   */
  public MarkerOptions getMarkerOption(String str,double lat,double lgt){
    MarkerOptions markerOptions = new MarkerOptions();
    markerOptions.icon(BitmapDescriptorFactory.fromResource(R.mipmap.position));
    markerOptions.position(new LatLng(lat,lgt));
    markerOptions.title(str);
    markerOptions.snippet("緯度:" + lat + "  經(jīng)度:" + lgt);
    markerOptions.period(100);

    return markerOptions;
  }

  public interface ILocationCallBack{
    void callBack(String str,double lat,double lgt,AMapLocation aMapLocation);
  }

  public void setLocationCallBack(ILocationCallBack callBack){
    this.callBack = callBack;
  }

}

錯誤情況檢查：

Key是否配置錯誤
在onCreate中調(diào)用mapView.onCreate(savedInstanceState);
mapView.onPause()、mapView.onDestroy()、mapView.onResume()、mapView.onSaveInstanceState(outState)是否都已調(diào)用且不寫錯
aMap.setMyLocationEnabled(true)設(shè)置顯示定位層并可觸發(fā)
手機是否開啟定位

好了，調(diào)用地圖的基本功能完成，更高級的功能還包括Poi檢索，附近搜索，路線規(guī)劃，后續(xù)會繼續(xù)完善該功能。以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。

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