Android調(diào)用高德地圖定位的方法

2019-10-22 18:15:38

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供稿：網(wǎng)友

在App中使用地圖定位十分常見，購(gòu)物功能的可以直接定位當(dāng)前位置，發(fā)動(dòng)態(tài)功能可以定位當(dāng)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android/243970.html">高德地圖定位當(dāng)前位置并顯示地址和經(jīng)緯度。

github代碼傳送門

先上效果圖：

Android,高德地圖定位,高德定位,高德地圖

實(shí)現(xiàn)步驟：

1. 創(chuàng)建應(yīng)用獲取key：

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

Android,高德地圖定位,高德定位,高德地圖

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(guò)控制臺(tái)獲取調(diào)試版的：

進(jìn)入.android目錄

cd .android

輸入命令獲取

keytool -v -list -keystore debug.keystore

過(guò)程截圖：

Android,高德地圖定位,高德定位,高德地圖

創(chuàng)建完成獲取Key：

Android,高德地圖定位,高德定位,高德地圖

2. 接入SDK

添加定位庫(kù)

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

添加2D地圖庫(kù)

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(shí)現(xiàn)（帶每一步功能注釋）：

實(shí)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(dòng)定位；在定位回調(diào)中獲取經(jīng)緯度，在將地圖移動(dòng)到定位位置，在該經(jīng)緯度上添加覆蓋圖標(biāo)。詳細(xì)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(jí)別    aMap.moveCamera(CameraUpdateFactory.zoomTo(15));    //顯示定位層并可觸發(fā)，默認(rèn)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(dòng)到定位位置        aMap.moveCamera(CameraUpdateFactory.changeLatLng(new LatLng(lat,lgt)));        mListener.onLocationChanged(aMapLocation);        //添加定位圖標(biāo)        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(qiáng)制刷新WIFI，默認(rèn)為強(qiáng)制刷新    clientOption.setWifiActiveScan(true);    //設(shè)置是否允許模擬位置,默認(rèn)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(cuò)誤信息ErrCode是錯(cuò)誤碼，errInfo是錯(cuò)誤信息，詳見錯(cuò)誤碼表。        Log.e("AmapError", "location Error, ErrCode:"            + aMapLocation.getErrorCode() + ", errInfo:"            + aMapLocation.getErrorInfo());      }    }  }  /**   * 自定義圖標(biāo)   * @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(cuò)誤情況檢查：

Key是否配置錯(cuò)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(cuò)
aMap.setMyLocationEnabled(true)設(shè)置顯示定位層并可觸發(fā)
手機(jī)是否開啟定位

好了，調(diào)用地圖的基本功能完成，更高級(jí)的功能還包括Poi檢索，附近搜索，路線規(guī)劃，后續(xù)會(huì)繼續(xù)完善該功能。以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持VEVB武林網(wǎng)。

注：相關(guān)教程知識(shí)閱讀請(qǐng)移步到Android開發(fā)頻道。

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