Android手機智慧定位並在地圖上顯示地址
阿新 • • 發佈：2019-02-18
最近做的專案用到了GPS、Wifi、基站三種不同方式進行定位，研究一下發現高德地圖提供的智慧選擇定位方式進行定位較好，就寫了下面相關程式碼進行定位並在地圖上顯示。有些寫的不詳細，大家可以去參考官方文件。
1.java程式碼：MyActivity
package com.gu.ALocationByGD; import android.app.Activity; import android.content.Intent; import android.location.Location; import android.os.Bundle; import android.view.View; import com.amap.api.location.AMapLocation; import com.amap.api.location.AMapLocationListener; import com.amap.api.location.LocationManagerProxy; import com.amap.api.location.LocationProviderProxy; /** * 本例項採用高德的智慧定位包進行的智慧選擇定位方式進行定位，wifi網路、周圍基站以及gps */ public class MyActivity extends Activity { /** * Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); findViewById(R.id.location).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //開始定位 initLocation(); } }); } //定位管理服務 private LocationManagerProxy mLocationManagerProxy; //停止定位，在定位完不需要再次定位是關閉定位服務，釋放資源 private void stopLocation() { if (mLocationManagerProxy != null) { mLocationManagerProxy.removeUpdates(amapLocationListener); mLocationManagerProxy.destory(); } mLocationManagerProxy = null; } //初始化定位 private void initLocation() { mLocationManagerProxy = LocationManagerProxy.getInstance(this); //此方法為每隔固定時間會發起一次定位請求，為了減少電量消耗或網路流量消耗， //注意設定合適的定位時間的間隔，並且在合適時間呼叫removeUpdates()方法來取消定位請求 //在定位結束後，在合適的生命週期呼叫destroy()方法 //其中如果間隔時間為-1，則定位只定一次 mLocationManagerProxy.requestLocationUpdates(LocationProviderProxy.AMapNetwork, -1, 1, amapLocationListener); mLocationManagerProxy.setGpsEnable(false); } //定位監聽 private AMapLocationListener amapLocationListener = new AMapLocationListener() { @Override public void onLocationChanged(AMapLocation aMapLocation) { if (aMapLocation != null) { saveDisconnectLocation(aMapLocation); } } @Override public void onLocationChanged(Location location) { } @Override public void onStatusChanged(String provider, int status, Bundle extras) { } @Override public void onProviderEnabled(String provider) { } @Override public void onProviderDisabled(String provider) { } }; double lat, lon; //儲存定位到的座標位置，並跳轉到地圖介面進行定位 private void saveDisconnectLocation(AMapLocation amaplocation) { lon = amaplocation.getLongitude(); lat = amaplocation.getLatitude(); // disconnect record if (lon != 0 && lat != 0) { stopLocation(); Intent intent = new Intent(); intent.setClass(MyActivity.this, MapActivity.class); intent.putExtra("lat", lat); intent.putExtra("lon", lon); startActivity(intent); finish(); } } }
相應xml程式碼：
2.java程式碼：MapActivity<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="自動選擇gps、wifi、基站定位" android:textColor="#ff00ff" android:layout_centerHorizontal="true" android:layout_marginTop="30dp" /> <Button android:id="@+id/location" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Location" android:textColor="#ff00ff" android:padding="10dp" android:layout_centerInParent="true" /> </RelativeLayout>
package com.gu.ALocationByGD; import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.Window; import android.widget.Toast; import com.amap.api.maps2d.AMap; import com.amap.api.maps2d.CameraUpdateFactory; import com.amap.api.maps2d.MapView; import com.amap.api.maps2d.model.BitmapDescriptorFactory; import com.amap.api.maps2d.model.LatLng; import com.amap.api.maps2d.model.Marker; import com.amap.api.maps2d.model.MarkerOptions; import com.amap.api.services.core.LatLonPoint; import com.amap.api.services.geocoder.GeocodeResult; import com.amap.api.services.geocoder.GeocodeSearch; import com.amap.api.services.geocoder.RegeocodeQuery; import com.amap.api.services.geocoder.RegeocodeResult; import java.text.SimpleDateFormat; /** * Todo：地圖顯示定位資訊 * * @author moxiang * @version V1.0 * @data 2014/10/14 */ public class MapActivity extends Activity implements Runnable, AMap.OnMarkerDragListener, AMap.OnMapLoadedListener, AMap.OnMarkerClickListener, AMap.OnInfoWindowClickListener, AMap.InfoWindowAdapter, GeocodeSearch.OnGeocodeSearchListener { private static final String TAG = MapActivity.class.getSimpleName(); protected LatLonPoint mLatLonPoint = null; private double latitude; private double longitude; private MapView mapView; private AMap mAMap; private String addressName; private GeocodeSearch geocodeSearch; private ProgressDialog progDialog = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.map_layout); mapView = (MapView) findViewById(R.id.map); mapView.onCreate(savedInstanceState); init(); Intent intent = getIntent(); latitude = intent.getDoubleExtra("lat", 0); longitude = intent.getDoubleExtra("lon", 0); Log.e(TAG, "lat: " + latitude + " lon: " + longitude); if (latitude != 0 && longitude != 0) { mLatLonPoint = new LatLonPoint(latitude, longitude); getAddressByLatLng(mLatLonPoint); } } private void init() { if (mAMap == null) { mAMap = mapView.getMap(); geocodeSearch = new GeocodeSearch(this); geocodeSearch.setOnGeocodeSearchListener(this); setUpMap(); progDialog = new ProgressDialog(this); } } private void setUpMap() { mAMap.setOnMarkerDragListener(this); mAMap.setOnMapLoadedListener(this); mAMap.setOnMarkerClickListener(this); mAMap.setOnInfoWindowClickListener(this); mAMap.setInfoWindowAdapter(this); } // 根據經緯度獲取地址 public void getAddressByLatLng(final LatLonPoint latLngPoint) { showDialog(); RegeocodeQuery query = new RegeocodeQuery(latLngPoint, 200, GeocodeSearch.AMAP); geocodeSearch.getFromLocationAsyn(query); } public void showDialog() { progDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); progDialog.setIndeterminate(false); progDialog.setCancelable(true); progDialog.setMessage(getString(R.string.map_loading)); progDialog.show(); } @Override protected void onStart() { super.onStart(); } @Override protected void onResume() { super.onResume(); mapView.onResume(); } @Override protected void onPause() { super.onPause(); mapView.onPause(); } @Override protected void onStop() { super.onStop(); } @Override protected void onDestroy() { super.onDestroy(); mapView.onDestroy(); } @Override public View getInfoWindow(Marker marker) { return null; } @Override public View getInfoContents(Marker marker) { return null; } @Override public void onInfoWindowClick(Marker marker) { } @Override public void onMapLoaded() { } @Override public boolean onMarkerClick(Marker marker) { return false; } @Override public void onMarkerDragStart(Marker marker) { } @Override public void onMarkerDrag(Marker marker) { } @Override public void onMarkerDragEnd(Marker marker) { } @Override public void run() { } @Override public void onRegeocodeSearched(RegeocodeResult result, int rCode) { dismissDialog(); if (rCode == 0) { if (result != null && result.getRegeocodeAddress() != null && result.getRegeocodeAddress().getFormatAddress() != null) { addressName = result.getRegeocodeAddress().getFormatAddress() + "\n " + getDate() + " " + getTime(); addPositionAnnotation(latitude, longitude, addressName); } } else { Toast.makeText(this, getString(R.string.map_neterr), Toast.LENGTH_SHORT).show(); } } //獲取系統日期 public String getDate() { SimpleDateFormat sDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return sDateFormat.format(new java.util.Date()); } //獲取系統時間 public String getTime() { SimpleDateFormat sDateFormat = new SimpleDateFormat("hh:mm:ss"); return sDateFormat.format(new java.util.Date()); } @Override public void onGeocodeSearched(GeocodeResult geocodeResult, int i) { } public void addPositionAnnotation(double latitude, double longitude, String address) { /* *第一個引數是包含經緯度的物件 * 第二個引數是地圖的放大倍數 */ mAMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 16)); //地址標註 Marker marker = mAMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f) .position(new LatLng(latitude, longitude))//地圖上的位置 .title(address)//要顯示的內容 .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)) .draggable(false)); marker.showInfoWindow(); } public void dismissDialog() { if (progDialog != null) { progDialog.dismiss(); } } }
相應xml程式碼：
<?xml version="1.0" encoding="utf-8"?>
<com.amap.api.maps2d.MapView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent" />3.manifest配置：
<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" /> <meta-data
android:name="com.amap.api.v2.apikey"
android:value="key值" />顯示效果如下：
轉載註明出處