獲取經緯度&根據經緯度獲取地理位置
阿新 • • 發佈：2018-11-19
package com.example.ceshi; import android.Manifest; import android.content.Context; import android.content.pm.PackageManager; import android.location.Address; import android.location.Geocoder; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Build; import android.os.Bundle; import android.support.v4.app.ActivityCompat; import android.util.Log; import java.io.IOException; import java.util.List; import java.util.Locale; /** * Created by ${dql} on 2018/8/10 0010. */ public class LocationUtils { private final String TAG = "LocationUtils"; private volatile static LocationUtils uniqueInstance; private LocationManager locationManager; private String locationProvider; private Location location; private Context mContext; private LocationUtils(Context context) { mContext = context; getLocation(); } //採用Double CheckLock(DCL)實現單例 public static LocationUtils getInstance(Context context) { if (uniqueInstance == null) { synchronized (LocationUtils.class) { if (uniqueInstance == null) { uniqueInstance = new LocationUtils(context); } } } return uniqueInstance; } private void getLocation() { //1.獲取位置管理器 locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE); //2.獲取位置提供器，GPS或是NetWork List<String> providers = locationManager.getProviders(true); if (providers.contains(LocationManager.NETWORK_PROVIDER)) { //如果是網路定位 Log.d(TAG, "如果是網路定位"); locationProvider = LocationManager.NETWORK_PROVIDER; } else if (providers.contains(LocationManager.GPS_PROVIDER)) { //如果是GPS定位 Log.d(TAG, "如果是GPS定位"); locationProvider = LocationManager.GPS_PROVIDER; } else { Log.d(TAG, "沒有可用的位置提供器"); return; } // 需要檢查許可權,否則編譯報錯,想抽取成方法都不行,還是會報錯。只能這樣重複 code 了。 if (Build.VERSION.SDK_INT >= 23 && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { return; } if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { return; } //3.獲取上次的位置，一般第一次執行，此值為null Location location = locationManager.getLastKnownLocation(locationProvider); if (location != null) { setLocation(location); } // 監視地理位置變化，第二個和第三個引數分別為更新的最短時間minTime和最短距離minDistace locationManager.requestLocationUpdates(locationProvider, 0, 0, locationListener); } private void setLocation(Location location) { this.location = location; String address = "緯度：" + location.getLatitude() + "經度：" + location.getLongitude(); Log.d(TAG, address); } //獲取經緯度 public Location showLocation() { return location; } // 移除定位監聽 public void removeLocationUpdatesListener() { // 需要檢查許可權,否則編譯不過 if (Build.VERSION.SDK_INT >= 23 && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { return; } if (locationManager != null) { uniqueInstance = null; locationManager.removeUpdates(locationListener); } } /** * LocationListern監聽器 * 引數：地理位置提供器、監聽位置變化的時間間隔、位置變化的距離間隔、LocationListener監聽器 */ LocationListener locationListener = new LocationListener() { /** * 當某個位置提供者的狀態發生改變時 */ @Override public void onStatusChanged(String provider, int status, Bundle arg2) { } /** * 某個裝置開啟時 */ @Override public void onProviderEnabled(String provider) { } /** * 某個裝置關閉時 */ @Override public void onProviderDisabled(String provider) { } /** * 手機位置發生變動 */ @Override public void onLocationChanged(Location location) { location.getAccuracy();//精確度 setLocation(location); } }; /** * 根據經緯度獲取地理位置 * */ public String convertAddress(Context context, double latitude, double longitude) { Geocoder mGeocoder = new Geocoder(context, Locale.getDefault()); StringBuilder mStringBuilder = new StringBuilder(); try { List<Address> mAddresses = mGeocoder.getFromLocation(latitude, longitude, 1); if (!mAddresses.isEmpty()) { Address address = mAddresses.get(0); mStringBuilder.append(address.getCountryName()).append(", ").append(address.getAdminArea()).append(", ").append(address.getLocality()); } } catch (IOException e) { e.printStackTrace(); } return mStringBuilder.toString(); } private boolean checkPermission(Context context, permission permName) { int perm = context.checkCallingOrSelfPermission("android.permission."+permName.toString()); return perm == PackageManager.PERMISSION_GRANTED; } private enum permission{ ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION } }
呼叫方式：
//獲取經緯度 Location location = LocationUtils.getInstance(getApplicationContext()).showLocation(); if (location != null) { String latitude = String.valueOf(location.getLatitude()); String longitde = String.valueOf(location.getLongitude()); Log.e("經度==========",latitude); Log.e("緯度==========",longitde); //根據經緯度獲取地理位置 String s = LocationUtils.getInstance(MainActivity.this).convertAddress(MainActivity.this, location.getLatitude(), location.getLongitude()); mTv.setText("經度=========="+latitude+"\n"+"緯度=========="+longitde+"\n"+s);
需要新增的許可權（六點零以上的系統需要動態獲取）
Manifest.permission.INTERNET
Manifest.permission.ACCESS_COARSE_LOCATION
Manifest.permission.ACCESS_FINE_LOCATION