GPS不能获取用户位置

问题描述

我试图获取当前用户的位置（经度和纬度），但 onLocationChanged 方法不获取调用
但其他的方法，如公共无效onProviderDisabled（字符串提供商）。请帮帮忙，有什么可问题呢？
我有一个类：

 包com.java codegeeks.android.lbs;进口android.app.Activity;
进口android.os.Bundle; 进口android.app.Activity; 进口android.content.Context; 进口android.location.Location; 进口android.location.LocationListener; 进口android.location.LocationManager; 进口android.os.Bundle; 进口android.view.View; 进口android.view.View.OnClickListener; 进口android.widget.Button; 进口android.widget.Toast; 公共类LbsGeocodingActivity延伸活动{     私有静态最后长MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 1; //在米     私有静态最后长MINIMUM_TIME_BETWEEN_UPDATES = 1000; //（毫秒）     受保护的LocationManager的LocationManager;     保护按钮retrieveLocationButton;     @覆盖     公共无效的onCreate（捆绑savedInstanceState）{
     super.onCreate（savedInstanceState）;     的setContentView（R.layout.main）;     retrieveLocationButton =（按钮）findViewById（R.id.retrieve_location_button）;     的LocationManager =（的LocationManager）getSystemService（Context.LOCATION_SERVICE）;     locationManager.requestLocationUpdates（             LocationManager.GPS_PROVIDER，             MINIMUM_TIME_BETWEEN_UPDATES，             MINIMUM_DISTANCE_CHANGE_FOR_UPDATES，             新MyLocationListener（）     ）; retrieveLocationButton.setOnClickListener（新OnClickListener（）{         @覆盖         公共无效的onClick（视图v）{             showCurrentLocation（）;         } }）; } 保护无效showCurrentLocation（）{     地点= locationManager.getLastKnownLocation（LocationManager.GPS_PROVIDER）;     如果（位置！= NULL）{         字符串消息=的String.format（                 当前位置\\ n经度：％1 $ S \\北纬：％2 $ S                 location.getLongitude（），location.getLatitude（）         ）;         Toast.makeText（LbsGeocodingActivity.this，消息，                 Toast.LENGTH_LONG）.show（）;     } } 私有类MyLocationListener实现LocationListener的{     公共无效onLocationChanged（地点）{         字符串消息=的String.format（                 新位置\\ n经度：％1 $ S \\北纬：％2 $ S                 location.getLongitude（），location.getLatitude（）         ）;         Toast.makeText（LbsGeocodingActivity.this，消息，Toast.LENGTH_LONG）.show（）;     }     公共无效onStatusChanged（字符串s INT I，叠B）{         Toast.makeText（LbsGeocodingActivity.this，供应商的地位变化，                 Toast.LENGTH_LONG）.show（）;     }     公共无效onProviderDisabled（String s）将{
         Toast.makeText（LbsGeocodingActivity.this，                 用户。GPS禁用提供商关闭，                 Toast.LENGTH_LONG）.show（）;     }     公共无效onProviderEnabled（String s）将{         Toast.makeText（LbsGeocodingActivity.this，                 由用户。启用GPS提供商接通，                 Toast.LENGTH_LONG）.show（）;     }
 }
 }
 

解决方案

只是扩展了GpsStatus.Listener您的活动。
像如下：
ublic类MyActivity实现LocationListener的，
        GpsStatus.Listener

和检查您的权限：
  
    
     
    
    
    
    

I am trying to get the current user location (latitude and longitude ) but onLocationChanged method is not getting calledbut other methods like public void onProviderDisabled(String provider). Please help, what can be the problem ?I have a class:

package com.javacodegeeks.android.lbs;

import android.app.Activity;
import android.os.Bundle;

 import android.app.Activity;

 import android.content.Context;

 import android.location.Location;

 import android.location.LocationListener;

 import android.location.LocationManager;

 import android.os.Bundle;

 import android.view.View;

 import android.view.View.OnClickListener;

 import android.widget.Button;

 import android.widget.Toast;



 public class LbsGeocodingActivity extends Activity {



     private static final long MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 1; // in Meters

     private static final long MINIMUM_TIME_BETWEEN_UPDATES = 1000; // in Milliseconds



     protected LocationManager locationManager;



     protected Button retrieveLocationButton;



     @Override

     public void onCreate(Bundle savedInstanceState) {




     super.onCreate(savedInstanceState);

     setContentView(R.layout.main);



     retrieveLocationButton = (Button) findViewById(R.id.retrieve_location_button);



     locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);



     locationManager.requestLocationUpdates(

             LocationManager.GPS_PROVIDER,

             MINIMUM_TIME_BETWEEN_UPDATES,

             MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,

             new MyLocationListener()

     );



 retrieveLocationButton.setOnClickListener(new OnClickListener() {

         @Override

         public void onClick(View v) {

             showCurrentLocation();

         }

 });



 }



 protected void showCurrentLocation() {



     Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);



     if (location != null) {

         String message = String.format(

                 "Current Location \n Longitude: %1$s \n Latitude: %2$s",

                 location.getLongitude(), location.getLatitude()

         );

         Toast.makeText(LbsGeocodingActivity.this, message,

                 Toast.LENGTH_LONG).show();

     }



 }



 private class MyLocationListener implements LocationListener {



     public void onLocationChanged(Location location) {

         String message = String.format(

                 "New Location \n Longitude: %1$s \n Latitude: %2$s",

                 location.getLongitude(), location.getLatitude()

         );

         Toast.makeText(LbsGeocodingActivity.this, message, Toast.LENGTH_LONG).show();

     }



     public void onStatusChanged(String s, int i, Bundle b) {

         Toast.makeText(LbsGeocodingActivity.this, "Provider status changed",

                 Toast.LENGTH_LONG).show();

     }



     public void onProviderDisabled(String s) {
         Toast.makeText(LbsGeocodingActivity.this,

                 "Provider disabled by the user. GPS turned off",

                 Toast.LENGTH_LONG).show();

     }



     public void onProviderEnabled(String s) {

         Toast.makeText(LbsGeocodingActivity.this,

                 "Provider enabled by the user. GPS turned on",

                 Toast.LENGTH_LONG).show();

     }
 }
 }

解决方案

Just extends the GpsStatus.Listener in your activity.like as following:ublic class MyActivity implements LocationListener, GpsStatus.Listener

and check your permission:

这篇关于GPS不能获取用户位置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！