没有得到经纬度android中每1分钟后, [英] Not getting Latitude and longitude after every 1 minute in android
本文介绍了没有得到经纬度android中每1分钟后,的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想在这一个Android程序,我得到的纬度和经度在吐司各1分钟间隔后,人口土司甚至经过我的应用程序关闭。
我下面试过,但我只获得时间的纬度和经度,请告诉我,我应该怎么做它来获得持续纬度长toast.My code是如下:
GPStracker.java
包com.epe.trucktrackers;进口java.util.Timer中;
进口java.util.TimerTask中;进口utils.Const;
进口android.app.AlertDialog;
进口android.app.Service;
进口android.content.Context;
进口android.content.DialogInterface;
进口android.content.Intent;
进口android.content.Shared preferences;
进口android.location.Location;
进口android.location.LocationListener;
进口android.location.LocationManager;
进口android.os.Bundle;
进口android.os.IBinder;
进口android.provider.Settings;
进口android.util.Log;
进口android.widget.Toast;公共类GPSTracker扩展服务实现LocationListener的{ 私人最终上下文mContext; //标志GPS状态
布尔isGPSEnabled = FALSE; //标志网络状态
布尔isNetworkEnabled = FALSE;
//标志GPS状态
布尔canGetLocation = FALSE;
私人定时器定时器;
私人更新周期长;
公共静态最后弦乐存根= NULL;
的LocationManager mlocmag;
LocationListener的mlocList;
私人双重纬度,longn; 地点位置; // 位置
双纬度; //纬度
双经度; //经度 //最小距离改变米的更新
私有静态最后长MIN_DISTANCE_CHANGE_FOR_UPDATES = 5; //10米 //毫秒更新之间的最短时间
私有静态最后长MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1分钟 //声明一个位置管理
受保护的LocationManager的LocationManager; 公共GPSTracker(上下文的背景下){
this.mContext =背景;
的getLocation();
} 公共场所的getLocation(){
尝试{
的LocationManager =(的LocationManager)mContext
.getSystemService(LOCATION_SERVICE); //获取GPS状态
isGPSEnabled =的LocationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER); //获取网络状态
isNetworkEnabled =的LocationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER); 如果(isGPSEnabled&安培;!&安培;!isNetworkEnabled){
//没有启用网络供应商
}其他{
this.canGetLocation = TRUE;
如果(isNetworkEnabled){
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES,这一点);
Log.d(网络,网络);
如果(的LocationManager!= NULL){
位置=的LocationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
如果(位置!= NULL){
纬度= location.getLatitude();
经度= location.getLongitude();
}
}
}
//如果GPS功能的获得纬度/长期使用GPS服务
如果(isGPSEnabled){
如果(位置== NULL){
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES,这一点);
Log.d(GPS已启用,GPS功能的);
如果(的LocationManager!= NULL){
位置=的LocationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
如果(位置!= NULL){
纬度= location.getLatitude();
经度= location.getLongitude();
}
}
}
}
} }赶上(例外五){
e.printStackTrace();
} 返回的位置;
} / **
*停止使用GPS监听器调用该函数将停止使用您的GPS
*应用
* * /
公共无效stopUsingGPS(){
如果(的LocationManager!= NULL){
locationManager.removeUpdates(GPSTracker.this);
}
} / **
*函数来获取纬度
* * /
公共双getLatitude(){
如果(位置!= NULL){
纬度= location.getLatitude();
} //返回纬度
返回纬度;
} / **
*函数来获取经度
* * /
公共双getLongitude(){
如果(位置!= NULL){
经度= location.getLongitude();
} //返回经度
返回经度;
} / **
*功能检查启用GPS / WIFI
*
* @返回布尔
* * /
公共布尔canGetLocation(){
返回this.canGetLocation;
} / **
*功能,以显示设置警告对话框在pressing设置按钮会
*劳克设置选项
* * /
公共无效showSettingsAlert(){
AlertDialog.Builder alertDialog =新AlertDialog.Builder(mContext); //设置对话框标题
alertDialog.setTitle(GPS是设置); //设置对话框留言
alertDialog
.setMessage(GPS未启用你想要去设置菜单?); //在pressing设置按钮
alertDialog.setPositiveButton(设置,
新DialogInterface.OnClickListener(){
公共无效的onClick(DialogInterface对话,诠释它){
意向意图=新意图(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(意向);
}
}); //在pressing取消按钮
alertDialog.setNegativeButton(取消,
新DialogInterface.OnClickListener(){
公共无效的onClick(DialogInterface对话,诠释它){
dialog.cancel();
}
}); //显示警报信息
alertDialog.show();
} @覆盖
公共无效onLocationChanged(地点){ 字符串消息=的String.format(
位置\\ n经度:%1 $ S \\北纬:%2 $ S
location.getLongitude(),location.getLatitude());
的System.out.println(氦氖:::::::::::多头纬度............ !!!+消息);
经度= location.getLongitude();
纬度= location.getLatitude();
Toast.makeText(mContext,纬度++经度,Toast.LENGTH_LONG)
。显示();
/ * UpdateWithNewLocation(位置); * /
的System.out.println(:位置CHANE);
} @覆盖
公共无效onProviderDisabled(字符串提供商){
} @覆盖
公共无效onProviderEnabled(字符串提供商){
} @覆盖
公共无效onStatusChanged(字符串提供商,INT地位,捆绑演员){
} @覆盖
公众的IBinder onBind(意向为arg0){
返回null;
}}
Activity.java
包com.epe.trucktrackers;进口org.json.JSONException;
进口org.json.JSONObject;进口utils.Const;
进口android.app.Activity;
进口android.app.ProgressDialog;
进口android.content.Context;
进口android.content.Intent;
进口android.location.Location;
进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.telephony.TelephonyManager;
进口android.util.Log;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.Button;
进口android.widget.EditText;
进口android.widget.Toast;
进口backend.BackendAPIService;公共类MainActivity延伸活动{
的EditText et_registration_no;
按钮btn_register;
静态GPSTracker GPS ;;
串纬度,经度;
私人ProgressDialog pDialog;
串UDID;
字符串状态;
串TRACKING_ID;
串UDID;
串LATI;
串隆基;
串registration_no;
INT标志; @覆盖
保护无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main); et_registration_no =(EditText上)findViewById(R.id.et_truck_no);
btn_register =(按钮)findViewById(R.id.btn_reg); TelephonyManager TelephonyMgr =(TelephonyManager)getSystemService(TELEPHONY_SERVICE);
UDID = TelephonyMgr.getDeviceId();
GPS =新GPSTracker(MainActivity.this); btn_register.setOnClickListener(新OnClickListener(){ @覆盖
公共无效的onClick(视图v){
GPS =新GPSTracker(MainActivity.this);
如果(gps.canGetLocation()){ 双纬度= gps.getLatitude();
双经度= gps.getLongitude(); // \\ n是新行
Toast.makeText(
getApplicationContext(),
您现在的位置是 - \\ nLat:+纬度
+\\ nLong:+经度,Toast.LENGTH_LONG)
。显示();
纬度北纬= +;
LNG =经度+; }其他{
//无法获取位置
未启用// GPS或网络
//要求用户在设置中启用GPS /网络
gps.showSettingsAlert();
}
新RegistartionApi()执行(); System.out的
.println(::::::::::::::服务启动:::::::::::::);
}
}); // API调用的REGISTARTION .. !! } 类RegistartionApi扩展的AsyncTask<太虚,太虚,太虚> { @覆盖
在preExecute保护无效(){
super.on preExecute();
//显示进度对话框
pDialog =新ProgressDialog(MainActivity.this);
pDialog.setMessage(请稍候...);
pDialog.setCancelable(假);
pDialog.show();
System.out的
.println(==========里面preexecute ===================); } @覆盖
保护无效doInBackground(虚空......为arg0){
字符串registrationURL = Const.API_REGISTRATION +?UDID =+ UDID
+与&纬度=+纬度+与&经度=+经度
+与& registration_no =
+ et_registration_no.getText()的toString()修剪()。
registrationURL = registrationURL.replace(,%); BackendAPIService SH =新BackendAPIService();
的System.out.println(:::::::::::::注册URL :::::::::::;
+ registrationURL);
字符串jsonStr = sh.makeServiceCall(registrationURL,
BackendAPIService.POST); Log.d(回应:,>中+ jsonStr);
的System.out.println(=============我的反应==========+ jsonStr); 如果(jsonStr!= NULL){
尝试{
JSONObject的jsonObj =新的JSONObject(jsonStr);
JSONObject的C =新的JSONObject(jsonStr); 如果(jsonObj.has(身份)){
状态= jsonObj.getString(状态);
{
如果(status.equalsIgnoreCase(成功)){
标志= 1;
C = jsonObj.getJSONObject(truck_tracking);
TRACKING_ID = c.getString(TRACKING_ID);
UDID = c.getString(UDID);
拉提= c.getString(纬度);
茇= c.getString(经度);
registration_no = C
.getString(registration_no); }其他{
标志= 2;
Toast.makeText(MainActivity.this,失败,
Toast.LENGTH_SHORT).show();
}
}
}
}赶上(JSONException E){
e.printStackTrace();
}
}其他{
Log.e(的ServiceHandler,无法从URL得到任何数据);
} 返回null;
} @覆盖
保护无效onPostExecute(虚空结果){
super.onPostExecute(结果);
//辞退进度对话框
如果(pDialog.isShowing())
pDialog.dismiss();
如果(标志== 1){
Toast.makeText(MainActivity.this,登记完成,
Toast.LENGTH_SHORT).show();
/ *意向书I =新意图(getApplicationContext(),GPSTracker.class);
startService(ⅰ); * / } }
}}
解决方案
试试这个。
包com.sample.location;
进口java.util.Timer中;
进口java.util.TimerTask中;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;
公共类MyLocation {
定时器定时器1;
LM的LocationManager;
LocationResult locationResult;
布尔gps_enabled = FALSE;
布尔network_enabled = FALSE; 公共布尔的getLocation(上下文的背景下,LocationResult结果){
//我用LocationResult回调类从传递位置值
// MyLocation用户code。
locationResult =结果;
如果(LM == NULL)
LM =(的LocationManager)上下文
.getSystemService(Context.LOCATION_SERVICE); //如果供应商是不允许的异常将被抛出。
尝试{
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
}赶上(例外前){
}
尝试{
network_enabled = LM
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}赶上(例外前){
} //如果没有启用提供商不启动监听器
如果(gps_enabled&安培;!&安培;!network_enabled)
返回false; 如果(gps_enabled)
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,0,
locationListenerGps);
如果(network_enabled)
lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0,0,
locationListenerNetwork);
定时器1 =新的Timer();
timer1.schedule(新GetLastLocation(),60 * 1000);
返回true;
} LocationListener的locationListenerGps =新LocationListener的(){
@覆盖
公共无效onLocationChanged(地点){
timer1.cancel();
locationResult.gotLocation(位置);
lm.removeUpdates(本);
lm.removeUpdates(locationListenerNetwork);
} / **
*当提供由用户禁用调用。如果requestLocationUpdates叫上一个已经禁用的提供者,这种方法被立即调用。
* @参数提供商
*与此更新相关的位置提供者的名称。
* /
@覆盖
公共无效onProviderDisabled(字符串提供商){
}
/ **
*当提供由用户启用时调用。
* @参数提供商
*与此更新相关的位置提供者的名称。
* /
@覆盖
公共无效onProviderEnabled(字符串提供商){
}
/ **
*当调用的供应商的地位变化。当提供者无法获取的位置,或者如果提供者在一段不可用的后最近变得可用此方法被调用。
* @参数提供商
*与此更新相关的位置提供者的名称。
* @参数状态
* OUT_OF_SERVICE如果供应商停止服务,而这预计不会在不久的将来改变; TEMPORARILY_UNAVAILABLE如果提供者暂时不可用,但预计将很快上市;和可用如果提供当前可用。
* @参数演员
*可选包将包含提供商特定的状态变量。
许多的额外捆绑共同键/值对下面列出。使用任何键的这个名单上的供应商必须按如下所述提供相应的值。
卫星 - 卫星的数量用于派生修复
* /
@覆盖
公共无效onStatusChanged(字符串提供商,INT地位,捆绑演员){
}
}; LocationListener的locationListenerNetwork =新LocationListener的(){
/ **
*当位置改变时调用。
*有关于使用所提供的定位对象没有限制。
* @参数位置
*新的位置,作为一个Location对象。
* /
@覆盖
公共无效onLocationChanged(地点){
timer1.cancel();
locationResult.gotLocation(位置);
lm.removeUpdates(本);
lm.removeUpdates(locationListenerGps);
}
/ **
*当提供由用户禁用调用。如果requestLocationUpdates叫上一个已经禁用的提供者,这种方法被立即调用。
* @参数提供商
*与此更新相关的位置提供者的名称。
* /
@覆盖
公共无效onProviderDisabled(字符串提供商){
}
/ **
*当提供由用户启用时调用。
* @参数提供商
*与此更新相关的位置提供者的名称。
* /
@覆盖
公共无效onProviderEnabled(字符串提供商){
}
/ **
*当调用的供应商的地位变化。当提供者无法获取的位置,或者如果提供者在一段不可用的后最近变得可用此方法被调用。
* @参数提供商
*与此更新相关的位置提供者的名称。
* @参数状态
* OUT_OF_SERVICE如果供应商停止服务,而这预计不会在不久的将来改变; TEMPORARILY_UNAVAILABLE如果提供者暂时不可用,但预计将很快上市;和可用如果提供当前可用。
* @参数演员
*可选包将包含提供商特定的状态变量。
许多的额外捆绑共同键/值对下面列出。使用任何键的这个名单上的供应商必须按如下所述提供相应的值。
卫星 - 卫星的数量用于派生修复
* /
@覆盖
公共无效onStatusChanged(字符串提供商,INT地位,捆绑演员){
}
}; / **
*要计算的GPS位置和网络位置
*每5秒这个类的帮助
*
* /
类GetLastLocation扩展的TimerTask {
@覆盖
公共无效的run(){
lm.removeUpdates(locationListenerGps);
lm.removeUpdates(locationListenerNetwork); 位置net_loc = NULL,gps_loc = NULL;
如果(gps_enabled)
gps_loc = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
如果(network_enabled)
net_loc = LM
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); //如果有两个值,用最新一期
如果(gps_loc = NULL&放大器;!&安培;!net_loc = NULL){
如果(gps_loc.getTime()> net_loc.getTime())
locationResult.gotLocation(gps_loc);
其他
locationResult.gotLocation(net_loc);
返回;
} 如果(gps_loc!= NULL){
locationResult.gotLocation(gps_loc);
返回;
}
如果(net_loc!= NULL){
locationResult.gotLocation(net_loc);
返回;
}
locationResult.gotLocation(NULL);
}
} / **
*此抽象类用于从其他类中的位置。
*
* /
公共静态抽象类LocationResult {
公共抽象无效gotLocation(位置定位);
}}
在您的Activity.java
的LocationManager myLocationManager =(的LocationManager)getApplicationContext()getSystemService(Context.LOCATION_SERVICE)。
MyLocation myLocation =新MyLocation();
myLocation.getLocation(getApplicationContext(),locationResult);
LocationResult locationResult =新LocationResult(){ @覆盖
公共无效gotLocation(地点){
双纬度= location.getLatitude();
双经度= location.getLongitude();
}
};
I want to make an android program in that I get latitude and longitude in Toast after each 1 minute interval and populated on toast even after my application closed.
I have tried as below,But I only getting on time latitude and longitude,Please tell me what should i do for it to get continuously lat long in toast.My code is as below: GPStracker.java
package com.epe.trucktrackers;
import java.util.Timer;
import java.util.TimerTask;
import utils.Const;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
import android.widget.Toast;
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
private Timer timer;
private long UPDATE_INTERVAL;
public static final String Stub = null;
LocationManager mlocmag;
LocationListener mlocList;
private double lat, longn;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 5; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
/**
* Stop using GPS listener Calling this function will stop using GPS in your
* app
* */
public void stopUsingGPS() {
if (locationManager != null) {
locationManager.removeUpdates(GPSTracker.this);
}
}
/**
* Function to get latitude
* */
public double getLatitude() {
if (location != null) {
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude() {
if (location != null) {
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/wifi enabled
*
* @return boolean
* */
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog On pressing Settings button will
* lauch Settings Options
* */
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog
.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing Settings button
alertDialog.setPositiveButton("Settings",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
@Override
public void onLocationChanged(Location location) {
String message = String.format(
"Location \n Longitude: %1$s \n Latitude: %2$s",
location.getLongitude(), location.getLatitude());
System.out.println(":::::::::::Ne lat longs............!!!" + message);
longitude = location.getLongitude();
latitude = location.getLatitude();
Toast.makeText(mContext, latitude + " " + longitude, Toast.LENGTH_LONG)
.show();
/* UpdateWithNewLocation(location); */
System.out.println(":Location chane");
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public IBinder onBind(Intent arg0) {
return null;
}
}
Activity.java
package com.epe.trucktrackers;
import org.json.JSONException;
import org.json.JSONObject;
import utils.Const;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.os.AsyncTask;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import backend.BackendAPIService;
public class MainActivity extends Activity {
EditText et_registration_no;
Button btn_register;
static GPSTracker gps;;
String lat, lng;
private ProgressDialog pDialog;
String udid;
String status;
String tracking_id;
String UDID;
String lati;
String longi;
String registration_no;
int flag;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_registration_no = (EditText) findViewById(R.id.et_truck_no);
btn_register = (Button) findViewById(R.id.btn_reg);
TelephonyManager TelephonyMgr = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
udid = TelephonyMgr.getDeviceId();
gps = new GPSTracker(MainActivity.this);
btn_register.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
gps = new GPSTracker(MainActivity.this);
if (gps.canGetLocation()) {
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
// \n is for new line
Toast.makeText(
getApplicationContext(),
"Your Location is - \nLat: " + latitude
+ "\nLong: " + longitude, Toast.LENGTH_LONG)
.show();
lat = latitude + "";
lng = longitude + "";
} else {
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
new RegistartionApi().execute();
System.out
.println("::::::::::::::service started:::::::::::::");
}
});
// api call for the REGISTARTION ..!!
}
class RegistartionApi extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
System.out
.println("==========inside preexecute===================");
}
@Override
protected Void doInBackground(Void... arg0) {
String registrationURL = Const.API_REGISTRATION + "?UDID=" + udid
+ "&latitude=" + lat + "&longitude=" + lng
+ "®istration_no="
+ et_registration_no.getText().toString().trim();
registrationURL = registrationURL.replace(" ", "%");
BackendAPIService sh = new BackendAPIService();
System.out.println(":::::::::::::Registration url:::::::::::;"
+ registrationURL);
String jsonStr = sh.makeServiceCall(registrationURL,
BackendAPIService.POST);
Log.d("Response: ", "> " + jsonStr);
System.out.println("=============MY RESPONSE==========" + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
JSONObject c = new JSONObject(jsonStr);
if (jsonObj.has("status")) {
status = jsonObj.getString("status");
{
if (status.equalsIgnoreCase("success")) {
flag = 1;
c = jsonObj.getJSONObject("truck_tracking");
tracking_id = c.getString("tracking_id");
UDID = c.getString("UDID");
lati = c.getString("latitude");
longi = c.getString("longitude");
registration_no = c
.getString("registration_no");
} else {
flag = 2;
Toast.makeText(MainActivity.this, "Failed",
Toast.LENGTH_SHORT).show();
}
}
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
if (flag == 1) {
Toast.makeText(MainActivity.this, "Registration Done",
Toast.LENGTH_SHORT).show();
/*Intent i = new Intent(getApplicationContext(), GPSTracker.class);
startService(i);*/
}
}
}
}
解决方案
Try this one. package com.sample.location;
import java.util.Timer;
import java.util.TimerTask;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
public class MyLocation {
Timer timer1;
LocationManager lm;
LocationResult locationResult;
boolean gps_enabled = false;
boolean network_enabled = false;
public boolean getLocation(Context context, LocationResult result) {
// I use LocationResult callback class to pass location value from
// MyLocation to user code.
locationResult = result;
if (lm == null)
lm = (LocationManager) context
.getSystemService(Context.LOCATION_SERVICE);
// exceptions will be thrown if provider is not permitted.
try {
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch (Exception ex) {
}
try {
network_enabled = lm
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
} catch (Exception ex) {
}
// don't start listeners if no provider is enabled
if (!gps_enabled && !network_enabled)
return false;
if (gps_enabled)
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
locationListenerGps);
if (network_enabled)
lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0,
locationListenerNetwork);
timer1 = new Timer();
timer1.schedule(new GetLastLocation(), 60*1000);
return true;
}
LocationListener locationListenerGps = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
timer1.cancel();
locationResult.gotLocation(location);
lm.removeUpdates(this);
lm.removeUpdates(locationListenerNetwork);
}
/**
* Called when the provider is disabled by the user. If requestLocationUpdates is called on an already disabled provider, this method is called immediately.
* @param provider
* the name of the location provider associated with this update.
*/
@Override
public void onProviderDisabled(String provider) {
}
/**
* Called when the provider is enabled by the user.
* @param provider
* the name of the location provider associated with this update.
*/
@Override
public void onProviderEnabled(String provider) {
}
/**
* Called when the provider status changes. This method is called when a provider is unable to fetch a location or if the provider has recently become available after a period of unavailability.
* @param provider
* the name of the location provider associated with this update.
* @param status
* OUT_OF_SERVICE if the provider is out of service, and this is not expected to change in the near future; TEMPORARILY_UNAVAILABLE if the provider is temporarily unavailable but is expected to be available shortly; and AVAILABLE if the provider is currently available.
* @param extras
* an optional Bundle which will contain provider specific status variables.
A number of common key/value pairs for the extras Bundle are listed below. Providers that use any of the keys on this list must provide the corresponding value as described below.
satellites - the number of satellites used to derive the fix
*/
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};
LocationListener locationListenerNetwork = new LocationListener() {
/**
* Called when the location has changed.
* There are no restrictions on the use of the supplied Location object.
* @param location
* The new location, as a Location object.
*/
@Override
public void onLocationChanged(Location location) {
timer1.cancel();
locationResult.gotLocation(location);
lm.removeUpdates(this);
lm.removeUpdates(locationListenerGps);
}
/**
* Called when the provider is disabled by the user. If requestLocationUpdates is called on an already disabled provider, this method is called immediately.
* @param provider
* the name of the location provider associated with this update.
*/
@Override
public void onProviderDisabled(String provider) {
}
/**
* Called when the provider is enabled by the user.
* @param provider
* the name of the location provider associated with this update.
*/
@Override
public void onProviderEnabled(String provider) {
}
/**
* Called when the provider status changes. This method is called when a provider is unable to fetch a location or if the provider has recently become available after a period of unavailability.
* @param provider
* the name of the location provider associated with this update.
* @param status
* OUT_OF_SERVICE if the provider is out of service, and this is not expected to change in the near future; TEMPORARILY_UNAVAILABLE if the provider is temporarily unavailable but is expected to be available shortly; and AVAILABLE if the provider is currently available.
* @param extras
* an optional Bundle which will contain provider specific status variables.
A number of common key/value pairs for the extras Bundle are listed below. Providers that use any of the keys on this list must provide the corresponding value as described below.
satellites - the number of satellites used to derive the fix
*/
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};
/**
* The GPS location and Network location to be calculated
* in every 5 seconds with the help of this class
*
*/
class GetLastLocation extends TimerTask {
@Override
public void run() {
lm.removeUpdates(locationListenerGps);
lm.removeUpdates(locationListenerNetwork);
Location net_loc = null, gps_loc = null;
if (gps_enabled)
gps_loc = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (network_enabled)
net_loc = lm
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
// if there are both values use the latest one
if (gps_loc != null && net_loc != null) {
if (gps_loc.getTime() > net_loc.getTime())
locationResult.gotLocation(gps_loc);
else
locationResult.gotLocation(net_loc);
return;
}
if (gps_loc != null) {
locationResult.gotLocation(gps_loc);
return;
}
if (net_loc != null) {
locationResult.gotLocation(net_loc);
return;
}
locationResult.gotLocation(null);
}
}
/**
* This abstract class is used to get the location from other class.
*
*/
public static abstract class LocationResult {
public abstract void gotLocation(Location location);
}
}
In your Activity.java
LocationManager myLocationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
MyLocation myLocation = new MyLocation();
myLocation.getLocation(getApplicationContext(), locationResult);
LocationResult locationResult = new LocationResult() {
@Override
public void gotLocation(Location location) {
double latitude = location.getLatitude();
double longitude = location.getLongitude();
}
};
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