问题描述
我想提出一个简单的Android应用获取的位置一个Android用户,我需要的纬度和经度发送到MySQL数据库。我如何能做到用这种code段的?
数据库处理器类
包com.example.gpstracking;进口android.content.ContentValues;
进口android.content.Context;
进口android.database.sqlite.SQLiteDatabase;
进口android.database.sqlite.SQLiteOpenHelper;公共类数据库处理器扩展SQLiteOpenHelper { //所有静态变量
//数据库版本
私有静态最终诠释DATABASE_VERSION = 1; //数据库名称
私有静态最后弦乐DATABASE_NAME =GPS; //联系人表名
私有静态最后弦乐TABLE_CONTACTS =地利; //联系方式表列名
私有静态最后弦乐KEY_ID =ID;
私有静态最后弦乐KEY_LAT =纬度;
私有静态最后弦乐KEY_LONG =长; 公共数据库处理器(上下文的背景下){
超(背景下,DATABASE_NAME,空,DATABASE_VERSION);
} //创建表
@覆盖
公共无效的onCreate(SQLiteDatabase DB){
字符串CREATE_CONTACTS_TABLE =CREATE TABLE+ TABLE_CONTACTS +(
+ KEY_ID +INTEGER PRIMARY KEY,+ KEY_LAT +TEXT
+ KEY_LONG +TEXT+);
db.execSQL(CREATE_CONTACTS_TABLE);
} //数据库升级
@覆盖
公共无效onUpgrade(SQLiteDatabase分贝,INT oldVersion,诠释静态网页){
如果存在//删除旧的表
db.execSQL(DROP TABLE IF EXISTS+ TABLE_CONTACTS); //再次创建表
的onCreate(DB);
} / **
*所有CRUD(创建,读取,更新,删除)操作
* / //添加新值
无效addvalues(价值的LatLong){
SQLiteDatabase分贝= this.getWritableDatabase(); ContentValues值=新ContentValues();
values.put(KEY_LAT,value.get_lat()); // 联系人姓名
values.put(KEY_LONG,value.get_long()); // 联系电话 //插入行
db.insert(TABLE_CONTACTS,空,价值);
db.close(); //关闭数据库连接
}
}
我的日志猫
13 12-30:59:49.040:D / gralloc_goldfish(1411):无仿真模拟GPU检测。
12-30 13:59:50.960:D / GPS功能的(1411):启用GPS
12-30 13:59:50.980:D / AndroidRuntime(1411):关闭VM
12-30 13:59:50.980:W / dalvikvm(1411):主题ID = 1:螺纹未捕获的异常(组= 0xb3a6aba8)退出
12-30 13:59:50.990:E / AndroidRuntime(1411):致命异常:主要
12-30 13:59:50.990:E / AndroidRuntime(1411):工艺:com.example.gpstracking,PID:1411
12-30 13:59:50.990:E / AndroidRuntime(1411):显示java.lang.NullPointerException
12-30 13:59:50.990:E / AndroidRuntime(1411):在com.example.gpstracking.AndroidGPSTrackingActivity $ 1.onClick(AndroidGPSTrackingActivity.java:46)
12-30 13:59:50.990:E / AndroidRuntime(1411):在android.view.View.performClick(View.java:4438)
12-30 13:59:50.990:E / AndroidRuntime(1411):在android.view.View $ PerformClick.run(View.java:18422)
12-30 13:59:50.990:E / AndroidRuntime(1411):在android.os.Handler.handleCallback(Handler.java:733)
12-30 13:59:50.990:E / AndroidRuntime(1411):在android.os.Handler.dispatchMessage(Handler.java:95)
12-30 13:59:50.990:E / AndroidRuntime(1411):在android.os.Looper.loop(Looper.java:136)
12-30 13:59:50.990:E / AndroidRuntime(1411):在android.app.ActivityThread.main(ActivityThread.java:5001)
12-30 13:59:50.990:E / AndroidRuntime(1411):在java.lang.reflect.Method.invokeNative(本机方法)
12-30 13:59:50.990:E / AndroidRuntime(1411):在java.lang.reflect.Method.invoke(Method.java:515)
12-30 13:59:50.990:E / AndroidRuntime(1411):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:785)
12-30 13:59:50.990:E / AndroidRuntime(1411):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
12-30 13:59:50.990:E / AndroidRuntime(1411):在dalvik.system.NativeStart.main(本机方法)
12-30 13:59:55.950:I /流程(1411):发送信号。 PID:1411 SIG:9
这是我的GPSTracker类
包com.example.gpstracking;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.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;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; 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 = 10; //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;
//首先从网络提供商处获取位置
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
*调用此函数将停止在你的应用程序中使用GPS
* * /
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设置按钮将劳克设置选项
* * /
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){
} @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;
}}
下面是我的Android活动
包com.example.gpstracking;进口android.app.Activity;
进口android.os.Bundle;
进口android.view.View;
进口android.widget.Button;
进口android.widget.Toast;公共类AndroidGPSTrackingActivity延伸活动{ 按钮btnShowLocation; // GPSTracker类
GPSTracker GPS; @覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main); btnShowLocation =(按钮)findViewById(R.id.btnShowLocation); //展示位置按钮单击事件
btnShowLocation.setOnClickListener(新View.OnClickListener(){ @覆盖
公共无效的onClick(查看为arg0){
//创建类对象
GPS =新GPSTracker(AndroidGPSTrackingActivity.this); //检查是否启用GPS
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).show();
}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();
} }
});
}}
喜使用以下code:
步骤1创建以下类LatLong.java:
公共类的LatLong { //私有变量
INT _id;
串_lat;
串_long;
//空的构造
公众的LatLong(){ }
//构造
公众的LatLong(INT ID,字符串纬度,经度字符串){
this._id = ID;
this._lat =纬度;
this._long =经度;
} //构造
公众的LatLong(字符串纬度,经度字符串){
this._lat =纬度;
this._long =经度;
}
//获取ID
公众诠释的getID(){
返回this._id;
} //设置ID
公共无效SETID(INT ID){
this._id = ID;
} 公共字符串get_lat(){
返回_lat;
}
公共无效set_lat(字符串_lat){
this._lat = _lat;
}
公共字符串get_long(){
返回_long;
}
公共无效set_long(字符串_long){
this._long = _long;
}}
第2步:创建以下DB类:DatabaseHandler.java
进口android.content.ContentValues;
进口android.content.Context;
进口android.database.sqlite.SQLiteDatabase;
进口android.database.sqlite.SQLiteOpenHelper;公共类数据库处理器扩展SQLiteOpenHelper { //所有静态变量
//数据库版本
私有静态最终诠释DATABASE_VERSION = 1; //数据库名称
私有静态最后弦乐DATABASE_NAME =GPS; //联系人表名
私有静态最后弦乐TABLE_CONTACTS =gracking; //联系方式表列名
私有静态最后弦乐KEY_ID =ID;
私有静态最后弦乐KEY_LAT =纬度;
私有静态最后弦乐KEY_LONG =长; 公共数据库处理器(上下文的背景下){
超(背景下,DATABASE_NAME,空,DATABASE_VERSION);
} //创建表
@覆盖
公共无效的onCreate(SQLiteDatabase DB){
字符串CREATE_CONTACTS_TABLE =CREATE TABLE+ TABLE_CONTACTS +(
+ KEY_ID +INTEGER PRIMARY KEY,+ KEY_LAT +TEXT
+ KEY_LONG +TEXT+);
db.execSQL(CREATE_CONTACTS_TABLE);
} //数据库升级
@覆盖
公共无效onUpgrade(SQLiteDatabase分贝,INT oldVersion,诠释静态网页){
如果存在//删除旧的表
db.execSQL(DROP TABLE IF EXISTS+ TABLE_CONTACTS); //再次创建表
的onCreate(DB);
} / **
*所有CRUD(创建,读取,更新,删除)操作
* / //添加新值
无效addvalues(价值的LatLong){
SQLiteDatabase分贝= this.getWritableDatabase(); ContentValues值=新ContentValues();
values.put(KEY_LAT,value.get_lat()); // 联系人姓名
values.put(KEY_LONG,value.get_long()); // 联系电话 //插入行
db.insert(TABLE_CONTACTS,空,价值);
db.close(); //关闭数据库连接
}
}
第三步:添加以下code在你的类:
btnShowLocation.setOnClickListener(新View.OnClickListener(){ @覆盖
公共无效的onClick(查看为arg0){
//创建类对象
GPS =新GPSTracker(AndroidGPSTrackingActivity.this); //检查是否启用GPS
如果(gps.canGetLocation()){ 双纬度= gps.getLatitude();
双经度= gps.getLongitude();
数据库处理器DB =新的数据库处理器(本); / **
* CRUD操作
* * /
//插入latlongs
Log.d(插入,插入..);
db.addvalues(新的LatLong(latvalue,的longValue)); Toast.makeText(getApplicationContext(),您现在的位置是 - \\ nLat:+纬度+\\ nLong:+经度,Toast.LENGTH_LONG).show();
}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();
} }
});
enter image description hereI am making a simple android app to get the location of an android user and I need to send the latitude and longitude to the MySQL database. How can I do that with this kind of code segment?
DatabaseHandler class
package com.example.gpstracking;
import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DatabaseHandler extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "gps";
// Contacts table name
private static final String TABLE_CONTACTS = "location";
// Contacts Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_LAT = "lat";
private static final String KEY_LONG = "long";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
+ KEY_ID + " INTEGER PRIMARY KEY," + KEY_LAT + " TEXT,"
+ KEY_LONG + " TEXT" + ")";
db.execSQL(CREATE_CONTACTS_TABLE);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
// Create tables again
onCreate(db);
}
/**
* All CRUD(Create, Read, Update, Delete) Operations
*/
// Adding new values
void addvalues(LatLong value) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_LAT, value.get_lat()); // Contact Name
values.put(KEY_LONG, value.get_long()); // Contact Phone
// Inserting Row
db.insert(TABLE_CONTACTS, null, values);
db.close(); // Closing database connection
}
}
My log cat
12-30 13:59:49.040: D/gralloc_goldfish(1411): Emulator without GPU emulation detected.
12-30 13:59:50.960: D/GPS Enabled(1411): GPS Enabled
12-30 13:59:50.980: D/AndroidRuntime(1411): Shutting down VM
12-30 13:59:50.980: W/dalvikvm(1411): threadid=1: thread exiting with uncaught exception (group=0xb3a6aba8)
12-30 13:59:50.990: E/AndroidRuntime(1411): FATAL EXCEPTION: main
12-30 13:59:50.990: E/AndroidRuntime(1411): Process: com.example.gpstracking, PID: 1411
12-30 13:59:50.990: E/AndroidRuntime(1411): java.lang.NullPointerException
12-30 13:59:50.990: E/AndroidRuntime(1411): at com.example.gpstracking.AndroidGPSTrackingActivity$1.onClick(AndroidGPSTrackingActivity.java:46)
12-30 13:59:50.990: E/AndroidRuntime(1411): at android.view.View.performClick(View.java:4438)
12-30 13:59:50.990: E/AndroidRuntime(1411): at android.view.View$PerformClick.run(View.java:18422)
12-30 13:59:50.990: E/AndroidRuntime(1411): at android.os.Handler.handleCallback(Handler.java:733)
12-30 13:59:50.990: E/AndroidRuntime(1411): at android.os.Handler.dispatchMessage(Handler.java:95)
12-30 13:59:50.990: E/AndroidRuntime(1411): at android.os.Looper.loop(Looper.java:136)
12-30 13:59:50.990: E/AndroidRuntime(1411): at android.app.ActivityThread.main(ActivityThread.java:5001)
12-30 13:59:50.990: E/AndroidRuntime(1411): at java.lang.reflect.Method.invokeNative(Native Method)
12-30 13:59:50.990: E/AndroidRuntime(1411): at java.lang.reflect.Method.invoke(Method.java:515)
12-30 13:59:50.990: E/AndroidRuntime(1411): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
12-30 13:59:50.990: E/AndroidRuntime(1411): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
12-30 13:59:50.990: E/AndroidRuntime(1411): at dalvik.system.NativeStart.main(Native Method)
12-30 13:59:55.950: I/Process(1411): Sending signal. PID: 1411 SIG: 9
here is my GPSTracker class
package com.example.gpstracking;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
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;
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;
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 = 10; // 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;
// First get location from Network Provider
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) {
}
@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;
}
}
Here is my Android Activity
package com.example.gpstracking;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class AndroidGPSTrackingActivity extends Activity {
Button btnShowLocation;
// GPSTracker class
GPSTracker gps;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnShowLocation = (Button) findViewById(R.id.btnShowLocation);
// show location button click event
btnShowLocation.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// create class object
gps = new GPSTracker(AndroidGPSTrackingActivity.this);
// check if GPS enabled
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();
}else{
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
}
});
}
}
hi use the following code:
Step 1 Create the following class LatLong.java:
public class LatLong {
//private variables
int _id;
String _lat;
String _long;
// Empty constructor
public LatLong(){
}
// constructor
public LatLong(int id, String latitude, String longitude){
this._id = id;
this._lat = latitude;
this._long = longitude;
}
// constructor
public LatLong(String latitude, String longitude){
this._lat = latitude;
this._long = longitude;
}
// getting ID
public int getID(){
return this._id;
}
// setting id
public void setID(int id){
this._id = id;
}
public String get_lat() {
return _lat;
}
public void set_lat(String _lat) {
this._lat = _lat;
}
public String get_long() {
return _long;
}
public void set_long(String _long) {
this._long = _long;
}
}
Step 2:Create the following db class:DatabaseHandler.java
import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DatabaseHandler extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "gps";
// Contacts table name
private static final String TABLE_CONTACTS = "gracking";
// Contacts Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_LAT = "lat";
private static final String KEY_LONG = "long";
public DatabaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
+ KEY_ID + " INTEGER PRIMARY KEY," + KEY_LAT + " TEXT,"
+ KEY_LONG + " TEXT" + ")";
db.execSQL(CREATE_CONTACTS_TABLE);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
// Create tables again
onCreate(db);
}
/**
* All CRUD(Create, Read, Update, Delete) Operations
*/
// Adding new values
void addvalues(LatLong value) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_LAT, value.get_lat()); // Contact Name
values.put(KEY_LONG, value.get_long()); // Contact Phone
// Inserting Row
db.insert(TABLE_CONTACTS, null, values);
db.close(); // Closing database connection
}
}
Step 3:Add the following code in your class:
btnShowLocation.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// create class object
gps = new GPSTracker(AndroidGPSTrackingActivity.this);
// check if GPS enabled
if(gps.canGetLocation()){
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
DatabaseHandler db = new DatabaseHandler(this);
/**
* CRUD Operations
* */
// Inserting latlongs
Log.d("Insert: ", "Inserting ..");
db.addvalues(new LatLong("latvalue", "longvalue"));
Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
}else{
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
}
});
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