Android Studio:获取谷歌地图中当前标记位置的GPS坐标
我有以下内容需要包含在Android应用程序中,我希望有人能提供一些代码示例来说明我在这里要实现的目标Android Studio:获取谷歌地图中当前标记位置的GPS坐标,android,gps,Android,Gps,我有以下内容需要包含在Android应用程序中,我希望有人能提供一些代码示例来说明我在这里要实现的目标 Android应用程序在屏幕上有谷歌地图界面 该应用程序的用户可以浏览打开的谷歌地图界面,并选择一个特定的位置 我想获取这个位置的GPS坐标 提前谢谢 这里,回答。很好用。 我还从堆栈溢出中发现了一些问题的解决方案。但是现在所有的问题都解决了,代码运行良好 添加对清单的权限 AndroidManifest.xml <?xml version="1.0" encoding="utf-8
- Android应用程序在屏幕上有谷歌地图界面
- 该应用程序的用户可以浏览打开的谷歌地图界面,并选择一个特定的位置
- 我想获取这个位置的GPS坐标
提前谢谢 这里,回答。很好用。 我还从堆栈溢出中发现了一些问题的解决方案。但是现在所有的问题都解决了,代码运行良好 添加对清单的权限 AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="sichlearning.example.com.androidgpstrackingactivity">
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="@string/google_maps_key" />
<activity
android:name=".MapsActivity"
android:label="@string/title_activity_maps"></activity>
</application>
</manifest>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button android:id="@+id/btnShowLocation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Show Location"
android:layout_gravity="center_horizontal"
android:layout_marginTop="50dp"
/>
</LinearLayout>
GPSTracker.java
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
Button btnShowLocation;
// GPSTracker class
GPSTracker gps;
@Override
protected 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(MainActivity.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();
}
}
});
}
}
import android.Manifest;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
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.support.v4.app.ActivityCompat;
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;
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) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
//return TODO;
}
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
}
return location;
}
/**
* Stop using GPS listener Calling this function will stop using GPS in your
* app.
* */
public void stopUsingGPS() {
if (locationManager != null) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
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 DialogHelp Title
alertDialog.setTitle("GPS is settings");
// Setting DialogHelp 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) {
try {
float bestAccuracy = -1f;
if (location.getAccuracy() != 0.0f && (location.getAccuracy() < bestAccuracy) || bestAccuracy == -1f) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the 01user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
// return ;
}
locationManager.removeUpdates(this);
}
bestAccuracy = location.getAccuracy();
} catch (NullPointerException e) {
System.out.print("Caught the NullPointerException");
}
}
@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;
}
public float getAccurecy()
{
return location.getAccuracy();
}
}
导入android.Manifest;
导入android.app.AlertDialog;
导入android.app.Service;
导入android.content.Context;
导入android.content.DialogInterface;
导入android.content.Intent;
导入android.content.pm.PackageManager;
导入android.location.location;
导入android.location.LocationListener;
导入android.location.LocationManager;
导入android.os.Bundle;
导入android.os.IBinder;
导入android.provider.Settings;
导入android.support.v4.app.ActivityCompat;
公共类GPSTracker扩展服务实现LocationListener{
私有最终上下文mContext;
//GPS状态标志
布尔值isGPSEnabled=false;
//网络状态标志
布尔值isNetworkEnabled=false;
//GPS状态标志
布尔值canGetLocation=false;
位置;//位置
双纬度;//纬度
双经度;//经度
//更改更新的最小距离(以米为单位)
私有静态最终长最小距离更改更新=10;//10米
//更新之间的最短时间(以毫秒为单位)
私有静态最终长MIN\u时间\u BW\u更新=1000*60*1;//1分钟
//声明位置管理器
受保护的LocationManager LocationManager;
公共GPSTracker(上下文){
this.mContext=上下文;
getLocation();
}
公共位置getLocation(){
试一试{
locationManager=(locationManager)mContext
.getSystemService(位置服务);
//获取GPS状态
isGPSEnabled=位置管理器
.isprovidenabled(LocationManager.GPS\U提供商);
//获取网络状态
isNetworkEnabled=locationManager
.isProviderEnabled(LocationManager.NETWORK_提供商);
如果(!isGPSEnabled&!isNetworkEnabled){
//未启用任何网络提供程序
}否则{
this.canGetLocation=true;
if(可联网){
locationManager.RequestLocationUpdate(
LocationManager.NETWORK\u提供程序,
最短时间更新,
最小距离\u更改\u用于更新,此);
//Log.d(“网络”、“网络”);
如果(locationManager!=null){
location=locationManager.getLastKnownLocation(locationManager.NETWORK\u提供程序);
如果(位置!=null){
纬度=位置。getLatitude();
longitude=location.getLongitude();
}
}
}
//如果启用GPS,则使用GPS服务获取横向/纵向
如果(isGPSEnabled){
if(位置==null){
locationManager.RequestLocationUpdate(
LocationManager.GPS\u提供程序,
最短时间更新,
最小距离\u更改\u用于更新,此);
//Log.d(“GPS启用”、“GPS启用”);
如果(locationManager!=null){
if(ActivityCompat.checkSelfPermission(this,Manifest.permission.ACCESS\u FINE\u LOCATION)!=PackageManager.permission\u已授予和&ActivityCompat.checkSelfPermission(this,Manifest.permission.ACCESS\u LOCATION)!=PackageManager.permission\u已授予){
考虑到呼叫
//ActivityCompat#请求权限
//在此处请求缺少的权限,然后覆盖
//public void onRequestPermissionsResult(int-requestCode,字符串[]权限,
//int[]格兰特结果)
//处理用户授予权限的情况。请参阅文档
//对于ActivityCompat,请请求权限以获取更多详细信息。
//返回待办事项;
}
位置=位置管理器
.getLastKnownLocation(LocationManager.GPS\U提供商);
如果(位置!=null){
纬度=位置。getLatitude();
longitude=location.getLongitude();
}
}
}
}
}
}捕获(例外e){
}
返回位置;
}
/**
*停止使用GPS侦听器调用此函数将停止在您的系统中使用GPS
*应用程序。
* */
使用GPS()的公共无效停止{
如果(locationManager!=null){
if(ActivityCompat.checkSelfPermission(this,Manifest.permission.ACCESS\u FINE\u LOCATION)!=PackageManager.PERMISSI