استفاده از جاوا برای دریافت شهر کاربر در b4a

[MR.B4A 107]

سلام به همه

این کدهایی هست که به زبان جاوا برای دریافت نام شهر از طریق لوکیشن من پیدا کردم:

اینا مجوزاشه:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.cityname">

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

    <application
        android:allowBackup="true"
        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>
    </application>
</manifest>

اینا هم دستوراتش

package com.example.cityname;

import android.Manifest;
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.Bundle;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {

    private LocationManager locationManager;
    private TextView cityTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        cityTextView = findViewById(R.id.cityTextView);

        locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
            ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
        } else {
            getLocation();
        }
    }

    private void getLocation() {
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, new LocationListener() {
            @Override
            public void onLocationChanged(@NonNull Location location) {
                getCityName(location.getLatitude(), location.getLongitude());
            }
        });
    }

    private void getCityName(double latitude, double longitude) {
        Geocoder geocoder = new Geocoder(this, Locale.getDefault());
        try {
            List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 1);
            if (addresses != null && !addresses.isEmpty()) {
                String cityName = addresses.get(0).getLocality();
                cityTextView.setText("شهر شما: " + cityName);
            } else {
                cityTextView.setText("نامشخص");
            }
        } catch (IOException e) {
            e.printStackTrace();
            cityTextView.setText("خطا در دریافت نام شهر");
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 1 && grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            getLocation();
        }
    }
}

چه طوری میشه از این دستورات توی b4a استفاده کرد؟!

[محمدرضا شاهپیری 5,559]

نیازی به جاوا نیست. کتابخونه gps رو تیک بزنید و کد زیر رو منیفست اضافه کنید

AddPermission(android.permission.ACCESS_FINE_LOCATION)

به شکل زیر میتونید بگیرید لوکیشن رو

Sub Process_Globals
	Dim gp As GPS
	Dim runtime As RuntimePermissions
End Sub

Sub Activity_Create(FirstTime As Boolean)
	If runtime.Check("android.permission.ACCESS_FINE_LOCATION") Then
		   startLocating
		Else
			runtime.CheckAndRequest("android.permission.ACCESS_FINE_LOCATION")
	End If
End Sub

Private Sub startLocating
	gp.Initialize("gp")
	If gp.GPSEnabled = False Then StartActivity(gp.LocationSettingsIntent)
	gp.start(1000,2)
End Sub

Private Sub Activity_PermissionResult (Permission As String, Result As Boolean)
	If Result Then
		startLocating
	End If
End Sub
Private Sub gp_LocationChanged (Location1 As Location)
	Log("gp_LocationChanged:"&Location1.Longitude&"-"&Location1.Latitude)
End Sub

Private Sub gp_UserEnabled (Enabled As Boolean)
	Log("gp_UserEnabled:"&Enabled)
End Sub