Как запустить Android Radio Group на Java ⇐ JAVA

[Гость]

Я хочу использовать Radio Group с кнопками в студии Android
Я разрабатываю приложение для Android, в котором мне нужно фиксировать ввод пользователя с помощью RadioGroup в AlertDialog. Ниже приведен фрагмент кода, который я использую:

Код: Выделить всё

import androidx.appcompat.app.AppCompatActivity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;

public class MainActivity extends AppCompatActivity {

Button bt;
RadioGroup g1;
RadioGroup g2;

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

bt = findViewById(R.id.button);
g1 = findViewById(R.id.radioGroup);
g2 = findViewById(R.id.radioGroup2);

bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(MainActivity.this);
alertDialogBuilder.setTitle("Alert");
alertDialogBuilder.setMessage("Click Yes to Submit").setCancelable(false).setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int ans1 = g1.getCheckedRadioButtonId();
int ans2 = g2.getCheckedRadioButtonId();

String selectedOptionQ1 = "";
String selectedOptionQ2 = "";

if(ans1 != -1) {
View selectedRadioButtonViewQ1 = g1.findViewById(ans1);
if(selectedRadioButtonViewQ1 != null && selectedRadioButtonViewQ1 instanceof RadioButton) {
selectedOptionQ1 = ((RadioButton) selectedRadioButtonViewQ1).getText().toString();
}
}

if(ans2 != -1) {
View selectedRadioButtonViewQ2 = g2.findViewById(ans2);
if(selectedRadioButtonViewQ2 != null && selectedRadioButtonViewQ2 instanceof RadioButton) {
selectedOptionQ2 = ((RadioButton) selectedRadioButtonViewQ2).getText().toString();
}
}

Intent intent = new Intent(MainActivity.this, ResultActivity.class);
intent.putExtra("selectedOptionQ1", selectedOptionQ1);
intent.putExtra("selectedOptionQ2", selectedOptionQ2);
startActivity(intent);
}
}).setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});

AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
}
}

In this code, I have an AlertDialog with two RadioGroup instances (g1 and g2) containing multiple RadioButton options each. Upon clicking the "Yes" button in the dialog, I want to capture the selected options from both RadioGroups and pass them to another activity using an intent.
The code seems to work fine, but I'm wondering if there's a more efficient or concise way to handle the selection of radio buttons within a RadioGroup in Android. Are there any best practices or alternative methods I should consider for achieving this functionality? Any insights or suggestions would be greatly appreciated!


Источник: https://stackoverflow.com/questions/781 ... up-on-java