Click using RadioButton

Question

fragment2_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RadioGroup
        android:id="@+id/G1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal">

        <RadioButton
            android:id="@+id/R1"
            android:layout_width="120dp"
            android:layout_height="wrap_content"
            android:text="By Specialist" />

        <RadioButton
            android:id="@+id/R2"
            android:layout_width="120dp"
            android:layout_height="wrap_content"
            android:text="By Doctor"/>
    </RadioGroup>


</LinearLayout>

Fragment2.java
package com.example.tabbedapp;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.AppCompatButton;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentTransaction;

public class Fragment2 extends Fragment {
    public Fragment2(){

    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment2_layout, container, false);

        Intent intent = new Intent(getActivity(), Specialist.class);
        RadioButton button = (RadioButton) rootView.findViewById(R.id.R1);
        button.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View view) {
                startActivity(intent);
            }
        });
        return rootView;
    }

}

By clicking R1 I need to move to Specialist.class page, clicking R2 I need to move to Doctor.class page. How do I implement the code in java file? I have implemented the above code while clicking the RadioButton, it closes the app. Please Can anyone resolve my problem? Is there any mistake in Intent. enter image description here

Can you share the error message? Also (Button) rootView.findViewById(R.id.R1); You should replace (Button) with RadioButton — gokmenbayram, Oct 18 '21 at 05:42
I have attached the image that shows error. And I have replaced the Button with RadioButton. — Suji, Oct 18 '21 at 06:08
do u have code in your AndroidManifest.xml, that allows your activities? ex. — SWR, Oct 18 '21 at 07:01
your classes Doctor and Specialist extends from Fragment or Activity? — SWR, Oct 18 '21 at 07:22
Probably u have wrong casting, try to change this line: Button button = (Button) rootView.findViewById(R.id.R1); to RadioButton button = (RadioButton) rootView.findViewById(R.id.R1); — SWR, Oct 18 '21 at 07:30
Yes, I got the output. I have changed the Specialist fragment to Specialist Activity. — Suji, Oct 18 '21 at 08:27

Omid Zakeri · Answer 1 · 2021-10-18T06:21:58.323

You can use like this

button.setOnClickListener(new View.OnClickListener(){

        @Override
        public void onClick(View view) {
            Intent intent = new Intent(this,  
            Specialist.class);
        }

Or

final RadioGroup group= (RadioGroup) findViewById(R.id.radioGroupId);
group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
    int id = group.getCheckedRadioButtonId();
    switch (id) {
        case R.id.r1:
            // Your code
            break;
        case R.id.r2:
            // Your code
            break;
        case R.id.r3:
            // Your code
            break;
        case R.id.r4:
            // Your code
            break;
        default:
            // Your code
            break;
    }
}});

This code doesn't work for me. The app is not opening. – Suji Oct 18 '21 at 06:19 — Suji, Oct 18 '21 at 06:19

score 0 · Answer 2 · answered Oct 18 '21 at 07:10

I hope, that your classes like Speacialist and Doctor are Activities, not Fragments, so probably you forgot to register your activities in the manifest.

   <activity
        android:name=".Specialist"/>
   <activity
        android:name=".Doctor"/>

Click using RadioButton

2 Answers2