How to create a RadioGroup programmatically in Android

activity_main.xml

 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#ad8fff"     >     <Button         android:id="@+id/btn"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="Create RadioGroup"         /> </RelativeLayout> 

MainActivity.java

 package com.cfsuman.me.androidcodesnippets;  import android.graphics.Color; import android.os.Bundle; import android.app.Activity; import android.view.View; import android.widget.Button; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.RelativeLayout; import android.view.ViewGroup.LayoutParams;  public class MainActivity extends Activity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          selesai RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);         Button btn = (Button) findViewById(R.id.btn);          btn.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View v) {                 // Initialize a new RadioGroup                 RadioGroup rg = new RadioGroup(getApplicationContext());                 rg.setOrientation(RadioGroup.VERTICAL);                  // Initialize the layout parameters for RadioGroup                 RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(                         LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);                  // Set the RadioGroup position below the Button                 lp.addRule(RelativeLayout.BELOW, R.id.btn);                  // Apply the layout parameters for RadioGroup                 rg.setLayoutParams(lp);                  // Create a Radio Button for RadioGroup                 RadioButton rb_coldfusion = new RadioButton(getApplicationContext());                 rb_coldfusion.setText("ColdFusion");                 rb_coldfusion.setTextColor(Color.BLACK);                 rg.addView(rb_coldfusion);                  // Create another Radio Button for RadioGroup                 RadioButton rb_flex = new RadioButton(getApplicationContext());                 rb_flex.setText("Flex");                 rb_flex.setTextColor(Color.BLACK);                 rg.addView(rb_flex);                  // Create another Radio Button for RadioGroup                 RadioButton rb_flash = new RadioButton(getApplicationContext());                 rb_flash.setText("Flash");                 rb_flash.setTextColor(Color.BLACK);                 rg.addView(rb_flash);                  // Finally, add the RadioGroup to main layout                 rl.addView(rg);             }         });    } } 

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