RadioGroup Control

Example-How to used RadioButton Control in android?

In this blog explain how to used RadioGroup in android. the Radiogroup is a radio button control, the control check which button is checked then previous button is automatic Uncheck with same group.

activity_main.xml

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<?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"    

android:background="#ffffff"     >
   

 <ImageView            

android:layout_width="wrap_content"            

android:layout_height="wrap_content"           

 android:id="@+id/imageView"            

android:layout_gravity="center"            

android:src="@drawable/my_heder_img"></ImageView>

    

<RadioGroup        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:layout_marginTop="40dp"        

android:id="@+id/control"       

android:layout_gravity="center_vertical">

<RadioButton        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:text="Lion"       

 android:id="@+id/radioButton"        />

<RadioButton        

android:layout_width="wrap_content"       

 android:layout_height="wrap_content"       

 android:text="Tigger"        

android:id="@+id/radioButton2"         />

<RadioButton       

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:text="Leopard"        

android:id="@+id/radioButton3"         />

<RadioButton        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:text="Zabra"        

android:id="@+id/radioButton4"        />

<RadioButton        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:text="Bear"        

android:id="@+id/radioButton5"        />
</RadioGroup>

<Button        

android:layout_width="wrap_content"        

android:layout_height="wrap_content"        

android:text="Select Animal Name"        

android:id="@+id/button"        

android:layout_marginTop="30dp"        

android:layout_gravity="center"/>


</LinearLayout>

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MainActivity.java

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public class MainActivity extends Activity  {
    private RadioGroup radioSexGroup;
    private RadioButton radioSexButton;
    private Button btnDisplay;

    @Override    public void onCreate(Bundle bundle) {
        super.onCreate(bundle);
        setContentView(R.layout.activity_main);

        radioSexGroup=(RadioGroup)findViewById(R.id.control);

        btnDisplay=(Button)findViewById(R.id.button);

        btnDisplay.setOnClickListener(new View.OnClickListener() {
            @Override            public void onClick(View v) {
                int selectedId=radioSexGroup.getCheckedRadioButtonId();
                radioSexButton=(RadioButton)findViewById(selectedId);
                Toast.makeText(MainActivity.this,radioSexButton.getText(),Toast.LENGTH_SHORT).show();
            }
        });

    }
}

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