CHECK BOX ANDROID TUTORIAL

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Check Box Android Tutorial

You can select check box and show toast message selected check box.

First Create main.xml file


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    tools:context=".ChechboxActivity" >

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="40dp"
        android:text="A" />

    <CheckBox
        android:id="@+id/checkBox2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/checkBox1"
        android:layout_alignBottom="@+id/checkBox1"
        android:layout_alignParentRight="true"
        android:layout_marginRight="32dp"
        android:text="C" />

    <CheckBox
        android:id="@+id/checkBox3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/checkBox1"
        android:layout_marginTop="32dp"
        android:text="B" />

    <CheckBox
        android:id="@+id/checkBox4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/checkBox3"
        android:layout_alignBottom="@+id/checkBox3"
        android:layout_alignLeft="@+id/checkBox2"
        android:text="D" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/checkBox4"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="96dp"
        android:text="Button" />

</RelativeLayout>

After Create Java file

package pack.chech;



import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;

public class ChechboxActivity extends Activity implements  OnClickListener {
    /** Called when the activity is first created. */
CheckBox c,c1,c2,c3;
RadioButton r;
RadioGroup rg;
//TextView t,t1;
//EditText e,e1;
//RatingBar r;
Button b;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        c = (CheckBox)findViewById(R.id.checkBox1);
        c1 = (CheckBox)findViewById(R.id.checkBox2);
       // c2 = (CheckBox)findViewById(R.id.checkBox3);
        //c3 = (CheckBox)findViewById(R.id.checkBox4);
       /* t = (TextView)findViewById(R.id.textView1);
        t1 = (TextView)findViewById(R.id.textView2);
    
        e = (EditText)findViewById(R.id.editText1);
        e1 = (EditText)findViewById(R.id.editText2);*/
        rg = (RadioGroup)findViewById(R.id.radioGroup1);
       
       b = (Button)findViewById(R.id.button1);
    
        b.setOnClickListener(this);
    
    }

public void onClick(View arg0) {
// TODO Auto-generated method stub

int id = rg.getCheckedRadioButtonId();
r = (RadioButton)findViewById(id);
Toast.makeText(this, r.getText().toString(), 2000).show();

if(c.isChecked())
{
Toast.makeText(this, c.getText().toString(), 2000).show();

}

if(c1.isChecked())
{
Toast.makeText(this, c1.getText().toString(), 2000).show();

}
}

    

}

OUTPUT :

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