Android CheckBox Example

CHECKBOX


Android checkbox is used to select more than one option at a time.
Example:  In an admission form we may need to select both diploma & BE in Graduate option.
For this we can use checkbox which will enable us to select multiple options.



SOURCE CODE [main.xml] is

<xml version="1.0" encoding="utf-8"?> 
<LinearLayout android:id="@+id/LinearLayout01"
                android:layout_width="fill_parent"

android:layout_height="fill_parent"

                xmlns:android="http://schemas.android.com/apk/res/android"
                android:orientation="vertical">
                <CheckBox android:id="@+id/check1" 

android:layout_width="100px"

                                android:layout_height="wrap_content"

android:text="Android" />

                <CheckBox android:id="@+id/check2"

android:layout_width="100px"

                                android:layout_height="wrap_content"

android:text="iPhone" />

                <Button android:id="@+id/button1"

android:layout_width="100px"

                                android:layout_height="wrap_content"

android:text="Check" />

</LinearLayout>

 

SOURCE CODE [CheckBoxExample.java] is

package com.CheckBoxExample;

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.Toast;

public class CheckBoxExample extends Activity implements OnClickListener
{

Button b1;

CheckBox c1, c2;

Toast msg;

public void onCreate(Bundle icicle)

{

                super.onCreate(icicle);

                setContentView(R.layout.main);

                c1 = (CheckBox) findViewById(R.id.check1);

                c2 = (CheckBox) findViewById(R.id.check2);

                b1 = (Button) findViewById(R.id.button1);

                b1.setOnClickListener(this);

}

public void onClick(View arg0)

{

                // TODO Auto-generated method stub

                if (c1.isChecked()==true && c2.isChecked()==true)

                {

                                msg = Toast.makeText(CheckBoxExample.this,

                                                "Android and Iphone", Toast.LENGTH_SHORT);

                                 msg.show();

                }

                if (c1.isChecked()==true && c2.isChecked()==false)

                                {

                                msg = Toast.makeText(CheckBoxExample.this,

                                                "Android", Toast.LENGTH_SHORT);

                                                 msg.show();
                                }
                                if (c1.isChecked()==false && c2.isChecked()==true)
                                {
                                                msg = Toast.makeText(CheckBoxExample.this,
                                                                "Iphone", Toast.LENGTH_SHORT);
                                                msg.show();
                                }
                                if (c1.isChecked()==false && c2.isChecked()==false)

{

                                                msg = Toast.makeText(CheckBoxExample.this,
                                                                "Nothing Selected", Toast.LENGTH_SHORT);
                                                msg.show();

                }

                }

}


The OUTPUT will be