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Posted by Jack - - 4 comments


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

https://lh5.googleusercontent.com/_xnrF0YSUul8/TWYzJnWo1II/AAAAAAAAACc/ZyoXm6hd3xg/check_box_1.png https://lh6.googleusercontent.com/_xnrF0YSUul8/TWYzJi19ccI/AAAAAAAAACg/-hkJR62MUYw/check_box_2.png
 

4 Responses so far.

  1. Shalu says:

    It was very helpful for me.Thank you very much.

  2. simplest and awesome...

  3. bacbim says:

    I very like to learn at this site.site is very wonderful and useful.

  4. This comment has been removed by the author.

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