RadioButton in Android

ScreenShots:

activity_main.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Select Gender"

        android:textAppearance="?android:attr/textAppearanceLarge" />

    <RadioGroup

        android:id="@+id/radioGroup1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content" 

        android:orientation="horizontal"

        >

        <RadioButton

            android:id="@+id/radio0"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Male" />

        <RadioButton

            android:id="@+id/radio1"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Female" />

      

    </RadioGroup>

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center"

        android:layout_marginTop="30dp"

        android:text="Show Gender" />

</LinearLayout>

MainActivity.java:

package com.ram.radiobuttondemo;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.Toast;

public class MainActivity extends Activity {

RadioGroup rg;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

        rg = (RadioGroup)findViewById(R.id.radioGroup1);

        

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

        

        

        showGender.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View arg0) {

// TODO Auto-generated method stub

int id = rg.getCheckedRadioButtonId();

RadioButton rb = (RadioButton)findViewById(id);

String gender = rb.getText().toString();

Toast.makeText(getApplicationContext(), gender+"Selected", Toast.LENGTH_LONG).show();

}

});

    }

    

}

Android Studio Installation Procedure :-

Required Softwares:

1.JDK 1.6 or Later

2.Android Studio V0.1

you can download above software's from following links:

1.JDK : http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

2.Android Studio : http://developer.android.com/sdk/installing/studio.html

Installation Procedure:

Step1 : Install JDK .

Step2: Install Android Studio ,

•  Procedure: double click on android-studio-bundle-130.677228-windows.exe
• and follow the Android Studio installation guide means(just press next and next and finally finish) .

After running Android Studio you will see following wizard.

Creating new Android Project:

• In the above window choose new project option as follows

• In the next window give your application details.

• And now click Next and again click Next and finally click finish and finally the Android Studio IDE looks like as follows

Radio Button in Android

ScreenShots:

activity_main.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Select Gender"

        android:textAppearance="?android:attr/textAppearanceLarge" />

    <RadioGroup

        android:id="@+id/radioGroup1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content" 

        android:orientation="horizontal"

        >

        <RadioButton

            android:id="@+id/radio0"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Male" />

        <RadioButton

            android:id="@+id/radio1"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="Female" />

      

    </RadioGroup>

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center"

        android:layout_marginTop="30dp"

        android:text="Show Gender" />

</LinearLayout>

MainActivity.java:

package com.ram.radiobuttondemo;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.Toast;

public class MainActivity extends Activity {

RadioGroup rg;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        

        rg = (RadioGroup)findViewById(R.id.radioGroup1);

        

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

        

        

        showGender.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View arg0) {

// TODO Auto-generated method stub

int id = rg.getCheckedRadioButtonId();

RadioButton rb = (RadioButton)findViewById(id);

String gender = rb.getText().toString();

Toast.makeText(getApplicationContext(), gender+"Selected", Toast.LENGTH_LONG).show();

}

});

    }

    

}

CheckBox in Android

ScreenShots:

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".MainActivity" >

    <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_marginLeft="87dp"

        android:layout_marginTop="54dp"

        android:text="CheckBox" />

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true"

        android:text="Show" />

</RelativeLayout>

MainActivity.java:

package com.ram.checkboxdemo;

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.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Toast;

public class MainActivity extends Activity {
CheckBox check;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       
        check = (CheckBox)findViewById(R.id.checkBox1);
       
       /* check.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(CompoundButton arg0, boolean arg1) {
// TODO Auto-generated method stub
if(arg0.isChecked()){
check.setText("Checked");
}else{
check.setText("UnChecked");
}
}
});*/
       
    
        Button showButton = (Button)findViewById(R.id.button1);
       
        showButton.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(check.isChecked()){
Toast.makeText(getApplicationContext(), "Checked", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(getApplicationContext(), "UnChecked", Toast.LENGTH_LONG).show();
}
}
});
    }

   
   
}

Working with Multiple Buttons

Screenshots:

activity_main.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="104dp"
        android:layout_marginTop="20dp"
        android:text="Button1" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button1"
        android:layout_below="@+id/button1"
        android:layout_marginTop="34dp"
        android:text="Button2" />

    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button2"
        android:layout_centerVertical="true"
        android:text="Button3" />

    <Button
        android:id="@+id/button4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button3"
        android:layout_below="@+id/button3"
        android:layout_marginTop="34dp"
        android:text="Button4" />

    <Button
        android:id="@+id/button5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/button4"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="24dp"
        android:text="Button5" />

</RelativeLayout>

MainActivity.java:


package com.ram.workingwithmultiplebuttons;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {
Button b1,b2,b3,b4,b5;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        b1 = (Button)findViewById( R.id.button1);
        b2 = (Button)findViewById(R.id.button2);
        b3 = (Button)findViewById(R.id.button3);
        b4 = (Button)findViewById(R.id.button4);
        b5 = (Button)findViewById(R.id.button5);
     
        
        
        b1.setOnClickListener(this);
        b2.setOnClickListener(this);
        b3.setOnClickListener(this);
        b4.setOnClickListener(this);
        b5.setOnClickListener(this);

    }
@Override
public void onClick(View v) {

switch (v.getId()) {
case R.id.button1:
Toast.makeText(getApplicationContext(), "button1 is working", 3000).show();
break;

case R.id.button2:
Toast.makeText(getApplicationContext(), "button2 is working", 3000).show();
break;

case R.id.button3:
Toast.makeText(getApplicationContext(), "button3 is working", 3000).show();
break;

case R.id.button4:
Toast.makeText(getApplicationContext(), "button4 is working", 3000).show();
break;

case R.id.button5:
Toast.makeText(getApplicationContext(), "button5 is working", 3000).show();
break;
}

}
}