Spinner CheckBox RadioButton and Introduction to RelativeLayout and Toast

To day we will explore some more form stuffs viz.CheckBox, RadioButton and Spinner.
RelativeLayout and Toast will also be introduced.


Form stuff become much important when you move towards enterprise  development.In previous example simple widget textview buttons and edit text were explained but the complete setup of a form requares  lots of widgets like progress bar rating bar switch etc.Gradually we will learn all stuff.

This tutorial website is full focused on enterprise development so we will be less concern about graphics like stuff.



So now you are familiar with project and class set up.
Just put this code in your xml file.


<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=".FormStuffs" >

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Complete The Details:" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView2"
        android:layout_marginTop="16dp"
        android:text="Nationality" />

    <RadioGroup
        android:id="@+id/radioGroup1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/spnNationality"
        android:layout_toRightOf="@+id/textView1"
        android:orientation="horizontal" >

        <RadioButton
            android:id="@+id/radMale"
            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:checked="true"
            android:text="Female" />
    </RadioGroup>

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignTop="@+id/radioGroup1"
        android:text="I am" />

    <Spinner
        android:id="@+id/spnNationality"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/textView1" />

    <CheckBox
        android:id="@+id/cbTerms"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/radioGroup1"
        android:layout_toRightOf="@+id/textView1"
        android:text="Accept Terms and conditions" />

    <Button
        android:id="@+id/bSubmit"
        android:layout_width="150dp"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/cbTerms"
        android:text="Submit" />

    <TextView
        android:id="@+id/tvShow"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/bSubmit"
        android:text="" />

</RelativeLayout>



And in class file copy and paste this code-



package com.thenewtechnoworld.android;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.RadioButton;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

public class FormStuffs extends Activity {
Spinner nationality;
RadioButton iamMale;
CheckBox tnc;
Button submit;
String[] nat = { "Indian", "American", "Other" };
TextView show;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// seting reference to the layout stuffs
setContentView(R.layout.activity_form_stuffs);
nationality = (Spinner) findViewById(R.id.spnNationality);
iamMale = (RadioButton) findViewById(R.id.radMale);
tnc = (CheckBox) findViewById(R.id.cbTerms);
submit = (Button) findViewById(R.id.bSubmit);
show = (TextView) findViewById(R.id.tvShow);

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, nat);
adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
nationality.setAdapter(adapter);

submit.setOnClickListener(new OnClickListener() {

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

String nation = nationality.getSelectedItem().toString();
String sex = iamMale.isChecked() ? "Male" : "Female";
// String accTC=tnc.isChecked()?"accept":"not accept";

if (tnc.isChecked()) {

show.setText("Nationality: " + nation + "\n" + "Sex: "
+ sex);
Toast.makeText(FormStuffs.this, "Successfully submited",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(FormStuffs.this,
"Form cannot be submitted.", Toast.LENGTH_LONG)
.show();
show.setText("Please Fill Mondatory Fields");
}
}

});

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_form_stuffs, menu);
return true;
}

}

When you compile and run on ADV the output will look like--

You can see the toast appearing at the end of the emulator.

Again you can download complete source code here.But you will have to be logged in to facebook.

Thank you for reading this post..