Working with RadioButton

ScreenShots:

 

 

 

activity_main.xml:
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Developed by Shrikant" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:text="Select Gender:"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <RadioGroup
        android:id="@+id/radioGroup1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView2"
        android:orientation="horizontal" >

        <RadioButton
            android:id="@+id/femaleradio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Female" />

        <RadioButton
            android:id="@+id/maleradio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Male" />
    </RadioGroup>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/radioGroup1"
        android:text="Submit" />

</RelativeLayout>

MainActivity.java:
package com.shrikant.radiobutton;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
RadioGroup rg;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn=(Button)findViewById(R.id.button1);
        rg=(RadioGroup)findViewById(R.id.radioGroup1);
        btn.setOnClickListener(new OnClickListener() {
           
            @Override
            public void onClick(View v) {
                int id=rg.getCheckedRadioButtonId();
                RadioButton rb=(RadioButton)findViewById(id);
               
                String gender=rb.getText().toString();
                Toast.makeText(getApplicationContext(),gender+"Selected", Toast.LENGTH_LONG).show();
               
            }
        });
    }
  
}
 
 

Working with EditText

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" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Developed by Shrikant" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/editText"
        android:layout_marginRight="28dp"
        android:layout_marginTop="15dp"
        android:text="Show TextBox Data" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:text="Enter Your Name:"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <EditText
        android:id="@+id/editText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/textView2"
        android:ems="10"
        android:inputType="textPersonName" />

</RelativeLayout>

MainActivity.java:  package com.example.workingwithedittext;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
    EditText edit;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        edit=(EditText)findViewById(R.id.editText);
        Button btn=(Button)findViewById(R.id.button);
        btn.setOnClickListener(new OnClickListener() {
          
            @Override
            public void onClick(View v) {
            String name=edit.getText().toString();
            Toast.makeText(getApplicationContext(), "Your name is: "+ name, Toast.LENGTH_SHORT).show();
               
            }
        });
    }

}
 

Working With TextView

ScreenShots:

 

 

activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/RelativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Developed by Shrikant" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:layout_marginLeft="24dp"
        android:layout_marginTop="37dp"
        android:text="Click Me" />

    <TextView
        android:id="@+id/viewtxt"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/button"
        android:layout_alignBottom="@+id/button"
        android:layout_marginLeft="14dp"
        android:layout_toRightOf="@+id/textView1"
        android:text="Large Text"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</RelativeLayout> 


MainActivity.java:
package com.shrikant.workingwithtextview;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.view.View.OnClickListener;
public class MainActivity extends Activity {
    TextView txt;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button clickbtn=(Button)findViewById(R.id.button);
        txt=(TextView)findViewById(R.id.viewtxt);
        clickbtn.setOnClickListener(new OnClickListener() {
           
            @Override
            public void onClick(View arg0) {
                txt.setText("Welcome in Android Programming");
               
            }
        });
    }  
}
 

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" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Developed by Shrikant" />

    <Button
        android:id="@+id/fatbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:text="Fat" />

    <Button
        android:id="@+id/catbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/fatbtn"
        android:layout_below="@+id/fatbtn"
        android:layout_marginTop="22dp"
        android:text="Cat" />

    <Button
        android:id="@+id/sadbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/catbtn"
        android:layout_below="@+id/catbtn"
        android:layout_marginTop="27dp"
        android:text="Sad" />

    <Button
        android:id="@+id/ratbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/sadbtn"
        android:layout_below="@+id/sadbtn"
        android:layout_marginTop="16dp"
        android:text="Rat" />

    <Button
        android:id="@+id/matbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/ratbtn"
        android:layout_below="@+id/ratbtn"
        android:layout_marginTop="18dp"
        android:text="Mat" />

</RelativeLayout> 

MainActivity.java: 

 package com.example.workingwithmultiplebutton;
import android.os.Bundle;
import android.app.Activity;
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 btnrat,btncat,btnsad,btnmat,btnfat;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnrat=(Button)findViewById(R.id.ratbtn);
        btncat=(Button)findViewById(R.id.catbtn);
        btnsad=(Button)findViewById(R.id.sadbtn);
        btnmat=(Button)findViewById(R.id.matbtn);
        btnfat=(Button)findViewById(R.id.fatbtn);
      
        btnrat.setOnClickListener(this);
        btncat.setOnClickListener(this);
        btnsad.setOnClickListener(this);
        btnmat.setOnClickListener(this);
        btnfat.setOnClickListener(this);
            
   }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.ratbtn:
            Toast.makeText(getApplicationContext(), "I am Rat", Toast.LENGTH_SHORT).show();
            break;

        case R.id.catbtn:
            Toast.makeText(getApplicationContext(), "I am Cat", Toast.LENGTH_SHORT).show();
            break;
        case R.id.sadbtn:
            Toast.makeText(getApplicationContext(), "I am Sad", Toast.LENGTH_SHORT).show();
            break;
        case R.id.matbtn:
            Toast.makeText(getApplicationContext(), "I am Mat", Toast.LENGTH_SHORT).show();
            break;
        case R.id.fatbtn:
            Toast.makeText(getApplicationContext(), "I am Fat", Toast.LENGTH_SHORT).show();
            break;

        }
      
    }

 }