Android Spinner Example

package sample.spin;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.AdapterView.OnItemSelectedListener;

public class SpinnerEx extends Activity implements OnItemSelectedListener {
 
String[] listcontent={"c","java","php","c++","jsp","c#","servlet","struts"

,"c","java","php","c++","jsp","c#","servlet","struts"};

TextView tv;

/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv=(TextView)findViewById(R.id.text);
        Spinner spin=(Spinner)findViewById(R.id.spin_id);
        spin.setOnItemSelectedListener( this);
 ArrayAdapter<String> aa=new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,listcontent);

    aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spin.setAdapter(aa);
    }



public void onItemSelected(AdapterView<?> parent, View v, int position,
long id) {
// TODO Auto-generated method stub

tv.setText(listcontent[position]);

}



public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub

tv.setText("");
}
}


main.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
 
    xmlns:android="http://schemas.android.com/apk/res/android">
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textSize="20dp"
   
    android:id="@+id/text"
    />
    <Spinner
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/spin_id"
    />
</LinearLayout>

Android Flipper Example

Flipper class is used for simply flip the views.

package example.flip;

import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ViewFlipper;

public class FlipperEx extends Activity {
   Button b;
   ViewFlipper flip;
   LinearLayout ll;
/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
       ll=(LinearLayout)findViewById(R.id.l_l);
       
        b=(Button)findViewById(R.id.button2);
        flip=(ViewFlipper)findViewById(R.id.viewFlipper1);

    }

    public void ClickHandler(View v)
    {

    flip.showNext();
     //flip.setFlipInterval(1000);
         // flip.setAutoStart(true);
   // flip.startFlipping();
    b.setGravity(Gravity.BOTTOM);
    ll.setGravity(Gravity.CENTER);
    }
    }

main.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:gravity="top"
    android:id="@+id/l_l">
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />

<EditText android:text="EditText"
android:layout_height="wrap_content"
android:id="@+id/editText1"
 android:layout_width="match_parent"
 android:gravity="right">
 </EditText>
<Button android:text="Button"
android:id="@+id/button2"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:onClick="ClickHandler"
 android:gravity="top">
 </Button>
<ViewFlipper android:layout_width="match_parent"
 android:id="@+id/viewFlipper1"
  android:layout_height="wrap_content">

<TextView
android:text="first text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:text="second text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<TextView
android:text="third text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button android:text="fourth one is button"
android:id="@+id/button1"
 android:layout_width="wrap_content"
  android:layout_height="wrap_content">
  </Button>


</ViewFlipper>
</LinearLayout>

Android Custom Dialog Box Example

create your main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />
<Button android:text="Button"
android:id="@+id/button1"
android:layout_width="fill_parent"
 android:layout_height="wrap_content">
 </Button>
</LinearLayout>


custom.xml


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
   android:orientation="vertical">
    <ImageView android:layout_height="wrap_content"
    android:id="@+id/image"
     android:src="@drawable/bunch"
      android:layout_width="wrap_content">
      </ImageView>
    <TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_toRightOf="@id/image"
    android:id="@+id/text"
    >
    </TextView>
    <Button android:text="Button"
    android:id="@+id/button"
    android:layout_below="@id/image"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
    </Button>
</RelativeLayout>

create your Custom Dialog Activity

package example.custom;

import android.app.Activity;

import android.app.Dialog;

import android.content.Context;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.ImageView;

import android.widget.TextView;

public class DialogExample extends Activity {

    

Context con=this;

Button b1;

/** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

    

    

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

    

    b1.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

// TODO Auto-generated method stub

final Dialog dialog = new Dialog(con);

dialog.setContentView(R.layout.custom);

dialog.setTitle("Title...");

TextView text = (TextView) dialog.findViewById(R.id.text);

text.setText("Android custom dialog example!");

ImageView image = (ImageView) dialog.findViewById(R.id.image);

image.setImageResource(R.drawable.day);

Button b=(Button)dialog.findViewById(R.id.button);

b.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

// TODO Auto-generated method stub

dialog.dismiss();

}

});

dialog.show();

}

});

    

    }

}

Android Grid View Example

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    />
 
 
    <GridView
    android:id="@+id/grid"
    android:columnWidth="100px"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:stretchMode="columnWidth"
    android:gravity="center"
    android:numColumns="auto_fit"
    />

</LinearLayout>

set your Activity........

package adapter.grid;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.GridView;

import android.widget.TextView;

import android.widget.Toast;

import android.widget.AdapterView.OnItemClickListener;

public class GridAdapterEx extends Activity {

    

GridView gv;

String[] listcontent={"c","java","php","c++","jsp","c#","servlet","struts"

 

,"c","java","php","c++","jsp","c#","servlet","struts",

"c","java","php","c++","jsp","c#","servlet","struts"};

/** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        

        gv=(GridView)findViewById(R.id.grid);

        ArrayAdapter<String> adapter

        = new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1,listcontent);

   gv.setOnItemClickListener(new OnItemClickListener() {

public void onItemClick(AdapterView<?> v0, View v1, int v2, long v3) {

// TODO Auto-generated method stub

Toast.makeText(getApplicationContext(),((TextView)v1).getText(),Toast.LENGTH_SHORT).show();

}

   

   

   });

        gv.setAdapter(adapter);

    }

}

Android Simple Login Screen

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  android:background="@drawable/opel">
   
   
   
    <EditText android:text=""
    android:id="@+id/username"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:layout_marginBottom="20dp"
     android:layout_marginLeft="20dp"
      android:layout_marginRight="20dp"
       android:layout_marginTop="50dp"></EditText>
   
    <EditText android:text=""
     android:id="@+id/password"
     android:layout_width="fill_parent"
      android:layout_height="wrap_content" android:layout_marginTop="10dp"
      android:layout_marginRight="20dp"
       android:layout_marginLeft="20dp" android:layout_marginBottom="10dp"></EditText>
     
      <Button android:text="submit"
     android:id="@+id/but"
      android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:layout_marginBottom="10dp"
        android:layout_marginRight="20dp"
         android:layout_marginLeft="20dp"
          android:layout_marginTop="10dp"></Button>
</LinearLayout>