I found the solution after searching for almost a week.
I used PopupWindow Class for the purpose
Following is the Java Code.
PopupWin.java
public class PopupWin extends Activity{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final Button bPopup = (Button)findViewById(R.id.openpopup);
bPopup.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
LayoutInflater layoutInflater
= (LayoutInflater)getBaseContext().getSystemService(LAYOUT_INFLATER_SERVICE);
View popupView = layoutInflater.inflate(R.layout.popup, null);
final PopupWindow popupWindow = new PopupWindow(
popupView,
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT);
Button bDismiss = (Button)popupView.findViewById(R.id.dismiss);
bDismiss.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
popupWindow.dismiss();
}});
popupWindow.showAsDropDown(bPopup, 50, -30);
}});
}
}
popup.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/pop"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/dim_back" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/dim_back"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="20dp"
android:orientation="vertical"
android:layout_gravity="center">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:adjustViewBounds="true"
android:src="@drawable/appetimg01" />
<Button
android:id="@+id/dismiss"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20sp"
android:text="Go Back"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@+id/appetizerDes1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_weight="0.40"
android:text="Tap the Image to view High Resolution Image."/>
<Button
android:id="@+id/openpopup"
android:layout_width="80sp"
android:layout_height="80sp"
android:layout_gravity="right"
android:layout_margin="40sp"
android:background="@drawable/custombutton"
android:scaleType="centerCrop" />
</LinearLayout>
</LinearLayout>
The background was appearing white but I wanted it transparent for which I created back_dim.xml in drawables and set it along with android:background="@drawable/back_dim".