How to add zoom controls for image view
<p>I have to scroll the webview content vertically  with in scrollview surrounded tag ,in the sense that webview hided initially and when touch event occured the webview contained have to visible the scroll control in both  directions but its not scrolling vertically,anybody help me to solve it...
here xml code </p>

<p>
                
                    
                    
+++++++++++++++++++design at initial loading +++++++++++                    
                        
                            
                            </p>

<pre><code>                    &lt;/RelativeLayout&gt;
</code></pre>

<p>++++++++++++++++Design being shown after click event occuered its visible and above part is hided-----------------
                  

<pre><code>                android:layout_width="fill_parent" android:layout_height="fill_parent"
                android:layout_above="@+id/jr_lb_view_preview_gallery"&gt;
                &lt;ProgressBar android:id="@+id/jr_lb_progress_small"
                    android:layout_centerInParent="true" android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:indeterminateDrawable="@drawable/pb" /&gt;
                &lt;WebView android:id="@+id/jr_lb_view_preview_switcher"
                    android:layout_width="fill_parent" android:layout_height="fill_parent"
                    android:scrollbars="none" /&gt;
            &lt;/RelativeLayout&gt;
                &lt;/LinearLayout&gt;


                &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
                    android:layout_width="fill_parent" android:layout_height="wrap_content"
                    android:layout_marginBottom="5dip" android:gravity="center"&gt;
                    &lt;TextView android:layout_width="wrap_content"
                        android:layout_height="wrap_content" android:id="@+id/jr_lb_content_price"
                        android:textSize="12sp" android:textColor="@color/white"
                        android:background="@drawable/black_r_corner" android:typeface="sans" /&gt;
                    &lt;TextView android:layout_width="wrap_content"
                        android:layout_height="wrap_content" android:text="Free Shipping!"
                        android:textSize="12sp" android:textColor="@color/author_color"
                        android:typeface="sans" android:layout_marginLeft="15dip" /&gt;

                &lt;/LinearLayout&gt;
                &lt;View android:layout_width="310dip" android:layout_height="1dip"
                    android:background="#FF909090" /&gt;

                &lt;GridView xmlns:android="http://schemas.android.com/apk/res/android"
                    android:id="@+id/jr_lb_summary_grid" android:layout_width="fill_parent"
                    android:layout_height="wrap_content" android:numColumns="4"
                    android:columnWidth="75dip" android:scrollbars="none"
                    android:gravity="center" android:listSelector="@drawable/corner_orange1"
                    android:layout_marginTop="5dip" /&gt;
                &lt;View android:layout_width="310dip" android:layout_height="1dip"
                    android:background="#FF909090" /&gt;
                &lt;TextView android:layout_width="fill_parent"
                    android:layout_height="wrap_content" android:text="Details"
                    android:textSize="20sp" android:textColor="@color/author_color"
                    android:typeface="sans" /&gt;
                &lt;View android:layout_width="310dip" android:layout_height="1dip"
                    android:background="#FF909090" /&gt;
                &lt;WebView android:id="@+id/jr_lb_content_tv"
                    android:textSize="15sp" android:textColor="@color/black"
                    android:layout_width="fill_parent" android:layout_height="fill_parent" /&gt;
            &lt;/LinearLayout&gt;
        &lt;/ScrollView&gt;
</code></pre>
