Disable ScrollView Programmatically?

Several points to begin with:

1. You cannot disable the scrolling of a ScrollView. You would need to extend to ScrollView and override the onTouchEvent method to return false when some condition is matched.
2. The Gallery component scrolls horizontally regardless of whether it is in a ScrollView or not - a ScrollView provides only vertical scrolling (you need a HorizontalScrollView for horizontal scrolling)
3. You seem to say you have a problem with the image stretching itself -- this has nothing to do with the ScrollView, you can change how an ImageView scales with the android:scaleType property (XML) or the setScaleType method - for instance ScaleType.CENTER will not stretch your image and will center it at it's original size

You could modify ScrollView as follows to disable scrolling

class LockableScrollView extends ScrollView {    ...    // true if we can scroll (not locked)    // false if we cannot scroll (locked)    private boolean mScrollable = true;    public void setScrollingEnabled(boolean enabled) {        mScrollable = enabled;    }    public boolean isScrollable() {        return mScrollable;    }    @Override    public boolean onTouchEvent(MotionEvent ev) {        switch (ev.getAction()) {            case MotionEvent.ACTION_DOWN:                // if we can scroll pass the event to the superclass                return mScrollable && super.onTouchEvent(ev);            default:                return super.onTouchEvent(ev);        }    }    @Override    public boolean onInterceptTouchEvent(MotionEvent ev) {        // Don't do anything with intercepted touch events if        // we are not scrollable        return mScrollable && super.onInterceptTouchEvent(ev);    }}

You would then use

<com.mypackagename.LockableScrollView     android:id="@+id/QuranGalleryScrollView"     android:layout_height="fill_parent"     android:layout_width="fill_parent">    <Gallery android:id="@+id/Gallery"         android:layout_width="fill_parent"         android:layout_height="fill_parent"        android:scrollbars="horizontal">    </Gallery></com.mypackagename.LockableScrollView>

in your XML file (just changed the ScrollView to your special LockableScrollView).

Then call

((LockableScrollView)findViewById(R.id.QuranGalleryScrollView)).setScrollingEnabled(false);

to disable scrolling of the view.

I think that you have more than just the issue of disabling scrolling though to achieve your desired result (the gallery will remain scrollable with the above code for instance) - I'd recommend doing some more research on each of the three components (Gallery, ScrollView, ImageView) to see what properties each one has and how it behaves.

I had gone this way:

        scrollView.setOnTouchListener(new View.OnTouchListener() {        @Override        public boolean onTouch(View v, MotionEvent event) {            // TODO Auto-generated method stub            return isBlockedScrollView;        }    });

Found this simple solution just set

ScrollView.requestDisallowInterceptTouchEvent(true);