/** setOrientation */
@Override
public void setOrientation(int orientation) {
if (TosGallery.HORIZONTAL == orientation) {
throw new IllegalArgumentException("The orientation must be VERTICAL");
}
super.setOrientation(orientation);
}
/**
* Called by draw to draw the child views. This may be overridden by derived classes to gain
* control just before its children are drawn (but after its own view has been drawn).
*/
@Override
protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
// After draw child, we do the following things:
// +1, Draw the center rectangle.
// +2, Draw the shadows on the top and bottom.
drawCenterRect(canvas);
drawShadows(canvas);
}
/** Call when the ViewGroup is layout. */
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
int galleryCenter = getCenterOfGallery();
View v = this.getChildAt(0);
int height = (null != v) ? v.getMeasuredHeight() : 50;
int top = galleryCenter - height / 2;
int bottom = top + height;
mSelectorBound.set(getPaddingLeft(), top, getWidth() - getPaddingRight(), bottom);
}
/** @see com.nj1s.lib.widget.TosGallery#setSelectedPositionInt(int) */
@Override
protected void selectionChanged() {
super.selectionChanged();
playSoundEffect(SoundEffectConstants.CLICK);
}