@Override
protected void dispatchDraw(Canvas canvas) {
if (mPageCount < 1) {
return;
}
boolean needsInvalidate = false;
if (!mScroller.isFinished() && mScroller.computeScrollOffset()) {
mFlipDistance = mScroller.getCurrY();
needsInvalidate = true;
}
if (mIsFlipping || !mScroller.isFinished() || mPeakAnim != null) {
drawPreviousHalf(canvas);
drawNextHalf(canvas);
drawFlippingHalf(canvas);
} else {
endScroll();
final int currentPage = getCurrentPageFloor();
if (mCurrentPage != currentPage) {
postRemoveView(getChildAt(0));
}
final View v = viewForPage(currentPage);
if (mCurrentPage != currentPage) {
postAddView(v);
postFlippedToPage(currentPage);
mCurrentPage = currentPage;
mCurrentPageId = mAdapter.getItemId(mCurrentPage);
}
setDrawWithLayer(v, false);
v.draw(canvas);
}
// if overflip is GLOW mode and the edge effects needed drawing, make
// sure to invalidate
needsInvalidate |= mOverFlipper.draw(canvas);
if (needsInvalidate) {
// always invalidate whole screen as it is needed 99% of the time.
// This is because of the shadows and shines put on the non-flipping
// pages
invalidate();
}
}
