private void handleToolbarVisibility(final boolean show) {
final AppBarLayout appBarLayout = (AppBarLayout) mToolbar.getParent();
final CoordinatorLayout rootLayout = (CoordinatorLayout) appBarLayout.getParent();
final CoordinatorLayout.LayoutParams params =
(CoordinatorLayout.LayoutParams) appBarLayout.getLayoutParams();
final AppBarLayout.Behavior behavior = (AppBarLayout.Behavior) params.getBehavior();
if (show) {
// Show appBar
behavior.setTopAndBottomOffset(0);
behavior.onNestedPreScroll(rootLayout, appBarLayout, null, 0, 1, new int[2]);
} else {
// Hide appBar
behavior.onNestedFling(rootLayout, appBarLayout, null, 0, 10000, true);
}
}
private MaterialViewPagerHeader(Toolbar toolbar) {
this.toolbar = toolbar;
this.context = toolbar.getContext();
this.toolbarLayout = (View) toolbar.getParent();
}