@Override
public void startTransition(
LayoutTransition transition, ViewGroup container, View view, int transitionType) {
if (view.getId() == TkR.id.tablet_back) {
mBackTransitioning = true;
} else if (view.getId() == TkR.id.tablet_home
&& transitionType == LayoutTransition.APPEARING) {
mHomeAppearing = true;
mStartDelay = transition.getStartDelay(transitionType);
mDuration = transition.getDuration(transitionType);
mInterpolator = transition.getInterpolator(transitionType);
}
}
/** Show or hide the laps-list */
private void showLaps() {
if (DEBUG)
Log.v(
LOG_TAG, String.format("StopwatchFragment.showLaps: count=%d", mLapsAdapter.getCount()));
boolean lapsVisible = mLapsAdapter.getCount() > 0;
// Layout change animations will start upon the first add/hide view. Temporarily disable
// the layout transition animation for the spacers, make the changes, then re-enable
// the animation for the add/hide laps-list
if (mSpacersUsed) {
int spacersVisibility = lapsVisible ? View.GONE : View.VISIBLE;
ViewGroup rootView = (ViewGroup) getView();
if (rootView != null) {
rootView.setLayoutTransition(null);
if (mStartSpace != null) {
mStartSpace.setVisibility(spacersVisibility);
}
if (mEndSpace != null) {
mEndSpace.setVisibility(spacersVisibility);
}
rootView.setLayoutTransition(mLayoutTransition);
}
}
if (lapsVisible) {
// There are laps - show the laps-list
// No delay for the CircleButtonsLayout changes - start immediately so that the
// circle has shifted before the laps-list starts appearing.
mCircleLayoutTransition.setStartDelay(LayoutTransition.CHANGING, 0);
mLapsList.setVisibility(View.VISIBLE);
} else {
// There are no laps - hide the laps list
// Delay the CircleButtonsLayout animation until after the laps-list disappears
long startDelay =
mLayoutTransition.getStartDelay(LayoutTransition.DISAPPEARING)
+ mLayoutTransition.getDuration(LayoutTransition.DISAPPEARING);
mCircleLayoutTransition.setStartDelay(LayoutTransition.CHANGING, startDelay);
mLapsList.setVisibility(View.GONE);
}
}