Java Code Examples for androidx.fragment.app.Fragment#setSharedElementEnterTransition()

@Override
public boolean onTransition(Context context,
                            FragmentTransaction transaction, Fragment exit, Fragment enter) {
    if (!(enter instanceof GalleryListScene) && !(enter instanceof DownloadsScene) &&
            !(enter instanceof FavoritesScene) && !(enter instanceof HistoryScene)) {
        return false;
    }

    String transitionName = ViewCompat.getTransitionName(mThumb);
    if (transitionName != null) {
        exit.setSharedElementReturnTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        exit.setExitTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        enter.setSharedElementEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        enter.setEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        transaction.addSharedElement(mThumb, transitionName);
    }
    return true;
}
 

@Override
public boolean onTransition(Context context, FragmentTransaction transaction,
        Fragment exit, Fragment enter) {
    if (mThumb == null || !(enter instanceof GalleryDetailScene)) {
        return false;
    }

    String transitionName = ViewCompat.getTransitionName(mThumb);
    if (transitionName != null) {
        exit.setSharedElementReturnTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        exit.setExitTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        enter.setSharedElementEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        enter.setEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        transaction.addSharedElement(mThumb, transitionName);
    }
    return true;
}
 

@Override
public boolean onTransition(Context context,
        FragmentTransaction transaction, Fragment exit, Fragment enter) {
    if (!(enter instanceof GalleryListScene) && !(enter instanceof DownloadsScene) &&
            !(enter instanceof FavoritesScene) && !(enter instanceof HistoryScene)) {
        return false;
    }

    String transitionName = ViewCompat.getTransitionName(mThumb);
    if (transitionName != null) {
        exit.setSharedElementReturnTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        exit.setExitTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        enter.setSharedElementEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        enter.setEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        transaction.addSharedElement(mThumb, transitionName);
    }
    return true;
}
 

@Override
public boolean onTransition(Context context, FragmentTransaction transaction,
        Fragment exit, Fragment enter) {
    if (mThumb == null || !(enter instanceof GalleryDetailScene)) {
        return false;
    }

    String transitionName = ViewCompat.getTransitionName(mThumb);
    if (transitionName != null) {
        exit.setSharedElementReturnTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        exit.setExitTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        enter.setSharedElementEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_move));
        enter.setEnterTransition(
                TransitionInflater.from(context).inflateTransition(R.transition.trans_fade));
        transaction.addSharedElement(mThumb, transitionName);
    }
    return true;
}
 

@Override
public void applyBeforeFragmentTransactionExecuted(@NonNull FragmentTransaction transaction, @NonNull Fragment enteringFragment, @NonNull Fragment exitingFragment) {
	enteringFragment.setEnterTransition(mEnterTransition);
	exitingFragment.setExitTransition(mExitTransition);
	enteringFragment.setSharedElementEnterTransition(mSharedElementTransition);
	enteringFragment.setAllowEnterTransitionOverlap(mAllowEnterTransitionOverlap);
	if (mSharedElements != null) {
		for (Pair<View, String> sharedElement : mSharedElements) {
			transaction.addSharedElement(sharedElement.first, sharedElement.second);
		}
	}
}
 

@Override
public void applyAfterFragmentTransactionExecuted(@NonNull Fragment enteringFragment, @NonNull Fragment exitingFragment) {
	enteringFragment.setEnterTransition(null);
	exitingFragment.setExitTransition(null);
	enteringFragment.setSharedElementEnterTransition(null);
	enteringFragment.setAllowEnterTransitionOverlap(true);
}
 

private void configureTransitions(Fragment fragment) {
  // For all 3 container layer colors, use colorSurface since this transform can be configured
  // using any fade mode and some of the start views don't have a background and the end view
  // doesn't have a background.
  int colorSurface = MaterialColors.getColor(requireView(), R.attr.colorSurface);

  MaterialContainerTransform enterContainerTransform = buildContainerTransform(true);
  enterContainerTransform.setAllContainerColors(colorSurface);
  fragment.setSharedElementEnterTransition(enterContainerTransform);
  holdTransition.setDuration(enterContainerTransform.getDuration());

  MaterialContainerTransform returnContainerTransform = buildContainerTransform(false);
  returnContainerTransform.setAllContainerColors(colorSurface);
  fragment.setSharedElementReturnTransition(returnContainerTransform);
}
 

/**
 * Sets up the transition for the entering fragment
 * @param fragmentTransaction
 * @param fragment entering fragment
 * @param sharedElement must have the transition name set
 */
@TargetApi(21)
public void setupEnterTransition(Context context,
                                 FragmentTransaction fragmentTransaction,
                                 final Fragment fragment,
                                 View sharedElement) {
    if (!(fragment instanceof SharedElement)) {
        LogUtils.LOGD(TAG, "Enter transition fragment must implement SharedElement interface");
        return;
    }

    androidx.core.app.SharedElementCallback seCallback = new androidx.core.app.SharedElementCallback() {
        @Override
        public void onMapSharedElements(List<String> names, Map<String, View> sharedElements) {
            // On returning, onMapSharedElements for the exiting fragment is called before the onMapSharedElements
            // for the reentering fragment. We use this to determine if we are returning and if
            // we should clear the shared element lists. Note that, clearing must be done in the reentering fragment
            // as this is called last. Otherwise, the app will crash during transition setup. Not sure, but might
            // be a v4 support package bug.
            if (fragment.isVisible() && (!((SharedElement) fragment).isSharedElementVisible())) {
                // shared element not visible
                clearSharedElements = true;
            }
        }
    };
    fragment.setEnterSharedElementCallback(seCallback);

    fragment.setEnterTransition(TransitionInflater
                                        .from(context)
                                        .inflateTransition(R.transition.media_details));
    fragment.setReturnTransition(null);

    Transition changeImageTransition = TransitionInflater.from(
            context).inflateTransition(R.transition.change_image);
    fragment.setSharedElementReturnTransition(changeImageTransition);
    fragment.setSharedElementEnterTransition(changeImageTransition);

    fragmentTransaction.addSharedElement(sharedElement, sharedElement.getTransitionName());
}
 

private void finishScene(String tag, TransitionHelper transitionHelper) {
    FragmentManager fragmentManager = getSupportFragmentManager();

    // Get scene
    Fragment scene = fragmentManager.findFragmentByTag(tag);
    if (scene == null) {
        Log.e(TAG, "finishScene: Can't find scene by tag: " + tag);
        return;
    }

    // Get scene index
    int index = mSceneTagList.indexOf(tag);
    if (index < 0) {
        Log.e(TAG, "finishScene: Can't find the tag in tag list: " + tag);
        return;
    }

    if (mSceneTagList.size() == 1) {
        // It is the last fragment, finish Activity now
        Log.i(TAG, "finishScene: It is the last scene, finish activity now");
        finish();
        return;
    }

    Fragment next = null;
    if (index == mSceneTagList.size() - 1) {
        // It is first fragment, show the next one
        next = fragmentManager.findFragmentByTag(mSceneTagList.get(index - 1));
    }

    FragmentTransaction transaction = fragmentManager.beginTransaction();
    if (next != null) {
        if (transitionHelper == null || !transitionHelper.onTransition(
                this, transaction, scene, next)) {
            // Clear shared item
            scene.setSharedElementEnterTransition(null);
            scene.setSharedElementReturnTransition(null);
            scene.setEnterTransition(null);
            scene.setExitTransition(null);
            next.setSharedElementEnterTransition(null);
            next.setSharedElementReturnTransition(null);
            next.setEnterTransition(null);
            next.setExitTransition(null);
            // Do not show animate if it is not the first fragment
            transaction.setCustomAnimations(R.anim.scene_close_enter, R.anim.scene_close_exit);
        }
        // Attach fragment
        transaction.attach(next);
    }
    transaction.remove(scene);
    transaction.commitAllowingStateLoss();
    onTransactScene();

    // Remove tag
    mSceneTagList.remove(index);

    // Return result
    if (scene instanceof SceneFragment) {
        ((SceneFragment) scene).returnResult(this);
    }
}
 

public static void startFragmentInternal(
    FragmentActivity activity,
    Fragment fragment,
    String tag,
    @Nullable View sharedElement,
    @Nullable String sharedElementName,
    @Nullable ContainerTransformConfiguration containerTransformConfiguration) {
  FragmentTransaction transaction = activity.getSupportFragmentManager().beginTransaction();

  if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP
      && sharedElement != null
      && sharedElementName != null) {
    Fragment currentFragment = getCurrentFragment(activity);
    Hold hold = new Hold();
    // Add root view as target for the Hold so that the entire view hierarchy is held in place as
    // one instead of each child view individually. Helps keep shadows during the transition.
    hold.addTarget(currentFragment.getView());
    currentFragment.setExitTransition(hold);

    MaterialContainerTransform transform = new MaterialContainerTransform();
    if (containerTransformConfiguration != null
        && containerTransformConfiguration.isArcMotionEnabled()) {
      transform.setPathMotion(new MaterialArcMotion());
    }
    transform.setContainerColor(MaterialColors.getColor(sharedElement, R.attr.colorSurface));
    transform.setFadeMode(MaterialContainerTransform.FADE_MODE_THROUGH);
    fragment.setSharedElementEnterTransition(transform);
    transaction.addSharedElement(sharedElement, sharedElementName);

    if (fragment.getArguments() == null) {
      Bundle args = new Bundle();
      args.putString(ARG_TRANSITION_NAME, sharedElementName);
      fragment.setArguments(args);
    } else {
      fragment.getArguments().putString(ARG_TRANSITION_NAME, sharedElementName);
    }
  } else {
    transaction.setCustomAnimations(
        R.anim.abc_grow_fade_in_from_bottom,
        R.anim.abc_fade_out,
        R.anim.abc_fade_in,
        R.anim.abc_shrink_fade_out_from_bottom);
  }

  transaction
      .replace(MAIN_ACTIVITY_FRAGMENT_CONTAINER_ID, fragment, tag)
      .addToBackStack(null /* name */)
      .commit();
}
 

private void finishScene(String tag, TransitionHelper transitionHelper) {
    FragmentManager fragmentManager = getSupportFragmentManager();

    // Get scene
    Fragment scene = fragmentManager.findFragmentByTag(tag);
    if (scene == null) {
        Log.e(TAG, "finishScene: Can't find scene by tag: " + tag);
        return;
    }

    // Get scene index
    int index = mSceneTagList.indexOf(tag);
    if (index < 0) {
        Log.e(TAG, "finishScene: Can't find the tag in tag list: " + tag);
        return;
    }

    if (mSceneTagList.size() == 1) {
        // It is the last fragment, finish Activity now
        Log.i(TAG, "finishScene: It is the last scene, finish activity now");
        finish();
        return;
    }

    Fragment next = null;
    if (index == mSceneTagList.size() - 1) {
        // It is first fragment, show the next one
        next = fragmentManager.findFragmentByTag(mSceneTagList.get(index - 1));
    }

    FragmentTransaction transaction = fragmentManager.beginTransaction();
    if (next != null) {
        if (transitionHelper == null || !transitionHelper.onTransition(
                this, transaction, scene, next)) {
            // Clear shared item
            scene.setSharedElementEnterTransition(null);
            scene.setSharedElementReturnTransition(null);
            scene.setEnterTransition(null);
            scene.setExitTransition(null);
            next.setSharedElementEnterTransition(null);
            next.setSharedElementReturnTransition(null);
            next.setEnterTransition(null);
            next.setExitTransition(null);
            // Do not show animate if it is not the first fragment
            transaction.setCustomAnimations(R.anim.scene_close_enter, R.anim.scene_close_exit);
        }
        // Attach fragment
        transaction.attach(next);
    }
    transaction.remove(scene);
    transaction.commitAllowingStateLoss();
    onTransactScene();

    // Remove tag
    mSceneTagList.remove(index);

    // Return result
    if (scene instanceof SceneFragment) {
        ((SceneFragment) scene).returnResult(this);
    }
}