FragmentUtils.java 文件源码

/**
 * Inflates a desired TransitionManager from the specified <var>resource</var>.
 *
 * @param context   Context used for inflation process.
 * @param resource  Resource id of the desired transition manager to inflate.
 * @param sceneRoot Root of the scene for which to inflate transition manager.
 * @return Inflated transition manager or {@code null} if the current API level does not support
 * transitions.
 * @see TransitionInflater#inflateTransitionManager(int, ViewGroup)
 * @see #inflateTransition(Context, int)
 */
@Nullable
@SuppressLint("NewApi")
public static TransitionManager inflateTransitionManager(@NonNull final Context context, @TransitionRes final int resource, @NonNull final ViewGroup sceneRoot) {
    return FragmentPolicies.TRANSITIONS_SUPPORTED ? TransitionInflater.from(context).inflateTransitionManager(resource, sceneRoot) : null;
}