| package android.support.v4.app; |
| |
| import android.support.annotation.IdRes; |
| import android.support.annotation.Nullable; |
| import android.view.View; |
| |
| |
| /** |
| * Callbacks to a {@link Fragment}'s container. |
| */ |
| public abstract class FragmentContainer { |
| /** |
| * Return the view with the given resource ID. May return {@code null} if the |
| * view is not a child of this container. |
| */ |
| @Nullable |
| public abstract View findViewById(@IdRes int id); |
| |
| /** |
| * Return {@code true} if the container holds any view. |
| */ |
| public abstract boolean hasView(); |
| } |
