public class SlidingPaneLayout
extends ViewGroup implements Openable

   ↳ android.view.View
     ↳ android.view.ViewGroup
       ↳ androidx.slidingpanelayout.widget.SlidingPaneLayout

SlidingPaneLayout provides a horizontal, multi-pane layout for use at the top level of a UI. A left (or start) pane is treated as a content list or browser, subordinate to a primary detail view for displaying content.

Child views overlap if their combined width exceeds the available width in the SlidingPaneLayout. Each of child views is expand out to fill the available width in the SlidingPaneLayout. When this occurs, the user may slide the topmost view out of the way by dragging it, and dragging back it from the very edge.

Thanks to this sliding behavior, SlidingPaneLayout may be suitable for creating layouts that can smoothly adapt across many different screen sizes, expanding out fully on larger screens and collapsing on smaller screens.

SlidingPaneLayout is distinct from a navigation drawer as described in the design guide and should not be used in the same scenarios. SlidingPaneLayout should be thought of only as a way to allow a two-pane layout normally used on larger screens to adapt to smaller screens in a natural way. The interaction patterns expressed by SlidingPaneLayout imply a physicality and direct information hierarchy between panes that does not necessarily exist in a scenario where a navigation drawer should be used instead.

Appropriate uses of SlidingPaneLayout include pairings of panes such as a contact list and subordinate interactions with those contacts, or an email thread list with the content pane displaying the contents of the selected thread. Inappropriate uses of SlidingPaneLayout include switching between disparate functions of your app, such as jumping from a social stream view to a view of your personal profile - cases such as this should use the navigation drawer pattern instead. (DrawerLayout implements this pattern.)

Like LinearLayout, SlidingPaneLayout supports the use of the layout parameter layout_weight on child views to determine how to divide leftover space after measurement is complete. It is only relevant for width. When views do not overlap weight behaves as it does in a LinearLayout.


Nested classes

class SlidingPaneLayout.LayoutParams


interface SlidingPaneLayout.PanelSlideListener

Listener for monitoring events about sliding panes. 

class SlidingPaneLayout.SimplePanelSlideListener

No-op stubs for SlidingPaneLayout.PanelSlideListener



The user cannot swipe between list and detail panes, though the app can open or close the detail pane programmatically.


The detail pane is locked in a closed position.


The detail pane is locked in an open position.


User can freely swipe between list and detail panes.

Inherited constants

Inherited fields

Public constructors

SlidingPaneLayout(Context context)
SlidingPaneLayout(Context context, AttributeSet attrs)
SlidingPaneLayout(Context context, AttributeSet attrs, int defStyle)

Public methods

void addPanelSlideListener(SlidingPaneLayout.PanelSlideListener listener)

Adds the specified listener to the list of listeners that will be notified of panel slide events.

void addView(View chi