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Commit 85a15499 authored by Arthur Hung's avatar Arthur Hung
Browse files

Clarify unbuffered dispatch may fail before attached to window 

Add the docs to to clarify that prior to Android U, the call to
`View::requestUnbufferedDispatch` will fail if the View is not
attached to window.

Bug: 268105812
Test: manual
Change-Id: Ic57ac42447750129a80f6aa71710963ae4594ce0
parent 0a19aaae

core/java/android/view/View.java

+3 −0
Original line number Diff line number Diff line
@@ -17167,6 +17167,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback, 
     * This is similar to {@link View#requestUnbufferedDispatch(MotionEvent)}, but does not

     * automatically terminate, and allows the specification of arbitrary input source classes.

     *

     * <p>Prior to {@link android.os.Build.VERSION_CODES#UPSIDE_DOWN_CAKE}, this method will fail

     * when this View is not attached to a window.

     *

     * @param source The combined input source class to request unbuffered dispatch for. All

     *               events coming from these source classes will not be buffered. Set to

     *               {@link InputDevice#SOURCE_CLASS_NONE} in order to return to default behaviour.