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Commit f6d48701 authored by Johannes Gallmann's avatar Johannes Gallmann
Browse files

Disable velocity-slowdown when timestamp API is enabled 

When the timestamp API is enabled, apps should calculate and handle the velocity themselves. Therefore the velocity-slowdown logic is disabled.

if we would keep playing the slow-down, the velocity would always be 0 when apps receive onBackInvoked.

Bug: 362938401
Test: Manual, i.e. verify that velocity-slow down is not played anymore but onBackInvoked is called immediately when the back gesture is released.
Flag: com.android.window.flags.predictive_back_timestamp_api
Change-Id: I426ba2a8294961849f189b21a843e6622b014586
parent e0facd90

core/java/android/window/WindowOnBackInvokedDispatcher.java

+3 −1
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
package android.window;



import static com.android.window.flags.Flags.predictiveBackPrioritySystemNavigationObserver;

import static com.android.window.flags.Flags.predictiveBackTimestampApi;



import android.annotation.NonNull;

import android.annotation.Nullable;
@@ -563,7 +564,8 @@ public class WindowOnBackInvokedDispatcher implements OnBackInvokedDispatcher { 
                }

                OnBackAnimationCallback animationCallback = getBackAnimationCallback();

                if (animationCallback != null

                        && !(callback instanceof ImeBackAnimationController)) {

                        && !(callback instanceof ImeBackAnimationController)

                        && !predictiveBackTimestampApi()) {

                    mProgressAnimator.onBackInvoked(() -> {

                        if (mIsSystemCallback) {

                            mSystemNavigationObserverCallbackRunnable.run();