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Commit 3966328f authored by Shane's avatar Shane
Browse files

Add flag for APIs that use expected presentation time 

Add a Trunk Stable flag to gate the APIs that use the expected
presentation time.

Bug: 301713352
Test: atest AnimationUtilsTest
Change-Id: Iea31bb48868811e139e813ce195ab59639d45c03
parent b53ca9f0

core/api/current.txt

+2 −2
Original line number Diff line number Diff line
@@ -54455,8 +54455,8 @@ package android.view.animation { 
  public class AnimationUtils {

    ctor public AnimationUtils();

    method public static long currentAnimationTimeMillis();

    method public static long getExpectedPresentationTimeMillis();

    method public static long getExpectedPresentationTimeNanos();

    method @FlaggedApi("android.view.flags.expected_presentation_time_api") public static long getExpectedPresentationTimeMillis();

    method @FlaggedApi("android.view.flags.expected_presentation_time_api") public static long getExpectedPresentationTimeNanos();

    method public static android.view.animation.Animation loadAnimation(android.content.Context, @AnimRes int) throws android.content.res.Resources.NotFoundException;

    method public static android.view.animation.Interpolator loadInterpolator(android.content.Context, @AnimRes @InterpolatorRes int) throws android.content.res.Resources.NotFoundException;

    method public static android.view.animation.LayoutAnimationController loadLayoutAnimation(android.content.Context, @AnimRes int) throws android.content.res.Resources.NotFoundException;

core/java/android/view/animation/AnimationUtils.java

+10 −0
Original line number Diff line number Diff line
@@ -16,7 +16,11 @@ 


package android.view.animation;



import static android.view.flags.Flags.FLAG_EXPECTED_PRESENTATION_TIME_API;

import static android.view.flags.Flags.expectedPresentationTimeApi;



import android.annotation.AnimRes;

import android.annotation.FlaggedApi;

import android.annotation.InterpolatorRes;

import android.annotation.TestApi;

import android.compat.annotation.ChangeId;
@@ -151,7 +155,12 @@ public class AnimationUtils { 
     * @return the expected presentation time of a frame in the

     *         {@link System#nanoTime()} time base.

     */

    @FlaggedApi(FLAG_EXPECTED_PRESENTATION_TIME_API)

    public static long getExpectedPresentationTimeNanos() {

        if (!expectedPresentationTimeApi()) {

            return SystemClock.uptimeMillis();

        }



        AnimationState state = sAnimationState.get();

        return state.mExpectedPresentationTimeNanos;

    }
@@ -164,6 +173,7 @@ public class AnimationUtils { 
     * @return the expected presentation time of a frame in the

     *         {@link SystemClock#uptimeMillis()} time base.

     */

    @FlaggedApi(FLAG_EXPECTED_PRESENTATION_TIME_API)

    public static long getExpectedPresentationTimeMillis() {

        return getExpectedPresentationTimeNanos() / TimeUtils.NANOS_PER_MS;

    }

core/java/android/view/flags/variable_refresh_rate_flags.aconfig

+7 −0
Original line number Diff line number Diff line
@@ -13,3 +13,10 @@ flag { 
    description: "Feature flag for toolkit to set frame rate"

    bug: "293512962"

}



flag {

    name: "expected_presentation_time_api"

    namespace: "toolkit"

    description: "Feature flag for using expected presentation time of the Choreographer"

    bug: "278730197"

}
 
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