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Commit 6aac06ab authored by Doris Liu's avatar Doris Liu
Browse files

Add per-interval interpolation support for keyframe in xml resources 

Bug: 19913234
Change-Id: Ie46af02b2db3dad6ace667480aa556e0f645d278
parent b929d658

core/java/android/animation/AnimatorInflater.java

+5 −0
Original line number Diff line number Diff line
@@ -947,6 +947,11 @@ public class AnimatorInflater { 
                    Keyframe.ofInt(fraction);

        }



        final int resID = a.getResourceId(R.styleable.Keyframe_interpolator, 0);

        if (resID > 0) {

            final Interpolator interpolator = AnimationUtils.loadInterpolator(res, theme, resID);

            keyframe.setInterpolator(interpolator);

        }

        a.recycle();



        return keyframe;

core/java/android/animation/ObjectAnimator.java

+4 −2
Original line number Diff line number Diff line
@@ -50,9 +50,11 @@ import java.lang.ref.WeakReference; 
 * value. Alternatively, you can leave the fractions off and the keyframes will be equally

 * distributed within the total duration. Also, a keyframe with no value will derive its value

 * from the target object when the animator starts, just like animators with only one

 * value specified.</p>

 * value specified. In addition, an optional interpolator can be specified. The interpolator will

 * be applied on the interval between the keyframe that the interpolator is set on and the previous

 * keyframe. When no interpolator is supplied, the default linear interpolator will be used. </p>

 *

 * {@sample development/samples/ApiDemos/res/anim/object_animator_pvh_kf.xml KeyframeResources}

 * {@sample development/samples/ApiDemos/res/anim/object_animator_pvh_kf_interpolated.xml KeyframeResources}

 *

 * <div class="special reference">

 * <h3>Developer Guides</h3>

core/res/res/values/attrs.xml

+3 −0
Original line number Diff line number Diff line
@@ -5961,6 +5961,9 @@ 
        <attr name="valueType" />

        <attr name="value" />

        <attr name="fraction" format="float" />

        <!-- Defines a per-interval interpolator for this keyframe. This interpolator will be used

             to interpolate between this keyframe and the previous keyframe.-->

        <attr name="interpolator" />

    </declare-styleable>



    <!-- ========================== -->