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Commit 4eeb2798 authored by Mady Mellor's avatar Mady Mellor
Browse files

Add a listener for when the illustration animation view is bound 

This allows users of the IllustrationPreference to update the
colors in the animation view more easily.

Bug: 243902048
Test: IllustrationPreferenceTest
Change-Id: Iaeef38005c081f13a8517e18ef53460a164509a2
parent db096dc1

packages/SettingsLib/IllustrationPreference/src/com/android/settingslib/widget/IllustrationPreference.java

+23 −0
Original line number Diff line number Diff line
@@ -59,6 +59,18 @@ public class IllustrationPreference extends Preference { 
    private Uri mImageUri;

    private Drawable mImageDrawable;

    private View mMiddleGroundView;

    private OnBindListener mOnBindListener;



    /**

     * Interface to listen in on when {@link #onBindViewHolder(PreferenceViewHolder)} occurs.

     */

    public interface OnBindListener {

        /**

         * Called when when {@link #onBindViewHolder(PreferenceViewHolder)} occurs.

         * @param animationView the animation view for this preference.

         */

        void onBind(LottieAnimationView animationView);

    }



    private final Animatable2.AnimationCallback mAnimationCallback =

            new Animatable2.AnimationCallback() {
@@ -133,6 +145,17 @@ public class IllustrationPreference extends Preference { 
        if (IS_ENABLED_LOTTIE_ADAPTIVE_COLOR) {

            ColorUtils.applyDynamicColors(getContext(), illustrationView);

        }



        if (mOnBindListener != null) {

            mOnBindListener.onBind(illustrationView);

        }

    }



    /**

     * Sets a listener to be notified when the views are binded.

     */

    public void setOnBindListener(OnBindListener listener) {

        mOnBindListener = listener;

    }



    /**

packages/SettingsLib/tests/robotests/src/com/android/settingslib/widget/IllustrationPreferenceTest.java

+29 −0
Original line number Diff line number Diff line
@@ -61,6 +61,8 @@ public class IllustrationPreferenceTest { 
    private PreferenceViewHolder mViewHolder;

    private FrameLayout mMiddleGroundLayout;

    private final Context mContext = ApplicationProvider.getApplicationContext();

    private IllustrationPreference.OnBindListener mOnBindListener;

    private LottieAnimationView mOnBindListenerAnimationView;



    @Before

    public void setUp() {
@@ -82,6 +84,12 @@ public class IllustrationPreferenceTest { 


        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();

        mPreference = new IllustrationPreference(mContext, attributeSet);

        mOnBindListener = new IllustrationPreference.OnBindListener() {

            @Override

            public void onBind(LottieAnimationView animationView) {

                mOnBindListenerAnimationView = animationView;

            }

        };

    }



    @Test
@@ -186,4 +194,25 @@ public class IllustrationPreferenceTest { 
        assertThat(mBackgroundView.getMaxHeight()).isEqualTo(restrictedHeight);

        assertThat(mAnimationView.getMaxHeight()).isEqualTo(restrictedHeight);

    }



    @Test

    public void setOnBindListener_isNotified() {

        mOnBindListenerAnimationView = null;

        mPreference.setOnBindListener(mOnBindListener);



        mPreference.onBindViewHolder(mViewHolder);



        assertThat(mOnBindListenerAnimationView).isNotNull();

        assertThat(mOnBindListenerAnimationView).isEqualTo(mAnimationView);

    }



    @Test

    public void setOnBindListener_notNotified() {

        mOnBindListenerAnimationView = null;

        mPreference.setOnBindListener(null);



        mPreference.onBindViewHolder(mViewHolder);



        assertThat(mOnBindListenerAnimationView).isNull();

    }

}