| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License |
| */ |
| |
| package com.android.systemui.statusbar.notification; |
| |
| import android.graphics.drawable.Icon; |
| import android.util.Pools; |
| import android.view.View; |
| import android.widget.ImageView; |
| |
| import com.android.systemui.Interpolators; |
| import com.android.systemui.R; |
| import com.android.systemui.statusbar.CrossFadeHelper; |
| import com.android.systemui.statusbar.TransformableView; |
| import com.android.systemui.statusbar.stack.StackStateAnimator; |
| |
| /** |
| * A transform state of a image view. |
| */ |
| public class ImageTransformState extends TransformState { |
| public static final long ANIMATION_DURATION_LENGTH = 210; |
| |
| public static final int ICON_TAG = R.id.image_icon_tag; |
| private static Pools.SimplePool<ImageTransformState> sInstancePool |
| = new Pools.SimplePool<>(40); |
| private Icon mIcon; |
| |
| @Override |
| public void initFrom(View view, TransformInfo transformInfo) { |
| super.initFrom(view, transformInfo); |
| if (view instanceof ImageView) { |
| mIcon = (Icon) view.getTag(ICON_TAG); |
| } |
| } |
| |
| @Override |
| protected boolean sameAs(TransformState otherState) { |
| if (super.sameAs(otherState)) { |
| return true; |
| } |
| if (otherState instanceof ImageTransformState) { |
| return mIcon != null && mIcon.sameAs(((ImageTransformState) otherState).getIcon()); |
| } |
| return false; |
| } |
| |
| @Override |
| public void appear(float transformationAmount, TransformableView otherView) { |
| if (otherView instanceof HybridNotificationView) { |
| if (transformationAmount == 0.0f) { |
| mTransformedView.setPivotY(0); |
| mTransformedView.setPivotX(mTransformedView.getWidth() / 2); |
| prepareFadeIn(); |
| } |
| transformationAmount = mapToDuration(transformationAmount); |
| CrossFadeHelper.fadeIn(mTransformedView, transformationAmount, false /* remap */); |
| transformationAmount = Interpolators.LINEAR_OUT_SLOW_IN.getInterpolation( |
| transformationAmount); |
| mTransformedView.setScaleX(transformationAmount); |
| mTransformedView.setScaleY(transformationAmount); |
| } else { |
| super.appear(transformationAmount, otherView); |
| } |
| } |
| |
| @Override |
| public void disappear(float transformationAmount, TransformableView otherView) { |
| if (otherView instanceof HybridNotificationView) { |
| if (transformationAmount == 0.0f) { |
| mTransformedView.setPivotY(0); |
| mTransformedView.setPivotX(mTransformedView.getWidth() / 2); |
| } |
| transformationAmount = mapToDuration(1.0f - transformationAmount); |
| CrossFadeHelper.fadeOut(mTransformedView, 1.0f - transformationAmount, |
| false /* remap */); |
| transformationAmount = Interpolators.LINEAR_OUT_SLOW_IN.getInterpolation( |
| transformationAmount); |
| mTransformedView.setScaleX(transformationAmount); |
| mTransformedView.setScaleY(transformationAmount); |
| } else { |
| super.disappear(transformationAmount, otherView); |
| } |
| } |
| |
| private static float mapToDuration(float scaleAmount) { |
| // Assuming a linear interpolator, we can easily map it to our new duration |
| scaleAmount = (scaleAmount * StackStateAnimator.ANIMATION_DURATION_STANDARD |
| - (StackStateAnimator.ANIMATION_DURATION_STANDARD - ANIMATION_DURATION_LENGTH)) |
| / ANIMATION_DURATION_LENGTH; |
| return Math.max(Math.min(scaleAmount, 1.0f), 0.0f); |
| } |
| |
| public Icon getIcon() { |
| return mIcon; |
| } |
| |
| public static ImageTransformState obtain() { |
| ImageTransformState instance = sInstancePool.acquire(); |
| if (instance != null) { |
| return instance; |
| } |
| return new ImageTransformState(); |
| } |
| |
| @Override |
| protected boolean transformScale(TransformState otherState) { |
| return true; |
| } |
| |
| @Override |
| public void recycle() { |
| super.recycle(); |
| sInstancePool.release(this); |
| } |
| |
| @Override |
| protected void reset() { |
| super.reset(); |
| mIcon = null; |
| } |
| } |