44 lines
1.5 KiB
Java
44 lines
1.5 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.wm;
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import android.view.animation.AccelerateInterpolator;
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import android.view.animation.Animation;
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import android.view.animation.Transformation;
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/**
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* Animation that fade in after 0.5 interpolate time, or fade out in reverse order.
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* This is used for opening/closing transition for apps in compatible mode.
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*/
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class FadeInOutAnimation extends Animation {
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boolean mFadeIn;
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public FadeInOutAnimation(boolean fadeIn) {
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setInterpolator(new AccelerateInterpolator());
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setDuration(WindowManagerService.DEFAULT_FADE_IN_OUT_DURATION);
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mFadeIn = fadeIn;
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}
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@Override
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protected void applyTransformation(float interpolatedTime, Transformation t) {
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float x = interpolatedTime;
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if (!mFadeIn) {
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x = 1.0f - x; // reverse the interpolation for fade out
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}
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t.setAlpha(x);
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}
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} |