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/*
* 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.launcher3.anim;
import static com.android.launcher3.compat.AccessibilityManagerCompat.isAccessibilityEnabled;
import android.animation.Animator;
import android.animation.ObjectAnimator;
import android.animation.TimeInterpolator;
import android.util.Property;
import android.view.View;
/**
* Utility class for setting a property with or without animation
*/
public class PropertySetter {
public static final PropertySetter NO_ANIM_PROPERTY_SETTER = new PropertySetter();
public void setViewAlpha(View view, float alpha, TimeInterpolator interpolator) {
view.setAlpha(alpha);
AlphaUpdateListener.updateVisibility(view, isAccessibilityEnabled(view.getContext()));
}
public <T> void setFloat(T target, Property<T, Float> property, float value,
TimeInterpolator interpolator) {
property.set(target, value);
}
public <T> void setInt(T target, Property<T, Integer> property, int value,
TimeInterpolator interpolator) {
property.set(target, value);
}
public static class AnimatedPropertySetter extends PropertySetter {
private final long mDuration;
private final AnimatorSetBuilder mStateAnimator;
public AnimatedPropertySetter(long duration, AnimatorSetBuilder builder) {
mDuration = duration;
mStateAnimator = builder;
}
@Override
public void setViewAlpha(View view, float alpha, TimeInterpolator interpolator) {
if (view.getAlpha() == alpha) {
return;
}
ObjectAnimator anim = ObjectAnimator.ofFloat(view, View.ALPHA, alpha);
anim.addListener(new AlphaUpdateListener(
view, isAccessibilityEnabled(view.getContext())));
anim.setDuration(mDuration).setInterpolator(interpolator);
mStateAnimator.play(anim);
}
@Override
public <T> void setFloat(T target, Property<T, Float> property, float value,
TimeInterpolator interpolator) {
if (property.get(target) == value) {
return;
}
Animator anim = ObjectAnimator.ofFloat(target, property, value);
anim.setDuration(mDuration).setInterpolator(interpolator);
mStateAnimator.play(anim);
}
@Override
public <T> void setInt(T target, Property<T, Integer> property, int value,
TimeInterpolator interpolator) {
if (property.get(target) == value) {
return;
}
Animator anim = ObjectAnimator.ofInt(target, property, value);
anim.setDuration(mDuration).setInterpolator(interpolator);
mStateAnimator.play(anim);
}
}
}
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