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/*
* Copyright (C) 2012 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;
import android.animation.Animator;
import android.animation.Animator.AnimatorListener;
import android.animation.AnimatorListenerAdapter;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.util.FloatProperty;
import android.util.IntProperty;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.TextView;
import com.android.launcher3.util.MultiScalePropertyFactory;
public class LauncherAnimUtils {
/**
* Durations for various state animations. These are not defined in resources to allow
* easier access from static classes and enums
*/
public static final int SPRING_LOADED_EXIT_DELAY = 500;
// Progress after which the transition is assumed to be a success
public static final float SUCCESS_TRANSITION_PROGRESS = 0.5f;
public static final float TABLET_BOTTOM_SHEET_SUCCESS_TRANSITION_PROGRESS = 0.3f;
public static final IntProperty<Drawable> DRAWABLE_ALPHA =
new IntProperty<Drawable>("drawableAlpha") {
@Override
public Integer get(Drawable drawable) {
return drawable.getAlpha();
}
@Override
public void setValue(Drawable drawable, int alpha) {
drawable.setAlpha(alpha);
}
};
public static final FloatProperty<View> SCALE_PROPERTY =
new FloatProperty<View>("scale") {
@Override
public Float get(View view) {
return view.getScaleX();
}
@Override
public void setValue(View view, float scale) {
view.setScaleX(scale);
view.setScaleY(scale);
}
};
/**
* Property to set the scale of workspace. The value is based on a combination
* of all the ones set, to have a smooth experience even in the case of overlapping scaling
* animation.
*/
public static final MultiScalePropertyFactory<Workspace<?>> WORKSPACE_SCALE_PROPERTY_FACTORY =
new MultiScalePropertyFactory<Workspace<?>>("workspace_scale_property");
/** Property to set the scale of hotseat. */
public static final MultiScalePropertyFactory<Hotseat> HOTSEAT_SCALE_PROPERTY_FACTORY =
new MultiScalePropertyFactory<Hotseat>("hotseat_scale_property");
public static final int SCALE_INDEX_UNFOLD_ANIMATION = 1;
public static final int SCALE_INDEX_WORKSPACE_STATE = 2;
public static final int SCALE_INDEX_REVEAL_ANIM = 3;
public static final int SCALE_INDEX_WIDGET_TRANSITION = 4;
/** Increase the duration if we prevented the fling, as we are going against a high velocity. */
public static int blockedFlingDurationFactor(float velocity) {
return (int) Utilities.boundToRange(Math.abs(velocity) / 2, 2f, 6f);
}
public static final IntProperty<LayoutParams> LAYOUT_WIDTH =
new IntProperty<LayoutParams>("width") {
@Override
public Integer get(LayoutParams lp) {
return lp.width;
}
@Override
public void setValue(LayoutParams lp, int width) {
lp.width = width;
}
};
public static final IntProperty<LayoutParams> LAYOUT_HEIGHT =
new IntProperty<LayoutParams>("height") {
@Override
public Integer get(LayoutParams lp) {
return lp.height;
}
@Override
public void setValue(LayoutParams lp, int height) {
lp.height = height;
}
};
public static final IntProperty<TextView> TEXT_COLOR =
new IntProperty<TextView>("textColor") {
@Override
public Integer get(TextView view) {
return view.getTextColors().getDefaultColor();
}
@Override
public void setValue(TextView view, int color) {
view.setTextColor(color);
}
};
public static final IntProperty<TextView> HINT_TEXT_COLOR =
new IntProperty<TextView>("hintTextColor") {
@Override
public Integer get(TextView view) {
return view.getHintTextColors().getDefaultColor();
}
@Override
public void setValue(TextView view, int color) {
view.setHintTextColor(color);
}
};
public static final FloatProperty<View> VIEW_TRANSLATE_X =
View.TRANSLATION_X instanceof FloatProperty ? (FloatProperty) View.TRANSLATION_X
: new FloatProperty<View>("translateX") {
@Override
public void setValue(View view, float v) {
view.setTranslationX(v);
}
@Override
public Float get(View view) {
return view.getTranslationX();
}
};
public static final FloatProperty<View> VIEW_TRANSLATE_Y =
View.TRANSLATION_Y instanceof FloatProperty ? (FloatProperty) View.TRANSLATION_Y
: new FloatProperty<View>("translateY") {
@Override
public void setValue(View view, float v) {
view.setTranslationY(v);
}
@Override
public Float get(View view) {
return view.getTranslationY();
}
};
public static final FloatProperty<View> VIEW_ALPHA =
View.ALPHA instanceof FloatProperty ? (FloatProperty) View.ALPHA
: new FloatProperty<View>("alpha") {
@Override
public void setValue(View view, float v) {
view.setAlpha(v);
}
@Override
public Float get(View view) {
return view.getAlpha();
}
};
public static final IntProperty<View> VIEW_BACKGROUND_COLOR =
new IntProperty<View>("backgroundColor") {
@Override
public void setValue(View view, int color) {
view.setBackgroundColor(color);
}
@Override
public Integer get(View view) {
if (!(view.getBackground() instanceof ColorDrawable)) {
return Color.TRANSPARENT;
}
return ((ColorDrawable) view.getBackground()).getColor();
}
};
/**
* Utility method to create an {@link AnimatorListener} which executes a callback on animation
* cancel.
*/
public static AnimatorListener newCancelListener(Runnable callback) {
return new AnimatorListenerAdapter() {
boolean mDispatched = false;
@Override
public void onAnimationCancel(Animator animation) {
if (!mDispatched) {
mDispatched = true;
callback.run();
}
}
};
}
/**
* A property that updates the specified property within a given range of values (ie. even if
* the animator goes beyond 0..1, the interpolated value will still be bounded).
* @param <T> the specified property
*/
public static class ClampedProperty<T> extends FloatProperty<T> {
private final FloatProperty<T> mProperty;
private final float mMinValue;
private final float mMaxValue;
public ClampedProperty(FloatProperty<T> property, float minValue, float maxValue) {
super(property.getName() + "Clamped");
mProperty = property;
mMinValue = minValue;
mMaxValue = maxValue;
}
@Override
public void setValue(T t, float v) {
mProperty.set(t, Utilities.boundToRange(v, mMinValue, mMaxValue));
}
@Override
public Float get(T t) {
return mProperty.get(t);
}
}
}