1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* 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 android.animation.Animator;
import android.animation.TimeInterpolator;
import android.util.FloatProperty;
import android.util.IntProperty;
import android.view.View;
/**
* Utility class for setting a property with or without animation
*/
public interface PropertySetter {
PropertySetter NO_ANIM_PROPERTY_SETTER = new PropertySetter() { };
/**
* Sets the view alpha using the provided interpolator.
* Unlike {@link #setFloat}, this also updates the visibility of the view as alpha changes
* between zero and non-zero.
*/
default void setViewAlpha(View view, float alpha, TimeInterpolator interpolator) {
if (view != null) {
view.setAlpha(alpha);
AlphaUpdateListener.updateVisibility(view);
}
}
/**
* Sets the background color of the provided view using the provided interpolator.
*/
default void setViewBackgroundColor(View view, int color, TimeInterpolator interpolator) {
if (view != null) {
view.setBackgroundColor(color);
}
}
/**
* Updates the float property of the target using the provided interpolator
*/
default <T> void setFloat(T target, FloatProperty<T> property, float value,
TimeInterpolator interpolator) {
property.setValue(target, value);
}
/**
* Updates the int property of the target using the provided interpolator
*/
default <T> void setInt(T target, IntProperty<T> property, int value,
TimeInterpolator interpolator) {
property.setValue(target, value);
}
default void add(Animator animatorSet) {
animatorSet.setDuration(0);
animatorSet.start();
}
}
|
