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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* Copyright (C) 2022 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 android.window;
import android.annotation.FloatRange;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.os.Parcel;
import android.os.Parcelable;
import android.view.RemoteAnimationTarget;
/**
* Object used to report back gesture progress. Holds information about a {@link BackEvent} plus
* any {@link RemoteAnimationTarget} the gesture manipulates.
*
* @see BackEvent
* @hide
*/
public final class BackMotionEvent implements Parcelable {
private final float mTouchX;
private final float mTouchY;
private final float mProgress;
@BackEvent.SwipeEdge
private final int mSwipeEdge;
@Nullable
private final RemoteAnimationTarget mDepartingAnimationTarget;
/**
* Creates a new {@link BackMotionEvent} instance.
*
* @param touchX Absolute X location of the touch point of this event.
* @param touchY Absolute Y location of the touch point of this event.
* @param progress Value between 0 and 1 on how far along the back gesture is.
* @param swipeEdge Indicates which edge the swipe starts from.
* @param departingAnimationTarget The remote animation target of the departing
* application window.
*/
public BackMotionEvent(float touchX, float touchY, float progress,
@BackEvent.SwipeEdge int swipeEdge,
@Nullable RemoteAnimationTarget departingAnimationTarget) {
mTouchX = touchX;
mTouchY = touchY;
mProgress = progress;
mSwipeEdge = swipeEdge;
mDepartingAnimationTarget = departingAnimationTarget;
}
private BackMotionEvent(@NonNull Parcel in) {
mTouchX = in.readFloat();
mTouchY = in.readFloat();
mProgress = in.readFloat();
mSwipeEdge = in.readInt();
mDepartingAnimationTarget = in.readTypedObject(RemoteAnimationTarget.CREATOR);
}
@NonNull
public static final Creator<BackMotionEvent> CREATOR = new Creator<BackMotionEvent>() {
@Override
public BackMotionEvent createFromParcel(Parcel in) {
return new BackMotionEvent(in);
}
@Override
public BackMotionEvent[] newArray(int size) {
return new BackMotionEvent[size];
}
};
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeFloat(mTouchX);
dest.writeFloat(mTouchY);
dest.writeFloat(mProgress);
dest.writeInt(mSwipeEdge);
dest.writeTypedObject(mDepartingAnimationTarget, flags);
}
/**
* Returns the progress of a {@link BackEvent}.
*
* @see BackEvent#getProgress()
*/
@FloatRange(from = 0, to = 1)
public float getProgress() {
return mProgress;
}
/**
* Returns the absolute X location of the touch point.
*/
public float getTouchX() {
return mTouchX;
}
/**
* Returns the absolute Y location of the touch point.
*/
public float getTouchY() {
return mTouchY;
}
/**
* Returns the screen edge that the swipe starts from.
*/
@BackEvent.SwipeEdge
public int getSwipeEdge() {
return mSwipeEdge;
}
/**
* Returns the {@link RemoteAnimationTarget} of the top departing application window,
* or {@code null} if the top window should not be moved for the current type of back
* destination.
*/
@Nullable
public RemoteAnimationTarget getDepartingAnimationTarget() {
return mDepartingAnimationTarget;
}
@Override
public String toString() {
return "BackMotionEvent{"
+ "mTouchX=" + mTouchX
+ ", mTouchY=" + mTouchY
+ ", mProgress=" + mProgress
+ ", mSwipeEdge" + mSwipeEdge
+ ", mDepartingAnimationTarget" + mDepartingAnimationTarget
+ "}";
}
}
|
