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
|
/*
* Copyright (C) 2015 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.touch;
import static com.android.launcher3.LauncherState.ALL_APPS;
import static com.android.launcher3.LauncherState.NORMAL;
import static com.android.launcher3.anim.Interpolators.LINEAR;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_ALL_APPS_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
import android.view.MotionEvent;
import android.view.animation.Interpolator;
import com.android.launcher3.AbstractFloatingView;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherState;
import com.android.launcher3.anim.Interpolators;
import com.android.launcher3.states.StateAnimationConfig;
/**
* TouchController to switch between NORMAL and ALL_APPS state.
*/
public class AllAppsSwipeController extends AbstractStateChangeTouchController {
private static final float ALLAPPS_STAGGERED_FADE_THRESHOLD = 0.5f;
public static final Interpolator ALLAPPS_STAGGERED_FADE_EARLY_RESPONDER =
Interpolators.clampToProgress(LINEAR, 0, ALLAPPS_STAGGERED_FADE_THRESHOLD);
public static final Interpolator ALLAPPS_STAGGERED_FADE_LATE_RESPONDER =
Interpolators.clampToProgress(LINEAR, ALLAPPS_STAGGERED_FADE_THRESHOLD, 1f);
public AllAppsSwipeController(Launcher l) {
super(l, SingleAxisSwipeDetector.VERTICAL);
}
@Override
protected boolean canInterceptTouch(MotionEvent ev) {
if (mCurrentAnimation != null) {
// If we are already animating from a previous state, we can intercept.
return true;
}
if (AbstractFloatingView.getTopOpenView(mLauncher) != null) {
return false;
}
if (!mLauncher.isInState(NORMAL) && !mLauncher.isInState(ALL_APPS)) {
// Don't listen for the swipe gesture if we are already in some other state.
return false;
}
if (mLauncher.isInState(ALL_APPS) && !mLauncher.getAppsView().shouldContainerScroll(ev)) {
return false;
}
return true;
}
@Override
protected LauncherState getTargetState(LauncherState fromState, boolean isDragTowardPositive) {
if (fromState == NORMAL && isDragTowardPositive) {
return ALL_APPS;
} else if (fromState == ALL_APPS && !isDragTowardPositive) {
return NORMAL;
}
return fromState;
}
@Override
protected float initCurrentAnimation() {
float range = getShiftRange();
StateAnimationConfig config = getConfigForStates(mFromState, mToState);
config.duration = (long) (2 * range);
mCurrentAnimation = mLauncher.getStateManager()
.createAnimationToNewWorkspace(mToState, config);
float startVerticalShift = mFromState.getVerticalProgress(mLauncher) * range;
float endVerticalShift = mToState.getVerticalProgress(mLauncher) * range;
float totalShift = endVerticalShift - startVerticalShift;
return 1 / totalShift;
}
@Override
protected StateAnimationConfig getConfigForStates(LauncherState fromState,
LauncherState toState) {
StateAnimationConfig config = super.getConfigForStates(fromState, toState);
if (fromState == NORMAL && toState == ALL_APPS) {
applyNormalToAllAppsAnimConfig(config);
} else if (fromState == ALL_APPS && toState == NORMAL) {
applyAllAppsToNormalConfig(config);
}
return config;
}
/**
* Applies Animation config values for transition from all apps to home
*/
public static void applyAllAppsToNormalConfig(StateAnimationConfig config) {
config.setInterpolator(ANIM_SCRIM_FADE, ALLAPPS_STAGGERED_FADE_LATE_RESPONDER);
config.setInterpolator(ANIM_ALL_APPS_FADE, ALLAPPS_STAGGERED_FADE_EARLY_RESPONDER);
}
/**
* Applies Animation config values for transition from home to all apps
*/
public static void applyNormalToAllAppsAnimConfig(StateAnimationConfig config) {
config.setInterpolator(ANIM_SCRIM_FADE, ALLAPPS_STAGGERED_FADE_EARLY_RESPONDER);
config.setInterpolator(ANIM_ALL_APPS_FADE, ALLAPPS_STAGGERED_FADE_LATE_RESPONDER);
}
}
|
