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lawnchair/src/com/android/launcher3/touch/AllAppsSwipeController.java
Luca Zuccarini 43e3d45042 Update timings for the Home <> All Apps transition. 
Also updates some interpolators to make the manual and atomic
transitions more homogeneous.

Also also updates the commit point so it matches the transition point
between the two states exactly.

Note: the background scale is currently too much, and it needs to be 1/3
of the total distance to match the Workspace scaling. To do this, we
simply scale down the depth by a factor of 3 when calling the background
zoom-out API in the DepthController.

Bug: 254835725
Test: see videos in bug

Change-Id: I605546921e9ee4dfc852794c56495c72f0b916e1
2022-12-07 13:12:16 +00:00

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/*
* 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.EMPHASIZED;
import static com.android.launcher3.anim.Interpolators.EMPHASIZED_ACCELERATE;
import static com.android.launcher3.anim.Interpolators.EMPHASIZED_DECELERATE;
import static com.android.launcher3.anim.Interpolators.FINAL_FRAME;
import static com.android.launcher3.anim.Interpolators.INSTANT;
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_DEPTH;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_SCALE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_HOTSEAT_TRANSLATE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_SCRIM_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_VERTICAL_PROGRESS;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_FADE;
import static com.android.launcher3.states.StateAnimationConfig.ANIM_WORKSPACE_SCALE;
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 ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD = 0.8f;
private static final float ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD = 0.5f;
private static final float ALL_APPS_SCRIM_VISIBLE_THRESHOLD = 0.1f;
private static final float ALL_APPS_STAGGERED_FADE_THRESHOLD = 0.5f;
public static final Interpolator ALL_APPS_SCRIM_RESPONDER =
Interpolators.clampToProgress(
LINEAR, ALL_APPS_SCRIM_VISIBLE_THRESHOLD, ALL_APPS_STAGGERED_FADE_THRESHOLD);
public static final Interpolator ALL_APPS_CLAMPING_RESPONDER =
Interpolators.clampToProgress(
LINEAR,
1 - ALL_APPS_CONTENT_FADE_MAX_CLAMPING_THRESHOLD,
1 - ALL_APPS_CONTENT_FADE_MIN_CLAMPING_THRESHOLD);
// ---- Custom interpolators for NORMAL -> ALL_APPS on phones only. ----
public static final float ALL_APPS_STATE_TRANSITION_ATOMIC = 0.3333f;
public static final float ALL_APPS_STATE_TRANSITION_MANUAL = 0.4f;
private static final float ALL_APPS_FADE_END_ATOMIC = 0.8333f;
private static final float ALL_APPS_FADE_END_MANUAL = 0.8f;
private static final float ALL_APPS_FULL_DEPTH_PROGRESS = 0.5f;
private static final float SCRIM_FADE_START_ATOMIC = 0.2642f;
private static final float SCRIM_FADE_START_MANUAL = 0.117f;
private static final float WORKSPACE_MOTION_START_ATOMIC = 0.1667f;
private static final Interpolator LINEAR_EARLY_MANUAL =
Interpolators.clampToProgress(LINEAR, 0f, ALL_APPS_STATE_TRANSITION_MANUAL);
private static final Interpolator STEP_TRANSITION_ATOMIC =
Interpolators.clampToProgress(FINAL_FRAME, 0f, ALL_APPS_STATE_TRANSITION_ATOMIC);
private static final Interpolator STEP_TRANSITION_MANUAL =
Interpolators.clampToProgress(FINAL_FRAME, 0f, ALL_APPS_STATE_TRANSITION_MANUAL);
// The blur to All Apps is set to be complete when the interpolator is at 0.5.
private static final Interpolator BLUR_ADJUSTED =
Interpolators.mapToProgress(LINEAR, 0f, ALL_APPS_FULL_DEPTH_PROGRESS);
public static final Interpolator BLUR_ATOMIC =
Interpolators.clampToProgress(
BLUR_ADJUSTED, WORKSPACE_MOTION_START_ATOMIC, ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator BLUR_MANUAL =
Interpolators.clampToProgress(BLUR_ADJUSTED, 0f, ALL_APPS_STATE_TRANSITION_MANUAL);
public static final Interpolator WORKSPACE_FADE_ATOMIC = STEP_TRANSITION_ATOMIC;
public static final Interpolator WORKSPACE_FADE_MANUAL = STEP_TRANSITION_MANUAL;
public static final Interpolator WORKSPACE_SCALE_ATOMIC =
Interpolators.clampToProgress(
EMPHASIZED_ACCELERATE, WORKSPACE_MOTION_START_ATOMIC,
ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator WORKSPACE_SCALE_MANUAL = LINEAR_EARLY_MANUAL;
public static final Interpolator HOTSEAT_FADE_ATOMIC = STEP_TRANSITION_ATOMIC;
public static final Interpolator HOTSEAT_FADE_MANUAL = STEP_TRANSITION_MANUAL;
public static final Interpolator HOTSEAT_SCALE_ATOMIC =
Interpolators.clampToProgress(
EMPHASIZED_ACCELERATE, WORKSPACE_MOTION_START_ATOMIC,
ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator HOTSEAT_SCALE_MANUAL = LINEAR_EARLY_MANUAL;
public static final Interpolator HOTSEAT_TRANSLATE_ATOMIC = STEP_TRANSITION_ATOMIC;
public static final Interpolator HOTSEAT_TRANSLATE_MANUAL = STEP_TRANSITION_MANUAL;
public static final Interpolator SCRIM_FADE_ATOMIC =
Interpolators.clampToProgress(
Interpolators.mapToProgress(LINEAR, 0f, 0.8f),
SCRIM_FADE_START_ATOMIC, ALL_APPS_STATE_TRANSITION_ATOMIC);
public static final Interpolator SCRIM_FADE_MANUAL =
Interpolators.clampToProgress(
LINEAR, SCRIM_FADE_START_MANUAL, ALL_APPS_STATE_TRANSITION_MANUAL);
public static final Interpolator ALL_APPS_FADE_ATOMIC =
Interpolators.clampToProgress(
Interpolators.mapToProgress(EMPHASIZED_DECELERATE, 0.2f, 1f),
ALL_APPS_STATE_TRANSITION_ATOMIC, ALL_APPS_FADE_END_ATOMIC);
public static final Interpolator ALL_APPS_FADE_MANUAL =
Interpolators.clampToProgress(
LINEAR, ALL_APPS_STATE_TRANSITION_MANUAL, ALL_APPS_FADE_END_MANUAL);
public static final Interpolator ALL_APPS_VERTICAL_PROGRESS_ATOMIC =
Interpolators.clampToProgress(
Interpolators.mapToProgress(EMPHASIZED_DECELERATE, 0.4f, 1f),
ALL_APPS_STATE_TRANSITION_ATOMIC, 1f);
public static final Interpolator ALL_APPS_VERTICAL_PROGRESS_MANUAL =
Interpolators.clampToProgress(
Interpolators.mapToProgress(LINEAR, ALL_APPS_STATE_TRANSITION_MANUAL, 1f),
ALL_APPS_STATE_TRANSITION_MANUAL, 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);
config.userControlled = true;
if (fromState == NORMAL && toState == ALL_APPS) {
applyNormalToAllAppsAnimConfig(mLauncher, config);
} else if (fromState == ALL_APPS && toState == NORMAL) {
applyAllAppsToNormalConfig(mLauncher, config);
}
return config;
}
/**
* Applies Animation config values for transition from all apps to home.
*/
public static void applyAllAppsToNormalConfig(Launcher launcher, StateAnimationConfig config) {
if (launcher.getDeviceProfile().isTablet) {
config.setInterpolator(ANIM_SCRIM_FADE,
Interpolators.reverse(ALL_APPS_SCRIM_RESPONDER));
config.setInterpolator(ANIM_ALL_APPS_FADE, FINAL_FRAME);
if (!config.userControlled) {
config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED);
}
config.setInterpolator(ANIM_WORKSPACE_SCALE, EMPHASIZED);
config.setInterpolator(ANIM_DEPTH, EMPHASIZED);
} else {
if (config.userControlled) {
config.setInterpolator(ANIM_DEPTH, Interpolators.reverse(BLUR_MANUAL));
config.setInterpolator(ANIM_WORKSPACE_FADE,
Interpolators.reverse(WORKSPACE_FADE_MANUAL));
config.setInterpolator(ANIM_WORKSPACE_SCALE,
Interpolators.reverse(WORKSPACE_SCALE_MANUAL));
config.setInterpolator(ANIM_HOTSEAT_FADE,
Interpolators.reverse(HOTSEAT_FADE_MANUAL));
config.setInterpolator(ANIM_HOTSEAT_SCALE,
Interpolators.reverse(HOTSEAT_SCALE_MANUAL));
config.setInterpolator(ANIM_HOTSEAT_TRANSLATE,
Interpolators.reverse(HOTSEAT_TRANSLATE_MANUAL));
config.setInterpolator(ANIM_SCRIM_FADE, Interpolators.reverse(SCRIM_FADE_MANUAL));
config.setInterpolator(ANIM_ALL_APPS_FADE,
Interpolators.reverse(ALL_APPS_FADE_MANUAL));
config.setInterpolator(ANIM_VERTICAL_PROGRESS,
Interpolators.reverse(ALL_APPS_VERTICAL_PROGRESS_MANUAL));
} else {
config.setInterpolator(ANIM_SCRIM_FADE,
Interpolators.reverse(ALL_APPS_SCRIM_RESPONDER));
config.setInterpolator(ANIM_ALL_APPS_FADE, ALL_APPS_CLAMPING_RESPONDER);
config.setInterpolator(ANIM_WORKSPACE_FADE, INSTANT);
config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED_ACCELERATE);
}
}
}
/**
* Applies Animation config values for transition from home to all apps.
*/
public static void applyNormalToAllAppsAnimConfig(
Launcher launcher, StateAnimationConfig config) {
if (launcher.getDeviceProfile().isTablet) {
config.setInterpolator(ANIM_ALL_APPS_FADE, INSTANT);
config.setInterpolator(ANIM_SCRIM_FADE, ALL_APPS_SCRIM_RESPONDER);
if (!config.userControlled) {
config.setInterpolator(ANIM_VERTICAL_PROGRESS, EMPHASIZED);
}
config.setInterpolator(ANIM_WORKSPACE_SCALE, EMPHASIZED);
config.setInterpolator(ANIM_DEPTH, EMPHASIZED);
} else {
config.setInterpolator(ANIM_DEPTH, config.userControlled ? BLUR_MANUAL : BLUR_ATOMIC);
config.setInterpolator(ANIM_WORKSPACE_FADE,
config.userControlled ? WORKSPACE_FADE_MANUAL : WORKSPACE_FADE_ATOMIC);
config.setInterpolator(ANIM_WORKSPACE_SCALE,
config.userControlled ? WORKSPACE_SCALE_MANUAL : WORKSPACE_SCALE_ATOMIC);
config.setInterpolator(ANIM_HOTSEAT_FADE,
config.userControlled ? HOTSEAT_FADE_MANUAL : HOTSEAT_FADE_ATOMIC);
config.setInterpolator(ANIM_HOTSEAT_SCALE,
config.userControlled ? HOTSEAT_SCALE_MANUAL : HOTSEAT_SCALE_ATOMIC);
config.setInterpolator(ANIM_HOTSEAT_TRANSLATE,
config.userControlled ? HOTSEAT_TRANSLATE_MANUAL : HOTSEAT_TRANSLATE_ATOMIC);
config.setInterpolator(ANIM_SCRIM_FADE,
config.userControlled ? SCRIM_FADE_MANUAL : SCRIM_FADE_ATOMIC);
config.setInterpolator(ANIM_ALL_APPS_FADE,
config.userControlled ? ALL_APPS_FADE_MANUAL : ALL_APPS_FADE_ATOMIC);
config.setInterpolator(ANIM_VERTICAL_PROGRESS,
config.userControlled
? ALL_APPS_VERTICAL_PROGRESS_MANUAL
: ALL_APPS_VERTICAL_PROGRESS_ATOMIC);
}
}
}
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