/* * 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.DECELERATED_EASE; 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 ALLAPPS_STAGGERED_FADE_THRESHOLD = 0.5f; // Custom timing for NORMAL -> ALL_APPS on phones only. private static final float WORKSPACE_MOTION_START = 0.1667f; private static final float ALL_APPS_STATE_TRANSITION = 0.305f; private static final float ALL_APPS_FADE_END = 0.4717f; private static final float ALL_APPS_FULL_DEPTH_PROGRESS = 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); // Custom interpolators for NORMAL -> ALL_APPS on phones only. // The blur to All Apps is set to be complete when the interpolator is at 0.5. public static final Interpolator BLUR = Interpolators.clampToProgress( Interpolators.mapToProgress( EMPHASIZED_DECELERATE, 0f, ALL_APPS_FULL_DEPTH_PROGRESS), WORKSPACE_MOTION_START, ALL_APPS_STATE_TRANSITION); public static final Interpolator WORKSPACE_FADE = Interpolators.clampToProgress(FINAL_FRAME, 0f, ALL_APPS_STATE_TRANSITION); public static final Interpolator WORKSPACE_SCALE = Interpolators.clampToProgress( EMPHASIZED_DECELERATE, WORKSPACE_MOTION_START, ALL_APPS_STATE_TRANSITION); public static final Interpolator HOTSEAT_FADE = WORKSPACE_FADE; public static final Interpolator HOTSEAT_SCALE = HOTSEAT_FADE; public static final Interpolator HOTSEAT_TRANSLATE = Interpolators.clampToProgress( EMPHASIZED_ACCELERATE, WORKSPACE_MOTION_START, ALL_APPS_STATE_TRANSITION); public static final Interpolator SCRIM_FADE = Interpolators.clampToProgress( Interpolators.mapToProgress(LINEAR, 0f, 0.8f), WORKSPACE_MOTION_START, ALL_APPS_STATE_TRANSITION); public static final Interpolator ALL_APPS_FADE = Interpolators.clampToProgress( Interpolators.mapToProgress(DECELERATED_EASE, 0.2f, 1.0f), ALL_APPS_STATE_TRANSITION, ALL_APPS_FADE_END); public static final Interpolator ALL_APPS_VERTICAL_PROGRESS = Interpolators.clampToProgress( Interpolators.mapToProgress(EMPHASIZED_DECELERATE, 0.4f, 1.0f), ALL_APPS_STATE_TRANSITION, 1.0f); 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(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) { boolean isTablet = launcher.getDeviceProfile().isTablet; config.setInterpolator(ANIM_SCRIM_FADE, ALLAPPS_STAGGERED_FADE_LATE_RESPONDER); config.setInterpolator(ANIM_ALL_APPS_FADE, isTablet ? FINAL_FRAME : ALLAPPS_STAGGERED_FADE_EARLY_RESPONDER); if (!isTablet) { config.setInterpolator(ANIM_WORKSPACE_FADE, INSTANT); } } /** * 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_SCRIM_FADE, ALLAPPS_STAGGERED_FADE_EARLY_RESPONDER); config.setInterpolator(ANIM_ALL_APPS_FADE, INSTANT); } else { config.setInterpolator(ANIM_DEPTH, BLUR); config.setInterpolator(ANIM_WORKSPACE_FADE, WORKSPACE_FADE); config.setInterpolator(ANIM_WORKSPACE_SCALE, WORKSPACE_SCALE); config.setInterpolator(ANIM_HOTSEAT_FADE, HOTSEAT_FADE); config.setInterpolator(ANIM_HOTSEAT_SCALE, HOTSEAT_SCALE); config.setInterpolator(ANIM_HOTSEAT_TRANSLATE, HOTSEAT_TRANSLATE); config.setInterpolator(ANIM_SCRIM_FADE, SCRIM_FADE); config.setInterpolator(ANIM_ALL_APPS_FADE, ALL_APPS_FADE); config.setInterpolator(ANIM_VERTICAL_PROGRESS, ALL_APPS_VERTICAL_PROGRESS); } } }