| /* |
| * Copyright (C) 2011 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.systemui.recent; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorSet; |
| import android.animation.AnimatorSet.Builder; |
| import android.animation.ObjectAnimator; |
| import android.graphics.drawable.Drawable; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.view.View; |
| |
| /* package */ class Choreographer implements Animator.AnimatorListener { |
| // should group this into a multi-property animation |
| private static final int OPEN_DURATION = 136; |
| private static final int CLOSE_DURATION = 250; |
| private static final int SCRIM_DURATION = 400; |
| private static final String TAG = RecentsPanelView.TAG; |
| private static final boolean DEBUG = RecentsPanelView.DEBUG; |
| |
| boolean mVisible; |
| int mPanelHeight; |
| View mRootView; |
| View mScrimView; |
| View mContentView; |
| AnimatorSet mContentAnim; |
| Animator.AnimatorListener mListener; |
| |
| // the panel will start to appear this many px from the end |
| final int HYPERSPACE_OFFRAMP = 200; |
| |
| public Choreographer(View root, View scrim, View content, Animator.AnimatorListener listener) { |
| mRootView = root; |
| mScrimView = scrim; |
| mContentView = content; |
| mListener = listener; |
| } |
| |
| void createAnimation(boolean appearing) { |
| float start, end; |
| |
| // 0: on-screen |
| // height: off-screen |
| float y = mContentView.getTranslationY(); |
| if (appearing) { |
| // we want to go from near-the-top to the top, unless we're half-open in the right |
| // general vicinity |
| start = (y < HYPERSPACE_OFFRAMP) ? y : HYPERSPACE_OFFRAMP; |
| end = 0; |
| } else { |
| start = y; |
| end = y + HYPERSPACE_OFFRAMP; |
| } |
| |
| Animator posAnim = ObjectAnimator.ofFloat(mContentView, "translationY", |
| start, end); |
| posAnim.setInterpolator(appearing |
| ? new android.view.animation.DecelerateInterpolator(2.5f) |
| : new android.view.animation.AccelerateInterpolator(2.5f)); |
| posAnim.setDuration(appearing ? OPEN_DURATION : CLOSE_DURATION); |
| |
| Animator glowAnim = ObjectAnimator.ofFloat(mContentView, "alpha", |
| mContentView.getAlpha(), appearing ? 1.0f : 0.0f); |
| glowAnim.setInterpolator(appearing |
| ? new android.view.animation.AccelerateInterpolator(1.0f) |
| : new android.view.animation.DecelerateInterpolator(1.0f)); |
| glowAnim.setDuration(appearing ? OPEN_DURATION : CLOSE_DURATION); |
| |
| mContentAnim = new AnimatorSet(); |
| final Builder builder = mContentAnim.play(glowAnim).with(posAnim); |
| Drawable background = mScrimView.getBackground(); |
| if (background != null) { |
| Animator bgAnim = ObjectAnimator.ofInt(background, |
| "alpha", appearing ? 0 : 255, appearing ? 255 : 0); |
| bgAnim.setDuration(appearing ? SCRIM_DURATION : CLOSE_DURATION); |
| builder.with(bgAnim); |
| } |
| mContentAnim.addListener(this); |
| if (mListener != null) { |
| mContentAnim.addListener(mListener); |
| } |
| } |
| |
| void startAnimation(boolean appearing) { |
| if (DEBUG) Slog.d(TAG, "startAnimation(appearing=" + appearing + ")"); |
| |
| createAnimation(appearing); |
| |
| mContentView.setLayerType(View.LAYER_TYPE_HARDWARE, null); |
| mContentAnim.start(); |
| |
| mVisible = appearing; |
| } |
| |
| void jumpTo(boolean appearing) { |
| mContentView.setTranslationY(appearing ? 0 : mPanelHeight); |
| } |
| |
| public void setPanelHeight(int h) { |
| if (DEBUG) Slog.d(TAG, "panelHeight=" + h); |
| mPanelHeight = h; |
| } |
| |
| public void onAnimationCancel(Animator animation) { |
| if (DEBUG) Slog.d(TAG, "onAnimationCancel"); |
| // force this to zero so we close the window |
| mVisible = false; |
| } |
| |
| public void onAnimationEnd(Animator animation) { |
| if (DEBUG) Slog.d(TAG, "onAnimationEnd"); |
| if (!mVisible) { |
| mRootView.setVisibility(View.GONE); |
| } |
| mContentView.setLayerType(View.LAYER_TYPE_NONE, null); |
| mContentAnim = null; |
| } |
| |
| public void onAnimationRepeat(Animator animation) { |
| } |
| |
| public void onAnimationStart(Animator animation) { |
| } |
| } |