| /* |
| * 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.systemui.volume; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.TimeInterpolator; |
| import android.animation.ValueAnimator; |
| import android.animation.ValueAnimator.AnimatorUpdateListener; |
| import android.app.Dialog; |
| import android.content.DialogInterface; |
| import android.content.DialogInterface.OnDismissListener; |
| import android.content.DialogInterface.OnShowListener; |
| import android.os.Handler; |
| import android.util.Log; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.animation.PathInterpolator; |
| |
| public class VolumeDialogMotion { |
| private static final String TAG = Util.logTag(VolumeDialogMotion.class); |
| |
| private static final float ANIMATION_SCALE = 1.0f; |
| private static final int PRE_DISMISS_DELAY = 50; |
| |
| private final Dialog mDialog; |
| private final View mDialogView; |
| private final ViewGroup mContents; // volume rows + zen footer |
| private final Handler mHandler = new Handler(); |
| private final Callback mCallback; |
| |
| private boolean mAnimating; // show or dismiss animation is running |
| private boolean mShowing; // show animation is running |
| private boolean mDismissing; // dismiss animation is running |
| private ValueAnimator mContentsPositionAnimator; |
| |
| public VolumeDialogMotion(Dialog dialog, View dialogView, ViewGroup contents, |
| Callback callback) { |
| mDialog = dialog; |
| mDialogView = dialogView; |
| mContents = contents; |
| mCallback = callback; |
| mDialog.setOnDismissListener(new OnDismissListener() { |
| @Override |
| public void onDismiss(DialogInterface dialog) { |
| if (D.BUG) Log.d(TAG, "mDialog.onDismiss"); |
| } |
| }); |
| mDialog.setOnShowListener(new OnShowListener() { |
| @Override |
| public void onShow(DialogInterface dialog) { |
| if (D.BUG) Log.d(TAG, "mDialog.onShow"); |
| final int h = mDialogView.getHeight(); |
| mDialogView.setTranslationY(-h); |
| startShowAnimation(); |
| } |
| }); |
| } |
| |
| public boolean isAnimating() { |
| return mAnimating; |
| } |
| |
| private void setShowing(boolean showing) { |
| if (showing == mShowing) return; |
| mShowing = showing; |
| if (D.BUG) Log.d(TAG, "mShowing = " + mShowing); |
| updateAnimating(); |
| } |
| |
| private void setDismissing(boolean dismissing) { |
| if (dismissing == mDismissing) return; |
| mDismissing = dismissing; |
| if (D.BUG) Log.d(TAG, "mDismissing = " + mDismissing); |
| updateAnimating(); |
| } |
| |
| private void updateAnimating() { |
| final boolean animating = mShowing || mDismissing; |
| if (animating == mAnimating) return; |
| mAnimating = animating; |
| if (D.BUG) Log.d(TAG, "mAnimating = " + mAnimating); |
| if (mCallback != null) { |
| mCallback.onAnimatingChanged(mAnimating); |
| } |
| } |
| |
| public void startShow() { |
| if (D.BUG) Log.d(TAG, "startShow"); |
| if (mShowing) return; |
| setShowing(true); |
| if (mDismissing) { |
| mDialogView.animate().cancel(); |
| setDismissing(false); |
| startShowAnimation(); |
| return; |
| } |
| if (D.BUG) Log.d(TAG, "mDialog.show()"); |
| mDialog.show(); |
| } |
| |
| private void startShowAnimation() { |
| if (D.BUG) Log.d(TAG, "startShowAnimation"); |
| mDialogView.animate() |
| .translationY(0) |
| .setDuration(scaledDuration(300)) |
| .setInterpolator(new LogDecelerateInterpolator()) |
| .setListener(null) |
| .start(); |
| |
| mContentsPositionAnimator = ValueAnimator.ofFloat(0).setDuration(scaledDuration(400)); |
| mContentsPositionAnimator.addListener(new AnimatorListenerAdapter() { |
| private boolean mCancelled; |
| |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| if (mCancelled) return; |
| if (D.BUG) Log.d(TAG, "show.onAnimationEnd"); |
| setShowing(false); |
| } |
| @Override |
| public void onAnimationCancel(Animator animation) { |
| if (D.BUG) Log.d(TAG, "show.onAnimationCancel"); |
| mCancelled = true; |
| } |
| }); |
| mContentsPositionAnimator.addUpdateListener(new AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator animation) { |
| float v = (Float) animation.getAnimatedValue(); |
| mContents.setTranslationY(v + -mDialogView.getTranslationY()); |
| } |
| }); |
| mContentsPositionAnimator.setInterpolator(new LogDecelerateInterpolator()); |
| mContentsPositionAnimator.start(); |
| |
| mContents.setAlpha(0); |
| mContents.animate() |
| .alpha(1) |
| .setDuration(scaledDuration(150)) |
| .setInterpolator(new PathInterpolator(0f, 0f, .2f, 1f)) |
| .start(); |
| } |
| |
| public void startDismiss() { |
| if (D.BUG) Log.d(TAG, "startDismiss"); |
| if (mDismissing) return; |
| setDismissing(true); |
| if (mShowing) { |
| mDialogView.animate().cancel(); |
| if (mContentsPositionAnimator != null) { |
| mContentsPositionAnimator.cancel(); |
| } |
| mContents.animate().cancel(); |
| setShowing(false); |
| } |
| mDialogView.animate() |
| .translationY(-mDialogView.getHeight()) |
| .setDuration(scaledDuration(250)) |
| .setInterpolator(new LogAccelerateInterpolator()) |
| .setUpdateListener(new AnimatorUpdateListener() { |
| @Override |
| public void onAnimationUpdate(ValueAnimator animation) { |
| mContents.setTranslationY(-mDialogView.getTranslationY()); |
| } |
| }) |
| .setListener(new AnimatorListenerAdapter() { |
| private boolean mCancelled; |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| if (mCancelled) return; |
| if (D.BUG) Log.d(TAG, "dismiss.onAnimationEnd"); |
| mHandler.postDelayed(new Runnable() { |
| @Override |
| public void run() { |
| if (D.BUG) Log.d(TAG, "mDialog.dismiss()"); |
| mDialog.dismiss(); |
| setDismissing(false); |
| } |
| }, PRE_DISMISS_DELAY); |
| |
| } |
| @Override |
| public void onAnimationCancel(Animator animation) { |
| if (D.BUG) Log.d(TAG, "dismiss.onAnimationCancel"); |
| mCancelled = true; |
| } |
| }).start(); |
| } |
| |
| private static int scaledDuration(int base) { |
| return (int) (base * ANIMATION_SCALE); |
| } |
| |
| public static final class LogDecelerateInterpolator implements TimeInterpolator { |
| private final float mBase; |
| private final float mDrift; |
| private final float mTimeScale; |
| private final float mOutputScale; |
| |
| public LogDecelerateInterpolator() { |
| this(400f, 1.4f, 0); |
| } |
| |
| private LogDecelerateInterpolator(float base, float timeScale, float drift) { |
| mBase = base; |
| mDrift = drift; |
| mTimeScale = 1f / timeScale; |
| |
| mOutputScale = 1f / computeLog(1f); |
| } |
| |
| private float computeLog(float t) { |
| return 1f - (float) Math.pow(mBase, -t * mTimeScale) + (mDrift * t); |
| } |
| |
| @Override |
| public float getInterpolation(float t) { |
| return computeLog(t) * mOutputScale; |
| } |
| } |
| |
| public static final class LogAccelerateInterpolator implements TimeInterpolator { |
| private final int mBase; |
| private final int mDrift; |
| private final float mLogScale; |
| |
| public LogAccelerateInterpolator() { |
| this(100, 0); |
| } |
| |
| private LogAccelerateInterpolator(int base, int drift) { |
| mBase = base; |
| mDrift = drift; |
| mLogScale = 1f / computeLog(1, mBase, mDrift); |
| } |
| |
| private static float computeLog(float t, int base, int drift) { |
| return (float) -Math.pow(base, -t) + 1 + (drift * t); |
| } |
| |
| @Override |
| public float getInterpolation(float t) { |
| return 1 - computeLog(1 - t, mBase, mDrift) * mLogScale; |
| } |
| } |
| |
| public interface Callback { |
| void onAnimatingChanged(boolean animating); |
| } |
| } |