1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.quickstep.interaction; 17 18 import android.content.Context; 19 import android.graphics.drawable.Animatable2; 20 import android.graphics.drawable.AnimatedVectorDrawable; 21 import android.graphics.drawable.Drawable; 22 import android.view.View; 23 import android.widget.ImageView; 24 25 import androidx.core.content.ContextCompat; 26 27 import com.android.launcher3.R; 28 import com.android.quickstep.interaction.TutorialController.TutorialType; 29 30 import java.time.Duration; 31 32 /** Hand coaching animation. */ 33 final class TutorialHandAnimation { 34 35 // A delay for waiting the Activity fully launches. 36 private static final Duration ANIMATION_START_DELAY = Duration.ofMillis(300L); 37 38 private final ImageView mHandCoachingView; 39 private final AnimatedVectorDrawable mGestureAnimation; 40 TutorialHandAnimation(Context context, View rootView, int resId)41 TutorialHandAnimation(Context context, View rootView, int resId) { 42 mHandCoachingView = rootView.findViewById(R.id.gesture_tutorial_fragment_hand_coaching); 43 mGestureAnimation = (AnimatedVectorDrawable) ContextCompat.getDrawable(context, resId); 44 } 45 46 /** [Re]starts animation for the given tutorial. */ startLoopedAnimation(TutorialType tutorialType)47 void startLoopedAnimation(TutorialType tutorialType) { 48 mHandCoachingView.setVisibility(View.VISIBLE); 49 if (mGestureAnimation.isRunning()) { 50 stop(); 51 } 52 53 mGestureAnimation.clearAnimationCallbacks(); 54 mGestureAnimation.registerAnimationCallback( 55 new Animatable2.AnimationCallback() { 56 @Override 57 public void onAnimationEnd(Drawable drawable) { 58 super.onAnimationEnd(drawable); 59 mGestureAnimation.start(); 60 } 61 }); 62 start(tutorialType); 63 } 64 start(TutorialType tutorialType)65 private void start(TutorialType tutorialType) { 66 // Because the gesture animation has only the right side form. 67 // The left side form of the gesture animation is made from flipping the View. 68 float rotationY = tutorialType == TutorialType.LEFT_EDGE_BACK_NAVIGATION ? 180f : 0f; 69 mHandCoachingView.setRotationY(rotationY); 70 mHandCoachingView.setImageDrawable(mGestureAnimation); 71 mHandCoachingView.postDelayed(mGestureAnimation::start, ANIMATION_START_DELAY.toMillis()); 72 } 73 stop()74 void stop() { 75 mGestureAnimation.clearAnimationCallbacks(); 76 mGestureAnimation.stop(); 77 } 78 } 79