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 17 package com.example.android.startingwindow; 18 19 import android.animation.Animator; 20 import android.animation.AnimatorListenerAdapter; 21 import android.animation.AnimatorSet; 22 import android.animation.ObjectAnimator; 23 import android.animation.ValueAnimator; 24 import android.annotation.SuppressLint; 25 import android.app.Activity; 26 import android.content.ComponentName; 27 import android.content.Intent; 28 import android.content.pm.ShortcutInfo; 29 import android.content.pm.ShortcutManager; 30 import android.content.res.Resources; 31 import android.os.Build.VERSION_CODES; 32 import android.os.Bundle; 33 import android.os.Handler; 34 import android.os.Looper; 35 import android.os.Process; 36 import android.os.SystemClock; 37 import android.provider.Settings.Global; 38 import android.util.TypedValue; 39 import android.view.View; 40 import android.view.ViewGroup; 41 import android.view.ViewTreeObserver.OnPreDrawListener; 42 import android.view.animation.AccelerateInterpolator; 43 import android.view.animation.Interpolator; 44 import android.view.animation.PathInterpolator; 45 import android.widget.Button; 46 import android.widget.LinearLayout; 47 import android.widget.LinearLayout.LayoutParams; 48 import android.window.SplashScreen; 49 import android.window.SplashScreenView; 50 51 import androidx.annotation.RequiresApi; 52 53 import java.time.Instant; 54 import java.time.temporal.ChronoUnit; 55 import java.util.Collections; 56 57 @RequiresApi(api = VERSION_CODES.S) 58 public class CustomizeExitActivity extends Activity { 59 60 public static final Interpolator EASE_IN_OUT = new PathInterpolator(.48f, .11f, .53f, .87f); 61 public static final Interpolator ACCELERATE = new AccelerateInterpolator(); 62 public static final int MOCK_DELAY = 200; 63 public static final int MARGIN_ANIMATION_DURATION = 800; 64 public static final int SPLASHSCREEN_ALPHA_ANIMATION_DURATION = 500; 65 public static final int SPLASHSCREEN_TY_ANIMATION_DURATION = 1000; 66 public static final boolean WAIT_FOR_AVD_TO_FINISH = true; 67 public static final boolean DEBUG = false; 68 69 boolean appReady = false; 70 private float animationScale = 1.0f; 71 72 @Override onCreate(Bundle savedInstanceState)73 protected void onCreate(Bundle savedInstanceState) { 74 super.onCreate(savedInstanceState); 75 setContentView(R.layout.main_activity); 76 getWindow().setDecorFitsSystemWindows(false); 77 78 // On Android S, this new method has been added to Activity 79 SplashScreen splashScreen = getSplashScreen(); 80 81 // Setting an OnExitAnimationListener on the SplashScreen indicates 82 // to the system that the application will handle the exit animation. 83 // This means that the SplashScreen will be inflated in the application 84 // process once the process has started. 85 // Otherwise, the splashscreen stays in the SystemUI process and will be 86 // dismissed once the first frame of the app is drawn 87 splashScreen.setOnExitAnimationListener(this::onSplashScreenExit); 88 89 animationScale = Global.getFloat(getContentResolver(), 90 Global.ANIMATOR_DURATION_SCALE, 1.0f); 91 92 // Create some artificial delay to simulate some local database fetch for example 93 new Handler(Looper.getMainLooper()) 94 .postDelayed(() -> appReady = true, (long) (MOCK_DELAY * animationScale)); 95 96 // We use a pre draw listener to delay the removal of the splashscreen 97 // until our app is ready 98 final View content = findViewById(android.R.id.content); 99 content.getViewTreeObserver().addOnPreDrawListener( 100 new OnPreDrawListener() { 101 @Override 102 public boolean onPreDraw() { 103 if (appReady) { 104 content.getViewTreeObserver().removeOnPreDrawListener(this); 105 return true; 106 } 107 return false; 108 } 109 } 110 ); 111 } 112 onSplashScreenExit(SplashScreenView view)113 private void onSplashScreenExit(SplashScreenView view) { 114 // At this point the first frame of the application is drawn and 115 // the SplashScreen is ready to be removed. 116 117 // It is now up to the application to animate the provided view 118 // since the listener is registered 119 AnimatorSet animatorSet = new AnimatorSet(); 120 animatorSet.setDuration(500); 121 122 ObjectAnimator translationY = ObjectAnimator.ofFloat(view, "translationY", 0, view.getHeight()); 123 translationY.setInterpolator(ACCELERATE); 124 125 ObjectAnimator alpha = ObjectAnimator.ofFloat(view, "alpha", 1, 0); 126 alpha.setInterpolator(ACCELERATE); 127 128 // To get fancy, we'll also animate our content 129 ValueAnimator marginAnimator = createContentAnimation(); 130 131 animatorSet.playTogether(translationY, alpha, marginAnimator); 132 animatorSet.addListener(new AnimatorListenerAdapter() { 133 @Override 134 public void onAnimationEnd(Animator animation) { 135 view.remove(); 136 } 137 }); 138 139 // If we want to wait for our Animated Vector Drawable to finish animating, we can compute 140 // the remaining time to delay the start of the exit animation 141 long delayMillis = Instant.now() 142 .until(view.getIconAnimationStart().plus(view.getIconAnimationDuration()), 143 ChronoUnit.MILLIS); 144 view.postDelayed(animatorSet::start, (long) (delayMillis * animationScale)); 145 } 146 createContentAnimation()147 private ValueAnimator createContentAnimation() { 148 Resources r = getResources(); 149 float marginStart = TypedValue.applyDimension( 150 TypedValue.COMPLEX_UNIT_DIP, 30, r.getDisplayMetrics() 151 ); 152 153 float marginEnd = TypedValue.applyDimension( 154 TypedValue.COMPLEX_UNIT_DIP, 10, r.getDisplayMetrics() 155 ); 156 157 ValueAnimator marginAnimator = ValueAnimator.ofFloat(marginStart, marginEnd); 158 marginAnimator.addUpdateListener(valueAnimator -> { 159 LinearLayout container = findViewById(R.id.container); 160 int marginTop = Math.round((Float) valueAnimator.getAnimatedValue()); 161 for (int i = 0; i < container.getChildCount(); i++) { 162 View child = container.getChildAt(i); 163 ((LayoutParams) child.getLayoutParams()).setMargins(0, marginTop, 0, 0); 164 } 165 container.requestLayout(); 166 }); 167 marginAnimator.setInterpolator(EASE_IN_OUT); 168 return marginAnimator; 169 } 170 171 @SuppressLint("SetTextI18n") createShortcutButton()172 private void createShortcutButton() { 173 final Button Button = new Button(this); 174 Button.setText("Create shortcut"); 175 Button.setOnClickListener((v) -> createShortcut()); 176 addContentView(Button, new ViewGroup.LayoutParams( 177 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); 178 } 179 createShortcut()180 private void createShortcut() { 181 ShortcutManager shortcutManager = getSystemService(ShortcutManager.class); 182 String shortcutId1 = "shortcutId1"; 183 shortcutManager.removeDynamicShortcuts(Collections.singletonList(shortcutId1)); 184 final ShortcutInfo.Builder b = new ShortcutInfo.Builder(this, shortcutId1); 185 final ComponentName name = new ComponentName("com.example.android.startingwindow", 186 "com.example.android.startingwindow.SecondActivity"); 187 final Intent i = new Intent(Intent.ACTION_MAIN) 188 .setComponent(name); 189 ShortcutInfo shortcut = b.setShortLabel("label") 190 .setLongLabel("Long label") 191 .setIntent(i) 192 .setStartingTheme(android.R.style.Theme_Black_NoTitleBar_Fullscreen) 193 .build(); 194 shortcutManager.addDynamicShortcuts(Collections.singletonList(shortcut)); 195 } 196 197 @Override onPause()198 protected void onPause() { 199 // For the sake of this demo app, we kill the app on pause so 200 // we see a cold start animation for each launch 201 super.onPause(); 202 finishAndRemoveTask(); 203 Process.killProcess(Process.myPid()); 204 } 205 }