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/*
* Copyright (C) 2020 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.example.android.startingwindow;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ShortcutInfo;
import android.content.pm.ShortcutManager;
import android.content.res.Resources;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Process;
import android.os.SystemClock;
import android.provider.Settings.Global;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnPreDrawListener;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Interpolator;
import android.view.animation.PathInterpolator;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.window.SplashScreen;
import android.window.SplashScreenView;
import androidx.annotation.RequiresApi;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.Collections;
@RequiresApi(api = VERSION_CODES.S)
public class CustomizeExitActivity extends Activity {
public static final Interpolator EASE_IN_OUT = new PathInterpolator(.48f, .11f, .53f, .87f);
public static final Interpolator ACCELERATE = new AccelerateInterpolator();
public static final int MOCK_DELAY = 200;
public static final int MARGIN_ANIMATION_DURATION = 800;
public static final int SPLASHSCREEN_ALPHA_ANIMATION_DURATION = 500;
public static final int SPLASHSCREEN_TY_ANIMATION_DURATION = 1000;
public static final boolean WAIT_FOR_AVD_TO_FINISH = true;
public static final boolean DEBUG = false;
boolean appReady = false;
private float animationScale = 1.0f;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
getWindow().setDecorFitsSystemWindows(false);
// On Android S, this new method has been added to Activity
SplashScreen splashScreen = getSplashScreen();
// Setting an OnExitAnimationListener on the SplashScreen indicates
// to the system that the application will handle the exit animation.
// This means that the SplashScreen will be inflated in the application
// process once the process has started.
// Otherwise, the splashscreen stays in the SystemUI process and will be
// dismissed once the first frame of the app is drawn
splashScreen.setOnExitAnimationListener(this::onSplashScreenExit);
animationScale = Global.getFloat(getContentResolver(),
Global.ANIMATOR_DURATION_SCALE, 1.0f);
// Create some artificial delay to simulate some local database fetch for example
new Handler(Looper.getMainLooper())
.postDelayed(() -> appReady = true, (long) (MOCK_DELAY * animationScale));
// We use a pre draw listener to delay the removal of the splashscreen
// until our app is ready
final View content = findViewById(android.R.id.content);
content.getViewTreeObserver().addOnPreDrawListener(
new OnPreDrawListener() {
@Override
public boolean onPreDraw() {
if (appReady) {
content.getViewTreeObserver().removeOnPreDrawListener(this);
return true;
}
return false;
}
}
);
}
private void onSplashScreenExit(SplashScreenView view) {
// At this point the first frame of the application is drawn and
// the SplashScreen is ready to be removed.
// It is now up to the application to animate the provided view
// since the listener is registered
AnimatorSet animatorSet = new AnimatorSet();
animatorSet.setDuration(500);
ObjectAnimator translationY = ObjectAnimator.ofFloat(view, "translationY", 0, view.getHeight());
translationY.setInterpolator(ACCELERATE);
ObjectAnimator alpha = ObjectAnimator.ofFloat(view, "alpha", 1, 0);
alpha.setInterpolator(ACCELERATE);
// To get fancy, we'll also animate our content
ValueAnimator marginAnimator = createContentAnimation();
animatorSet.playTogether(translationY, alpha, marginAnimator);
animatorSet.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
view.remove();
}
});
// If we want to wait for our Animated Vector Drawable to finish animating, we can compute
// the remaining time to delay the start of the exit animation
long delayMillis = Instant.now()
.until(view.getIconAnimationStart().plus(view.getIconAnimationDuration()),
ChronoUnit.MILLIS);
view.postDelayed(animatorSet::start, (long) (delayMillis * animationScale));
}
private ValueAnimator createContentAnimation() {
Resources r = getResources();
float marginStart = TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 30, r.getDisplayMetrics()
);
float marginEnd = TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 10, r.getDisplayMetrics()
);
ValueAnimator marginAnimator = ValueAnimator.ofFloat(marginStart, marginEnd);
marginAnimator.addUpdateListener(valueAnimator -> {
LinearLayout container = findViewById(R.id.container);
int marginTop = Math.round((Float) valueAnimator.getAnimatedValue());
for (int i = 0; i < container.getChildCount(); i++) {
View child = container.getChildAt(i);
((LayoutParams) child.getLayoutParams()).setMargins(0, marginTop, 0, 0);
}
container.requestLayout();
});
marginAnimator.setInterpolator(EASE_IN_OUT);
return marginAnimator;
}
@SuppressLint("SetTextI18n")
private void createShortcutButton() {
final Button Button = new Button(this);
Button.setText("Create shortcut");
Button.setOnClickListener((v) -> createShortcut());
addContentView(Button, new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
}
private void createShortcut() {
ShortcutManager shortcutManager = getSystemService(ShortcutManager.class);
String shortcutId1 = "shortcutId1";
shortcutManager.removeDynamicShortcuts(Collections.singletonList(shortcutId1));
final ShortcutInfo.Builder b = new ShortcutInfo.Builder(this, shortcutId1);
final ComponentName name = new ComponentName("com.example.android.startingwindow",
"com.example.android.startingwindow.SecondActivity");
final Intent i = new Intent(Intent.ACTION_MAIN)
.setComponent(name);
ShortcutInfo shortcut = b.setShortLabel("label")
.setLongLabel("Long label")
.setIntent(i)
.setStartingTheme(android.R.style.Theme_Black_NoTitleBar_Fullscreen)
.build();
shortcutManager.addDynamicShortcuts(Collections.singletonList(shortcut));
}
@Override
protected void onPause() {
// For the sake of this demo app, we kill the app on pause so
// we see a cold start animation for each launch
super.onPause();
finishAndRemoveTask();
Process.killProcess(Process.myPid());
}
}
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