How to Prevent the Status Bar and Navigation Bar from Animating During an Activity Scene Animation Transition

How do I prevent the status bar and navigation bar from animating during an activity scene animation transition?

There are two approaches you can use that I know of to prevent the navigation/status bar from animating during the transition:

Approach #1: Exclude the status bar and navigation bar from the window's default exit/enter fade transition

The reason why the navigation/status bar are fading in and out during the transition is because by default all non-shared views (including the navigation/status bar backgrounds) will fade out/in in your calling/called Activitys respectively once the transition begins. You can, however, easily get around this by excluding the navigation/status bar backgrounds from the window's default exit/enter Fade transition. Simply add the following code to your Activitys' onCreate() methods:

Transition fade = new Fade();
fade.excludeTarget(android.R.id.statusBarBackground, true);
fade.excludeTarget(android.R.id.navigationBarBackground, true);
getWindow().setExitTransition(fade);
getWindow().setEnterTransition(fade);

This transition could also be declared in the activity's theme using XML (i.e. in your own res/transition/window_fade.xml file):

<?xml version="1.0" encoding="utf-8"?>
<fade xmlns:android="http://schemas.android.com/apk/res/android">
    <targets>
        <target android:excludeId="@android:id/statusBarBackground"/>
        <target android:excludeId="@android:id/navigationBarBackground"/>
    </targets>
</fade>

Approach #2: Add the status bar and navigation bar as shared elements

This approach builds off of klmprt's answer, which almost worked for me... although I still needed to make a couple of modifications.

In my calling Activity, I used the following code to start the Activity:

View statusBar = findViewById(android.R.id.statusBarBackground);
View navigationBar = findViewById(android.R.id.navigationBarBackground);

List<Pair<View, String>> pairs = new ArrayList<>();
if (statusBar != null) {
  pairs.add(Pair.create(statusBar, Window.STATUS_BAR_BACKGROUND_TRANSITION_NAME));
}
if (navigationBar != null) {
  pairs.add(Pair.create(navigationBar, Window.NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME));
}
pairs.add(Pair.create(mSharedElement, mSharedElement.getTransitionName()));

Bundle options = ActivityOptions.makeSceneTransitionAnimation(activity, 
        pairs.toArray(new Pair[pairs.size()])).toBundle();
startActivity(new Intent(context, NextActivity.class), options);

So far this is essentially the same thing that klmprt suggested in his answer. However, I also needed to add the following code in my called Activity's onCreate() method in order to prevent the status bar and navigation bar from "blinking" during the transition:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_next);

    // Postpone the transition until the window's decor view has
    // finished its layout.
    postponeEnterTransition();

    final View decor = getWindow().getDecorView();
    decor.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        @Override
        public boolean onPreDraw() {
            decor.getViewTreeObserver().removeOnPreDrawListener(this);
            startPostponedEnterTransition();
            return true;
        }
    });
}

Adding the status bar and navigation bar backgrounds as shared elements will force them to be drawn on top of the window's default exit/enter fade transition, meaning that they will not fade during the transition. More discussion about this approach can be found in this Google+ post.

recreate activity with animation not work

I solved doing a kotlin extension:

fun Activity.recreateSmoothly() {
    finish()
    overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out)
    startActivity(Intent(this.intent))
}

and just calling in the activities.

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