how to set handler to show imageview in android studio

I want to show some views after a delay after clicking the button
but it doesn't work
I can't find the problem
or maybe this code not working

I set the image to invisible and want to show it after 26s of clicking the button
can anybody help me?

this is a full code of activity

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);

    setContentView(R.layout.activity_enter);


    ImageView yourImage = findViewById(R.id.allRightRegistered);

    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            yourImage.setVisibility(View.VISIBLE);
        }
    }, 26000);

    VideoView videoview = findViewById(R.id.videoView);
    Uri uri = Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.intromovie);
    videoview.setVideoURI(uri);
    videoview.start();
}





@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    if (hasFocus) {
        getWindow().getDecorView().setSystemUiVisibility(
                View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
    }
}

}

and its my xml code

<VideoView
    android:id="@+id/videoView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<Button
    android:id="@+id/Enter_Btn"
    android:layout_width="300dp"
    android:layout_height="90dp"
    android:text="Im Ready To Enter\nCoffee Melody"
    android:textSize="18sp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.497"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.499" />

<ImageView
    android:id="@+id/allRightRegistered"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="24dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    android:visibility="invisible"
    app:srcCompat="@drawable/all_right_registered" />

I using motion layout by the way
it has 3 constraints

this is my design
in the first constraint, I set the button to invisible
in the second one, it will be visible
and after click the button it goes to the third one and the video will be play and button will be invisible
and I want one image and two buttons to be displayed after some time of clicking the button

To run a long-delayed job, use a Timer instead of Handler:

public class MainActivity extends AppCompatActivity {
private Button button;
private ImageView imageView1;
private Button button1;
private Button button2;
private TimerTask timerTask;
private Timer timer;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = findViewById(R.id.button);
imageView1 = findViewById(R.id.imageView1);
button1 = findViewById(R.id.button1);
button2 = findViewById(R.id.button2);
imageView1.setVisibility(View.GONE);
button1.setVisibility(View.GONE);
button2.setVisibility(View.GONE);
timerTask = new TimerTask() {
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
imageView1.setVisibility(View.VISIBLE);
button1.setVisibility(View.VISIBLE);
button2.setVisibility(View.VISIBLE);
}
});
}
};
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (timer != null) {
timer.cancel();
}
timer = new Timer();
timer.schedule(timerTask, 26000);
}
});
}
@Override
protected void onStop() {
super.onStop();
timer.cancel();
}
}