Defining the Visual Element

To create the visual representation of the circle, define a drawable resource file named res/drawable/round_shape.xml. This creates a solid oval shape.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <solid android:color="#FF5722" />
    <size
        android:width="150dp"
        android:height="150dp" />
</shape>

Configuring the Layout

In the layout file res/layout/activity_main.xml, add the target View component and center it within the parent container.

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <View
        android:id="@+id/rotatingIndicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/round_shape"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

Implementing Animation Logic

The following logic utilizes ObjectAnimator to apply a continuous rotation effect to the view. This approach allows for smooth, infinite looping by manipulating the view's rotation property directly.

import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.os.Bundle;
import android.view.View;
import androidx.appcompat.app.AppCompatActivity;

public class RotationActivity extends AppCompatActivity {

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

        View targetElement = findViewById(R.id.rotatingIndicator);

        // Initialize the animator to rotate the view from 0 to 360 degrees
        ObjectAnimator rotationAnimator = ObjectAnimator.ofFloat(targetElement, "rotation", 0f, 360f);

        // Set the duration for a full rotation in milliseconds
        rotationAnimator.setDuration(1200);

        // Configure the animation to repeat infinitely
        rotationAnimator.setRepeatCount(ValueAnimator.INFINITE);

        // Ensure smooth linear movement without acceleration/deceleration
        rotationAnimator.setRepeatMode(ValueAnimator.RESTART);

        // Start the animation sequence
        rotationAnimator.start();
    }
}