Frame by frame #1

SpinnerLoaderView.java

public class SpinnerLoaderView extends View {
    
    private final Paint mPaint = new Paint();
    
    /** @see View#View(Context) */
    public SpinnerLoaderView(Context context) {
        super(context);
        init();
    }

    /** @see View#View(Context, AttributeSet) */
    public SpinnerLoaderView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    /** @see View#View(Context, AttributeSet, int) */
    public SpinnerLoaderView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init() {
        // Sets the color of the progress bar
        mPaint.setColor(Color.LTGRAY);
        // Only the outline of a shape will be drawn
        mPaint.setStyle(Paint.Style.STROKE);
        // The start and end of the progress bar will have rounded edges
        mPaint.setStrokeCap(Paint.Cap.ROUND);
        // To get smoother shapes
        mPaint.setAntiAlias(true);
    }
}