CircleView.java

package com.example.customviewhandson.customviews;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;

import com.example.customviewhandson.R;

import androidx.annotation.Nullable;
import androidx.core.content.ContextCompat;

public class CircleView extends View {

    Paint paintObject;
    int viewHeight;
    int viewWidth;
    public CircleView(Context context) {
        super(context);
        init();
    }

    public CircleView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    private void init() {
        paintObject = new Paint();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
    }
}