Introduction to Android Views and Custom Views

Android offers various UI components like Buttons, TextViews, and ImageViews. But sometimes, you might need a custom view.

Creating a Custom View

    public class CustomView extends View {
        public CustomView(Context context) {
            super(context);
        }

        @Override
        protected void onDraw(Canvas canvas) {
            super.onDraw(canvas);
            Paint paint = new Paint();
            paint.setColor(Color.BLUE);
            canvas.drawRect(0, 0, getWidth(), getHeight(), paint);
        }
    }