我想在我的android studio应用程序中有一个圆形的搜索栏

public class CircularSearchView extends EditText {
    private Paint circlePaint;
    private Drawable searchIcon;

    public CircularSearchView(Context context) {
        super(context);
        init();
    }

    public CircularSearchView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public CircularSearchView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init() {
        // 初始化圆形背景画笔
        circlePaint = new Paint();
        circlePaint.setColor(Color.GRAY);
        circlePaint.setStyle(Paint.Style.FILL);

        // 初始化搜索图标
        searchIcon = getResources().getDrawable(R.drawable.ic_search);
        searchIcon.setBounds(0, 0, searchIcon.getIntrinsicWidth(), searchIcon.getIntrinsicHeight());

        // 设置点击事件监听器
        setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                // 处理搜索点击事件
                // TODO: 实现搜索功能
            }
        });
    }

    @Override
    protected void onDraw(Canvas canvas) {
        // 绘制圆形背景
        int centerX = getWidth() / 2;
        int centerY = getHeight() / 2;
        int radius = Math.min(centerX, centerY);
        canvas.drawCircle(centerX, centerY, radius, circlePaint);

        // 绘制搜索图标
        int iconX = centerX - searchIcon.getIntrinsicWidth() / 2;
        int iconY = centerY - searchIcon.getIntrinsicHeight() / 2;
        canvas.save();
        canvas.translate(iconX, iconY);
        searchIcon.draw(canvas);
        canvas.restore();

        // 绘制文本输入框
        super.onDraw(canvas);
    }
}

<com.example.myapplication.CircularSearchView
    android:layout_width="200dp"
    android:layout_height="200dp"
    android:gravity="center"
    android:hint="Search"
    android:textColorHint="#FFFFFF" />