【Android、IOS、Flutter、鸿蒙、ReactNative 】绘制空心圆圈

Android java 绘制圆圈

自定义CircleView

package com.java.circle;

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

public class CircleView extends View {

    private Paint paint;
    private float x, y, radius;

    public CircleView(Context context, float x, float y, float radius) {
        super(context);
        this.x = x;
        this.y = y;
        this.radius = radius;
        initPaint();
    }

    private void initPaint() {
        paint = new Paint();
        paint.setAntiAlias(true);//消除锯齿
        paint.setColor(0xFF0000FF); // 设置圆圈颜色为蓝色
        paint.setStyle(Paint.Style.STROKE); // 设置为描边模式
        paint.setStrokeWidth(5); // 设置描边宽度
    }