Android-检测手机多点触摸点数

多点触摸点数效果图

Circle.java

package com.zking.administrator.g160628_android19_pointstouch;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;

import java.util.Random;

/**
 * Created by Administrator on 2017/7/9.
 */

public class Circle {
    public float x;
    public float y;
    public  int r=100;//半径
    public int id;//手指的名字
    //三原色(每一个int类型的取值都是255)
    int red;
    int green;
    int blue;
    //随机数
    Random random=new Random();

    public Circle(float x, float y, int id) {
        this.x = x;
        this.y = y;
        this.id = id;
        red=random.nextInt(255);
        green=random.nextInt(255);
        blue=random.nextInt(255);
    }

    //画自己
    p