只贴VC了:
//
// ViewController.swift
// AbilityDiagramDemo
//
// Created by Heyuan Li on 17/2/8.
// Copyright © 2017年 Heyuan Li. All rights reserved.
//
import UIKit
import SnapKit
class ViewController: UIViewController {
privat[......]
只贴VC了:
//
// ViewController.swift
// AbilityDiagramDemo
//
// Created by Heyuan Li on 17/2/8.
// Copyright © 2017年 Heyuan Li. All rights reserved.
//
import UIKit
import SnapKit
class ViewController: UIViewController {
privat[......]
传送门:How to draw a n sided regular polygon in cartesian coordinates?
先上公式,假设要画正N边型,外接圆的中心点坐标为(x_centre, y_centre)
x[n] = r * cos(2*pi*n/N + theta) + x_centre
y[n] = r * sin(2*pi*n/N + theta) + y_centre
这里如果theta取0,那么画出来是歪的。
想正的话,theta = pi[......]
转载自:《How To Present An Alert View Using UIAlertController When You Don't Have A View Controller》
Over the summer I updated a number of apps to iOS 9. A common tasks for me was replacing the deprecated UIAlertView with new UIAlertController class.[......]
有的时候,我们需要将iPhone投影到PC的屏幕上,这些可以通过AirPlay完成。
但是在PC上,需要一个AirPlay的Receiver,推荐一个免费好用的:
5K Player
https://www.5kplayer.com/[......]