邓映山 YingshanDeng

## font-metrics.js
function fontMetrics (family, size) {
  this._family = family || (family = "Monaco, 'Courier New', Courier, monospace")
  this._size = parseInt(size, 10) || (size = 12)

  // Preparing container
  var line = document.createElement('div')
  var body = document.body
  line.style.position = 'absolute'
  line.style.whiteSpace = 'nowrap'
  line.style.font = size + 'px ' + family

## hdpi-canvas-polyfill.js
function hdpiCanvasPolyfill (canvas) {
  var dpr = Math.max(1, window.devicePixelRatio || 1)
  var logicalWidth = canvas.width
  var logicalHeight = canvas.height

  canvas.width = dpr * logicalWidth
  canvas.height = dpr * logicalHeight
  canvas.style.width = `${logicalWidth}px`
  canvas.style.height = `${logicalHeight}px`

## simple-promise.js
'use strict'

// The Promise States constants
const PENDING = 0
const FULFILLED = 1
const REJECTED = 2

export default class Promise {
  // The constructor function
  constructor (executor) {

## CSS3 Media Queries Template
/*
 * Author: http://stuffandnonsense.co.uk/blog/about/hardboiled_css3_media_queries/
 */

/* Smartphones (portrait and landscape) ----------- */
@media only screen
and (min-device-width : 320px)
and (max-device-width : 480px) {
/* Styles */
}

## object-observe.html
<html>

<head>
    <meta charset="UTF-8">
    <title>object-observe</title>
    <style>

    </style>
</head>

## iOS-UIImage-FixOrientation
-(UIImage *)fixOrientation:(UIImage *)aImage
{
    if (aImage == nil)
    {
        return nil;
    }
    CGImageRef imgRef = aImage.CGImage;
    CGFloat width = CGImageGetWidth(imgRef);
    CGFloat height = CGImageGetHeight(imgRef);
    CGAffineTransform transform = CGAffineTransformIdentity;

## iOS-CPU
#import <mach/mach.h>
// 获取 CPU 使用率
float cpu_usage()
{
    kern_return_t kr;
    task_info_data_t tinfo;
    mach_msg_type_number_t task_info_count;

    task_info_count = TASK_INFO_MAX;
    kr = task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)tinfo, &task_info_count);

## iOS-FindTopVC
- (UIViewController *)topViewController{
  return [self topViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}

- (UIViewController *)topViewController:(UIViewController *)rootViewController
{
  if (rootViewController.presentedViewController == nil) {
    return rootViewController;
  }
	function fontMetrics (family, size) {
	this._family = family \|\| (family = "Monaco, 'Courier New', Courier, monospace")
	this._size = parseInt(size, 10) \|\| (size = 12)

	// Preparing container
	var line = document.createElement('div')
	var body = document.body
	line.style.position = 'absolute'
	line.style.whiteSpace = 'nowrap'
	line.style.font = size + 'px ' + family
	function hdpiCanvasPolyfill (canvas) {
	var dpr = Math.max(1, window.devicePixelRatio \|\| 1)
	var logicalWidth = canvas.width
	var logicalHeight = canvas.height

	canvas.width = dpr * logicalWidth
	canvas.height = dpr * logicalHeight
	canvas.style.width = `${logicalWidth}px`
	canvas.style.height = `${logicalHeight}px`
	'use strict'

	// The Promise States constants
	const PENDING = 0
	const FULFILLED = 1
	const REJECTED = 2

	export default class Promise {
	// The constructor function
	constructor (executor) {
	/*
	* Author: http://stuffandnonsense.co.uk/blog/about/hardboiled_css3_media_queries/
	*/

	/* Smartphones (portrait and landscape) ----------- */
	@media only screen
	and (min-device-width : 320px)
	and (max-device-width : 480px) {
	/* Styles */
	}
	<html>

	<head>
	<meta charset="UTF-8">
	<title>object-observe</title>
	<style>

	</style>
	</head>
	-(UIImage )fixOrientation:(UIImage )aImage
	{
	if (aImage == nil)
	{
	return nil;
	}
	CGImageRef imgRef = aImage.CGImage;
	CGFloat width = CGImageGetWidth(imgRef);
	CGFloat height = CGImageGetHeight(imgRef);
	CGAffineTransform transform = CGAffineTransformIdentity;
	#import <mach/mach.h>
	// 获取 CPU 使用率
	float cpu_usage()
	{
	kern_return_t kr;
	task_info_data_t tinfo;
	mach_msg_type_number_t task_info_count;

	task_info_count = TASK_INFO_MAX;
	kr = task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)tinfo, &task_info_count);
	- (UIViewController *)topViewController{
	return [self topViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
	}

	- (UIViewController )topViewController:(UIViewController )rootViewController
	{
	if (rootViewController.presentedViewController == nil) {
	return rootViewController;
	}