layer | 易学教程

让https页面也加载http资源

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这段时间给线上项目加了个https证书,有的页面报错了报错页面 HTTPS 是 HTTP over Secure Socket Layer，以安全为目标的 HTTP 通道，所以在 HTTPS 承载的页面上不允许出现 http 请求，一旦出现就是提示或报错：然后大致查了一下解决方案在页面<head></head>中添加 <meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests"> 就可以让你页面上所有的非http请求强制转成https请求，以更好的使用 SSL 协议. 来源： https://my.oschina.net/u/4196676/blog/3109993

Square shaped layout border with round inside edges

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I’m attempting to create a layout border with corners that are square on the outside and round on the inside. I’ve gathered that I need to create an .xml drawable definition composed of two shapes: one with a stroke width and corner radius and another with a stroke width only: The drawables round_border.xml <shape xmlns:android="http://schemas.android.com/apk/res/android"> <stroke android:width="4dp" android:color="#FF000000" /> <padding android:left="7dp" android:top="7dp" android:right="7dp" android:bottom="7dp" /> <corners android:radius="4dp" /> <solid android:color="#FFC0C0C0" /> </shape>

cocos2d subclassing sprite to handle touch?

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问题 I'm new to the cocos2d(-x) world. I'd like to detect a touch to a sprite, and tutorials/examples seem to suggest using layer to detect touch and find the approapriate sprite with bounding box. Is subclassing sprite to allow touch detection generally a bad idea? 回答1: it is better and much more clear to handle touches in one place. but i think, no one can bar you to do this 回答2: Note: This answer might be outdated. I answered this at 2012. It is not a bad idea. Here is how I do it: header file:

What should I keep in mind in order to refactor huge code base?

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I'm going to refactor certain parts in a huge code base (18000+ Java classes). Goal is to be able to extract lower layers as independent libraries to be reused in other projects that currently use duplicate of this code base. Especially one part is of interest to be refactored into a framework independent of business logic. Ultimately I would like the code to have a clean architectural layering. I've looked at the code with a tool called Structure 101 for java and found lots (!) of architectural layering issues where lower layers are referencing upper layers. I don't want to simply start

How to scale the size of line and point separately in ggplot2

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问题 The code is as follows: set.seed(123) d1=data.frame(x=runif(10),y=runif(10),z=runif(10,1,10)) d2=data.frame(x=runif(10),y=runif(10),z=runif(10,100,1000)) ggplot()+geom_point(aes(x,y,size=z),data=d1)+ geom_line(aes(x,y,size=z),data=d2) And the result is like this: The size of points are too small so I want to change its size by scale_size . However, it seems both lines and points are influenced. So I wonder if there is a way to scale lines and points separately with a separate legend? 回答1: The

What is the correct way to use Unit of Work/Repositories within the business layer?

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问题 Having built a small application using the Unit of Work/Repository pattern, I am struggling to understand how to use this properly within my business layer. My application has a a data access layer which can be either NHibernate or the Entity Framework. I can switch between these easily. I have a number of repositories, for example, Customer, Order etc. My unit of work will be either an ISession or an Object Context depending on which DAL I want to test with. My business layer contains a

通俗话说一说各种Normalization以及用deeplearning4j实现Layer Normalization

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一、Normalization是什么 Normalization一句话概括来说就是用一种办法，将一组数据压到均值为0，方差为1的正态分布上去，具体做法是数据集的每一个元素减去均值再除以标准差。公式如下：（请忽略参数g，g的问题很诡异，后面说）这个公式说的更直白一点就是，把每一个a，经过平移和缩放，得到一个新值。而这样做的一个理由是，平移缩放并不会改变原始数据的分布情况，原来最大的还是最大，原来最小的还是最小。 Deeplearning中有很多Normalization的方法，有BN、LN、IN、GN等等，每一种Normalization公式都一样，只是沿着的轴不一样，BN就是沿着minibatch方向，LN就是沿着影藏层的output vector维方向，举个例子，对于四维张量[minibatch，depth、height、width]，那就是沿着depth方向，把height、width维约简掉。二、说说Layer Normalization Layer Normalization对于时间序列数据有奇效，下面截一段论文的原文。这是在RNN上用Layer Normalization 简短的话说一下论文的变量含义，a表示t时刻点rnn的预输出值（还没有经过激活函数哦），h表示rnn某一个隐层t时刻点的输出。那么，这里Normalization是哪一个维度呢

Why is MVC so popular?

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I was originally going to make this a longer question, but I feel like the shorter I make it, the better you'll understand what I mean. The MVC architectural pattern has 3 dependencies. The View depends on the model. The Controller depends on the View and Model. The Model is independent. The Layers architectural pattern defines N - 1 dependencies, where N is the number of Layers. Given three Layers: Model, View, and Controller, there are only 2 dependencies, as opposed to 3 with traditional MVC. The structure looks like this: View ---> Controller ---> Model [View depends on Controller,

ggplot2: Bring one line to the front, but save the colors

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问题 Consider the following code: library(ggplot2) foo <- data.frame(x=1:10,A=1:10,B=10:1) ggplot(melt(foo,id.vars="x"),aes(x,value,color=variable))+geom_line(size=5) I want to bring the red line (A) to the front, on top of B (see the cross point), while the colors and the order they appear in the legend do not change. Is there any way? 回答1: Try this, last_plot() + aes(group=rev(variable)) 回答2: Replotting the red line using a subsetted dataframe does the trick. library(ggplot2) foo <- data.frame(x

Omni/USDT PHP开发包简介

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OmniTool开发包适用于为PHP应用快速增加对Omni Layer/USDT数字资产的支持能力，即支持使用自有Omni Layer节点的应用场景，也支持基于第三方API服务和离线裸交易的轻量级部署场景。下载地址： omni/usdt php开发包。 1、OmniTool开发包简介 OmniTool开发包主要包含以下特性：完善的Omni Layer节点RPC封装支持利用自有节点或第三方服务获取指定地址的utxo集合支持离线生成omni代币转账裸交易支持利用自有节点或第三方服务广播裸交易 OmniTool支持本地部署的Omnicored节点，也支持blockchain.info、btc.com等提供的开放API，要增加对其他第三方服务的支持也非常简单，只需要参考代码实现如下接口： UtxoCollectorInterface：utxo收集器 UtxoSelectorInterface：utxo筛选器 BroadcasterInterface：裸交易广播器 ExplorerInterface：数据查询接口 OmniTool软件包运行在**Php 7.1+**环境下，当前版本1.0.0，主要类/接口及关系如下图所示： OmniTool的主要代码文件清单如下：代码文件说明 omni.php/src/RpcClient.php Omni Layer的RPC协议封装类 omni

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