iOS defensive programming

Defensive programming is a careful, discreet way of programming. To develop reliable software, we design each component in the system so that it "protects" itself as much as possible. We have broken down the ideas that were not recorded by

Use of the Ios-fmdb database

The following is no nonsense directly on the code??/* First drag the Fmdb into the project, we need to sqlite3 this library into the project, (if the project is non-arc, we can directly import the good) database--"operation of a large number of

Android Development Learning process "the first line of code" Coolweather Project Setonitemclicklistener function, SQL statement modification to simulate app program impact

Today, will be "the first line of code," the final Combat Coolweather project, carefully done it again.Tonight, in the first phase of the book to develop code in the end of the Android studio, found that the Setonitemclicklistener function according

Teach you to use DQN automatically play Flappy Bird (full command prompt, pure small white tutorial)

Teach you to use DQN automatically play Flappy Bird (full command prompt, pure small white tutorial)Li Zhe, Li Wei, JulyDescription: This tutorial was written primarily Yu Shinjie, and finally ran the Yenchenlin GitHub open source demo. In case of

Device rotation, creating a horizontal mode layout--android Studio

1. In the Project Tools window, right-click the Res directory and select the New--android Resource Directory menu item.2. Select layout from the Resource type resource type list to keep the main option of the source set intact.3. Select orientation

The mysterious applicationpoolidentity no longer need mom to worry about the program pool is safe.

In IIS 7 and IIS 7.5, we can set a special identity (user ID) for the application pool: applicationpoolidentity. So what exactly does this logo mean? What is it exactly? I'll tell you the answer to that.This identity setting will dynamically

Use simple JS files to write Web pages in app format

Title Write a Web page in the app format using a simple JS file

Design and implementation of the Android event bus (Eventbus)

1. Function IntroductionAndroideventbus is an Android platform event Bus library that simplifies the interaction between activity, Fragment, service and other components or objects, greatly reducing the coupling between them, making our code more

How to acquire a Android phone with locked bootloader?

As we know that some devices come with locked bootloaders like Sony, HUAWEI, HTC ... If you try to unlock bootloader, the data would disappear!!!Take the HTC d826y for example and our goal are to does physical acquisition so as to carve deleted data.

React Native Datepickerios

/**? Sample React Native App?* https://github.com/facebook/react-native?* @flow? */"Use Strict"Import React, {Component} from ' React 'Import {Appregistry,View,Text,Datepickerios,StyleSheet} from ' React-native 'Class HelloWorld extends Component

iOS Learning Notes (01)-Generics

decided to open a new hole in the continuous learning while sharing their learning process to everyone, not only the record of their own learning, but also hope to provide you with a bit of help.  This article mainly introduces the meaning of

Notification Center Nsnotificationcenter App Summary in iOS

Notification hubs (Nsnotificationcenter) actually provide a broadcast mechanism within the program. The received message is forwarded to the desired object according to the internal message forwarding. In fact, this sentence has clearly told us how

Understanding Memory management for IOS

Understanding Memory management for IOS The story of the ancient timesPeople who have experienced manual management of the Memory (MRC) era must remember memory management in IOS development. At that time about 2010, the domestic IOS development has

iOS Development UI Chapter-Program startup principle and UIApplication

1.UIApplication is the symbol of the application, a UIApplication object represents an application2. Each application has its own UIApplication object, and it is a singleton3. This singleton object can be obtained by [UIApplication Sharedapplication]

iOS filter implementation of Nashville "Instagram"

Nashville is one of the most amazing features of Instagram's many filters, and the unique milkshake tones give the photo a fairy-tale aesthetic feel.Scope of application: To create a romantic aesthetic feeling.That's true.There are 2 input

Using the HTTP GET service to integrate Microsoft Translator services in application

I. Creating a ProjectFirst, let's create an ASP. ApplicationChoose the most stylish and fashionable MVC, in order to make the demo more simple, here choose No authenticationTwo. Creating related classesThe project needs to introduce the previous two

iOS security protection for local files

Start with a few off-topic, many friends asked me how not to write anti-ah, I do have a little hesitation.Hackers always imagined that if he was a developer, he would be able to write, and then find the starting point. Similarly, developers have to

Error when starting project: Loading XML Bean Definitions from class path resource [Applicationcontext.xml]

Record it:09:33:28 CSTClass path resource [Applicationcontext.xml]Loading XML Bean Definitions from class path resource [Applicationcontext.xml] today the little buddy is having this problem.The reason is that after the spring project is created,

Androidstudio Confusing packaging

Projects in Androidstudio can be introduced into open source projects on GitHub in the form of compile, referencing module, not necessarily in the form of adding jar packages to libs folders. When the final realease is packaged, the confusing

Handwritten angular carousel diagram (mobile-side seamless version)

Code Address:Http://files.cnblogs.com/files/fxnet/%E6%89%8B%E5%86%99angular%E8%BD%AE%E6%92%AD%E5%9B%BE%EF%BC%88%E6%89%8B%E6 %9c%ba%e7%ab%af%e6%97%a0%e7%bc%9d%e7%89%88%ef%bc%89.zipHandwritten angular carousel diagram (mobile-side seamless version)

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