The magical application of macro definition in app development

The magical application of macro definition in development- 作为常量:替换URL,数值等- 作为常用代码- 等价替换代码,可以当函数使用Usage rules- 1.常量以小写k开头- 2.使用下划线连接多个单词(全部大写)Example 1. Replace URL (character constant) #define kURL_SAVE_CHAT_HISTORY @"http://115.29.40.

C#/ios/android Universal encryption and decryption method

key= "1234578" used in encryption and decryption; Simultaneous value in the method of tuningC # code#regionCross-platform plus decryption (C #)/// ///des encryption of strings/// /// string to encrypt /// BASE64 encoded string

HTML Application (HTML application)

An HTA is an HTML Application (HTML application) that can run as long as you double-click   simply use the. HTA to save an HTML page for the extension.   The following standard HTML Application: hta demohello, world!   it more hta:application tag.

Android skillfully using the Finish method

In Android app development, when we jump from one activity to another, I use intent;Eg:intent Intent = new Intent (a.this,b.class);StartActivity (Intent);To do so, when we successfully jump to B, when we click on the function menu to return, I

Design Patterns in Android development-a detailed explanation of the singleton pattern

Design Patterns in Android development-a detailed explanation of the singleton pattern:1. Characteristics of the singleton mode:(1). Ensure that there is only one instance of a class(2). Provides a global access point that can be accessed to him.(3).

Add appsettings node in app. Config, conn.open times initialization error

After adding the appsettings node in App. Config, run the following error to the Conn.Open times:The type initializer for "System.Transactions.Diagnostics.DiagnosticTrace" throws an exception. "The problem is resolved after placing the

Importing third-party class library projects in Android Studio project

Right-click->open Module Settings650) this.width=650; "Src=" http://upload-images.jianshu.io/upload_images/442955-961b776e5bd0de05.png?imageMogr2/ auto-orient/strip%7cimageview2/2/w/1240 "class=" Imagebubble-image "style=" height:auto;vertical-align:

The realization method of--ios snow falling in learning practice

Method one: Using Nsmutablearray to achieveNsmutable *array; Global variables, called with timers in. m files-(void) down{ static int jiange = 0; jiange++; if (Jiange > 2) { jiange = 0; [Self snowstate]; } [Self snowdown]

Basics of Binder in Android

Android Binder Basics PointA comparison of traditional IPC and binder mechanismsTraditional IPC:1) receiver pays can not obtain the other party process reliable uid/pid, so that the identity of the other person can not be identified.2) The access

IOS Programming Dynamic Type 1

IOS programming Dynamic Type 1?Dynamic Type is a technology introduced in IOS 7 so helps realize this goal by providing specifically designed text Styl Es that is optimized for legibility.The Dynamic Type is a technique introduced from iOS7 to help

The meaning and difference of call and apply

The difference is that the second argument of call can be any type, and the second argument of apply must be an array, such as Func.call (FUNC1,VAR1,VAR2,VAR3), corresponding to the Apply notation: func.apply (func1,[var1,var2 , Var3]) 1. CallCall

"IOS" Baidu Map API Usage Summary

First, need to Baidu lbs open platform Registered developer account, this step slightly.The IOS SDK has started with a new key verification system since the v2.0.2 release. To use the Baidu Map SDK in a project, you must apply for the corresponding

Android sub-thread Update UI Interface Summary

Package Com.jrhcode.morethreadtest;import Java.util.concurrent.executors;import Android.os.asynctask;import Android.os.bundle;import Android.os.handler;import Android.app.activity;import Android.view.Menu;import Android.widget.textview;import

iOS screen adaptation (cont.)

Tagged with: iOS uifont adapterThe previous blog summarizes some tips on how to fit your iOS screen, and this article adds a few other thingsDesign drawingsThe design of the interface is usually made by the artist, and then the development is

Iphone6 adaptation of the mobile H5 page

Iphone6 and iphone 6 Plus have been out for some time. Many mobile sites, previously written dead body 320px, is now estimated to be busy with the adaptation. big screen Mobile phone has always been, just before everyone, but the majority of the

iOS practice-xcode6 Creating a static library

Development may have some of their own classes and tool functions, when the code is reused repeatedly. The simplest way to reuse code is to simply copy/paste. However, when you fix a bug or upgrade, you will encounter the need to modify all copies.

IOS Custom font settings

Sometimes customers are asked to use the founder Orchid Pavilion Black font, but iOS did not bring this font, swollen do, can only customize the font, the following is a few important steps of custom fonts:1. Download the font resource file (. ttf

Android fragment overlap problem--the solution caused by the hide,show approach

Recently, when I was doing the project, I encountered the problem of fragment overlap. The specific situation is that I am in a fragment, through the add to the Fragmenttransaction way, and put four sub-fragment Allfrg,moviefrg,newsfrg,otherfrg.

Android XMl Selector picture background Click and focus get style

Android XMl Selector picture background Click and focus get style

Android Feature Boot interface implementation

I. Interface implementation:drawing on other people's examples, and then record the implementation of the Guide interface, the overall implementation is not difficult, the premise is to have an art to help you do these guided pictures (find a

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