Some of the common macros in iOS

original link1. Handling NSLog Events (developer mode printing, Publisher mode not printing) #ifdef DEBUG #define NSLog(FORMAT, ...) fprintf(stderr,"%s:%d\t%s\n",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String], __LINE__, [

Li Hongqiang principles and core mechanisms of iOS development Runloop

Li Hongqiang principles and core mechanisms of iOS development RunloopAfter iOS has not been in-depth study of runloop, very ashamed. Just a while ago in charge of performance optimization projects, we need to use Runloop for performance

iOS Animation 1-uiview Animation

The iOS Animation Foundation is the core animation key animation. Core animation is the infrastructure for graphics rendering and animation on the iOS platform. Because the implementation of the core animation is more complex, Apple provides an

Nagios Plugins 2.1.3 Released, Nagios plugin

Nagios Plugins 2.1.3 Released, Nagios Plugins is a plugin for the Nagios monitoring system.Updated as follows:Added SNI Support in Check_tcpAdded support FOR-K-Kerberos authentication inCheck_file_age now allows wildcard matching (Tengyun technology

Android First Learn

1.1g-4g1G Cellular Voice Call2G PHS using GSM, a military standard in the United States, was later civilian. can send text messages, the Internet URL is not www, is wap.baidu.com3G can access the Internet, directly with the WWW can be accessed

Hibernate annotation Properties Mappedby detailed

Mappedby:1> only onetoone,onetomany,manytomany on the Mappedby attribute, Manytoone does not exist;The 2>mappedby tag must be defined in the owning party, he points to the owning party;The meaning of 3>mappedby, should be understood as, the owner

IOS screen Adaptation

#define WIDTH cgrectgetwidth ([UIScreen mainscreen].bounds) #define HEIGHT cgrectgetheight ([UIScreen mainscreen]. bounds) #define SCREEN [UIScreen mainscreen].bounds#define Autosizescalex (width>480? width/320.0:1.0) #define Autosizescaley (width>48

Application MyTest have not been registered. This was either due to a require () error during initialization or failure to call appregistry.registercomponent.

Run React-native project times wrong.Note: The project was originally good, again run the errorThere is a solution, but I don't know what the reason is. I would like to have children's shoes that know the specific reasons to addThe first case: it's

Nagios Configuration and use

First, install NagiosYum Install-y epel-releaseYum install-y httpd nagios nagios-plugins nagios-plugins-all Nrpe Nagios-plugins-nrpe(where httpd as the web-side interface for Nagios)You can also use the HTTPD tool to generate Nagios login

Android Driver Write LED-NDK program

1. First write the Linux kernel module LED#include #include#include#include#include#include#include#includeModule_license ("GPL");#defineGpm4con 0x110002e0#defineGpm4dat 0x110002e4#defineled_on _iow (' G ', 0,int)#defineLed_off _iow (' G ',

Analysis of the mapper.xml of MyBatis

SelectID: Method name, in the same mapper.xml, to maintain a uniqueParameterType: Specifies the input parameter type, is not required, and if not specified, MyBatis is automatically recognized (recommended).Resulttype: The return value type (mapping

iOS speech synthesis

In IOS7, Apple has introduced TTS technology that enables speech synthesis without the need for a network environment.The main APIs for iOS7 speech synthesis are as follows:1, Avspeechutterance, is the basic unit of speech synthesis, which

"A first Course in the Abstract Algebra with Applications"-chaper1-number theory

As I have introduced many number theory in other columns, here in the "Basic Abstract Algebra Tutorial" column, the way Chaper1 number theory is introduced in this chapter is less "introductory".First of all, it is very important to introduce a

Android Environment Setup

Android Basics with Eclipse build Android development environment and create first Android project (Windows platform)First, build the Android development environmentGetting ready: Download Eclipse, JDK, Android SDK, ADT Plugin:

Android to achieve mobile phone vibration function

Interface: Using the Weight property, can be better to transplant to the tablet.Layout code:Xmlns:tools= "Http://schemas.android.com/tools"Android:layout_width= "Match_parent"android:layout_height= "Match_parent"android:orientation=

Issues to be aware of when Android creates custom View properties (attrs)

Customizing View properties is not difficult, you can refer to the official documentationHttps://developer.android.com/training/custom-views/create-view.htmlBut you need to pay attention to a problem, otherwise you may waste a lot of time.

How iOS detects project ad identifiers

Terminal(1), CD project directory to the terminal.(2), then enterGrep-r Advertisingidentifier.If there is an ad identifier, the location is displayed. Modify the corresponding file according to the location.Currently encountered is SHARESDK under

android--Memory Leak Check

Today on the subway saw a good memory leak simple Check the article, feel good yo, memory leaks is really a headache for every programmer, here to study a bit ^ ^I. Common garbage collection AlgorithmsSee articleReference Counting MethodThe

Xcode8: "Subsystem:com.apple.UIKit, category:hideventfiltered, enable_level:0" warning

Run Xcode8 encountered this warning:SubsystemCom. Apple. UIKit, category:hideventfiltered, Enable_level:0, Persist_level:0, Default_ttl:0, Info_ttl:0, Debug_ttl:0, Generate_symptoms:0, Enable_oversize:1, Privacy_setting:2,

JS to determine whether to come from mobile phone access, and jump

varBrowsername_ =navigator.useragent; if(Browsername_.indexof ("IPad") 0&&browsername_.indexof ("Windows NT") 0&&browsername_.indexof ("Macintosh") 0){ if(Browsername_.indexof ("Linux") >0){ if(Browsername_.indexof ("Mobile"

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