pch questions

PCH files can provide some convenience for our programming. is a header file that can be shared and accessed by all other source files in the project, and is suitable for placing global macro definitions and header files.Since Xcode6, the PCH file created by default has been removed, to reduce build time and also to lose convenienceXcode6 How to add a PCH header

1. Click Info.plist Right-click->new file->other->pch file to create PCH filesThe file name is set to: Project Name-prefix-click Create, created successfully.2. Set the PCH file pathSelect item->targets->build settings-> Search in the search box for "Prefix"->apple LLVM 8.0-languagePrecompile Prefix header is set to Yes;Right-

--to Xcode7 can solve this problem. Test.Find a good thing. This is the. pch file. My understanding is that he has stored the header files that we need in each controller, which eliminates the problem of importing the header files of different resources (such as third-party libraries) in different viewcontroller.First, on the Internet, we need to create such a. pch file in Xcode6. Steps:Project right--New F

New company, took over the project even PCH files are not, each need to use the screen when the width of the high, are now written. Now that I've met you, just say the PCH thing.1.command+n, open the new File window: ios->other->pch file, create a PCH document;2. Search for the Prefix header in building setting and cha

PCH file and how to manually configure it after xcode6.0Category: iphone2014-12-04 22:44 1020 People read reviews (0) favorites reportXcodepchThe use of PCH during development is a more efficient option. Xcode is automatically included in this file during the compilation process.This means that the contents of this file are visible to all of your. m files.Using this feature I usually do these things in this

IOS. pch When we create a new project, we will see a Prefix in the Supporting FIles file. the file ending with pch. pch is the "precompiled header", that is, the pre-compiled header file. Some codes that are not frequently modified in the project stored in the file, such as common framework header files, this aims to increase the compilation speed of the compiler

1. Starting from xcode6, Apple no longer provides automatically generated PCH files. To use these files, you must add them on your own. 2. Run Command + N in the project to create a new file. Select PCH file in other under the IOS template. 3. When naming the PCH file, I chose the same naming method as xcode5, where analyzerhd is my project name. Note that I

Case: Open source China iOS client When we create a new project, under the supporting files file will see a file ending with-prefix.pch, PCH full name is "precompiled Header", that is, the precompiled header file, the file stored in the project Some of the less frequently modified code, such as a commonly used framework header file, is intended to improve compiler compilation speed. We know that when we modify a file code in a project, the compiler d

PCH file one of the important role is that you can write some macro variables, and macro variables are mainly to judge the device, judge the system version of these.You need to manually build the PCH file in Xcode6.(1) First set up a PCH file(2) Set, so that the PCH file can be used, that is, the

The version behind Xcode is not recommended for use with PCH files at development time, but it can be configured if you still need to use a PCH file:1, with the shortcut key [CMD] + N new file, select the iOS other->pch file2. pch file named prefixheader.pch3. Once created, you can see this in the project4. Then find p

1.) Open your Xcode project. Under the supporting files directory, select File > New > File > IOS > Other > PCH File and click Next.2.) Give your PCH file a name testdemo-prefix.pch. For example, your project name is Testdemo, but the name of your PCH file should be testdemo-prefix.pch and then created;3.) Select the PCH