问题描述

我正在尝试做半页卷曲功能.这是我正在使用的代码:

i am trying to do the half page curl feature. This is the code I am using:

#import <QuartzCore/QuartzCore.h>


CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setDuration:1.0f];
[animation setTimingFunction:UIViewAnimationCurveEaseInOut];
[animation setType:(notCurled ? @"mapCurl" : @"mapUnCurl")];
[animation setRemovedOnCompletion:NO];
[animation setFillMode: @"extended"];
[animation setRemovedOnCompletion: NO];
notCurled = !notCurled;

但是我遇到以下错误

Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_CATransition", referenced from:
      objc-class-ref in MyMapViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)


  "_OBJC_CLASS_$_CATransition", referenced from:


      objc-class-ref in SJMapViewController.o


ld: symbol(s) not found for architecture i386


clang: error: linker command failed with exit code 1 (use -v to see invocation)

我该如何解决?

推荐答案

您的应用程序抱怨找不到 CATransition 符号.

your app is complaining it can not find CATransition Symbol.

您是否将 QuartzCore 框架添加到您的应用程序中?

Did you add the QuartzCore framework to your app?

如果不添加:转到您的目标设置 -> 构建阶段 -> 链接二进制文件 -> 选择 + 按钮并选择 QuartzCore.

If not add it: go to your target settings -> build phases -> link binary -> select the + button and select QuartzCore.

然后将其导入需要使用的地方:

then import it where you need to use it:

      #import <QuartzCore/QuartzCore.h>

这篇关于链接器命令因体系结构 i386 的未定义符号而失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！