我正在尝试做半页卷曲功能。这是我正在使用的代码:
#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?
答案 0 :(得分:23)
您的应用抱怨它无法找到CATransition Symbol。
您是否已将QuartzCore框架添加到您的应用程序中?
如果没有添加:转到目标设置 - &gt;构建阶段 - &gt; link binary - &gt;选择+按钮并选择QuartzCore。
然后将其导入需要使用它的位置:
#import <QuartzCore/QuartzCore.h>