Unity 3d+iOS,AR功能的交互和相互之间的通信,
3个Errors,提示信息如下:
Undefined symbols for architecture armv7:
"__PressButton1", referenced from:
_SDK__PressButton1_m1275187896 in Bulk_Assembly-CSharp_0.o
(maybe you meant: _SDK__PressButton1_m1275187896)
"__PressButton0", referenced from:
_SDK__PressButton0_m1785722073 in Bulk_Assembly-CSharp_0.o
(maybe you meant: _SDK__PressButton0_m1785722073)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
原因:
Unity调用Xcode封装的函数,声明时需要用extern "C";
可以在UnityAppController.mm中写如下代码:
extern "C" void _PressButton0(char str[])
{
NSString * yy = [NSString stringWithCString:str encoding:NSUTF8StringEncoding];
NSLog(@"%@",yy);
UIAlertView *alert = [[UIAlertView alloc] init];
[alert setTitle:yy];
[alert setMessage:@"你打开了第一个视图"];
[alert addButtonWithTitle:@"确定"];
[alert show];
}
extern "C" void _PressButton1(char str1[])
{
NSString * yy = [NSString stringWithCString:str1 encoding:NSUTF8StringEncoding];
NSLog(@"%@",yy);
UIAlertView *alert = [[UIAlertView alloc] init];
[alert setTitle:yy];
[alert setMessage:@"点击了第二个按钮"];
[alert addButtonWithTitle:@"确定"];
[alert show];
}
在C#中定义的函数为:
private static extern void _PressButton0 (string str);
private static extern void _PressButton1 (string str1);
3个Errors,提示信息如下:
Undefined symbols for architecture armv7:
"__PressButton1", referenced from:
_SDK__PressButton1_m1275187896 in Bulk_Assembly-CSharp_0.o
(maybe you meant: _SDK__PressButton1_m1275187896)
"__PressButton0", referenced from:
_SDK__PressButton0_m1785722073 in Bulk_Assembly-CSharp_0.o
(maybe you meant: _SDK__PressButton0_m1785722073)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
原因:
Unity调用Xcode封装的函数,声明时需要用extern "C";
可以在UnityAppController.mm中写如下代码:
extern "C" void _PressButton0(char str[])
{
NSString * yy = [NSString stringWithCString:str encoding:NSUTF8StringEncoding];
NSLog(@"%@",yy);
UIAlertView *alert = [[UIAlertView alloc] init];
[alert setTitle:yy];
[alert setMessage:@"你打开了第一个视图"];
[alert addButtonWithTitle:@"确定"];
[alert show];
}
extern "C" void _PressButton1(char str1[])
{
NSString * yy = [NSString stringWithCString:str1 encoding:NSUTF8StringEncoding];
NSLog(@"%@",yy);
UIAlertView *alert = [[UIAlertView alloc] init];
[alert setTitle:yy];
[alert setMessage:@"点击了第二个按钮"];
[alert addButtonWithTitle:@"确定"];
[alert show];
}
在C#中定义的函数为:
private static extern void _PressButton0 (string str);
private static extern void _PressButton1 (string str1);