解决方案:
必要的设置(Framework Target对应的BuildSetting):
Defines Module - YES
Product Module Name - framework名称
Install Objective-C Compatibility Header - YES
Objective-C Generated Interface Header - framework名称-Swift
Objective-C Bridging Header - framework名称/ProductModuleName-Bridging-Header.h
#import "projectName-Swift.h" 解决