OC调用Swift类代理回调 - 全面指南

\u5728OC\u6587\u4ef6\u4e2d\u8c03\u7528Swift\u6587\u4ef6\u4e2d\u7684class\u7684\u4ee3\u7406\u56de\u8c03\uff0c\u9700\u8981\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\u64cd\u4f5c\uff1a\n\n1.\u9996\u5148\uff0c\u5728Swift\u6587\u4ef6\u4e2d\u521b\u5efa\u4e00\u4e2a\u4ee3\u7406\u534f\u8bae\uff08protocol\uff09\uff0c\u5b9a\u4e49\u9700\u8981\u5728OC\u6587\u4ef6\u4e2d\u8c03\u7528\u7684\u4ee3\u7406\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a\n\nswift\n@objc protocol MyDelegate {\n func didReceiveData(data: Any)\n}\n\n\n2.\u5728Swift\u6587\u4ef6\u4e2d\u521b\u5efa\u4e00\u4e2a\u7c7b\uff08class\uff09\uff0c\u5e76\u58f0\u660e\u4e00\u4e2a\u53ef\u9009\u7684\u4ee3\u7406\u5c5e\u6027\uff0c\u7528\u4e8e\u5b58\u50a8\u4ee3\u7406\u5bf9\u8c61\u3002\u4f8b\u5982\uff1a\n\nswift\nclass MyClass {\n weak var delegate: MyDelegate?\n \n func sendData() {\n // \u53d1\u9001\u6570\u636e\n delegate?.didReceiveData(data: someData)\n }\n}\n\n\n3.\u5728OC\u6587\u4ef6\u4e2d\u5bfc\u5165\u751f\u6210\u7684\u003cProductModuleName\u003e-Swift.h\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u5305\u542b\u4e86Swift\u6a21\u5757\u7684\u63a5\u53e3\u3002\u4f8b\u5982\uff0c\u5982\u679cSwift\u6587\u4ef6\u6240\u5728\u7684\u6a21\u5757\u540d\u79f0\u4e3aMyApp\uff0c\u5bfc\u5165\u65b9\u5f0f\u5982\u4e0b\uff1a\n\nobjc\n#import "MyApp-Swift.h"\n\n\n4.\u5728OC\u6587\u4ef6\u4e2d\u5b9e\u73b0Swift\u4ee3\u7406\u534f\u8bae\uff0c\u5e76\u8bbe\u7f6e\u4ee3\u7406\u5bf9\u8c61\u3002\u4f8b\u5982\uff1a\n\nobjc\n@interface MyObjCClass () \u003cMyDelegate\u003e\n@property (nonatomic, strong) MyClass *myClass;\n@end\n\n@implementation MyObjCClass\n\n- (instancetype)init {\n self = [super init];\n if (self) {\n self.myClass = [[MyClass alloc] init];\n self.myClass.delegate = self;\n }\n return self;\n}\n\n- (void)didReceiveData:(id)data {\n // \u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e\n}\n\n@end\n\n\n\u8fd9\u6837\u5c31\u5b8c\u6210\u4e86\u5728OC\u6587\u4ef6\u4e2d\u8c03\u7528Swift\u6587\u4ef6\u4e2dclass\u7684\u4ee3\u7406\u56de\u8c03\uff0c\u5e76\u5728Swift\u6587\u4ef6\u4e2d\u5904\u7406\u4ee3\u7406\u65b9\u6cd5\u7684\u8fc7\u7a0b\u3002