使用oc的block方法回调

使用场景-如网络请求成功失败结果回调，类似java中的listener interface接口回调

• 方法

- (void)block:(NSString*)msg
        success:(void(^)(NSDictionary *dict)) success
        failure:(void(^)(NSString *error, int code)) failure{
    
    NSLog(@"block(),msg:%@", msg);
    NSDictionary *dict = @{
        @"name":@"catface"
    };
    success(dict);
    failure(@"error", -0x99);
    
}

• 使用

- (IBAction)testBlock:(id)sender {
    [self block:@"hello world" success:^(NSDictionary *dict) {
        NSLog(@"success(),dict:%@", dict);
    } failure:^(NSString *error, int code) {
        NSLog(@"failure(),error:%@,code:%d", error, code);
    }];
}

• 结果展示