Protocol Buffers在Objective-C上的使用

来源：互联网发布：泛型编程与stl 编辑：程序博客网时间：2024/06/05 16:44

1.下载protobuf-ios https://github.com/mingchen/protobuf-ios，保存到本地目录protobuf
2.打开protobuf目录，编译protobuf，具体步骤见https://github.com/mingchen/protobuf-ios上的使用指南
3.编写addressbook.proto，有关protocol buffers参见https://developers.google.com/protocol-buffers/docs/style
// See README.txt for information and build instructions.
package tutorial;

option java_package = "com.example.tutorial";
option java_outer_classname = "AddressBookProtos";

message Person {
required string name = 1;
required int32 id = 2; // Unique ID number for this person.
optional string email = 3;

enum PhoneType {
MOBILE = 0;
HOME = 1;
WORK = 2;
}

message PhoneNumber {
required string number = 1;
optional PhoneType type = 2 [default = HOME];
}

repeated PhoneNumber phone = 4;
}

// Our address book file is just one of these.
message AddressBook {
repeated Person person = 1;
}

4.从addressbook.proto获取oc代码，执行以下命令:
protoc --objc_out=. addressbook.proto
会在当前目录生成Addressbook.pb.h和Addressbook.pb.m文件

5.Xcode新建一个Single View Application，名为ProtobufDemo

6.在ProtobufDemo下新建一个Group名为protobuf, protobuf下新建两个group分别为model、protobuf-ios
其中, 将第四步生成的Addressbook.pb.h,Addressbook.pb.m添加到model目录下
将第一步下载的protobuf-ios,Classes目录下的所有文件添加到protobuf-ios

7.在ProtobufDemo-Prefix.pch文件里，添加 #import <Foundation/Foundation.h>，注意在Xcode6上创建的工程默认是没有ProtobufDemo-Prefix.pch文件的，

需要手动创建，并设置Prefix Header参数

8.在ViewController里使用proton生成的类

<span style="background-color: rgb(255, 255, 255);"><span style="background-color: rgb(204, 204, 204);"><span style="font-size:14px;">- (void)viewDidLoad{    [super viewDidLoad];    Person_Builder *builder = [[Person_Builder alloc] init];    [builder setName:@"sword"];    [builder setId:12];    [builder setEmail:@"hjzhou@isoftstone.com"];    Person *person = [builder build];//    NSLog(@"send person name:%@ userid %d email %@", person.name, person.id, person.email);        Person_Builder *builder2 = [[Person_Builder alloc] init];    [builder2 setName:@"sword1"];    [builder2 setId:13];    [builder2 setEmail:@"hjzhou@isoftstone.co2m"];        Person *person2 = [builder2 build];    //    NSLog(@"send person2 name:%@ userid %d email %@", person2.name, person2.id, person2.email);    //    NSData *personData = [person data];    Person *receivePerson = [Person parseFromData:personData];    NSLog(@"receive person name:%@ userid %d email %@", receivePerson.name, receivePerson.id, receivePerson.email);    // Do any additional setup after loading the view, typically from a nib.}</span></span></span>

源代码:https://github.com/heavensword/ProtobufDemoForiOS

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