iOS开发中常用第三方库的使用和配置-GDataXML


这篇文章旨在给自己以后需要时能及时的查到,省得每次都去baidu.

1. xml解析库-GDataXML
参考文章:http://blog.csdn.net/tangren03/article/details/7868246
GDataXML下载地址:
(1)GDataXML.h/m文件
http://code.google.com/p/gdata-objectivec-client/source/browse/trunk/Source/XMLSupport/
(2)DGataDefines.h GDataTargetNamespace.h 文件
http://code.google.com/p/gdata-objectivec-client/source/browse/trunk/Source/

配置过程:
(1).引入GDataXML(4个文件)
<arc模式下>.对GDataXML.m增加非arc注释 -fno-objc-arc
(2).添加系统库 libxml2.dylib
(3).Head Search Path中添加 /usr/include/libxml2
(4).Other linker flags中添加 -lxml2
(5).xml格式
==================================
<?xml version="1.0" encoding="utf-8"?> 
<Users> 
    <User id="001"> 
        <name>Ryan</name> 
        <age>24</age> 
    </User> 
    <User id="002"> 
        <name>Tang</name> 
        <age>23</age> 
    </User> 
</Users>
==================================
(6).应用
==================================
//获取工程目录的xml文件 
    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"users" ofType:@"xml"]; 
    NSData *xmlData = [[NSData alloc] initWithContentsOfFile:filePath]; 
     
    //使用NSData对象初始化 
    GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithData:xmlData  options:0 error:nil]; 
     
    //获取根节点(Users) 
    GDataXMLElement *rootElement = [doc rootElement]; 
     
    //获取根节点下的节点(User) 
    NSArray *users = [rootElement elementsForName:@"User"]; 
     
    for (GDataXMLElement *user in users) { 
        //User节点的id属性 
        NSString *userId = [[user attributeForName:@"id"] stringValue]; 
        NSLog(@"User id is:%@",userId); 
         
        //获取name节点的值 
        GDataXMLElement *nameElement = [[user elementsForName:@"name"] objectAtIndex:0]; 
        NSString *name = [nameElement stringValue]; 
        NSLog(@"User name is:%@",name); 
         
        //获取age节点的值 
        GDataXMLElement *ageElement = [[user elementsForName:@"age"] objectAtIndex:0]; 
        NSString *age = [ageElement stringValue]; 
        NSLog(@"User age is:%@",age); 
        NSLog(@"-------------------"); 
    }
==================================

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