我需要解析这个xml文件
<?xml version="1.0" encoding="UTF-8"?>
<imageset>
<category>
<image>SQUIRREL</image>
<image>FOX</image>
<image>TIGER</image>
<image>LION</image>
</category>
</imageset>
我使用此代码来解析它。
- (void)viewDidLoad {
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:[NSData dataWithContentsOfFile:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"Config.xml"]]];
[super viewDidLoad];
[parser setDelegate:self];
[parser parse];
NSLog(@"test.......... %@",test);
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
if ([elementName isEqualToString:@"image"]) {
test = [[NSMutableArray alloc]init];
addelements = TRUE;
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
if ([elementName isEqualToString:@"image"]) {
addelements = FALSE;
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
[test addObject:string];
}
但它只添加了最后一个对象,在控制台中显示如下。
test.......... (
LION,
"\n\n",
"\n"
)
我需要在xml文件中添加所有图像名称,意思是{SQUIRREL,FOX,TIGER,LION}
我怎么办,请任何人帮助我。
提前感谢你。
答案 0 :(得分:3)
你的问题是这个方法:
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
if ([elementName isEqualToString:@"image"]) {
test = [[NSMutableArray alloc]init];
addelements = TRUE;
}
}
每次image
标记开始时,都会用新的NSMutableArray实例覆盖test
变量(泄漏前一个对象)。您需要将其更改为以下内容:
if (!test) test = [[NSMutableArray alloc]init];
即:只有在没有旧阵列的情况下才分配新阵列。
答案 1 :(得分:2)
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{
[mutableString release];
mutableString = [[NSMutableString alloc] init];
if ([elementName isEqualToString:@"image"]) {
if( !test ) test = [[NSMutableArray alloc] initWithCapacity: 10];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
if ([elementName isEqualToString:@"image"])
[test addObject: mutableString];
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
[mutableString appendString: string];
}
其中test和mutableString是在视图控制器的标题中声明的ivars
注意:这是非常简化的版本。
答案 2 :(得分:1)
@Mahesh Babu yes you can also add the image by giving the name only as for example......
[UIImage imageNamed:@"SQUIRREL.jpg"];