随笔-XML数据解析-就是这几步

#import "XMLParser.h"

@implementation TUSprojectAppDelegate_iPhone

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    [self requestpushad];
}
-(void)requestpushad{
 pushdata=[[NSMutableData alloc] init];
 NSURL *url=[NSURL URLWithString:@"http://s3.amazonaws.com/imobile20110526/BrainwaveTuner2015/tunerpushAd.xml"];
 ASIHTTPRequest * myRequest = [ASIHTTPRequest requestWithURL:url];
 [myRequest setDelegate:self];
 [myRequest startAsynchronous];
}
- (NSString *)dataFilePath:(NSString *)name
{
 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
 NSString *documentsDirectory = [paths objectAtIndex:0];
 return [documentsDirectory stringByAppendingPathComponent:name];
}
#pragma mark -
#pragma mark Download support (ASIHTTPRequestDelegate)
//断点下载开始
- (void)requestStarted:(ASIHTTPRequest *)request
{
 
}
//服务器有响应了
- (void)request:(ASIHTTPRequest *)request didReceiveResponseHeaders:(NSDictionary*)responseHeaders
{
 [self.pushdata setLength:0];
}
- (void)request:(ASIHTTPRequest*)request didReceiveData:(NSData *)data
{
 [self.pushdata appendData:data];
}
//下载完成
- (void)requestFinished:(ASIHTTPRequest *)request
{
 NSArray *languageArray = [NSLocale preferredLanguages];
 NSString *language = [languageArray objectAtIndex:0];
 NSString *downloadPath = [self dataFilePath:@"tunnerpushAd.xml"];
 [self.pushdata writeToFile:downloadPath atomically:YES];
 NSURL *xURL = [NSURL fileURLWithPath:downloadPath isDirectory:NO];
 NSData *musciXmlData = [NSData dataWithContentsOfURL:xURL];
 XMLParser *musciXmlparser = [[XMLParser alloc] initWithData:musciXmlData];
 [musciXmlparser setDelegate:musciXmlparser];
 [musciXmlparser parse];
 NSMutableArray *array = [[NSMutableArray alloc] initWithArray:musciXmlparser.array];
 NSMutableDictionary *dicAD=[NSMutableDictionary dictionaryWithDictionary:[array objectAtIndex:0]];
// NSLog(@"dicAD=======%@",dicAD);
 if (array!=nil&&dicAD!=nil) {
 NSString *timeString=[[NSUserDefaults standardUserDefaults]objectForKey:@"pushupdate"];
 
 if (![timeString isEqualToString:[dicAD objectForKey:@"pushupdate"]]) {
 
 if([[dicAD objectForKey:@"isshow"] isEqualToString:@"on"]){
 
 NSString *title=[NSString stringWithFormat:@"title_%@",language];
 NSString *desc=[NSString stringWithFormat:@"description_%@",language];
 
 NSMutableDictionary *adDic=[NSMutableDictionary dictionaryWithCapacity:0];
 [adDic setObject:[dicAD objectForKey:title] forKey:@"title"];
 [adDic setObject:[dicAD objectForKey:desc] forKey:@"description"];
 [adDic setObject:[dicAD objectForKey:@"applink"] forKey:@"applink"];
 [adDic setObject:[dicAD objectForKey:@"pushupdate"] forKey:@"pushupdate"];
// [adDic setObject:[dicAD objectForKey:@"isshow"] forKey:@"isshow"];
 
 
 logodata=[[NSMutableData alloc] init];
 NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[dicAD objectForKey:@"logoImage"]]] delegate:self];
 
 [[NSUserDefaults standardUserDefaults] setObject:adDic forKey:@"AdInfoDicc"];
 [[NSUserDefaults standardUserDefaults] setObject:@"YES" forKey:@"showAD"];
 }else
 {
 [[NSUserDefaults standardUserDefaults] setObject:@"NO" forKey:@"showAD"];
 }
 }
 [self.pushdata setLength:0];
 }
}
//下载出错
- (void)requestFailed:(ASIHTTPRequest *)request
{
 [self.pushdata setLength:0];
}
#pragma mark -
#pragma mark Download support (NSURLConnectionDelegate)
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
 [self.logodata appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{
 self.logodata = nil;
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
 
 // NSString *logoFileName = [self dataFilePath:@"pushAdlogo.plist"];
 // NSDictionary *logoDic = [NSDictionary dictionaryWithObject:self.logodata forKey:@"pushlogo"];
 // [logoDic writeToFile:logoFileName atomically:YES];
 [[NSUserDefaults standardUserDefaults]setObject:self.logodata forKey:@"logoDic"];
 [[NSUserDefaults standardUserDefaults]synchronize];
 [self.logodata setLength:0];
}
@end

@implementation ViewControlleriPhone

-(void)viewWillAppear:(BOOL)animated
{
 NSMutableDictionary *adDicc = [NSMutableDictionary dictionaryWithCapacity:0];
 adDicc = [[NSUserDefaults standardUserDefaults]objectForKey:@"AdInfoDicc"];
 
 if ([[[NSUserDefaults standardUserDefaults]objectForKey:@"showAD"]isEqualToString:@"YES"]){
 self.bombImageView.image=[UIImage imageWithData:[[NSUserDefaults standardUserDefaults]objectForKey:@"logoDic"]];
 NSLog(@"logoimage = %@",[[NSUserDefaults standardUserDefaults]objectForKey:@"logoDic"]);
 self.bombLabel.text = [adDicc objectForKey:@"title"];
 self.bombTextView.text = [adDicc objectForKey:@"description"];
 
 if ([[[NSUserDefaults standardUserDefaults]objectForKey:@"begin"]isEqualToString:@"yes"]) {
 self.bombView.hidden = NO;
 [self.view bringSubviewToFront:self.bombView];
 }else
 {
 self.bombView.hidden = YES;
 }
 }else
 {
 self.bombView.hidden = YES;
 }
}
@end

（编辑：李大同）

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