iPhone DrillDown - iphone

Question

Hai all. I have a tableView which lists the contents of my document directory. I have some zip files in that. If I touch a file in the tableView, the corresponding zip file is unzipped and extracted in a temporary directory(NSTemporaryDirectory()).
The problem is how to navigate the contents which I extracted in a tableView. If suppose, the extracted zip file contains folders, I should able to view them in a tableView. Actually the flow should be like a DrillDown.
I can able to extract the zip files, but problem is, have to navigate them in a tableView. Please give me some ideas or some source codes which helps my problem.
This is my didSelectRowAtIndexPath: part,
NSString *filePath = //filePath;
if([[NSFileManager defaultManager]fileExistsAtPath:filePath]) {
NSLog(#"File exists at path: %#",filePath);
} else {
NSLog(#"File does not exists at path: %#", filePath);
}
NSString *tmpDir =NSTemporaryDirectory();
ZipArchive *zip = [[ZipArchive alloc] init];
BOOL result = NO;
if([zip UnzipOpenFile:filePath]) {
//zip file is there
if ([zip UnzipFileTo:tmpDir overWrite:YES]) {
//unzipped successfully
NSLog(#"Archive unzip Success");
result= YES;
} else {
NSLog(#"Failure To Extract Archive, maybe password?");
}
} else {
NSLog(#"Failure To Open Archive");
}
if([[NSFileManager defaultManager]fileExistsAtPath:tmpDir isDirectory:&isDir] && isDir) {
NSLog(#"Its Folder");
//Prepare to tableview.
RootViewController *rvController =[[RootViewController alloc]initWithNibName:#"RootViewController"bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:rvController animated:YES];
}
But its not working. Its pushing the same contents in the document directory in the tableView
Please help me..
Thank you..

Answer 1

where do you tell your RootViewController to open a new path? For me it looks like you open the same RootViewController again with the old path so it's sure to open the same path again

Answer 2

You should add a property for setting the current file path to your controller class.
You can write a designated initializer like:
- (id)initWithDirectoryPath:(NSString*)path {
self = [super initWithNibName:#"DirectoryViewController" bundle:nil];
if (self != nil) {
self.directoryPath = path;
self.navigationItem.title = [path lastPathComponent];
}
}
Then you can create your view controller and push it on the navigation controller with:
DirectoryViewController *viewController = [[DirectoryViewController alloc] initWithDirectoryPath:path];
[self.navigationController pushViewController:viewController animated:YES];
[viewController release];
Don't forget to release the VC!