xcode - Writing and reading text files on the iPhone -

as practice, trying write app similar built-in notes app.
cannot figure out how save file , display in uitableview.
right now, have uitextview user can type in. have save button.
when user taps save button, want save it, , later have displayed in table view.
lost if know of relevant tutorials etc. appreciated.

as noted commenters in real world, you're going want @ core data or other data persistence strategy. if you're dead set on pursuing learning experience, should solve problem:

- (void)writestringtofile:(nsstring*)astring {      // build path, , create if needed.     nsstring* filepath = [nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes) objectatindex:0];     nsstring* filename = @"mytextfile.txt";     nsstring* fileatpath = [filepath stringbyappendingpathcomponent:filename];      if (![[nsfilemanager defaultmanager] fileexistsatpath:fileatpath]) {         [[nsfilemanager defaultmanager] createfileatpath:fileatpath contents:nil attributes:nil];     }      // main act...     [[astring datausingencoding:nsutf8stringencoding] writetofile:fileatpath atomically:no]; }  - (nsstring*)readstringfromfile {     // build path...    nsstring* filepath = [nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes) objectatindex:0];    nsstring* filename = @"mytextfile.txt";    nsstring* fileatpath = [filepath stringbyappendingpathcomponent:filename];     // main act...    return [[[nsstring alloc] initwithdata:[nsdata datawithcontentsoffile:fileatpath] encoding:nsutf8stringencoding] autorelease]; }