objective c - Json data is not updated in uitableview ios? -



objective c - Json data is not updated in uitableview ios? -

i’ building ios article reading app using storyboards.i’m using afnetworking library parse json in table view.

i facing problem updated articles not displaying in table view means if in json new articles added not updated in table view.

here code:

- (void)viewdidload { [super viewdidload]; [self.tableview reloaddata]; x=2; tempjson = [[nsmutablearray alloc] init]; [self.tableview reloaddata]; nsstring *jsonlink=[nsstring stringwithformat:@"http://cccccc.com/json.php?token=hashg156349&page=1"]; nsurl *url = [[nsurl alloc] initwithstring:jsonlink]; nsmutableurlrequest *request = [nsmutableurlrequest requestwithurl:url cachepolicy:nsurlrequestreturncachedataelseload timeoutinterval:30.0]; [request settimeoutinterval:120]; afhttprequestoperation *operation = [[afhttprequestoperation alloc] initwithrequest:request]; operation.responseserializer = [afjsonresponseserializer serializer]; [operation setcompletionblockwithsuccess:^(afhttprequestoperation *operation, id responseobject) { dispatch_async(dispatch_get_global_queue(dispatch_queue_priority_default, 0), ^{ nsarray *jsonarray = (nsarray *)responseobject; dispatch_async(dispatch_get_main_queue(), ^{ (nsdictionary *dic in jsonarray) { json *json = [[json alloc] initwithdictionary:dic]; [tempjson addobject:json]; } self.jsons = [[nsarray alloc] initwitharray:tempjson]; // tempninjas = nil; [self.tableview reloaddata]; self.tableview.separatorcolor = [uicolor colorwithred:190/255.0 green:190/255.0 blue:190/255.0 alpha:1.0]; }); }); } failure:^(afhttprequestoperation *operation, nserror *error) { uialertview *alertview = [[uialertview alloc] initwithtitle:@"error" message:[error localizeddescription] delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil]; [alertview show]; }]; [operation start]; }

first seek phone call info server , fetch info . after load table view fetched info this.

-(void)viewwillappear{ x=2; tempjson = [[nsmutablearray alloc] init]; nsstring *jsonlink=[nsstring stringwithformat:@"http://cccccc.com/json.php?token=hashg156349&page=1"]; nsurl *url = [[nsurl alloc] initwithstring:jsonlink]; nsmutableurlrequest *request = [nsmutableurlrequest requestwithurl:url cachepolicy:nsurlrequestreturncachedataelseload timeoutinterval:30.0]; [request settimeoutinterval:120]; afhttprequestoperation *operation = [[afhttprequestoperation alloc] initwithrequest:request]; operation.responseserializer = [afjsonresponseserializer serializer]; [operation setcompletionblockwithsuccess:^(afhttprequestoperation *operation, id responseobject) { dispatch_async(dispatch_get_global_queue(dispatch_queue_priority_default, 0), ^{ nsarray *jsonarray = (nsarray *)responseobject; dispatch_async(dispatch_get_main_queue(), ^{ (nsdictionary *dic in jsonarray) { json *json = [[json alloc] initwithdictionary:dic]; [tempjson addobject:json]; } self.jsons = [[nsarray alloc] initwitharray:tempjson]; // tempninjas = nil; self.tableview.separatorcolor = [uicolor colorwithred:190/255.0 green:190/255.0 blue:190/255.0 alpha:1.0]; }); }); } failure:^(afhttprequestoperation *operation, nserror *error) { uialertview *alertview = [[uialertview alloc] initwithtitle:@"error" message:[error localizeddescription] delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil]; [alertview show]; }]; [operation start]; [self.tableview reloaddata]; }

ios objective-c json uitableview afnetworking

Comments

Post a Comment

Popular posts from this blog

Delphi change the assembly code of a running process -

Delphi change the assembly code of a running process - i'm trying alter address 00741fa5 has push test.009e721c . alter push test.009e71c8 . procedure callback; asm force $9e71c8 end; procedure tform2.btn1click(sender: tobject); var ppid :dword; pprocess : cardinal; begin getwindowthreadprocessid(findwindow(nil,pchar('test')), @ppid); pprocess := openprocess(process_all_access, false, ppid); injectasm(pprocess, $741fa5, 10, integer(@callback), 0); end; here injectasm function (with error checking) function injectasm(process: longword; injectaddress, injectsize, codeaddress, codesize : integer): pointer; var csize, rsize : integer; replaced : array of byte; jmp : array [0..4] of byte; jmpaddress : integer; nopv : byte; : integer; nbr: ulong_ptr; begin //injectsize must equal or greater 5, because need space our //(far) jmp wwxxyyzz instruction //if there's no space, inject in place of few instructions if injectsize ...
Read more

json - Hibernate and Jackson (java.lang.IllegalStateException: Cannot call sendError() after the response has been committed) -

json - Hibernate and Jackson (java.lang.IllegalStateException: Cannot call sendError() after the response has been committed) - hello have problem hibernate , jackson. have 2 pojos @entity @table(name = "users") public class user implements serializable { static final long serialversionuid = 4235637833262722256l; @id @generatedvalue private int id; @column(name = "creation_date") private date creationdate; @column(name = "first_name") private string firstname; @column(name = "last_name") private string lastname; @version @column(name = "version") private int version; @column(name = "e_mail") private string email; @column(name = "enabled") private boolean enabled; @column(name = "login") private string login; @column(name = "password") private string password; @jsonmanagedreference("role") @onetomany(mappedby = "user", cascade = cascadetype.all,fetch = fetchtyp...
Read more

C++ 11 "class" keyword -

C++ 11 "class" keyword - i've started using c++ 11 little bit more , have few questions on special uses of class keyword. know it's used declare class, there's 2 instances have seen don't understand: method<class t>(); and class class_name *var; why precede typename keyword class in first example, , keyword pointer in sec example? that known elaborated type specifier , necessary when class name "shadowed" or "hidden" , need explicit. class t { }; // love of god don't t t; t t2; if compiler smart, give these warnings: main.cpp:15:5: error: must utilize 'class' tag refer type 't' in scope t t2; ^ class main.cpp:14:7: note: class 't' hidden non-type declaration of 't' here t t; ^ if class not defined, deed forwards declaration. for example: template <typename t> void method() { using type = typename t::value_type; } method...
Read more