user interface - iOS: UITableView in popover and seeing "double vision" effect -

-

i'm working on ipad app , @ points, need show popover options user pick from. this, use uitableview in uipopovercontroller. problem that, on ipad (not on simulator), when scrolling tableview, sort of "double vision" effect, appears 2 sets of of list exist. 1 stationary, , 1 scrolls , down.

i construct popover this: 

self.fclasstypelist = [[nsmutablearray alloc] init]; [self.fclasstypelist removeallobjects];  nsuinteger stringlength = 0; (populate self.fclasstypelist, , set stringlength size of longest entry)  [self setcontentsizeforviewinpopover:cgsizemake(stringlength * 15.0f, [self.fclasstypelist count] * 30)];  cgfloat tableborderleft = 5; cgfloat tableborderright = 5; cgrect viewframe = self.view.frame; viewframe.size.width -= tableborderleft + tableborderright; // reduce width of table  self.flistofitems = [[uitableview alloc] initwithframe:viewframe style:uitableviewstyleplain]; self.flistofitems.delegate = self; self.flistofitems.datasource = self; [self.view addsubview:self.flistofitems];

i put in viewdidlayoutsubviews(…) part of view controller, maybe should put somewhere else? not sure why happens on actual machine, not simulator.

-viewdidlayoutsubviews weird place put allocations because method can called multiple times. far main issue goes, believe should move allocations -init method, , move layout code -viewwillappear method.

- (id)init {     self = [super init];     if (self)     {         self.fclasstypelist = [[nsmutablearray alloc] init];          self.flistofitems = [[uitableview alloc] initwithframe:cgrectzero style:uitableviewstyleplain];         self.flistofitems.delegate = self;         self.flistofitems.datasource = self;         [self.view addsubview:self.flistofitems];     }      return self; }  - (void )viewwillappear:(bool)animated {     [super viewwillappear:animated];      nsuinteger stringlength = 0;      cgfloat tableborderleft = 5;     cgfloat tableborderright = 5;     cgrect viewframe = self.view.frame;     viewframe.size.width -= tableborderleft + tableborderright; // reduce width of table     self.flistofitems.frame = viewframe;      [self setcontentsizeforviewinpopover:cgsizemake(stringlength * 15.0f, [self.fclasstypelist count] * 30)]; }

this promotes better memory management.

as added bonus, recommend refactor [self setcontentsizeforviewinpopover:cgsizemake(stringlength * 15.0f, [self.fclasstypelist count] * 30)]; method setter method of fclasstypelist. better call -viewwillappear: in same setter method instead. promote scalability (or else) continues build upon code later on.

it's little confusing see you're trying accomplish in code because it's hardcoded let me know if i'm missing mark you're looking (w/ explanation why) , i'll make edit.

cheers


Comments

Post a Comment

Popular posts from this blog

C# random value from dictionary and tuple -

-
i have following code, , need random item contains string "region_1" dictionary. public static dictionary<int, tuple<string, int, currencytype>> itemarray = new dictionary<int, tuple<string, int, currencytype>>() { { 0xb3e, new tuple<string, int, currencytype>("region_1", 1500, currencytype.fame) } }; public static int generateitemid(string shopid) { var generateditem = itemarray.elementat(new random().next(0, itemarray.count)).key; } how select this? it's not possible efficiently... first create static random @ class level... prevent non-random behaviour if run query on short period of time... (it's seeded discrete clock) static random rnd = new random(); then: var item = itemarray.values .where(t => t.item1 == shopid) .orderby(_ => rnd.next()) .firstordefault()
Read more

.htaccess - htaccess convert request to clean url and add slash at the end of the url -

-
ok , searched more 4 days , more 20 posts here in stach or in websites without kind of success first here htaccess file rewriteengine on rewriterule ^([a-za-z0-9_]+)/?$ index.php?page=$1 [nc] rewriterule ^([a-za-z0-9_]+)\/([a-za-z0-9_]+)\/?$ index.php?page=$1&action=$2 [nc] i tried many codes 1 worked me can call request , works me www.example.com/pagename => www.example.com/index.php?page=pagename here questions , please provide me information "in detail" understand code well 1- how convert request automatically www.example.com/index.php?page=pagename www.example.com/pagename 2- if tried add slash @ end shows me page without images or styling mean www.example.com/pagename => works www.example.com/pagename/ => doesn't work that's :) for first part need 301 rule this: rewritecond %{the_request} /index\.php\?page=([^\s&]+) [nc] rewriterule ^ /%1? [r=301,l] for second part use absolute path in css, js, images files r...
Read more

cgi - How do I interpret URLs without extension as files rather than missing directories in nginx? -

-
so i'm trying install zoneminder , have run under nginx, has few compiled files need run using fast-cgi. these files lack extension. if file has extension, there no issue , nginx interprets file , return 404 if can't find it. if has no extension, assume it's directory , return 404 when can't find sort of index page. here have now: # security camera domain. server { listen 888; server_name mydomain.com; root /srv/http/zm; # enable php support. include php.conf; location / { index index.html index.htm index.php; } # enable cgi support. location ~ ^/cgi-bin/(.+)$ { alias /srv/cgi-bin/zm/; fastcgi_pass unix:/run/fcgiwrap.sock; fastcgi_param script_filename $document_root/$1; include fastcgi.conf; } } the idea is, under cgi-bin directory goes through fastcgi pipe. any idea on howi can fix this? upon closer inspection, realized zoneminder has 2 cgi sc...
Read more