ios - UICollectionViewCells not appearing in a UICollectionView -


as title suggests have uicollectionview hooked uiviewcontroller through ib. have uicollectionview subclass called imagecell. in viewcontroller viewdidload method, register class this:

cgrect collectionviewrect = cgrectmake(384, 60, 728, 924); uicollectionviewflowlayout *flow = [[uicollectionviewflowlayout alloc] init]; imagecollectionview = [[uicollectionview alloc] initwithframe:collectionviewrect collectionviewlayout:flow]; [imagecollectionview registerclass:[imagecell class] forcellwithreuseidentifier:@"cell"]; imagecollectionview.delegate = self; imagecollectionview.datasource = self;

i call method called getphotos in viewdidappear (for ui reasons) gets photos service , call [imagccollectionview reloaddata]; inside getphotos.

then in cellforitematindexpath following:

imagecell *cell = [collectionview dequeuereusablecellwithreuseidentifier:@"cell" forindexpath:indexpath]; grkalbum *album = [albums objectatindex:indexpath.item]; cell.titlelabel.text = album.name; return cell;

i know not doing wrong here because method being called , cell not nil , neither album.

so, when run of code, uicollectionview appears, nothing in it. can see background color of collectionview. @ appreciated.

note: did not create xib imagecell class when made , using storyboards.

there ways debug situation.

  1. register uicollectionviewcell class instead of customcell , set cell's background color in cellforitem...

  2. if cells appearing in step 1 try use own cell class , set background

are using storyboard? then..

you dont have register cell collection view. can use prototype cell, give proper id cell.you can design in prototype cell. custom class may not needed in cases.


Comments

Post a Comment

Popular posts from this blog

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());...
Read more

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers ...
Read more

keyboard - Smiles and long press feature in Android -

i've created android keyboard. how add features inserting smilies, , using long keypresses display symbols? to create long-press behavior allows select several options pop-up menu, follow guide (specifically pop-up menu section): http://developer.android.com/guide/topics/ui/menus.html smileys (also known emoticons) combination of keys, understood programs , parsed same way. have do, when clicks smiley face on keyboard, simulate pressing of key combination matching emoticon. example, when clicks smiley, should simulate key presses ':' , ')' :). here's list of emoticons: http://en.wikipedia.org/wiki/list_of_emoticons
Read more