ios - Matching 2 NSString values between class methods -


i understand can't pass instance variables within class methods, no longer confused difference between two.

hence little stuck.

i have 2 class methods , can both take nsstring argument.

is there anyway can matched up? because 1 class method has string url needs opened in safari after button pressed , therefore @selector(openbrowser:) needs know url jwkobjectview01

please tell me there way this??

i have tried changing instance methods, app crashes when press button - trying working out:-)

thanks in advance. ps know start saying understand can't mix 2 classes - far know, maybe missing something?

//added code:

uiview class .h file

@interface jwkobjectview01 : uiview <uiwebviewdelegate> {     nsstring *string;     nsurl *url;      nsuserdefaults *defaults; }  + (jwkobjectview01 *)anyview:(uiview *)anyview                          title:(nsstring *)title                         weburl:(nsstring *)webstring;  + (void)openbrowser:(nsstring *)urlstring;

.m file

+ (jwkobjectview01 *)anyview:(uiview *)anyview                        title:(nsstring *)title                       weburl:(nsstring *)webstring {     jwkobjectview01 *anotherview = [[jwkobjectview01 alloc] initwithframe:cgrectmake(0,0,320,200)];     anotherview.backgroundcolor = [uicolor yellowcolor];      [anyview addsubview:anotherview];      uibutton *button = [uibutton buttonwithtype:uibuttontyperoundedrect];     button.frame = cgrectmake(20, 20, 100, 100);      [button settitle:title forstate:uicontrolstatenormal];     [button addtarget:self action:@selector(openbrowser:) forcontrolevents:uicontroleventtouchupinside];      [anotherview addsubview:button];      return anotherview; }  + (void)openbrowser:(nsstring *)urlstring; {      //this stuck , need variable - weburl:(nsstring *)webstring -       nsurl *url = [nsurl urlwithstring:urlstring];      [[uiapplication sharedapplication] openurl:url]; }

.m file view controller

-(void)viewdidload   {      [jwkobjectview01 anyview:self.view title:@"open" weburl:@"http://google.com"];   }

use static variable url. initialize in initialize method (that not init method). can of course add method sets static varialbe's value.

a static varialbe, class variables in other languages, exists once @ runtime.

but no class variables. naming conflicts when name used other static variables in other classes too. therefore make youself familiar singleton pattern , consider using whenever there need static varialbe.

some people "abuse" application delegate object containter values of global character. may not "out of book" works fine , quite common. however, beleive far better off singleton.

all assumes related url carry same value @ time instances of jwkobjectview01.


Comments

Post a Comment

Popular posts from this blog

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

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