{"id":5054,"date":"2017-03-26T21:14:49","date_gmt":"2017-03-26T19:14:49","guid":{"rendered":"https:\/\/www.tomislavstankovic.com\/blog\/?p=5054"},"modified":"2019-01-05T19:56:08","modified_gmt":"2019-01-05T17:56:08","slug":"ionic2-prosljedivanje-parametara","status":"publish","type":"post","link":"https:\/\/www.tomislavstankovic.com\/blog\/ionic2-prosljedivanje-parametara\/","title":{"rendered":"Ionic 2 &#8211; proslje\u0111ivanje parametara izme\u0111u stranica"},"content":{"rendered":"<p>Kada se radi mobilna aplikacija pitanje je vremena kada \u0107e ona postati kompleksnija tj. imati vi\u0161e stranica izme\u0111u kojih \u0107e trebati postojati interaktivnost, a to podrazumijeva proslje\u0111ivanje nekih parametara s jedne stranice na drugu. <\/p>\n<p>Pod pretpostavkom da ve\u0107 imate pokrenut <a href=\"https:\/\/www.tomislavstankovic.com\/blog\/uvod-u-ionic-2\/\" target=\"_blank\"><em>Ionic 2<\/em><\/a> projekt mo\u017eemo krenuti dalje. <\/p>\n<h2>Kreiranje stranica<\/h2>\n<p>Za po\u010detak trebamo kreirati dvije stranice. Jedna \u0107e slu\u017eiti za prikaz svih korisnika  <span class=\"lang:sh decode:true  crayon-inline\">$ ionic g page korisnici<\/span>, a druga za prikaz jednog korisnika <span class=\"lang:sh decode:true  crayon-inline\">$ ionic g page korisnik<\/span>.<\/p>\n<h2>Servis za dohva\u0107anje korisnika<\/h2>\n<p>Na\u0161a aplikacija \u0107e komunicirati s <a href=\"https:\/\/www.tomislavstankovic.com\/blog\/jednostavan-nodejs-expressjs-rest-api\/\" target=\"_blank\">dva API-ja<\/a>. Jedan \u0107e dohva\u0107ati popis svih korisnika koji \u0107e se prikazivati na <span class=\"lang:xhtml decode:true  crayon-inline\">korisnici.html<\/span>  stranici, a drugi \u0107e dohva\u0107ati detalje jednog korisnika koji \u0107e se prikazivati na stranici <span class=\"lang:xhtml decode:true  crayon-inline\">korisnik.html<\/span>.<\/p>\n<p>Servis kreiramo naredbom  <span class=\"lang:sh decode:true  crayon-inline \" >$ ionic g provider Korisnici<\/span> <\/p>\n<p>Kao \u0161to se vidi iz dolje navedene funkcije  <span class=\"lang:js decode:true  crayon-inline \" >dohvatiKorisnika()<\/span>  ona zahtjeva parametar <span class=\"lang:js decode:true  crayon-inline \">a.id<\/span> koji je zapravo ID jednog korisnika.<\/p>\n<pre class=\"lang:js decode:true \" title=\"korisnici.ts\" >import { Injectable } from '@angular\/core';\r\nimport { Http } from '@angular\/http';\r\nimport 'rxjs\/add\/operator\/map';\r\n\r\n@Injectable()\r\nexport class KorisniciService {\r\n\r\n  constructor(public _http: Http) {\r\n    console.log('Korisnici Provider');\r\n  }\r\n\r\n   dohvatiKorisnike(a){\r\n    return this._http.get('http:\/\/localhost:3001\/api\/korisnici' a)\r\n                .map(res =&gt; res.json());\r\n   } \r\n\r\n   dohvatiKorisnika(a: any){\r\n    return this._http.post('http:\/\/localhost:3001\/api\/korisnik=' + a.id)\r\n                .map(res =&gt; res.json());  \r\n   }\r\n\r\n}<\/pre>\n<h2>Popis korisnika<\/h2>\n<p>Funkcija u 16. liniji proslje\u0111uje samo jedan parametar <span class=\"lang:js decode:true  crayon-inline\">id<\/span> koji nam je i potreban na sljede\u0107oj stranici jer prema tom parametru \u0107emo aktivirati API za dohva\u0107anje jednog korisnika koji je vezan uz taj parametar tj. uz taj ID.<\/p>\n<p>Funkcija u 18. liniji proslje\u0111uje \u010ditav objekt koji smo u ovom slu\u010daju nazvali  <span class=\"lang:js decode:true  crayon-inline\">test<\/span>.<\/p>\n<pre class=\"lang:xhtml mark:16,18 decode:true \" title=\"korisnici.html\" >&lt;ion-header&gt;\r\n  &lt;ion-navbar color=\"primary\"&gt;\r\n    &lt;button ion-button menuToggle&gt;\r\n      &lt;ion-icon name=\"menu\"&gt;&lt;\/ion-icon&gt;\r\n    &lt;\/button&gt;\r\n    &lt;ion-title&gt;Korisnici&lt;\/ion-title&gt;\r\n  &lt;\/ion-navbar&gt;\r\n&lt;\/ion-header&gt;\r\n\r\n\r\n&lt;ion-content padding&gt;\r\n\r\n&lt;ion-card *ngFor=\"let popis of popiskorisnika; let i=index\"&gt;\r\n  &lt;ion-card-header&gt;\r\n  &lt;!-- Proslje\u0111ivanje \"id\" parametra --&gt;\r\n  &lt;a (click)=\"korisnikPage({id:popis.id})\"&gt;{{popis.username}}&lt;\/a&gt; \r\n  &lt;!-- Proslje\u0111ivanje \"test\" objekta --&gt; \r\n  &lt;a (click)=\"korisnikPage({test:popis})\"&gt;{{popis.username}}&lt;\/a&gt;  \r\n  &lt;\/ion-card-header&gt;\r\n  &lt;ion-card-content&gt;\r\n    &lt;ul&gt;\r\n      &lt;li&gt;Username: {{popis.username}}&lt;\/li&gt;\r\n      &lt;li&gt;Email: {{popis.email}}&lt;\/li&gt;\r\n    &lt;\/ul&gt;\r\n  &lt;\/ion-card-content&gt;\r\n&lt;\/ion-card&gt;\r\n\r\n&lt;\/ion-content&gt;<\/pre>\n<p>U ovom kontroleru koristimo  <span class=\"lang:js decode:true  crayon-inline\">NavController<\/span> ugra\u0111enu <em>Ionic 2<\/em> klasu za navigaciju izme\u0111u stranica.<\/p>\n<pre class=\"lang:js mark:2,3,4,28,29,30 decode:true \" title=\"korisnici.ts\" >import { Component } from '@angular\/core';\r\nimport { NavController } from 'ionic-angular';\r\nimport { KorisniciService } from '..\/..\/providers\/korisnici';\r\nimport { KorisnikPage } from '.\/korisnik';\r\n\r\n@Component({\r\n  selector: 'korisnici-page',\r\n  providers: [KorisniciService],\r\n  templateUrl: 'korisnici.html'\r\n})\r\nexport class KorisniciPage {\r\n\r\n  popiskorisnika:any;\r\n  a:any;\r\n\r\n  constructor(public navCtrl: NavController, public _korisnici: KorisniciService) {\r\n\r\n     this._korisnici.dohvatiKorisnike(this.a).subscribe(res =&gt; {\r\n       this.popiskorisnika = res.popis_korisnika;\r\n  });\r\n\r\n  }\r\n\r\n  ionViewDidLoad() {\r\n    console.log('KorisniciPage');\r\n  }\r\n\r\n   korisnikPage(popiskorisnika){\r\n    this.navCtrl.push(KorisnikPage, popiskorisnika);\r\n  }\r\n\r\n}<\/pre>\n<h2>Jedan korisnik<\/h2>\n<p>U ovom kontroleru tako\u0111er koristimo <span class=\"lang:js decode:true  crayon-inline\">NavController<\/span> ugra\u0111enu <em>Ionic 2<\/em> klasu za navigaciju izme\u0111u stranica. Ipak, ovdje nam jo\u0161 treba i <span class=\"lang:js decode:true  crayon-inline\">NavParams<\/span> za dohva\u0107anje proslje\u0111enih parametara.<\/p>\n<pre class=\"lang:js mark:2,18,22,26 decode:true \" title=\"korisnik.ts\" >import { Component } from '@angular\/core';\r\nimport { NavController, NavParams } from 'ionic-angular';\r\nimport { KorisniciService } from '..\/..\/providers\/korisnici';\r\n\r\n@Component({\r\n  selector: 'page-korisnik',\r\n  providers: [KorisniciService],\r\n  templateUrl: 'korisnik.html'\r\n})\r\nexport class KorisnikPage {\r\n\r\n  popiskorisnika:any;\r\n  id:number;\r\n\r\n  constructor(public navCtrl: NavController, public _korisnici: KorisniciService, public _navParams: NavParams) {\r\n\r\n    \/\/ Objekt od \"test\" parametra\r\n    this.test = _navParams.data;\r\n    console.log(this.test);\r\n\r\n    \/\/ \"ID\" parametar\r\n    this._navParams.get('id');\r\n    console.log(this._navParams.get('id'));\r\n\r\n    \/\/ \"ID\" parametar\r\n    this.id = _navParams.get('id');\r\n    console.log(this.id); \r\n\r\n     this._korisnici.dohvatiKorisnika(this.id).subscribe(res =&gt; {\r\n       this.korisnik = res.jedan_korisnik;\r\n  }); \r\n\r\n  }\r\n\r\n  ionViewDidLoad() {\r\n    console.log('KorisnikPage');\r\n  }\r\n\r\n}<\/pre>\n<p>U slu\u010daju kada smo kao parametar proslijedili \u010ditav <span class=\"lang:js decode:true  crayon-inline\">test<\/span> objekt podatke \u0107emo prikazati na sljede\u0107i na\u010din. Zna\u010di, prilikom u\u010ditavanja stranice ne trebamo pozivati nikakav drugi API jer smo si proslijedili potrebne podatke o korisniku koje mo\u017eemo prikazati na ekranu.<\/p>\n<pre class=\"lang:xhtml decode:true \" title=\"korisnik.html\" >&lt;ion-card&gt;\r\n  &lt;ion-card-header&gt;\r\n  &lt;p&gt; {{test.username}}&lt;\/p&gt;\r\n  &lt;\/ion-card-header&gt;\r\n  &lt;ion-card-content&gt;\r\n    &lt;ul&gt;\r\n      &lt;li&gt;{{test.email}}&lt;\/li&gt;\r\n    &lt;\/ul&gt;\r\n  &lt;\/ion-card-content&gt;\r\n&lt;\/ion-card&gt;<\/pre>\n<p>Ali ako smo proslijedili samo parametar <span class=\"lang:js decode:true  crayon-inline\">id<\/span> pomo\u0107u kojega aktiviramo API za <a href=\"https:\/\/www.tomislavstankovic.com\/blog\/ionic2-prikaz-json-podatak-api\/\" target=\"_blank\">prikaz detalja<\/a> jednog korisnika tada podatke prikazujemo na sljede\u0107i na\u010din<\/p>\n<pre class=\"lang:xhtml decode:true \" title=\"korisnik.html\" >&lt;ion-card&gt;\r\n  &lt;ion-card-header&gt;\r\n  &lt;p&gt; {{korisnik.username}}&lt;\/p&gt;\r\n  &lt;\/ion-card-header&gt;\r\n  &lt;ion-card-content&gt;\r\n    &lt;ul&gt;\r\n      &lt;li&gt;{{korisnik.email}}&lt;\/li&gt;\r\n    &lt;\/ul&gt;\r\n  &lt;\/ion-card-content&gt;\r\n&lt;\/ion-card&gt;<\/pre>\n<h2>Zaklju\u010dak<\/h2>\n<p>I to je to. Ovo su osnove koje se ti\u010du proslje\u0111ivanja parametara izme\u0111u stranica u <em>Ionic 2<\/em> aplikaciji. Sve dalje ovisi o specifi\u010dnim potrebama svake <em>Ionic 2<\/em> aplikacije.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kada se radi mobilna aplikacija pitanje je vremena kada \u0107e ona postati kompleksnija tj. imati vi\u0161e stranica izme\u0111u kojih \u0107e trebati postojati interaktivnost, a to podrazumijeva proslje\u0111ivanje nekih parametara s jedne stranice na drugu. Pod pretpostavkom da ve\u0107 imate pokrenut Ionic 2 projekt mo\u017eemo krenuti dalje. Kreiranje stranica Za po\u010detak trebamo kreirati dvije stranice. Jedna &hellip; <a href=\"https:\/\/www.tomislavstankovic.com\/blog\/ionic2-prosljedivanje-parametara\/\" class=\"more-link\">Nastavi \u010ditati <span class=\"screen-reader-text\">Ionic 2 &#8211; proslje\u0111ivanje parametara izme\u0111u stranica<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":5055,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[564,351],"tags":[376,381,397],"class_list":["post-5054","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mobile","category-razvoj","tag-api","tag-ionic-2","tag-prosljedivanje-parametara"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ionic 2 - proslje\u0111ivanje parametara izme\u0111u stranica - Tomislav Stankovi\u0107<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tomislavstankovic.com\/blog\/ionic2-prosljedivanje-parametara\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ionic 2 - proslje\u0111ivanje parametara izme\u0111u stranica - Tomislav Stankovi\u0107\" \/>\n<meta property=\"og:description\" content=\"Kada se radi mobilna aplikacija pitanje je vremena kada \u0107e ona postati kompleksnija tj. imati vi\u0161e stranica izme\u0111u kojih \u0107e trebati postojati interaktivnost, a to podrazumijeva proslje\u0111ivanje nekih parametara s jedne stranice na drugu. Pod pretpostavkom da ve\u0107 imate pokrenut Ionic 2 projekt mo\u017eemo krenuti dalje. Kreiranje stranica Za po\u010detak trebamo kreirati dvije stranice. 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