Android Studio - Complete Android Apps Tutorial - Parsing JSON & XML - Day 15 - 10.06

Parsing JSON & XML
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 Parse the XML input stream with XMLPullParser XmlPullParser xpp = Xml. newPullParser ; xpp.setInputnew InputStreamReaderis; boolean start = false; int eventType = xpp.getEventType;
whileeventType!= XmlPullParser. END_DOCUMENT switcheventType case XmlPullParser. START_TAG : ifxpp.getName.equalsIgnoreCase"item" start = true; else ifstart ifxpp.getName.equalsIgnoreCase"title" title = xpp.nextText; else ifxpp.getName.equalsIgnoreCase"link" link = xpp.nextText; else ifxpp.getName.equalsIgnoreCase"desc" description = xpp.nextText; else ifxpp.getName.equalsIgnoreCase"pubDate" pubDate = xpp.nextText; break;
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 Parse the XML input stream with XMLPullParser
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case XmlPullParser. END_TAG : ifxpp.getName.equalsIgnoreCase"item" News newsItem = new Newstitle, link, description, pubDate; news.addnewsItem; start = false; break; eventType = xpp.next;

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 Parsing JSON options  Via JSONObject & JSONArray  Standard Android API  In package org.json  Via JsonReader  Standard Android API since API Level 11  In package android.util.JsonReader  Via Google GSON library  http://code.google.com/p/google-gson/  In package com.google.gson
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 Parse the JSON input stream using JSONObject // parse a JSONObject JSONObject jObject = new JSONObjectresult; String title = json_data.getString"title" String link = json_data.getString"link" String description = json_data.getString"description" String pubDate = json_data.getString"pubDate" // Construct an Item object to store the data Item item = new Itemtitle, link, description, pubDate;
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 Parse the JSON input stream using JSONArray // parse a JSONArray JSONArray jArray = new JSONArrayresult; for int i = 0; i jArray.length; i++ // Each element of an JSONArray is a JSONObject JSONObject json_data = jArray.getJSONObjecti; String title = json_data.getString"title" String link = json_data.getString"link" String description = json_data.getString"description" String pubDate = json_data.getString"pubDate" // Construct an Item object to store the data Item item = new Itemtitle, link, description, pubDate; items.additem;
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 Parse a JSON Array using JsonReader InputStreamReader isr = new InputStreamReaderis; JsonReader jr = new JsonReaderisr; jr.beginArray; // start JSON Array handling whilejr.hasNext jr.beginObject; // parse each JSON Object in the JSON Array jr.endObject; jr.endArray; // end JSON Array handling jr.close;
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 Parse a JSON Object using JsonReader jr.beginObject; // start JSON Object handling whilejr.hasNext String name = jr.nextName; ifname.equals"level" String level = jr.nextString; else ifname.equals"number" String number = jr.nextString; else ifname.equals"nickname" String nickname = jr.nextString; else jr.skipValue; jr.endObject; // end JSON Object handling