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POHow to add for loop values to an arraylist?
 

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  1. POHow to add for loop values to an arraylist?
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    <p>I have an activity where in the values are fetched via JSON. The <code>for</code> loop is run. I am receiving all the values present in the fetched object from JSON. However, I want to append all the values to an <code>ArrayList</code>, i.e. <code>image_urls</code>. Could any one please help me?</p> <pre><code>public class AndroidJSONParsingActivity extends ListActivity { private static String url = "http://www.ttt.com/album_pro/array_to_encode"; JSONArray folio = null; ArrayList&lt;String&gt; urlList = new ArrayList&lt;String&gt;(); public static ArrayList&lt;String&gt; image_urls = new ArrayList&lt;String&gt;(); @SuppressLint("NewApi") public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() .permitAll().build(); StrictMode.setThreadPolicy(policy); JSONParser jParser = new JSONParser(); try { JSONObject json = jParser.getJSONFromUrl(url); // Log.v("URL",json.toString()); JSONObject seo = json.getJSONObject("SEO"); // Log.v("seo",seo.toString()); JSONArray folio = seo.getJSONArray("Folio"); Log("ARRAY-FOLIO0" + folio); JSONArray image_urls1 = new JSONArray(); String s1 = seo.getString("Folio"); for (int i = 0; i &lt; folio.length(); i++) { String m = folio.getString(i); Log.v("M" + i, m); image_urls.add(folio.getString(i) + ","); Log("JSON-ARRAY--&gt;" + image_urls.add(folio.getString(i))); } } catch (Exception e) { e.printStackTrace(); } } private void Log(String string) { Log.v("SEO-TEST", string); } } </code></pre> <p>Following is the logcat response I am getting</p> <pre><code>03-05 13:58:25.948: V/M0(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_a_grade_motor_school.html_a_poftfolio_2013_01_11.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M1(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arcticterntt_folio_portfolio_abc_tarps.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M2(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_able_scale.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M3(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_accent_aluminum_windows.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M4(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_access_health.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M5(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_acmeda__zipscreen.html_a_poftfolio_2013_01_11.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M6(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_aditya_birla_minerals.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M7(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_advanced_corporate_badges.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M8(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_aerotech_fans.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true 03-05 13:58:25.948: V/M9(3241): http://www.tt.com/media/imagepath/portfolio_images/http_arctictern.tt_folio_portfolio_agriculture_victoria_services_.html_a_poftfolio_2013_01_10.png 03-05 13:58:25.948: V/SEO-TEST(3241): JSON-ARRAY--&gt;true </code></pre>
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    1. COUse StringBuilder and append every element, and then use toString() function to get full string.
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    2. COMove the JSON processing logic to AsyncTask. You can't have networking on UI thread that too in onCreate() method. Move the code to Async Task and call the Async task in onResume() method
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    3. COpost your json String with question . are u getting any error with current code?
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