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POError while accessing the array
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  1. POError while accessing the array
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    copied!<p>Noob android developer trying to create a gallery with thumbnails saved on my server:</p> <p>I am trying to use my ArrayList in my ImageAdapter so that I can reference my array values when creating my thumbnail list loop. My eclipse package is available for download <a href="http://www.2020mediaonline.com/Tattoo%20Flash%20App.zip" rel="nofollow">here</a> since I may not explain this correctly. When I do trying and reference my "thumb" values in my array I am getting an undefined error along with a syntax error when trying to create my "mThumbIds"</p> <p>I am not sure why I am having such a hard time understanding this. </p> <p>showThumb.java:</p> <pre><code>package com.flash_tattoo; import android.os.Bundle; import android.widget.AdapterView.OnItemClickListener; import android.widget.GridView; import java.util.ArrayList; import java.util.List; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.content.ActivityNotFoundException; import android.content.Intent; import android.view.View; import android.view.View.OnClickListener; import android.widget.*; public class showThumb extends Activity{ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.gridlayout); Bundle bundle = getIntent().getExtras(); String jsonData = bundle.getString("jsonData"); JSONArray jsonArray = null; try { jsonArray = new JSONArray(jsonData); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } ArrayList&lt;image_data&gt; myJSONArray = new ArrayList&lt;image_data&gt;(); for(int i=0;i&lt;jsonArray.length();i++) { JSONObject json_data = null; try { json_data = jsonArray.getJSONObject(i); } catch (JSONException e) { e.printStackTrace(); } try { image_data.id = json_data.getInt("id"); } catch (JSONException e) { e.printStackTrace(); } try { image_data.name = json_data.getString("name"); } catch (JSONException e) { e.printStackTrace(); } try { image_data.thumb = json_data.getString("thumb"); } catch (JSONException e) { e.printStackTrace(); } try { image_data.path = json_data.getString("path"); } catch (JSONException e) { e.printStackTrace(); } myJSONArray.add(new image_data()); } GridView gridview = (GridView) findViewById(R.id.gridview); gridview.setAdapter(new ImageAdapter(this,myJSONArray)); gridview.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View v, int position, long id) { Toast.makeText(showThumb.this, "" + position, Toast.LENGTH_SHORT).show(); } }); } } </code></pre> <p>ImageAdapter:</p> <pre><code>package com.flash_tattoo; import java.util.ArrayList; import org.json.JSONArray; import org.json.JSONObject; import android.content.Context; import android.database.DataSetObserver; import android.graphics.drawable.Drawable; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.ListAdapter; public class ImageAdapter extends ArrayAdapter&lt;image_data&gt; { //This code below was put in when I change from BaseAdapter to ArrayAdapter public ImageAdapter(Context context, int textViewResourceId) { super(context, textViewResourceId); // TODO Auto-generated constructor stub } private Context mContext; public int getCount() { return mThumbIds.length; } public image_data getItem(int position) { return null; } public long getItemId(int position) { return 0; } // create a new ImageView for each item referenced by the Adapter public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView; if (convertView == null) { // if it's not recycled, initialize some attributes imageView = new ImageView(mContext); imageView.setLayoutParams(new GridView.LayoutParams(85, 85)); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setPadding(8, 8, 8, 8); } else { imageView = (ImageView) convertView; } imageView.setImageResource(mThumbIds[position]); return imageView; } // references to our images private Integer[] mThumbIds = { for(int i=0;i&lt;myJSONArray.lenght();i++){ Object[] myJSONArray; setImageDrawable(Drawable.createFromPath(myJSONArray[i].thumb) }; }; } </code></pre>
 

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