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POHow to get image resource name?
 

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  1. POHow to get image resource name?
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    <p>In my <strong>MainActivity</strong>, I have a Fragment called <strong>listImagesFragment</strong> which uses GridView to layout my images in a grid. Within that Fragment, I have an ItemClickListerner, so when one of the images is clicked, it starts another activity and displays that image.</p> <p>What I would like to do is when an image is clicked, I would like it to open up a different version of the image clicked. For arguments sake, lets say the GridView shows faces without the eyes, and when you press one of them, it shows a version of it with eyes.</p> <p>The way I planned to do this was to somehow get the resource name of the image displayed in the gridview, and then concatenate it with a string. Pass this new name to my single image activity (guesser.java) which would load up the other image.<br> For example. GridView image resource might be called ic_noface1 and the resource of the other image would be ic_noface1_withface. </p> <p>How would I go about getting the resource name of an image I have pressed? My current code is below:</p> <hr> <p><strong>MainActivity.java</strong> <em>listImagesFragement extract</em></p> <pre><code>public class listImagesFragment extends Fragment { @Override public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.gridview,container,false); GridView gridView = (GridView) view.findViewById(R.id.gridview); gridView.setAdapter(new RestaurantImageAdapter(view.getContext())); gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View v, int position, long id) { Intent i = new Intent(getActivity(), Guesser.class ); i.putExtra("id", position); startActivity(i); } }); return view; } } </code></pre> <p><strong>Guesser.java</strong> </p> <pre><code>public class Guesser extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Get the view from singleitemview.xml setContentView(R.layout.guesser); // Get position from intent passed from MainActivity.java Intent i = getIntent(); int position = i.getExtras().getInt("id"); // Open the Image adapter RestaurantImageAdapter imageAdapter = new RestaurantImageAdapter(this); // Locate the ImageView in single_item_view.xml ImageView imageView = (ImageView) findViewById(R.id.imageView); // Get image and position from ImageAdapter.java and set into ImageView imageView.setImageResource(imageAdapter.mThumbIds[position]); } } </code></pre> <p><strong>RestaurantImageAdapter.java</strong> <em>Generates the gridview</em></p> <pre><code>public class RestaurantImageAdapter extends BaseAdapter { private Context mContext; public RestaurantImageAdapter(Context c) { mContext = c; } public int getCount() { return mThumbIds.length; } public Object 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); } else { imageView = (ImageView) convertView; } imageView.setImageResource(mThumbIds[position]); return imageView; } // references to our images public Integer[] mThumbIds = { R.drawable.r_tgi_blank, R.drawable.r_krispykreme_blank, R.drawable.r_greggs_blank, R.drawable.r_nandos_blank, R.drawable.r_dennys_blank, R.drawable.r_ihop_blank, R.drawable.r_fb_blank, R.drawable.r_wagamama_blank, R.drawable.r_subway_blank, R.drawable.r_bk_blank, R.drawable.r_zizzi_blank, R.drawable.r_taco_blank, R.drawable.r_starbucks_blank, R.drawable.r_bennigans_blank, R.drawable.r_applebees_blank }; } </code></pre>
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