title: Display image based on Gridview selection from previous activity
body: <p>I currently have a working gridview displaying some thumbnails. Currently, when you select an image it will save a larger resolution of the image as a wallpaper.</p>
  
  <p>What I want to do is open a new intent and then display the full resolution image based on the GridView position clicked. I'm not sure how I find out what position was clicked from the new activity/intent.</p>
  
  <p>Heres what I have in my main activity</p>
  
  <pre><code>public class test extends Activity {
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
  
      GridView gridview = (GridView) findViewById(R.id.gridview);
      gridview.setAdapter(new ImageAdapter(getApplicationContext()));
  
      gridview.setOnItemClickListener(new OnItemClickListener() {
          public void onItemClick(AdapterView&lt;?&gt; parent, View v, int position, long id) {
              Toast.makeText(test.this, "" + position + "" + id, Toast.LENGTH_SHORT).show();
  
              //Make a Bitmap from the Resource
              ImageAdapter i = (ImageAdapter)parent.getAdapter();
              Bitmap mBitmap = BitmapFactory.decodeResource(getResources(),(int)i.getItemId(position));
  
              //Get the WallpaperManager
              WallpaperManager myWallpaperManager = WallpaperManager.getInstance(getApplicationContext());
  
              try {
                  //Set the clicked bitmap
                  myWallpaperManager.setBitmap(mBitmap);
                  Toast.makeText(test.this, "Wallpaper set", Toast.LENGTH_SHORT).show();
              } catch (IOException e) {
                  Toast.makeText(test.this, "Error setting wallpaper", Toast.LENGTH_SHORT).show();
              }
  
          }
      });
  
  }
  </code></pre>
  
  <p>}</p>
  
  <p>ImageAdapter</p>
  
  <pre><code>public class ImageAdapter extends BaseAdapter {
  
  private Context mContext;
  
  public ImageAdapter(Context c) {
      mContext = c;
  }
  
  public int getCount() {
      return mThumbIds.length;
  }
  
  public Object getItem(int position) {
      return null;
  }
  
  public long getItemId(int position) {
      return mFullSizeIds[position];
  }
  
  // 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 = {
          R.drawable.sample_1, R.drawable.sample_2,
          R.drawable.sample_3, R.drawable.sample_4,
          R.drawable.sample_5, R.drawable.sample_6,
          R.drawable.sample_7 
  };
  
  
  private Integer[] mFullSizeIds = {
          R.drawable.wallpaper1,
          R.drawable.wallpaper2,
          R.drawable.wallpaper3,
          R.drawable.wallpaper4,
          R.drawable.wallpaper5,
          R.drawable.wallpaper6,
          R.drawable.wallpaper7
          };
  </code></pre>
  
  <p>}</p>
  
  <p>And blank FullView template</p>
  
  <pre><code>public class FullView extends Activity {
  
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.fullview);
  
  ImageView imageview;
      imageview.setImageResource(mFullSizeIds[**]) &lt;--- How to set ** to what GridView position was selected?
  
  
  }
  </code></pre>
  
  <p>}</p>
  
  <p>I haven't really written anything in the FullView activity yet due to being unaware of how to pass the position that was clicked from the GridView in this new activity. </p>
  
  <p>(I haven't written the intent code in my main activity either so you can see how it currently works)</p>
  
  <p>How do I pass the gridview position that was selected into the new activity?</p>