android - GridViewの画像を変更する方法

Question

いくつかの画像を含む GridView を 1 つ持っています。クリックして画像を変更したい。ダイアログボックスから画像を選択するオプションを提供しています。しかし問題は、グリッドビューが最新の画像を更新していないことです。同様の質問を見つけました Gridviewランタイムで画像を変更するにはどうすればよいですか? . しかし、私の場合、解決策でさえうまくいきません。私のコードは以下です。

private GridView gridView1,gridView2,gridView3;
private View sepView1,sepView2;
private static WallpaperInfo wall = new WallpaperInfo();

public Integer[] butterflyIds = {
        R.drawable.create_cardz, 
        R.drawable.done_icon,
        R.drawable.email, 
        R.drawable.facebook,
        R.drawable.error_icon, 
        R.drawable.mms_lock,
        R.drawable.ic_launcher,
        R.drawable.icon_plus,
        R.drawable.like, 

};


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    Log.i("BillingService", "Starting");
    setContentView(R.layout.wallpapersetting);

    gridView1 = (GridView) findViewById(R.id.gridview1);
    gridView2 = (GridView) findViewById(R.id.gridview2);
    gridView3 = (GridView) findViewById(R.id.gridview3);

    sepView1 = (View)findViewById(R.id.seperator1);
    sepView2 = (View)findViewById(R.id.seperator2);

    gridView1.setAdapter(new ImageAdapter(this, butterflyIds));
    final ImageAdapter im = new ImageAdapter(this,butterflyIds);
    //gridView2.setAdapter(new ImageAdapter(this, butterflyIds));
    //gridView3.setAdapter(new ImageAdapter(this,background));


    gridView1.setOnItemClickListener(new OnItemClickListener() 
    {

        @Override
        public void onItemClick(AdapterView<?> parentView, View vi, int position,long id) 
        {
            createDialog(parentView,vi,position,butterflyIds,im,gridView1);

        }

    });


}

 private  void createDialog(final AdapterView<?>  parentView,View v,int pos,Integer[]     ID, final ImageAdapter im, final GridView gv)
{
    final int parentPos= pos;
    final Dialog dialog = new Dialog(this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.dialog_layout);
    GridView dialogGridView =  (GridView) dialog.findViewById(R.id.dialog_grid);
    dialogGridView.setAdapter(new DialogImageAdapter(this,ID));
    dialogGridView.setOnItemClickListener(new OnItemClickListener() 
    {

        @Override
        public void onItemClick(AdapterView<?> dialogParentView, View vi, int position,long id) 
        {
            //parentView.addView(vi, position);
            setImage(dialogParentView.getId(),parentPos,im);
            dialog.dismiss();
            im.notifyDataSetChanged();
            gv.setAdapter(im);
            gv.invalidateViews();

        }

    });
    WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
    lp.copyFrom(getWindow().getAttributes());
    lp.width = WindowManager.LayoutParams.FILL_PARENT;
    getWindow().setAttributes(lp);
    dialog.show();  
}

protected void setImage(int viewId,int parentPos, ImageAdapter im) 
{
    im.setFlowerIds(parentPos, viewId);
}

私のimageAdapterクラスはこれです

 package com.tdsoc.lw.utils;

 import android.content.Context;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.BaseAdapter;
 import android.widget.GridView;
 import android.widget.ImageView;

 public class ImageAdapter extends BaseAdapter {
private Context mContext;
private Integer[] mThumbIds;
private ImageView imageView;
// Keep all Images in array

// Constructor
public ImageAdapter(Context c)
{
    mContext = c;
}

public ImageAdapter(Context c, Integer[] mTid)
{
    mContext = c;
    mThumbIds = mTid;
}
@Override
public int getCount() 
{
    return mThumbIds.length;
}

@Override
public Object getItem(int position)
{
    return position;
}

@Override
public long getItemId(int position) 
{
    return mThumbIds[position];
}

@Override
public View getView(int position, View convertView, ViewGroup parent)
{
     if( convertView == null)
     {
        imageView = new ImageView(mContext);
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        imageView.setLayoutParams(new GridView.LayoutParams(70, 70));
     }
     else
     {
         imageView = (ImageView)convertView;
     }
     imageView.setImageResource(mThumbIds[position]);
     //notifyDataSetChanged();
     return imageView;
}
public Integer[] getFlowerIds()
{
    return mThumbIds;
}
public  void setFlowerIds(int pos,int ID )
{
    mThumbIds[pos]= ID;
}

 }