Popupwindow with image

Question

我需要能夠在listview中點擊imgview，這應該會打開一個彈出窗口，顯示圖像的大小。我設法實現了clicklistener，但在創建彈出窗口時仍然失敗，即使僅使用textview測試。

在我mainActivity的OnCreate我運行

lstView.setAdapter(new CustomListViewAdapter(this, dataFromDBListe, 0, orientation)); 

在我CustomListVievAdapter，在那裏我有我的clicklistener（可顯示目前舉杯）我有以下getView()：

public View getView(int position, View convertView, ViewGroup parent) { 
    ViewHolder holder; 
    if (convertView == null) { 
     convertView = mInflater.inflate(R.layout.custom_row, null); 
     holder = new ViewHolder(); 
     holder.title = (TextView) convertView.findViewById(R.id.title); 
     holder.prev = (TextView) convertView.findViewById(R.id.prevNrDate); 
     holder.prevTitle = (TextView) convertView.findViewById (R.id.prevTitle); 
     holder.next = (TextView) convertView.findViewById(R.id.nextNrDate); 
     holder.nextTitle = (TextView) convertView.findViewById  (R.id.nextTitle); 
     holder.picture = (ImageView) convertView.findViewById (R.id.showPic); 
     holder.prevFast = (TextView) convertView.findViewById(R.id.prev); 
     holder.nextFast = (TextView) convertView.findViewById(R.id.next); 
     holder.linearLayout = (LinearLayout) convertView.findViewById (R.id.imgLay); 
     convertView.setTag(holder); 
    } else { 
     holder = (ViewHolder) convertView.getTag(); 
    } 
    testSort(holder); 
    final Show item = showList.get(position); 
    holder.title.setText(item.getTitle()); 
    holder.prev.setText(item.getPrevNr() + " - " + item.getPrevDate()); 
    holder.prevTitle.setText(item.getPrevTitle()); 
    holder.next.setText(item.getNextNr() + " - " + item.getNextDate()); 
    holder.nextTitle.setText(item.getNextTitle()); 

    if(pic) { 
     holder.linearLayout.setVisibility(8); 
    } if(compact) { 
     holder.linearLayout.setVisibility(8); 
     holder.prevTitle.setVisibility(8); 
     holder.nextTitle.setVisibility(8); 
    } else { 
//   new DownloadImageTask(holder.picture).execute(item.getShowId()); 
     String path; 
     if(ih.checkImg(item.getShowId())) { 
      path = PATH + item.getShowId() + ".jpg"; 
     } else { 
      path = "bla"; 
     } 
//   DrawableManager dm = new DrawableManager(); 
//   dm.fetchDrawableOnThread(path, holder.picture); 
     imageDownloader.download(path, holder.picture); 
//   ih.download(path, holder.picture); 
    } 

    holder.picture.setOnClickListener(new View.OnClickListener() { 
       public void onClick(View view) { 
        Toast.makeText(context, "IMG clicked", 
          Toast.LENGTH_LONG).show(); 
        //Show popup with full image of the clicked small img. 
       } 
      }); 

    return convertView; 
} 

我在這裏嘗試了popupwindow的大多數常用鏈接解決方案，但無法使其工作。

Answer 1

創建自定義對話框，並在其中通過圖像....

private void loadPhoto(ImageView imageView, int width, int height) { 

     ImageView tempImageView = imageView; 


     AlertDialog.Builder imageDialog = new AlertDialog.Builder(this); 
     LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE); 

     View layout = inflater.inflate(R.layout.custom_fullimage_dialog, 
       (ViewGroup) findViewById(R.id.layout_root)); 
     ImageView image = (ImageView) layout.findViewById(R.id.fullimage); 
     image.setImageDrawable(tempImageView.getDrawable()); 
     imageDialog.setView(layout); 
     imageDialog.setPositiveButton(resources.getString(R.string.ok_button), new DialogInterface.OnClickListener(){ 

      public void onClick(DialogInterface dialog, int which) { 
       dialog.dismiss(); 
      } 

     }); 


     imageDialog.create(); 
     imageDialog.show();  
    } 

custom_fullimage_dialog.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/layout_root" android:orientation="horizontal" 
    android:layout_width="fill_parent" android:layout_height="fill_parent" 
    android:padding="10dp"> 
    <ImageView android:id="@+id/fullimage" android:layout_width="fill_parent" 
     android:layout_height="fill_parent"> 
    </ImageView> 

    <TextView android:id="@+id/custom_fullimage_placename" 
     android:layout_width="wrap_content" android:layout_height="fill_parent" 
     android:textColor="#FFF"> 
    </TextView> 
</LinearLayout>