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POAndroid listview like button increment textview value same as facebook
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  1. POAndroid listview like button increment textview value same as facebook
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    copied!<p>I am using custom adapter for managing listview. I have one button and textview at each row. Now I want to add like-dislike functionality at the click of button. But I am facing issue when user scroll the list, it recycle the previous list item and when it comes again , it won't show the like increment in textview.</p> <p>How to solve this issue? any good example ?</p> <p>here is adapter code</p> <pre><code>public class ReviewAdapter extends BaseAdapter { protected static final String TAG = "ReviewAdapter"; private Activity activity; private ArrayList&lt;HashMap&lt;String, String&gt;&gt; data; private static LayoutInflater inflater = null; public ImageLoader imageLoader; private HashMap&lt;Integer, Integer&gt; mCountHash; public ReviewAdapter(Activity a, ArrayList&lt;HashMap&lt;String, String&gt;&gt; d) { activity = a; data = d; inflater = (LayoutInflater) activity .getSystemService(Context.LAYOUT_INFLATER_SERVICE); imageLoader = new ImageLoader(activity.getApplicationContext()); mCountHash = new HashMap&lt;Integer, Integer&gt;(); } @Override public int getCount() { return data.size(); } @Override public Object getItem(int position) { return position; } @Override public long getItemId(int position) { return position; } /** * * @author * */ public static class ViewReviewHolder { TextView reviewLikeCount; TextView reviewLikeText; Button likeBtn; } @Override public View getView(final int position, View convertView, ViewGroup parent) { View vi = convertView; final ViewReviewHolder viewHolder; if (vi == null) { vi = inflater.inflate(R.layout.review_row, null); viewHolder = new ViewReviewHolder(); viewHolder.reviewLikeCount = (TextView) vi .findViewById(R.id.review_total_likes_count); viewHolder.reviewLikeText = (TextView) vi .findViewById(R.id.review_total_likes_text); viewHolder.reviewCommentCount = (TextView) vi .findViewById(R.id.review_total_comment_count); viewHolder.likeBtn = (Button) vi.findViewById(R.id.review_like_btn); vi.setTag(viewHolder); } else { viewHolder = (ViewReviewHolder) vi.getTag(); viewHolder.reviewLikeCount.setText(""); viewHolder.reviewLikeText.setVisibility(View.GONE); } // Like // likeBtn.setTag(position); HashMap&lt;String, String&gt; reviewData = new HashMap&lt;String, String&gt;(); reviewData = data.get(position); // Setting all values in list view // Like Count if (reviewData.get(ListActivityReview.KEY_REVIEW_LIKE_COUNT).isEmpty()) { mCountHash.put(position, 0); } else { mCountHash.put(position, Integer.parseInt(reviewData .get(ListActivityReview.KEY_REVIEW_LIKE_COUNT))); viewHolder.reviewLikeCount.setText(reviewData .get(ListActivityReview.KEY_REVIEW_LIKE_COUNT)); viewHolder.reviewLikeCount.setVisibility(View.VISIBLE); viewHolder.reviewLikeText.setVisibility(View.VISIBLE); } /* * viewHolder.reviewLikeCount.setTag(position); * viewHolder.likeBtn.setTag(position); */ viewHolder.likeBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Log.d(TAG, "Pos :" + position); Log.d(TAG, "value " + mCountHash.get(position)); viewHolder.reviewLikeCount.setText(String.valueOf(mCountHash .get(position) + 1)); viewHolder.reviewLikeCount.setVisibility(View.VISIBLE); viewHolder.reviewLikeText.setVisibility(View.VISIBLE); } }); return vi; } </code></pre>
 

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