单击Imageview并在ListView ListItem中回复textview并获取android中的位置

Question

1. 我想点击事件replyTextview和HeartImageview
2. 每次点击listview获取位置
3. 使用意图
从arrayadapter转到其他活动



4. mainactivity.java中的Demacre listview

 @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
            Toast.makeText(mContext, "Postion no." +position, Toast.LENGTH_LONG).show();


        }

这是数组适配器类

    public class ActorAdapter extends ArrayAdapter<Actors> implements OnClickListener {
        ArrayList<Actors> actorList;
        LayoutInflater vi;
        int Resource;
        ViewHolder holder;
        int count=0;

        public ActorAdapter(Context context, int resource, ArrayList<Actors> objects) {
            super(context, resource, objects);
            vi = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            Resource = resource;
            actorList = objects;

        }
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            // convert view = design
            View v = convertView;
            if (v == null) {
                holder = new ViewHolder();
                v = vi.inflate(Resource, null);
                holder.ivheart = (ImageView) v.findViewById(R.id.iv_likeheart);
                holder.tvadd=(TextView)v.findViewById(R.id.tv_add);
                holder.tvreply=(TextView)v.findViewById(R.id.tv_reply);
                holder.tvreplyadd=(TextView)v.findViewById(R.id.tv_replyadd);
                holder.imageview = (ImageView) v.findViewById(R.id.iv_userpic);
                holder.tvName = (TextView) v.findViewById(R.id.tv_username);
                holder.tvDOB = (TextView) v.findViewById(R.id.tv_title);
                holder.tvCountry = (TextView) v.findViewById(R.id.tv_description);
                holder.ivheart.setOnClickListener(this);
                holder.tvreply.setOnClickListener(this);
                v.setTag(holder);
            } else {
                holder = (ViewHolder) v.getTag();
            }
            holder.imageview.setImageResource(R.drawable.ic_launcher);
            new DownloadImageTask(holder.imageview).execute(actorList.get(position).getImage());
            holder.tvName.setText(actorList.get(position).getName());
            holder.tvDOB.setText("B'day: " + actorList.get(position).getDob());
            holder.tvCountry.setText(actorList.get(position).getCountry());
            return v;

        }

        static class ViewHolder {
            public ImageView imageview;
            public TextView tvName;
            public TextView tvDOB;
            public TextView tvCountry;
            public ImageView ivheart;
            public TextView tvadd;
            public TextView tvreply;
            public TextView tvreplyadd;



        }



    private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
        ImageView bmImage;

        public DownloadImageTask(ImageView bmImage) {
            this.bmImage = bmImage;
        }

        protected Bitmap doInBackground(String... urls) {
            String urldisplay = urls[0];
            Bitmap mIcon11 = null;
            try {
                InputStream in = new java.net.URL(urldisplay).openStream();
                mIcon11 = BitmapFactory.decodeStream(in);
            } catch (Exception e) {
                Log.e("Error", e.getMessage());
                e.printStackTrace();
            }
            return mIcon11;
        }

        protected void onPostExecute(Bitmap result) {
            bmImage.setImageBitmap(result);
        }

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.iv_likeheart:

            Toast.makeText(getContext(), "Hello", Toast.LENGTH_LONG).show();
            break;
         case R.id.tv_reply:

            //not working settext here
            //holder.tvadd.setText(count++);
            // Toast.makeText(getContext(), "Hello" +count++, Toast.LENGTH_LONG).show();
             //Intent i=new Intent(ActorAdapter.this, ReplyActivity.class);

            break;

        default:
            break;
        }

    }
}

Answer 1

试试这个： - 而是使用列表View的onItemClick使用convert-view on-click in adapter。

Get-Migrations

希望这会对你有所帮助。

Answer 2

Jawed，您正在实现OnClickListener，但您应该使用OnItemClickListener。

请参阅下面的示例代码：

final ListView list = (ListView) findViewById(R.id.list);

    ArrayList<String> arrayList = new ArrayList<String>();
    String[] strings = new String[] {"A", "B", "C", "D", "E"};
    for (int i=0; i<strings.length; i++) {
        arrayList.add(i, strings[i]);
    }

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arrayList);
    list.setAdapter(adapter);
    list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
            Intent intent = new Intent(MainActivity.this, DetailActivity.class);
            Object item = list.getItemAtPosition(i);
            intent.putExtra("title", item.toString());
            startActivity(intent);
        }
    });

此代码正常运作。