我的列表视图中有重复的操作问题我在互联网上进行了很多研究都失败了我的问题是当我单击第 1 项时它已展开并且当我向下滚动分页时附加更多项目并且我发现第 10 号项目也已展开，另一个例子，如果我切换项目编号 2，则编号 2 和编号 12 的项目将同时切换！
如何解决这个重复的问题？
这是列表视图类
public class Ringtones_Listview extends ArrayAdapter<Object> {
int resource;
String response;
Context context;
private LayoutInflater mInflater;
MediaPlayer mp = null;
ImageView play_clicked;
View vv = null;
String lang = Locale.getDefault().getDisplayLanguage();
ArrayList ob;
Integer clickedposition;
public Ringtones_Listview(Context context, int resource, ArrayList objects) {
super(context, resource,objects);
this.context = context;
this.ob = objects;
this.resource = resource;
mInflater = LayoutInflater.from(context);
}
public int getCount() {
return ob.size();
}
public JSONObject getItem(JSONObject position) {
return position;
}
public long getItemId(int position) {
return position;
}
static class ViewHolder {
ImageView play ;
ImageView download ;
TextView rtitle;
TextView size;
TextView downloads;
TextView personname;
TextView date;
RatingBar ratingsmall;
ImageView ratebutton;
long tonid;
TextView voters;
LinearLayout more;
}
@SuppressWarnings("deprecation")
public View getView(final int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
//Get the current location object
JSONObject r = (JSONObject) getItem(position);
//Inflate the view
if(convertView == null)
{
convertView = mInflater.inflate(R.layout.ringtone_bit, null);
holder = new ViewHolder();
convertView.setTag(holder);
holder.play = ( ImageView ) convertView.findViewById(R.id.play);
holder.download = ( ImageView ) convertView.findViewById(R.id.download);
holder.ratebutton = ( ImageView ) convertView.findViewById(R.id.ratebutton);
holder.rtitle = (TextView) convertView.findViewById(R.id.rtitle);
holder.size = (TextView) convertView.findViewById(R.id.size);
holder.downloads = (TextView) convertView.findViewById(R.id.downloads);
holder.voters = (TextView) convertView.findViewById(R.id.voters);
holder.personname = (TextView) convertView.findViewById(R.id.personname);
holder.date = (TextView) convertView.findViewById(R.id.date);
holder.ratingsmall = (RatingBar) convertView.findViewById(R.id.ratingsmall);
holder.more = ( LinearLayout ) convertView.findViewById(R.id.more);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
//hide More information
holder.more.setVisibility(View.GONE);
try {
Date date_g = new Date(r.getLong("timestamp") * 1000);
holder.date.setText(date_g.toLocaleString());
} catch (JSONException e2) {}
//set person name
try {
String client_name = ( r.getString("personname").equals( "null" ) == true ) ? "ghost" : r.getString("personname");
holder.personname.setText(client_name);
} catch (JSONException e2) {}
//set total votars and vote avarage
try {
float z = (float) r.getInt("rate");
holder.voters.setText(" ( "+ r.getLong("voters") +" ) / " + z);
} catch (JSONException e2) {}
//set rating bar
try {
float z = (float) r.getInt("rate");
holder.ratingsmall.setRating(z);
} catch (JSONException e2) {}
//set ringtone Name as defualt device language
try {
String name = ( lang.equals( "English" ) == true ) ? r.getString("en_name") : r.getString("ar_name");
holder.rtitle.setText(name);
} catch (JSONException e2) {}
//ringtone file size
try {
holder.size.setText(r.getString("size"));
} catch (JSONException e2) {}
//set downloads
try {
holder.downloads.setText(String.valueOf( r.getLong("downloads") ));
} catch (JSONException e2) {}
//set ringtone ID toneid
try {
holder.tonid = r.getLong("toneid");
holder.download.setTag(r.getLong("toneid"));
holder.ratebutton.setTag(r.getLong("toneid"));
holder.play.setId((int) r.getLong("toneid"));
convertView.setId((int) r.getLong("toneid"));
} catch (JSONException e1) {}
//set download stram url to play icon
try {
holder.play.setTag(r.getString("stream_url"));
} catch (JSONException e) {}
//add play listener test Ringtone before download it
holder.play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
clickedposition=position;
boolean playit = false;
v.setMinimumHeight(200);
//stop Media player dont play any thing
if ( mp != null )
{
mp.stop();
mp.release();
mp = null;
}
//check for last clicked item
if ( vv != null )
{
//set last played item to play icon
vv.setBackgroundResource(R.drawable.play);
//check if last played is not smae clicked item
if( v.getTag().toString().equals( vv.getTag().toString() ) == false )
{
playit = true;
}else
//its same item dont play stop here
{
vv = null;
}
}else
//nothing played yet play it
{
playit = true;
}
if ( playit )
{
vv = v;
v.setBackgroundResource(R.drawable.preparing_player);
AnimationDrawable frameAnimation = (AnimationDrawable) v.getBackground();
frameAnimation.start();
String stramUrl = String.valueOf(v.getTag());
try {
mp = new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp.setDataSource(stramUrl);
mp.prepareAsync();
} catch (Exception e) {}
//preparing straming
mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mps) {
v.setBackgroundResource(R.drawable.played);
mps.start();
}
});
mp.setOnCompletionListener( new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
v.setBackgroundResource(R.drawable.play);
}
});
}
}
});
return convertView;
}
}