TextView en las filas listview que muestran valores repetidos en desplazamiento en Android?

Tengo la solución para el problema. He introducido un dialogList() en el que estoy trabajando con un ArrayList. A continuación he mencionado el código de mi clase de adaptador.

 public class AppListAdapter extends BaseAdapter { private LayoutInflater mInflater; private List<App> mApps = Constants.list; private Context _activity; ArrayList<String> months=null; ArrayAdapter<String> dataAdapter =null; int spinerposition; Context contextfordatabase=null; int temp=0; private int screenWidth; /** * Constructor. * * @param context the application context which is needed for the layout inflater * @param screenWidth */ public AppListAdapter(Context context, int screenWidth) { contextfordatabase=context; // Cache the LayoutInflate to avoid asking for a new one each time. mInflater = LayoutInflater.from(context); this._activity=context; this.screenWidth = screenWidth; months = new ArrayList<String>(); months.add("No Item Selected"); months.add("None"); months.add("Entertainment"); months.add("Games"); months.add("News/Books"); months.add("Social Networking"); months.add("Utilities"); months.add("Texting"); months.add("Web Browsers"); } public int getCount() { return mApps.size(); } public Object getItem(int position) { return mApps.get(position); } public long getItemId(int position) { return position; } public class AppViewHolder { private TextView mTitle = null; private TextView apptitleTxt = null; private TextView offTxt = null; private Spinner spiner=null; public TextView offtext; } public View getView(final int position, View convertView, ViewGroup parent) { final AppViewHolder holder; if(convertView == null) { convertView = mInflater.inflate(R.layout.row, null); // creates a ViewHolder and stores a reference to the children view we want to bind data to holder = new AppViewHolder(); holder.spiner=(Spinner)convertView.findViewById(R.id.spinner); holder.offtext=(TextView)convertView.findViewById(R.id.off_txt); holder.apptitleTxt = (TextView) convertView.findViewById(R.id.apptitle_txt); Typeface typeface = Typeface.createFromAsset(_activity.getAssets(),"CHICM___.TTF"); holder.apptitleTxt.setTypeface(typeface); holder.offtext.setTypeface(typeface); if(screenWidth>480){ holder.offtext.setTextSize(30); holder.apptitleTxt.setTextSize(30); } convertView.setTag(holder); } else { holder = (AppViewHolder) convertView.getTag(); } holder.offtext.setOnClickListener(new OnClickListener() { public void onClick(View v) { dialogList(holder.offtext, position); } }); holder.apptitleTxt.setText(mApps.get(position).getTitle()); holder.offtext.setText(mApps.get(position).getVersionName()); return convertView; } /** * Sets the list of apps to be displayed. * * @param list the list of apps to be displayed */ public void setListItems(List<App> list) { mApps = list; } public void dialogList(final TextView textView, final int clickedPosition){ Builder builder = new AlertDialog.Builder(_activity); builder.setTitle("Select Category"); builder.setItems(R.array.category_list, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { textView.setText(months.get(which+1)); App app = new App(); app.setTitle(mApps.get(clickedPosition).getTitle()); app.setPackageName(mApps.get(clickedPosition).getPackageName()); app.setVersionName(months.get(which+1)); app.setVersionCode(mApps.get(clickedPosition).getVersionCode()); mApps.set(clickedPosition, app); System.out.println(clickedPosition+" : "+months.get(which+1)); update_database(mApps.get(clickedPosition).getPackageName(),months.get(which+1)); AppListAdapter.this.notifyDataSetChanged(); } }); builder.create(); builder.show(); } public void update_database(String packageName, String string) { CallBackDatabase callback = new CallBackDatabase(contextfordatabase); callback.open(); Cursor cursor =callback.getAll(packageName); int y=cursor.getCount(); int j=0; if(y!=0) { callback.UpdateCategory(packageName, string); } else { callback.InsertAppInfo(null, packageName, "0", "0", "0", "null", string); } cursor.deactivate(); cursor.close(); callback.close(); } } 

Esto se debe a ListView está reutilizando todas las Views anteriores, que se desplazan (no visible).

Por favor revise este tema.

Cambio

  if(convertView == null) { convertView = mInflater.inflate(R.layout.row, null); // creates a ViewHolder and stores a reference to the children view we want to bind data to holder = new AppViewHolder(); holder.spiner=(Spinner)convertView.findViewById(R.id.spinner); holder.offtext=(TextView)convertView.findViewById(R.id.off_txt); holder.offTxt = (TextView) convertView.findViewById(R.id.off_txt); holder.apptitleTxt = (TextView) convertView.findViewById(R.id.apptitle_txt); Typeface typeface = Typeface.createFromAsset(_activity.getAssets(),"CHICM___.TTF"); holder.apptitleTxt.setTypeface(typeface); holder.offTxt.setTypeface(typeface); if(screenWidth>480){ holder.offTxt.setTextSize(30); holder.apptitleTxt.setTextSize(30); } convertView.setTag(holder); } else { holder = (AppViewHolder) convertView.getTag(); } 

A

 convertView = mInflater.inflate(R.layout.row, null); // creates a ViewHolder and stores a reference to the children view we want to bind data to holder = new AppViewHolder(); holder.spiner=(Spinner)convertView.findViewById(R.id.spinner); holder.offtext=(TextView)convertView.findViewById(R.id.off_txt); holder.offTxt = (TextView) convertView.findViewById(R.id.off_txt); holder.apptitleTxt = (TextView) convertView.findViewById(R.id.apptitle_txt); Typeface typeface = Typeface.createFromAsset(_activity.getAssets(),"CHICM___.TTF"); holder.apptitleTxt.setTypeface(typeface); holder.offTxt.setTypeface(typeface); if(screenWidth>480){ holder.offTxt.setTextSize(30); holder.apptitleTxt.setTextSize(30); } convertView.setTag(holder); 

Ahora puedes ver que todo funcionará correctamente. Esta no es la mejor manera de solucionar el problema !, Para tener que gestionar el estado de los elementos cuando se utiliza convertir la vista para reciclar la vista.

EDITAR

 public class AppListAdapter extends BaseAdapter { private LayoutInflater mInflater; private List<App> mApps = Constants.list; private Context _activity; ArrayList<String> months=null; ArrayAdapter<String> dataAdapter =null; int spinerposition; int viewposition; int temp=0; private int screenWidth; ArrayList<String> vals=null; /** * Constructor. * * @param context the application context which is needed for the layout inflater * @param screenWidth */ public AppListAdapter(Context context, int screenWidth) { // Cache the LayoutInflate to avoid asking for a new one each time. mInflater = LayoutInflater.from(context); this._activity=context; this.screenWidth = screenWidth; months = new ArrayList<String>(); months.add("No Item Selected"); months.add("None"); months.add("Entertainment"); months.add("Games"); months.add("News/Books"); months.add("Social Networking"); months.add("Utilities"); months.add("Texting"); months.add("Web Browsers"); vals = new ArrayList<String>(); // Creating adapter for spinner dataAdapter = new ArrayAdapter<String>(_activity, android.R.layout.simple_spinner_item, months); // Drop down layout style - list view with radio button dataAdapter.setDropDownViewResource(android.R.layout.select_dialog_singlechoice); } public int getCount() { return mApps.size(); } public Object getItem(int position) { return mApps.get(position); } public long getItemId(int position) { return position; } public View getView(final int position, View convertView, ViewGroup parent) { final AppViewHolder holder; viewposition=position; convertView = mInflater.inflate(R.layout.row, null); // creates a ViewHolder and stores a reference to the children view we want to bind data to holder = new AppViewHolder(); holder.spiner=(Spinner)convertView.findViewById(R.id.spinner); holder.offtext=(TextView)convertView.findViewById(R.id.off_txt); holder.offTxt = (TextView) convertView.findViewById(R.id.off_txt); holder.apptitleTxt = (TextView) convertView.findViewById(R.id.apptitle_txt); Typeface typeface = Typeface.createFromAsset(_activity.getAssets(),"CHICM___.TTF"); holder.apptitleTxt.setTypeface(typeface); holder.offTxt.setTypeface(typeface); if(screenWidth>480){ holder.offTxt.setTextSize(30); holder.apptitleTxt.setTextSize(30); } convertView.setTag(holder); if(vals.get(position)!=null) { holder.offtext.setText(vals.get(position)); } holder.setTitle(mApps.get(position).getTitle(),mApps.get(position).getVersionName()); notifyDataSetChanged(); holder.offTxt.setOnClickListener(new OnClickListener() { public void onClick(View v) { holder.spiner.performClick(); } }); holder.spiner.setAdapter(dataAdapter); holder.spiner.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) { spinerposition=arg2; switch (spinerposition) { case 1: holder.offtext.setText("None"); break; case 2: holder.offtext.setText("Entertainment"); break; case 3: holder.offtext.setText("Games"); break; case 4: holder.offtext.setText("News/Books"); break; case 5: holder.offtext.setText("Social Networking"); break; case 6: holder.offtext.setText("Utilities"); break; case 7: holder.offtext.setText("Texting"); break; case 8: holder.offtext.setText("Web Browsers"); break; } vals.add(arg2,holder.offtext.getText()); } public void onNothingSelected(AdapterView<?> arg0) { } }); return convertView; } /** * Sets the list of apps to be displayed. * * @param list the list of apps to be displayed */ public void setListItems(List<App> list) { mApps = list; } /** * A view holder which is used to re/use views inside a list. */ public class AppViewHolder { private TextView mTitle = null; private TextView apptitleTxt = null; private TextView offTxt = null; private Spinner spiner=null; public TextView offtext; /** * Sets the text to be shown as the app's title * * @param title the text to be shown inside the list row */ public void setTitle(String title,String category) { apptitleTxt.setText(title); // offtext.setText(category); } } }