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    <p>I think I get something... Instead of <code>Chk.setOnCheckedChangeListener()</code> I've changed to <code>Chk.setOnClickListener(new OnClickListener()</code></p> <pre><code>public class SPCMjereAdapter extends BaseAdapter { private Context context; public SPCMjereAdapter(Context c) { context = c; } public int getCount() { return MyArrList.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(final int position, View convertView, ViewGroup parent) { LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); if (convertView == null) { convertView = inflater.inflate(R.layout.activity_list_row, null); } TextView txtOpis = (TextView) convertView.findViewById(R.id.ColOpis); txtOpis.setText(MyArrList.get(position).get("OpisMjere") ); TextView txtRbMjere = (TextView) convertView.findViewById(R.id.ColCode); txtRbMjere.setText(MyArrList.get(position).get("RbMjere")); final CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); if(yourSelectedItems.contains((position))){ Chk.setChecked(true); }else{ Chk.setChecked(false); } Chk.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (Chk.isChecked()) { yourSelectedItems.add(position); } else { if(yourSelectedItems.contains(position)){ yourSelectedItems.remove((position)); } } } }); return convertView; } } </code></pre> <p>Now it works fine when scrolling up/down. But there is another problem and i'm little bit confused. When scrolling and randomly check/uncheck items program crashes and these errors I get:</p> <pre><code>FATAL EXCEPTION: main java.lang.IndexOutOfBoundsException: Invalid index 2, size is 2 at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) at java.util.ArrayList.remove(ArrayList.java:399) at com.dem.spckontrola.SPCKontrola$SPCMjereAdapter$1.onClick(SPCKontrola.java:830) at android.view.View.performClick(View.java:4084) at android.widget.CompoundButton.performClick(CompoundButton.java:100) at android.view.View$PerformClick.run(View.java:16966) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4745) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method </code></pre> <p>)</p> <p><strong>Ok. I solved this by adding</strong> <code>yourSelectedItems.remove(yourSelectedItems.indexOf(position));</code></p> <p>So now the correct solution is:</p> <pre><code> public class SPCMjereAdapter extends BaseAdapter { private Context context; public SPCMjereAdapter(Context c) { context = c; } public int getCount() { return MyArrList.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(final int position, View convertView, ViewGroup parent) { LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); if (convertView == null) { convertView = inflater.inflate(R.layout.activity_list_row, null); } TextView txtOpis = (TextView) convertView.findViewById(R.id.ColOpis); txtOpis.setText(MyArrList.get(position).get("OpisMjere") ); TextView txtRbMjere = (TextView) convertView.findViewById(R.id.ColCode); txtRbMjere.setText(MyArrList.get(position).get("RbMjere")); final CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); if(yourSelectedItems.contains((position))){ Chk.setChecked(true); }else{ Chk.setChecked(false); } Chk.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (Chk.isChecked()) { yourSelectedItems.add(position); } else { if(yourSelectedItems.contains(position)){ yourSelectedItems.remove(yourSelectedItems.indexOf(position)); } } } }); return convertView; } } </code></pre> <p>But now I'm facing with new problem: How to get list of all checked and unchecked items where some checkboxes (items) are not visible due to many items in listview which are visible only when scrolling down?</p>
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