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POScrolling to selected item in ListPreference
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  1. POScrolling to selected item in ListPreference
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    copied!<p>I have the following problem. I created a custom list preference for displaying a textview with an additional image. Nearly everything works fine except of the following problem:</p> <p>The original list preference scrolls to the position which is currently selected, but my custom list preference does not show this behaviour. If I replace the custom list preference with the android version (or in my case the holoeverywhere version), everything works fine. Therefore, I think that the bug must be in my current implementation of the custom list preference.</p> <pre><code>public class CustomListPreference extends ListPreference { private CustomListPreferenceAdapter customListPreferenceAdapter = null; private Context mContext; private LayoutInflater mInflater; private CharSequence[] entries; private CharSequence[] entryValues; private Map&lt;String, Boolean&gt; rButtonMapping = null; private SharedPreferences prefs; private SharedPreferences.Editor editor; public CustomListPreference(Context context, AttributeSet attrs) { super(context, attrs); mContext = context; mInflater = LayoutInflater.from(context); rButtonMapping = new HashMap&lt;String, Boolean&gt;(); prefs = PreferenceManager.getDefaultSharedPreferences(mContext); // init the button mapping with the default values for (int i = 0; i &lt; Data.getData().length; i++) { rButtonMapping.put(Data.getData()[i], false); } // Set the current selected value to true String currentSelectedValue = prefs.getString( SettingsActivity.CUST_PREF_KEY, "TEST1"); rButtonMapping.put(currentSelectedValue, true); editor = prefs.edit(); } @Override protected void onPrepareDialogBuilder(Builder builder) { entries = getEntries(); entryValues = getEntryValues(); if (entries == null || entryValues == null || entries.length != entryValues.length) { throw new IllegalStateException( "ListPreference requires an entries array and an entryValues array which are both the same length"); } customListPreferenceAdapter = new CustomListPreferenceAdapter(); builder.setAdapter(customListPreferenceAdapter, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { } }); } private class CustomListPreferenceAdapter extends BaseAdapter { public int getCount() { return entries.length; } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(final int position, View convertView, ViewGroup parent) { View row = convertView; if (row == null) { row = mInflater.inflate(R.layout.custom_list_preference_row, parent, false); } TextView text = (TextView) row .findViewById(R.id.settings_tv_test); text.setText(entries[position]); try { InputStream ims = mContext.getAssets().open( "pics/" + entryValues[position] + ".png"); BitmapDrawable d = new BitmapDrawable(mContext.getResources(), ims); d.setTargetDensity(mContext.getResources().getDisplayMetrics().densityDpi); text.setCompoundDrawablesWithIntrinsicBounds(d, null, null, null); } catch (IOException e) { text.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null); } RadioButton rButton = (RadioButton) row .findViewById(R.id.settings_rb); // If the current position is checked we also check the current // value rButton.setChecked(rButtonMapping.get(entryValues[position])); row.setClickable(true); row.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { for (String currentString : rButtonMapping.keySet()) { rButtonMapping.put(currentString, false); } // Set the current selected value to true rButtonMapping.put((String) entryValues[position], true); // Also send the selected value to the editor editor.putString(SettingsActivity.CUST_PREF_KEY, (String) entryValues[position]); editor.commit(); getDialog().dismiss(); } }); rButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { for (String currentString : rButtonMapping.keySet()) { rButtonMapping.put(currentString, false); } // Set the current selected value to true rButtonMapping.put((String) entryValues[position], true); // Also send the selected value to the editor editor.putString(SettingsActivity.CUST_PREF_KEY, (String) entryValues[position]); editor.commit(); getDialog().dismiss(); } }); return row; } } </code></pre> <p>}</p> <p>I also did research here on Stackoverflow and Google, but no one seems to have this problem. </p> <p>Does anyone see what the problem is?</p>
 

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