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    <p>Code seems to be right. Tell you that the following code works, just tested it:</p> <pre><code>package com.lid.ps.screens.edit_activity; import android.app.AlertDialog; import android.app.DatePickerDialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.preference.*; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.*; import com.lid.ps.bean.AbstractData; import com.lid.ps.bean.Action; import com.lid.ps.bean.ActionFactory; import com.lid.ps.bean.CommonAlertDialog; import com.lid.ps.bean.utils.DateTools; import com.lid.ps.model.Activity; import com.lid.ps.model.ActivityImpl; import com.lid.ps.screens.R; import java.util.Calendar; /** * User: Vladimir Ivanov * Date: 04.07.2010 * Time: 9:58:17 */ public class EditActivityScreen extends PreferenceActivity implements DatePickerDialog.OnDateSetListener, AbstractData&lt;Activity&gt; { private static final int MENU_DELETE_ACTIVITY = 0; private boolean create = true; public boolean isCreate() { return create; } private Activity dataContainer; private EditTextPreference activityNamePref; private EditTextPreference activityDescPref; private Preference startDatePref; private CheckBoxPreference hiddenPref; private int year; private int monthOfYear; private int dayOfMonth; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.activity_prefs); //this.setContentView(R.layout.edit_screen); activityNamePref = (EditTextPreference) findPreference("name"); activityDescPref = (EditTextPreference) findPreference("desc"); // We have to do this to get the save/cancel buttons to highlight on // their own. getListView().setItemsCanFocus(true); // Grab the content view so we can modify it. FrameLayout content = (FrameLayout) getWindow().getDecorView() .findViewById(android.R.id.content); // Get the main ListView and remove it from the content view. ListView lv = getListView(); content.removeView(lv); // Create the new LinearLayout that will become the content view and // make it vertical. LinearLayout ll = new LinearLayout(this); ll.setOrientation(LinearLayout.VERTICAL); // Have the ListView expand to fill the screen minus the save/cancel // buttons. LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); lp.weight = 1; ll.addView(lv, lp); // Inflate the buttons onto the LinearLayout. View v = LayoutInflater.from(this).inflate( R.layout.edit_screen, ll); startDatePref = findPreference("time"); hiddenPref = (CheckBoxPreference) findPreference("hidden"); // Initialize buttons Button cancelButton = (Button) v.findViewById(R.id.cancel_activity); Button saveButton = (Button) v.findViewById(R.id.save_activity); cancelButton.setOnClickListener(new CancelOnClickListener()); saveButton.setOnClickListener(new SaveOnClickListener()); setContentView(ll); // if edit mode... if (getIntent() != null &amp;&amp; getIntent().getExtras() != null) { // some stuff } @Override public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { if (preference == startDatePref) { new DatePickerDialog(this, this, year, monthOfYear, dayOfMonth).show(); } return super.onPreferenceTreeClick(preferenceScreen, preference); } private void popAlarmSetToast(Context context) { String toastText; //... final Toast toast = Toast.makeText(context, toastText, Toast.LENGTH_LONG); toast.show(); } /** * updates the preference summary. * * @param datePicker date picker * @param i year * @param i1 month * @param i2 day */ @Override public void onDateSet(DatePicker datePicker, int i, int i1, int i2) { year = i; monthOfYear = i1; dayOfMonth = i2; updateDate(); } private void updateDate() { startDatePref.setSummary( new StringBuilder() // Month is 0 based so add 1 .append(year).append("-") .append(monthOfYear + 1).append("-") .append(dayOfMonth).append(" ")); } private class CancelOnClickListener implements View.OnClickListener { public void onClick(View view) { // go back to the previous page final Action action = ActionFactory.createAction("back_edit_activity"); if (action != null) { action.doAction(EditActivityScreen.this); } } } private class SaveOnClickListener implements View.OnClickListener { public void onClick(View view) { // validation if (activityNamePref.getSummary() == null || activityNamePref.getSummary().length() == 0) { AlertDialog dialog = new AlertDialog.Builder(EditActivityScreen.this).create(); dialog.setTitle(R.string.validation_failed); dialog.setMessage(EditActivityScreen.this.getResources().getString(R.string.activity_create_fail)); dialog.setButton(AlertDialog.BUTTON_POSITIVE, "OK", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { } }); dialog.show(); } else { final Action action = ActionFactory.createAction("save_edit_activity"); if (action != null) { action.doAction(EditActivityScreen.this); } popAlarmSetToast(EditActivityScreen.this); } } } </code></pre> <p>}</p> <p>What about your check for sdk build? Does the code really go under the condition?</p> <p>And please, check the name of your preference. May be you haven't got it with <code>findPreference</code> method.</p>
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    1. POHow to remove Android preferences from the screen
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    1. USVladimir Ivanov
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    1. COThanks for your quick response. Yes, before posting I actually had the code printing the result of the removal (which returns a boolean) and it's giving me a false. I removed the if-statement just to eliminate any variables and I also double checked and tried different preferences with the same result. Any chance I could see your entire class that you tested it with? I have no idea why it's not working for me.
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    2. COEdited the answer.
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    3. COThanks dude, helped tons. You had no way of knowing what exactly was going wrong without seeing my XML first. Thanks again. I would promote your answer if I was above 15.
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