I keep getting a nullpoint error from my preferenceactivity i have no
idea whats wrong. I debug and the saveInstancestate is coming in null
for some reason, but it may be something else.
public class SettingsFrontEnd extends PreferenceActivity {
public static final String NO_SELECTION = "0″";
public static final String PASSWORD_KEY = "PASSWORDKEY";
public static final String SELECTED_TARGET_KEY =
"SelectedTargetKey";
public final String QUICK_CONTACT_KEY = "QUICK_CONTACT_KEY";
private android.content.SharedPreferences.Editor editor;
private HelpiDB mDbHelper;
private EditTextPreference passwordPreference;
private SharedPreferences pref;
private CheckBoxPreference quickcontactPreference;
private ListPreference targets;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.settings_menu:
break;
case R.id.contact_menu:
if (targets.getValue().equals(NO_SELECTION)) {
Toast.makeText(this, "Choose a Main COntact",
Toast.LENGTH_LONG).show
();
} else {
Intent myIntent = new Intent(SettingsFrontEnd.this,
ContactFrontEnd.class);
startActivityForResult(myIntent, 0);
}
break;
case R.id.map_menu:
if (targets.getValue().equals(NO_SELECTION)) {
Toast.makeText(this, "Choose a Main COntact",
Toast.LENGTH_LONG).show
();
} else {
Intent myIntent = new Intent(SettingsFrontEnd.this,
ContactFrontEnd.class);
startActivityForResult(myIntent, 0);
}
break;
case R.id.insert_menu:
if (targets.getValue().equals(NO_SELECTION)) {
Toast.makeText(this, "Choose a Main COntact",
Toast.LENGTH_LONG).show
();
} else {
Intent myIntent = new Intent(SettingsFrontEnd.this,
InsertFrontEnd.class);
startActivityForResult(myIntent, 0);
}
break;
default:
// put your code here
}
return false;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setPreferenceScreen(createPreferenceHierarchy());
pref
.registerOnSharedPreferenceChangeListener(new
SharedPreferences.OnSharedPreferenceChangeListener() {
@Override
public void onSharedPreferenceChanged(SharedPreferences
sharedPreferences,
String key) {
if (key.equals(SELECTED_TARGET_KEY)) {
editor = pref.edit();
editor.putString(key, targets.getValue());
}
if (key.equals(PASSWORD_KEY)) {
editor = pref.edit();
editor.putString(key, passwordPreference.getText());
}
if (key.equals(QUICK_CONTACT_KEY)) {
editor = pref.edit();
editor.putBoolean(QUICK_CONTACT_KEY,
quickcontactPreference.isChecked());
}
}
});
}
private PreferenceScreen createPreferenceHierarchy() {
PreferenceScreen root = getPreferenceManager().createPreferenceScreen
(this);
PreferenceCategory dialogBasedPrefCat = new PreferenceCategory(this);
dialogBasedPrefCat.setTitle(R.string.title_preferences);
root.addPreference(dialogBasedPrefCat);
// builds list from DB
mDbHelper = new HelpiDB(this);
mDbHelper.open();
Cursor c = mDbHelper.getCheckedContacts();
startManagingCursor(c);
int count = c.getCount();
CharSequence[] entries = new CharSequence[count];
CharSequence[] entryValues = new CharSequence[count];
c.moveToFirst();
for (int i = 0; i < count; i++) {
entries[i] = c.getString(c.getColumnIndexOrThrow
(HelpiDB.KEY_NAME));
entryValues[i] = c.getString(c.getColumnIndexOrThrow
(HelpiDB.KEY_ID));
c.moveToNext();
}
targets = new ListPreference(this);
targets.setEntries(entries);
targets.setEntryValues(entryValues);
targets.setDefaultValue(NO_SELECTION);
targets.setDialogTitle("Main Contact");
targets.setKey(SELECTED_TARGET_KEY);
targets.setTitle("Main Contact");
targets.setSummary("First person contacted using HelpiCall");
dialogBasedPrefCat.addPreference(targets);
// add other preference screens
passwordPreference = new EditTextPreference(this);
passwordPreference.setTitle("Password");
passwordPreference.setSummary("Password need for others to find
you");
passwordPreference.setDialogTitle("Password");
passwordPreference.setKey(PASSWORD_KEY);
root.addPreference(passwordPreference);
quickcontactPreference = new CheckBoxPreference(this);
quickcontactPreference.setTitle("Quick Contact");
quickcontactPreference.setSummary("HelpiCall upon start up");
quickcontactPreference.setDefaultValue(false);
quickcontactPreference.setKey(QUICK_CONTACT_KEY);
root.addPreference(quickcontactPreference);
return root;
}
}
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
