I am using persistent stores to store data in a Blackberry application. I am trying to store phone number in persistent objects, but after storing, it gives null value.
here i am posting my code:
public static Vector push_data;
public static PersistentObject push_store = null;
public static final long KEY = 0x9df9f961bc333daL;
boolean isNumberVerified;
// PasswordEditField password;
static String verifiedPhoneNumber = "number";
public static String phoneNumber;
static String Number = "number";
public Third() {
super(Field.USE_ALL_HEIGHT | Field.FIELD_HCENTER);
System.out.println("******************** Into SplashScreen");
try {
bitmap = Bitmap.getBitmapResource("im.png");
BitmapField bmpField = new BitmapField(bitmap);
HorizontalFieldManager hfm = new HorizontalFieldManager();
hfm.add(bmpField);`
........
public void fieldChanged(Field field, int context) {
if (field == btnNext) {
final String msg = Util.getRandomNumber();
checkIsVerified(Number, msg);
}
}
private void checkIsVerified(final String Number, final String msg) {
Dialog.alert("Verifying " + Number);
if (verifiedPhoneNumber == Number) {
isNumberVerified = true;
Dialog.alert("isverified " + Number);
push_store = PersistentStore.getPersistentObject( KEY );
push_data = (Vector) push_store.getContents();
if( push_data == null ) {
push_data = new Vector();
push_data.addElement("number");
push_store.setContents( push_data );
push_store.commit();
Dialog.alert("isverified " + push_data);
UiApplication.getUiApplication().pushScreen(new spinner());
} else {
isNumberVerified = false;
UiApplication.getUiApplication().pushScreen(new Sms());
}
}
Try this -
public static String push_data="";
public static PersistentObject push_store;
public static final long KEY = 0x9df9f961bc33352L;
//For get contents
push_store = PersistentStore.getPersistentObject( KEY );
push_data = (String) push_store.getContents();
//For set contents
push_data=Number;
push_store.setContents( push_data );
push_store.commit();
Related
I'm new to android development and I have been struggling to parse more than one tag at a time and display it in a ListView.
I'm using SAX parser, here is my RssParseHandler code.
public class RssParseHandler extends DefaultHandler {
private List<RssItem> rssItems;
private RssItem currentMessage;
//private StringBuilder builder;
private boolean parseLink;
private boolean parseTitle;
private boolean parseDate;
private boolean parseDes;
public RssParseHandler() {
rssItems = new ArrayList();
}
public List<RssItem> getItems() {
return this.rssItems;
}
#Override
public void startElement(String uri, String localName, String name,
Attributes attributes) throws SAXException {
super.startElement(uri, localName, name, attributes);
if (localName.equalsIgnoreCase("item")) {
this.currentMessage = new RssItem();
} else if (localName.equalsIgnoreCase("title")) {
//currentMessage.setTitle(builder.toString());
parseTitle = true;
} else if (localName.equalsIgnoreCase("link")) {
//currentMessage.setLink(builder.toString());
parseLink = true;
} else if (localName.equalsIgnoreCase("description")) {
//currentMessage.setDescription(builder.toString());
parseDes = true;
} else if (localName.equalsIgnoreCase("pubDate")) {
//currentMessage.setDate(builder.toString());
parseDate = true;
}
//parsing enclosure tag
else if ("enclosure".equals(localName)) {
// Get tags attributes number
int attrsLength = attributes.getLength();
for (int i = 0; i < attrsLength; i++) {
String attrName = attributes.getQName(i); // attribute name
if ("url".equals(attrName)) // This tag has only one attribute but it is better to check it name is correct
currentMessage.getLink();
}
}
}
#Override
public void endElement(String uri, String localName, String name)
throws SAXException {
super.endElement(uri, localName, name);
if (this.currentMessage != null) {
if (localName.equalsIgnoreCase("item")) {
rssItems.add(currentMessage);
//currentMessage = null;
} else if (localName.equalsIgnoreCase("link")) {
//currentMessage.setLink(builder.toString());
//parseLink = false;
} else if (localName.equalsIgnoreCase("description")) {
//currentMessage.setDescription(builder.toString());
//parseDes = false;
} else if (localName.equalsIgnoreCase("pubDate")){
//currentMessage.setDate(builder.toString());
parseDate = false;
} else if (localName.equalsIgnoreCase("title")) {
//currentMessage.setTitle(builder.toString());
parseTitle = false;
}
//builder.setLength(0);
}
}
#Override
public void characters(char[] ch, int start, int length)
throws SAXException {
super.characters(ch, start, length);
//builder.append(ch, start, length);
if (parseTitle) {
if (currentMessage != null)
currentMessage.setTitle(new String(ch, start, length));
} else if (parseLink) {
if (currentMessage != null) {
currentMessage.setLink(new String(ch, start, length));
//parseLink = false;
}
} else if (parseDes) {
if (currentMessage != null)
currentMessage.setDescription(new String(ch, start, length));
//parseLink = false;
} else if (parseDate) {
if (currentMessage != null) {
currentMessage.setDate(new String(ch, start, length));
//currentMessage.setDate(new String(ch, start, length));
//parseDesc = false;
}
}
}
}
Here is the code for the Listview:
public class ReaderAppActivity extends Fragment {
private ReaderAppActivity local;
private ListView mList;
/**
* This method creates main application view
*/
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//super.onCreate(savedInstanceState);
// Set view
//setContentView(R.layout.fragment_rss);
local = this;
//int position = getArguments().getInt("position");
// String url = getArguments().getString("url");
// List of rivers
String[] menus = getResources().getStringArray(R.array.menus);
// Creating view corresponding to the fragment
View v = inflater.inflate(R.layout.fragment_rss, container, false);
// Set reference to this activity
//local = this;
GetRSSDataTask task = new GetRSSDataTask();
// Start download RSS task
task.execute("http://thechurchofwhatshappeningnow.libsyn.com/rss");
//task.execute(url);
// Debug the thread name
Log.d("ITCRssReader", Thread.currentThread().getName());
//mList = (ListView) findViewById(R.id.rssListMainView);
return v;
}
private class GetRSSDataTask extends AsyncTask<String, Void, List<RssItem> > {
#Override
protected List<RssItem> doInBackground(String... urls) {
// Debug the task thread name
Log.d("ITCRssReader", Thread.currentThread().getName());
try {
// Create RSS reader
RssReader rssReader = new RssReader(urls[0]);
// Parse RSS, get items
return rssReader.getItems();
} catch (Exception e) {
Log.e("ITCRssReader", e.getMessage());
}
return null;
}
#Override
protected void onPostExecute(List<RssItem> result) {
// Get a ListView from main view
ListView mList = (ListView) getView().findViewById(R.id.rssListMainView);
// Create a list adapter
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(getActivity(),R.layout.rss_text, result);
//ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(getActivity(),R.layout.fragment_rss, result);
// Set list adapter for the ListView
mList.setAdapter(adapter);
// Set list view item click listener
mList.setOnItemClickListener(new ListListener(result, getActivity()));
}
}
}
What am I doing wrong? I can't figure it out. I would like to parse, the link, description, pubDate, and pass them into the ListView. Ideally I would only display the title and episode number in the listview, and pass the other tags into String, so I can display them when I click an item in the listView.
I've created another class called SingleMenuItem to be called when I click an item in the ListView, it's just filler code right now, it does not display anything because the items aren't parsed.
Any help would be appreciated. Here is a RSS link to the feed:
public class SingleMenuItem extends Activity {
// XML node keys
static final String KEY_NAME = "name";
static final String KEY_DATE = "pubdate";
static final String KEY_DESC = "description";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.single_list_item);
// getting intent data
Intent in = getIntent();
// Get XML values from previous intent
String name = in.getStringExtra(KEY_NAME);
String date = in.getStringExtra(KEY_DATE);
String description = in.getStringExtra(KEY_DESC);
// Displaying all values on the screen
TextView lblName = (TextView) findViewById(R.id.name_label);
TextView lblDate = (TextView) findViewById(R.id.date_label);
TextView lblDesc = (TextView) findViewById(R.id.description_label);
lblName.setText(name);
lblDate.setText(date);
lblDesc.setText(description);
}
}
Here is the code for my ReaderAppActivty that puts the results of the parsing into the ListView:
public class ReaderAppActivity extends Fragment {
private ReaderAppActivity local;
private ListView mList;
/**
* This method creates main application view
*/
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//super.onCreate(savedInstanceState);
// Set view
//setContentView(R.layout.fragment_rss);
local = this;
//int position = getArguments().getInt("position");
// String url = getArguments().getString("url");
// List of rivers
String[] menus = getResources().getStringArray(R.array.menus);
// Creating view corresponding to the fragment
View v = inflater.inflate(R.layout.fragment_rss, container, false);
// Set reference to this activity
//local = this;
GetRSSDataTask task = new GetRSSDataTask();
// Start download RSS task
task.execute("http://thechurchofwhatshappeningnow.libsyn.com/rss");
//task.execute(url);
// Debug the thread name
Log.d("ITCRssReader", Thread.currentThread().getName());
//mList = (ListView) findViewById(R.id.rssListMainView);
return v;
}
private class GetRSSDataTask extends AsyncTask<String, Void, List<RssItem> > {
#Override
protected List<RssItem> doInBackground(String... urls) {
// Debug the task thread name
Log.d("ITCRssReader", Thread.currentThread().getName());
try {
// Create RSS reader
RssReader rssReader = new RssReader(urls[0]);
// Parse RSS, get items
return rssReader.getItems();
} catch (Exception e) {
Log.e("ITCRssReader", e.getMessage());
}
return null;
}
#Override
protected void onPostExecute(List<RssItem> result) {
// Get a ListView from main view
ListView mList = (ListView) getView().findViewById(R.id.rssListMainView);
// Create a list adapter
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(getActivity(),R.layout.rss_text, result);
//ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(getActivity(),R.layout.fragment_rss, result);
// Set list adapter for the ListView
mList.setAdapter(adapter);
// Set list view item click listener
mList.setOnItemClickListener(new ListListener(result, getActivity()));
}
}
}
Based on the amount of commented-out code in your RssParseHandler, you've clearly been struggling with this for a bit, and some early attempts were closer to right than what you've got now.
The issue with your current code appears to be that you're not consistently resetting the booleans that drive which part of the item you're setting. Debugging through it, I saw it setting a date into the link field at some point.
But you're actually doing some of that setting in the wrong method, as the characters method doesn't necessarily give you the full contents of the tag. You need to use a Stringbuilder, and I can see from commented-out code that you tried that at some point.
If you collect the text in a stringbuilder and do all the setting in the endElement method, you don't really need the booleans at all, as the endElement method has knowledge of which tag you're ending.
Here's a working version that's perhaps not too far from something you had at some point but which gets rid of all those flag fields.
public class RssParseHandler extends DefaultHandler {
private List<RssItem> rssItems;
private RssItem currentMessage;
private StringBuilder builder;
public RssParseHandler() {
rssItems = new ArrayList<>();
builder = new StringBuilder();
}
public List<RssItem> getItems() {
return this.rssItems;
}
#Override
public void startElement(String uri, String localName, String name,
Attributes attributes) throws SAXException {
super.startElement(uri, localName, name, attributes);
builder.setLength(0);
if (localName.equalsIgnoreCase("item")) {
this.currentMessage = new RssItem();
}
}
#Override
public void endElement(String uri, String localName, String name)
throws SAXException {
super.endElement(uri, localName, name);
if (this.currentMessage != null) {
if (localName.equalsIgnoreCase("item")) {
rssItems.add(currentMessage);
currentMessage = null;
} else if (localName.equalsIgnoreCase("link")) {
currentMessage.setLink(builder.toString());
} else if (localName.equalsIgnoreCase("description")) {
currentMessage.setDescription(builder.toString());
} else if (localName.equalsIgnoreCase("pubDate")){
currentMessage.setDate(builder.toString());
} else if (localName.equalsIgnoreCase("title")) {
currentMessage.setTitle(builder.toString());
}
}
}
#Override
public void characters(char[] ch, int start, int length)
throws SAXException {
super.characters(ch, start, length);
builder.append(ch, start, length);
}
}
Is there any way to refresh Table Adapter Screen on button click.
If i m callling table method again on button click then it is adding a new table adapter screen below the old on.....I s there any way to refresh the existing screen.The button is deleting elements from table after which i want to refresh it.
public static void richlistshow(){
int ik = target_list.size()-1;
while(ik > 0 )
{
Bitmap logoBitmap = Bitmap.getBitmapResource("delete.png");
City aCity = (City)target_list.elementAt(ik);
String modelNumber = aCity.get_city_name().toString();
String modelName = " X ";
//String ne = String.valueOf(ik);
String date_time = " Date-Time";
Object[] row = {modelName, modelNumber,date_time,logoBitmap};
_tableModel.addRow(row);
ik--;
}
TableView tableView = new TableView(_tableModel);
tableView.setDataTemplateFocus(BackgroundFactory.createLinearGradientBackground(Color.YELLOWGREEN, Color.LIMEGREEN, Color.SEAGREEN, Color.SANDYBROWN));
TableController tableController = new TableController(_tableModel, tableView);
tableController.setFocusPolicy(TableController.ROW_FOCUS);
tableView.setController(tableController);
// Specify a simple data template for displaying 3 columns
DataTemplate dataTemplate = new DataTemplate(tableView, NUM_ROWS, NUM_COLUMNS)
{
public Field[] getDataFields(int modelRowIndex)
{
//final int i =modelRowIndex;
Object[] data = (Object[]) (_tableModel.getRow(modelRowIndex));
final String cname = (String)data[1];
/****** Declaring button for deletion of record from database ******/
ButtonField delete =new ButtonField("X",ButtonField.CONSUME_CLICK);
/******* Setting change listener and defining field change within *******/
delete.setChangeListener(new FieldChangeListener() {
/******* defining what should happen when button is clicked ********/
public void fieldChanged(Field field, int context) {
DatabaseHandler delete_row = new DatabaseHandler();
delete_row.deletetarget(cname);
/****calling function to retrieve values from the databasse table.***/
delete_row.retrieveTarget();
/****************calling method again to show the updated values*************/
richlistshow();//for showing refreshed data after deletion of a record
}
});
Field[] fields = {delete, new LabelField((String) data[1]), new LabelField((String) data[2]),new BitmapField((Bitmap)data[3])};
return fields;
}
};
dataTemplate.useFixedHeight(true);
// Define regions and row height
dataTemplate.setRowProperties(0, new TemplateRowProperties(ROW_HEIGHT));
for(int i = 0; i < NUM_COLUMNS; i++)
{
dataTemplate.createRegion(new XYRect(i, 0, 1, 1));
dataTemplate.setColumnProperties(i, new TemplateColumnProperties(Display.getWidth() / NUM_COLUMNS));
}
// Apply the template to the view
tableView.setDataTemplate(dataTemplate);
mainManager.add(tableView);
}
public final static class MyCity
{
private String _name;
private String _datetime;
private String _button;
private Bitmap _bitmap;
MyCity(String name, String datetime, String button, Bitmap bitmap)
{
_name = name;
_datetime = datetime;
_button = button;
_bitmap = bitmap;
}
public String getName()
{
return _name;
}
public String getDatetime()
{
return _datetime;
}
public String getButton()
{
return _button;
}
public Bitmap getBitmap()
{
return _bitmap;
}
}
/****************TABLE CONTROLLER CLASS ******************/
private class CityTableModelAdapter extends TableModelAdapter
{
public int getNumberOfRows()
{
return _cities.size();
}
public int getNumberOfColumns()
{
return NUM_COLUMNS;
}
protected boolean doAddRow(Object row)
{
Object[] arrayRow = (Object[]) row;
System.out.println("! : "+arrayRow[0]+" #: "+arrayRow[1]+" #: "+arrayRow[2]);
_cities.addElement(new MyCity((String) arrayRow[0], (String) arrayRow[1], (String) arrayRow[2], (Bitmap) arrayRow[3]));
return true;
}
protected Object doGetRow(int index)
{
MyCity mycity = (MyCity) _cities.elementAt(index);
Object[] row = {mycity.getName(),mycity.getDatetime(),mycity.getButton(),mycity.getBitmap()};
return row;
}
}
I have fetched contact list successfully. But I am not able to add check boxes with that list. I have made separate program from checkbox and its working. but not with the contact list. Can anybody tell me here where should I add checkboxes? Here is the code:
public final class ContactsScreen extends MainScreen implements ListFieldCallback {
private ListField listField;
private ContactList blackBerryContactList;
private Vector blackBerryContacts;
public ContactsScreen(){
CheckboxField checkBox1 = new CheckboxField();
setTitle(new LabelField( "Contacts", LabelField.ELLIPSIS | LabelField.USE_ALL_WIDTH ));
listField = new ListField();
listField.setCallback(this);
add(listField);
add(new RichTextField("Size" +(listField)));
reloadContactList();
}
private boolean reloadContactList() {
try {
blackBerryContactList = (ContactList)PIM.getInstance().openPIMList(PIM.CONTACT_LIST, PIM.READ_ONLY);
Enumeration allContacts = blackBerryContactList.items();
blackBerryContacts = enumToVector(allContacts);
listField.setSize(blackBerryContacts.size());
return true;
}
catch(PIMException e){
return false;
}
}
private Vector enumToVector(Enumeration contactEnum) {
Vector v = new Vector();
if (contactEnum == null)
return v;
while (contactEnum.hasMoreElements()) {
v.addElement(contactEnum.nextElement());
}
return v;
}
public void drawListRow(ListField fieldVar, Graphics graphics, int index, int y, int width){
if ( listField == fieldVar && index < blackBerryContacts.size())
{
add(new RichTextField(blackBerryContacts.size()));
BlackBerryContact item = (BlackBerryContact)blackBerryContacts.elementAt(index);
String displayName = getDisplayName(item);
graphics.drawText(displayName, 0, y, 0, width);
}
}
public Object get(ListField fieldVar, int index)
{
if (listField == fieldVar) {
return blackBerryContacts.elementAt(index);
}
return null;
}
public int getPreferredWidth(ListField fieldVar ) {
return Display.getWidth();
}
public int indexOfList(ListField fieldVar, String prefix, int start)
{
return -1; // not implemented
}
public static String getDisplayName(Contact contact) {
if (contact == null) {
return null; }
String displayName = null;
// First, see if there is a meaningful name set for the contact.
if (contact.countValues(Contact.NAME) > 0) {
final String[] name = contact.getStringArray(Contact.NAME, 0);
final String firstName = name[Contact.NAME_GIVEN];
final String lastName = name[Contact.NAME_FAMILY];
if (firstName != null && lastName != null) {
displayName = firstName + " " + lastName;
} else if (firstName != null) {
displayName = firstName;
} else if (lastName != null) {
displayName = lastName;
}
} return displayName;
}
}
ListField is not designed for this. Its list item is not a Manager, so you can't add any child fields to it. In other words this is not possible with ListField on BB. ListField is a way to represent on UI a long list without eating too much RAM (since in this case there is the only UI object - the ListField).
If your list is not too long (10 - 20 items) then consider using VerticalFieldManager instead of ListField. If list is long && you really need check boxes on it then consider using VerticalFieldManager + list pagination.
Below is my application code. i want alarm to ring on my blackberry on every 6 of this month whether this apllication is running or not. please guide me in details i am a beginner.
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;
import net.rim.device.api.system.*;
import net.rim.device.api.util.*;
import java.util.*;
import java.lang.String.*;
public class ListChk extends UiApplication
{
String getFirstName;
String getLastName;
String getEmail;
String getGender;
String getStatus;
String getCompany;
/*declaring text fields for user input*/
private AutoTextEditField firstName;
private AutoTextEditField lastName;
private AutoTextEditField company;
private EmailAddressEditField email;
/*declaring choice field for user input*/
private ObjectChoiceField gender;
/*declaring check box field for user input*/
private CheckboxField status;
//Declaring button fields
private ButtonField save;
private ButtonField close;
private ButtonField List;
private ButtonField search;
/*declaring vector*/
private static Vector _data;
/*declaring persistent object*/
private static PersistentObject store;
/*creating an entry point*/
public static void main(String[] args)
{
ListChk objListChk = new ListChk();
objListChk.enterEventDispatcher();
}//end of main of ListChk
public ListChk()
{
/*Creating an object of the main screen class to use its functionalities*/
MainScreen mainScreen = new MainScreen();
//setting title of the main screen
mainScreen.setTitle(new LabelField("Enter Your Data"));
//creating text fields for user input
firstName = new AutoTextEditField("First Name: ", "");
lastName= new AutoTextEditField("Last Name: ", "");
email= new EmailAddressEditField("Email:: ", "");
company = new AutoTextEditField("Company: ", "");
//creating choice field for user input
String [] items = {"Male","Female"};
gender= new ObjectChoiceField("Gender",items);
//creating Check box field
status = new CheckboxField("Active",true);
//creating Button fields and adding functionality using listeners
// A button that saves the the user data persistently when it is clicked
save = new ButtonField("Save",ButtonField.CONSUME_CLICK);
save.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
save();
}
});
// a button which closes the entire application when clicked
close = new ButtonField("Close",ButtonField.CONSUME_CLICK);
close.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
onClose();
}
});
// A button that shows the List of all Data being stored persistently
List = new ButtonField("List",ButtonField.CONSUME_CLICK);
List.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context){
// pushing the next screen
pushScreen(new ListScreen());
}
});
search = new ButtonField("Search",ButtonField.CONSUME_CLICK);
search.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
pushScreen(new SearchScreen());
}
});
//adding the input fields to the main screen
mainScreen.add(firstName);
mainScreen.add(lastName);
mainScreen.add(email);
mainScreen.add(company);
mainScreen.add(gender);
mainScreen.add(status);
// Addning horizontal field manager
HorizontalFieldManager horizontal = new HorizontalFieldManager(HorizontalFieldManager.FIELD_HCENTER);
//adding buttons to the main screen in Horizontal field manager
horizontal.add(close);
horizontal.add(save);
horizontal.add(List);
horizontal.add(search);
//Adding the horizontal field manger to the screen
mainScreen.add(horizontal);
//adding menu items
mainScreen.addMenuItem(saveItem);
mainScreen.addMenuItem(getItem);
mainScreen.addMenuItem(Deleteall);
//pushing the main screen
pushScreen(mainScreen);
}
private MenuItem Deleteall = new MenuItem("Delete all",110,10)
{
public void run()
{
int response = Dialog.ask(Dialog.D_YES_NO,"Are u sure u want to delete entire Database");
if(Dialog.YES == response){
PersistentStore.destroyPersistentObject(0xdec6a67096f833cL);
Dialog.alert("Closing Application");
onClose();
}
else
Dialog.inform("Thank God");
}
};
//adding functionality to menu item "saveItem"
private MenuItem saveItem = new MenuItem("Save", 110, 10)
{
public void run()
{
//Calling save method
save();
}
};
//adding functionality to menu item "saveItem"
private MenuItem getItem = new MenuItem("Get", 110, 11)
{
//running thread for this menu item
public void run()
{
//synchronizing thread
synchronized (store)
{
//getting contents of the persistent object
_data = (Vector) store.getContents();
try{
for (int i = _data.size()-1; i >-1; i--)
{
StoreInfo info = (StoreInfo)_data.elementAt(i);
//checking for empty object
if (!_data.isEmpty())
{
//if not empty
//create a new object of Store Info class
//storing information retrieved in strings
getFirstName = (info.getElement(StoreInfo.NAME));
getLastName = (info.getElement(StoreInfo.LastNAME));
getEmail = (info.getElement(StoreInfo.EMail));
getGender = (info.getElement(StoreInfo.GenDer));
getStatus = (info.getElement(StoreInfo.setStatus));
getCompany = (info.getElement(StoreInfo.setCompany));
//calling the show method
show();
}
}
}
catch(Exception e){}
}
}
};
public void save()
{
//creating an object of inner class StoreInfo
StoreInfo info = new StoreInfo();
//getting the test entered in the input fields
info.setElement(StoreInfo.NAME, firstName.getText());
info.setElement(StoreInfo.LastNAME,lastName.getText());
info.setElement(StoreInfo.EMail, email.getText());
info.setElement(StoreInfo.setCompany, company.getText());
info.setElement(StoreInfo.GenDer,gender.toString());
if(status.getChecked())
info.setElement(StoreInfo.setStatus, "Active");
else
info.setElement(StoreInfo.setStatus, "In Active");
//adding the object to the end of the vector
_data.addElement(info);
//synchronizing the thread
synchronized (store)
{
store.setContents(_data);
store.commit();
}
//resetting the input fields
Dialog.inform("Success!");
firstName.setText(null);
lastName.setText(null);
email.setText("");
company.setText(null);
gender.setSelectedIndex("Male");
status.setChecked(true);
}
//coding for persistent store
static {
store =
PersistentStore.getPersistentObject(0xdec6a67096f833cL);
synchronized (store) {
if (store.getContents() == null) {
store.setContents(new Vector());
store.commit();
}
}
_data = new Vector();
_data = (Vector) store.getContents();
}
//new class store info implementing persistable
private static final class StoreInfo implements Persistable
{
//declaring variables
private Vector _elements;
public static final int NAME = 0;
public static final int LastNAME = 1;
public static final int EMail= 2;
public static final int GenDer = 3;
public static final int setStatus = 4;
public static final int setCompany = 5;
public StoreInfo()
{
_elements = new Vector(6);
for (int i = 0; i < _elements.capacity(); ++i)
{
_elements.addElement(new String(""));
}
}
public String getElement(int id)
{
return (String) _elements.elementAt(id);
}
public void setElement(int id, String value)
{
_elements.setElementAt(value, id);
}
}
//details for show method
public void show()
{
Dialog.alert("Name is "+getFirstName+" "+getLastName+"\nGender is "+getGender+"\nE-mail: "+getEmail+"\nStatus is "+getStatus);
}
public void list()
{
Dialog.alert("haha");
}
//creating save method
//overriding onClose method
public boolean onClose()
{
System.exit(0);
return true;
}
class ListScreen extends MainScreen
{
String getUserFirstName;
String getUserLastName;
String getUserEmail;
String getUserGender;
String getUserStatus;
String getUserCompany;
String[] setData ;
String getData = new String();
String collectData = "";
ObjectListField fldList;
int counter = 0;
private ButtonField btnBack;
public ListScreen()
{
setTitle(new LabelField("Showing Data",LabelField.NON_FOCUSABLE));
//getData = myList();
//Dialog.alert(getData);
// setData = split(getData,"$");
// for(int i = 0;i<setData.length;i++)
// {
// add(new RichTextField(setData[i]+"#####"));
// }
showList();
btnBack = new ButtonField("Back",ButtonField.CONSUME_CLICK|ButtonField.FIELD_HCENTER);
btnBack.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field,int context)
{
UiApplication.getUiApplication().popScreen(getScreen());
}
});
add(btnBack);
}
public void showList()
{
HorizontalFieldManager hfManager = new HorizontalFieldManager(HorizontalFieldManager.HORIZONTAL_SCROLLBAR|HorizontalFieldManager.HORIZONTAL_SCROLL);
//SeparatorField spManager = new SeparatorField();
LabelField lblcheck = new LabelField("check",LabelField.NON_FOCUSABLE);
getData = myList();
setData = split(getData,"$");
fldList = new ObjectListField(ObjectListField.MULTI_SELECT);
fldList.set(setData);
//fldList.setEmptyString("heloo", 12);
//hfManager.add(lblcheck);
hfManager.add(fldList);
//hfManager.add(spManager);
add(hfManager);
addMenuItem(new MenuItem("Select", 100, 1) {
public void run() {
int selectedIndex = fldList.getSelectedIndex();
String item = (String)fldList.get(fldList, selectedIndex);
pushScreen(new ShowDataScreen(item));
}
});
}
public String[] split(String inString, String delimeter) {
String[] retAr;
try {
Vector vec = new Vector();
int indexA = 0;
int indexB = inString.indexOf(delimeter);
while (indexB != -1) {
vec.addElement(new String(inString.substring(indexA, indexB)));
indexA = indexB + delimeter.length();
indexB = inString.indexOf(delimeter, indexA);
}
vec.addElement(new String(inString.substring(indexA, inString
.length())));
retAr = new String[vec.size()];
for (int i = 0; i < vec.size(); i++) {
retAr[i] = vec.elementAt(i).toString();
}
} catch (Exception e) {
String[] ar = { e.toString() };
return ar;
}
return retAr;
}//end of Split Method
public String myList()
{
_data = (Vector) store.getContents();
try
{
for (int i = _data.size()-1; i >-1; i--,counter++)
{
StoreInfo info = (StoreInfo)_data.elementAt(i);
//checking for empty object
if (!_data.isEmpty())
{
//if not empty
//create a new object of Store Info class
//storing information retrieved in strings
//StoreInfo info = (StoreInfo)_data.lastElement();
getUserFirstName = (info.getElement(StoreInfo.NAME));
getUserLastName = (info.getElement(StoreInfo.LastNAME));
//getUserEmail = (info.getElement(StoreInfo.EMail));
//getUserGender = (info.getElement(StoreInfo.GenDer));
//getUserStatus = (info.getElement(StoreInfo.setStatus));
getUserCompany = (info.getElement(StoreInfo.setCompany));
collectData = collectData + getUserFirstName+" "+getUserLastName+" "+getUserCompany+ "$";
}
}
}
catch(Exception e){}
return collectData;
}//end of myList method
public boolean onClose()
{
System.exit(0);
return true;
}
}//end of class ListScreen
class ShowDataScreen extends MainScreen
{
String getFirstName;
String getLastName;
String getCompany;
String getEmail;
String getGender;
String getStatus;
String[] getData;
public ShowDataScreen(String data)
{
getData = split(data," ");
getFirstName = getData[0];
getLastName = getData[1];
getCompany = getData[2];
_data = (Vector) store.getContents();
try
{
for (int i = _data.size()-1; i >-1; i--)
{
StoreInfo info = (StoreInfo)_data.elementAt(i);
if (!_data.isEmpty())
{
if((getFirstName.equalsIgnoreCase(info.getElement(StoreInfo.NAME))) && (getLastName.equalsIgnoreCase(info.getElement(StoreInfo.LastNAME))) && (getCompany.equalsIgnoreCase(info.getElement(StoreInfo.setCompany))))
{
getEmail = info.getElement(StoreInfo.EMail);
getGender = info.getElement(StoreInfo.GenDer);
getStatus = info.getElement(StoreInfo.setStatus);
HorizontalFieldManager hfManager = new HorizontalFieldManager(HorizontalFieldManager.NON_FOCUSABLE);
AutoTextEditField name = new AutoTextEditField("Name: ",getFirstName+" "+getLastName);
AutoTextEditField email = new AutoTextEditField("Email: ",getEmail);
AutoTextEditField company = new AutoTextEditField("Company: ",getCompany);
AutoTextEditField Gender = new AutoTextEditField("Gender: ",getGender);
AutoTextEditField status = new AutoTextEditField("Status: ",getStatus);
add(name);
add(email);
add(company);
add(Gender);
add(status);
}
}
}//end of for loop
}//end of try
catch(Exception e){}
//Dialog.alert("fname is "+getFirstName+"\nlastname = "+getLastName+" company is "+getCompany);
}
public String[] split(String inString, String delimeter) {
String[] retAr;
try {
Vector vec = new Vector();
int indexA = 0;
int indexB = inString.indexOf(delimeter);
while (indexB != -1) {
vec.addElement(new String(inString.substring(indexA, indexB)));
indexA = indexB + delimeter.length();
indexB = inString.indexOf(delimeter, indexA);
}
vec.addElement(new String(inString.substring(indexA, inString
.length())));
retAr = new String[vec.size()];
for (int i = 0; i < vec.size(); i++) {
retAr[i] = vec.elementAt(i).toString();
}
} catch (Exception e) {
String[] ar = { e.toString() };
return ar;
}
return retAr;
}//end of Split Method
}
class SearchScreen extends MainScreen
{
private ButtonField btnFirstName;
private ButtonField btnLastName;
private ButtonField btnSearch;
private ButtonField btnEmail;
private SeparatorField sp;
String userName;
HorizontalFieldManager hr = new HorizontalFieldManager();
public AutoTextEditField searchField;
public SearchScreen()
{
sp = new SeparatorField();
setTitle(new LabelField("your Search Options"));
add(new RichTextField("Search by : "));
btnFirstName = new ButtonField("First Name",ButtonField.CONSUME_CLICK);
hr.add(btnFirstName);
btnFirstName.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
//HorizontalFieldManager hrs = new HorizontalFieldManager();
searchField = new AutoTextEditField("First Name: ","ali");
add(searchField);
btnSearch = new ButtonField("Search",ButtonField.CONSUME_CLICK);
btnSearch.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
//Dialog.alert(searchField.getText());
pushScreen(new FirstnameScreen(searchField.getText()));
//FirstnameScreen obj = new FirstnameScreen();
//obj.name= searchField.getText();
}
});
add(btnSearch);
//hrs.add(sp);
}
});
btnLastName = new ButtonField("Last Name",ButtonField.CONSUME_CLICK);
hr.add(btnLastName);
btnLastName.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int Context)
{
searchField = new AutoTextEditField("Last Name: ","");
add(searchField);
btnSearch = new ButtonField("Search",ButtonField.CONSUME_CLICK);
btnSearch.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
//Dialog.alert(searchField.getText());
pushScreen(new LastnameScreen(searchField.getText()));
//FirstnameScreen obj = new FirstnameScreen();
//obj.name= searchField.getText();
}
});
add(btnSearch);
}
});
btnEmail = new ButtonField("Email",ButtonField.CONSUME_CLICK);
hr.add(btnEmail);
btnEmail.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int Context)
{
searchField = new AutoTextEditField("Email: ","");
add(searchField);
btnSearch = new ButtonField("Search",ButtonField.CONSUME_CLICK);
btnSearch.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
//Dialog.alert(searchField.getText());
pushScreen(new EmailScreen(searchField.getText()));
//FirstnameScreen obj = new FirstnameScreen();
//obj.name= searchField.getText();
}
});
add(btnSearch);
}
});
add(hr);
}
void myShow()
{
Dialog.alert(searchField.getText());
}
}
class FirstnameScreen extends MainScreen
{
String userName;
private Manager mGrid;
String firstUserName;
String lastUserName;
String userEmail;
String userGender;
String userStatus;
ButtonField btnBack;
Font font;
public FirstnameScreen(String name)
{
setTitle(new LabelField("your Search Results"));
add(new RichTextField("Search results for"+name));
userName = name;
searchFirstName();
btnBack = new ButtonField("Back",ButtonField.CONSUME_CLICK);
btnBack.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
UiApplication.getUiApplication().popScreen(getScreen());
}
});
add(btnBack);
}
public void searchFirstName()
{
ButtonField btnDelete;
if (null != mGrid && null != mGrid.getManager())
mGrid.getManager().delete(mGrid);
int colWidth = net.rim.device.api.system.Display.getWidth() / 4;
mGrid = new GridFieldManager(new int[] { 0, colWidth, colWidth,
colWidth, colWidth }, VERTICAL_SCROLL | VERTICAL_SCROLLBAR);
mGrid.add(new NullField(FOCUSABLE));
mGrid.add(new LabelField("Name"));
mGrid.add(new LabelField("E-Mail"));
mGrid.add(new LabelField("Gender"));
mGrid.add(new LabelField("Active"));
//mGrid.add(new ButtonField("Delete"));
//SeparatorField sps = new SeparatorField();
//mGrid.add(sps);
add(mGrid);
_data = (Vector) store.getContents();
try {
for (int i = _data.size() - 1; i > -1; i--) {
StoreInfo info = (StoreInfo) _data.elementAt(i);
// checking for empty object
if (!_data.isEmpty()) {
firstUserName = (info.getElement(StoreInfo.NAME));
if(firstUserName.equalsIgnoreCase(userName))
{
// if not empty
// create a new object of Store Info class
// stored information retrieved in strings
lastUserName = (info.getElement(StoreInfo.LastNAME));
userEmail = (info.getElement(StoreInfo.EMail));
userGender = (info.getElement(StoreInfo.GenDer));
userStatus = (info.getElement(StoreInfo.setStatus));
final int sn = i;
// calling the listAll method
mGrid.add(new NullField(FOCUSABLE));
mGrid.add(new LabelField(firstUserName + " "
+ lastUserName));
mGrid.add(new LabelField(userEmail));
mGrid.add(new LabelField(userGender));
mGrid.add(new LabelField(userStatus));
btnDelete = new ButtonField("Delete",ButtonField.CONSUME_CLICK);
btnDelete.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
_data.removeElementAt(sn);
}
});
add(btnDelete);
// SeparatorField sps1 = new SeparatorField();
//mGrid.add(sps1);
}
}
}
} catch (Exception e) {
}
}
}
class LastnameScreen extends MainScreen
{
String userName;
private Manager mGrid;
String firstUserName;
String lastUserName;
String userEmail;
String userGender;
String userStatus;
ButtonField btnBack;
Font font;
public LastnameScreen(String name)
{
setTitle(new LabelField("your Search Results"));
add(new RichTextField("Search results for"+name));
userName = name;
searchLastName();
btnBack = new ButtonField("Back",ButtonField.CONSUME_CLICK);
btnBack.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
UiApplication.getUiApplication().popScreen(getScreen());
}
});
add(btnBack);
}
public void searchLastName()
{
ButtonField btnDelete;
if (null != mGrid && null != mGrid.getManager())
mGrid.getManager().delete(mGrid);
int colWidth = net.rim.device.api.system.Display.getWidth() / 4;
mGrid = new GridFieldManager(new int[] { 0, colWidth, colWidth,
colWidth, colWidth }, VERTICAL_SCROLL | VERTICAL_SCROLLBAR);
mGrid.add(new NullField(FOCUSABLE));
mGrid.add(new LabelField("Name"));
mGrid.add(new LabelField("E-Mail"));
mGrid.add(new LabelField("Gender"));
mGrid.add(new LabelField("Active"));
//mGrid.add(new ButtonField("Delete"));
//SeparatorField sps = new SeparatorField();
//mGrid.add(sps);
add(mGrid);
_data = (Vector) store.getContents();
try {
for (int i = _data.size() - 1; i > -1; i--) {
StoreInfo info = (StoreInfo) _data.elementAt(i);
// checking for empty object
if (!_data.isEmpty()) {
lastUserName = (info.getElement(StoreInfo.LastNAME));
if(lastUserName.equalsIgnoreCase(userName))
{
// if not empty
// create a new object of Store Info class
// stored information retrieved in strings
firstUserName = (info.getElement(StoreInfo.NAME));
userEmail = (info.getElement(StoreInfo.EMail));
userGender = (info.getElement(StoreInfo.GenDer));
userStatus = (info.getElement(StoreInfo.setStatus));
final int sn = i;
// calling the listAll method
mGrid.add(new NullField(FOCUSABLE));
mGrid.add(new LabelField(firstUserName + " "
+ lastUserName));
mGrid.add(new LabelField(userEmail));
mGrid.add(new LabelField(userGender));
mGrid.add(new LabelField(userStatus));
btnDelete = new ButtonField("Delete",ButtonField.CONSUME_CLICK);
btnDelete.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
_data.removeElementAt(sn);
}
});
add(btnDelete);
// SeparatorField sps1 = new SeparatorField();
//mGrid.add(sps1);
}
}
}
} catch (Exception e) {
}
}
}
class EmailScreen extends MainScreen
{
String userName;
private Manager mGrid;
String firstUserName;
String lastUserName;
String userEmail;
String userGender;
String userStatus;
ButtonField btnBack;
Font font;
public EmailScreen(String mail)
{
setTitle(new LabelField("your Search Results"));
add(new RichTextField("Search results for"+mail));
userName = mail;
searchEmail();
btnBack = new ButtonField("Back",ButtonField.CONSUME_CLICK);
btnBa
What are the benefits of integrating with the built-in alarm application? Would it be better for your application to place an event in the device's calendar and make the event show a reminder?
If you have to have a more prominent alarm, why not do it yourself? An alarm is an action the phone does (either make a sound and/or vibrate) that shows on the screen why it is taking that action and the action stops when someone responds to it.
Can you just make an app that starts in the background, checks the day, and makes a sound/vibrates on that day?
The default Alarm app on my phone only supports one time to ring. If I set it to wake me up at 4 a.m., but your app reschedules the alarm on my phone for 8 a.m., you would instantly lose a customer (after I wake up 4 hours too late).
I am developing an application in which I want to store many data entries using persistent store. the problem is whenever new entry is made it replaces the existing entry.
here is my code please help me.
import net.rim.device.api.ui.*;
import net.rim.device.api.ui.component.*;
import net.rim.device.api.ui.container.*;
import net.rim.device.api.system.*;
import net.rim.device.api.util.*;
import java.util.*;
/*An application in which user enters the data. this data is displayed when user press the save button*/
public class Display extends UiApplication {
/*declaring Strings to store the data of the user*/
String getFirstName;
String getLastName;
String getEmail;
String getGender;
String getStatus;
/*declaring text fields for user input*/
private AutoTextEditField firstName;
private AutoTextEditField lastName;
private EmailAddressEditField email;
/*declaring choice field for user input*/
private ObjectChoiceField gender;
/*declaring check box field for user input*/
private CheckboxField status;
//Declaring button fields
private ButtonField save;
private ButtonField close;
/*declaring vector*/
private static Vector _data;
/*declaring persistent object*/
private static PersistentObject store;
/*creating an entry point*/
public static void main(String[] args)
{
/*creating instance of the class */
Display app = new Display();
app.enterEventDispatcher();
}
/*creating default constructor*/
public Display()
{
/*Creating an object of the main screen class to use its functionalities*/
MainScreen mainScreen = new MainScreen();
//setting title of the main screen
mainScreen.setTitle(new LabelField("Enter Your Data"));
//creating text fields for user input
firstName = new AutoTextEditField("First Name: ", "");
lastName= new AutoTextEditField("Last Name: ", "");
email= new EmailAddressEditField("Email:: ", "");
//creating choice field for user input
String [] items = {"Male","Female"};
gender= new ObjectChoiceField("Gender",items);
//creating Check box field
status = new CheckboxField("Active",true);
//creating Button fields and adding functionality using listeners
save = new ButtonField("Save",ButtonField.CONSUME_CLICK);
save.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
save();
}
});
close = new ButtonField("Close",ButtonField.CONSUME_CLICK);
close.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
onClose();
}
});
//adding the input fields to the main screen
mainScreen.add(firstName);
mainScreen.add(lastName);
mainScreen.add(email);
mainScreen.add(gender);
mainScreen.add(status);
//adding buttons to the main screen
mainScreen.add(close);
mainScreen.add(save);
//adding menu items
mainScreen.addMenuItem(saveItem);
mainScreen.addMenuItem(getItem);
//pushing the main screen
pushScreen(mainScreen);
}
//adding functionality to menu item "saveItem"
private MenuItem saveItem = new MenuItem("Save", 110, 10)
{
public void run()
{
//Calling save method
save();
}
};
//adding functionality to menu item "saveItem"
private MenuItem getItem = new MenuItem("Get", 110, 11)
{
//running thread for this menu item
public void run()
{
//synchronizing thread
synchronized (store)
{
//getting contents of the persistent object
_data = (Vector) store.getContents();
//checking for empty object
if (!_data.isEmpty())
{
//if not empty
//create a new object of Store Info class
StoreInfo info = (StoreInfo)
//returning last component of the vector
_data.lastElement();
//storing information retrieved in strings
getFirstName = (info.getElement(StoreInfo.NAME));
getLastName = (info.getElement(StoreInfo.LastNAME));
getEmail = (info.getElement(StoreInfo.EMail));
getGender = (info.getElement(StoreInfo.GenDer));
getStatus = (info.getElement(StoreInfo.setStatus));
//calling the show method
show();
}
}
}
};
//coding for persistent store
static {
store =
PersistentStore.getPersistentObject(0xdec6a67096f833cL);
synchronized (store) {
if (store.getContents() == null) {
store.setContents(new Vector());
store.commit();
}
}
_data = new Vector();
_data = (Vector) store.getContents();
}
//new class store info implementing persistable
private static final class StoreInfo implements Persistable
{
//declaring variables
private Vector _elements;
public static final int NAME = 0;
public static final int LastNAME = 1;
public static final int EMail= 2;
public static final int GenDer = 3;
public static final int setStatus = 4;
public StoreInfo()
{
_elements = new Vector(5);
for (int i = 0; i < _elements.capacity(); ++i)
{
_elements.addElement(new String(""));
}
}
public String getElement(int id)
{
return (String) _elements.elementAt(id);
}
public void setElement(int id, String value)
{
_elements.setElementAt(value, id);
}
}
//details for show method
public void show()
{
Dialog.alert("Name is "+getFirstName+" "+getLastName+"\nGender is "+getGender+"\nE-mail: "+getEmail+"\nStatus is "+getStatus);
}
//creating save method
public void save()
{
//creating an object of inner class StoreInfo
StoreInfo info = new StoreInfo();
//getting the test entered in the input fields
info.setElement(StoreInfo.NAME, firstName.getText());
info.setElement(StoreInfo.LastNAME,lastName.getText());
info.setElement(StoreInfo.EMail, email.getText());
info.setElement(StoreInfo.GenDer,gender.toString());
if(status.getChecked())
info.setElement(StoreInfo.setStatus, "Active");
else
info.setElement(StoreInfo.setStatus, "In Active");
//adding the object to the end of the vector
_data.addElement(info);
//synchronizing the thread
synchronized (store)
{
store.setContents(_data);
store.commit();
}
//resetting the input fields
Dialog.inform("Success!");
firstName.setText(null);
lastName.setText(null);
email.setText("");
gender.setSelectedIndex("Male");
status.setChecked(true);
}
//overriding onClose method
public boolean onClose()
{
System.exit(0);
return true;
}
}
Actually it's saves everything perfectly, but retrieving only the last one record:
StoreInfo info = (StoreInfo)_data.lastElement();
Try this to display every record:
for (int i = 0; i < _data.size(); i++) {
StoreInfo info = (StoreInfo)_data.elementAt(i);
...
show();
}