Add image and text dynamically by user input(user is providing data) in Android Custom LIst View - android-listview

Explanation:-
I have a form in which user is providing his firstname and lastname. On click of submit button on the form containing firstname and lastname, this firstname and lastname will be displayed in the first row of list then second user will perform the same task and then that firstname and lastname of the second user will be displayed in the second row of the list.

You need to write code in a below way to achieve your target....
public class Restaurant extends Activity {
List<Restaurant> model=new ArrayList<Restaurant>();
RestaurantAdapter adapter=null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button save=(Button)findViewById(R.id.save);
save.setOnClickListener(onSave);
ListView list=(ListView)findViewById(R.id.restaurants);
adapter=new RestaurantAdapter();
list.setAdapter(adapter);
}
private View.OnClickListener onSave=new View.OnClickListener() {
public void onClick(View v) {
Restaurant r=new Restaurant();
EditText name=(EditText)findViewById(R.id.name);
EditText address=(EditText)findViewById(R.id.addr);
r.setName(name.getText().toString());
r.setAddress(address.getText().toString());
RadioGroup types=(RadioGroup)findViewById(R.id.types);
switch (types.getCheckedRadioButtonId()) {
case R.id.sit_down:
r.setType("sit_down");
break;
case R.id.take_out:
r.setType("take_out");
break;
case R.id.delivery:
r.setType("delivery");
break;
}
adapter.add(r);
}
};
class RestaurantAdapter extends ArrayAdapter<Restaurant> {
RestaurantAdapter() {
super(LunchList.this, R.layout.row, model);
}
public View getView(int position, View convertView,
ViewGroup parent) {
View row=convertView;
RestaurantHolder holder=null;
if (row==null) {
LayoutInflater inflater=getLayoutInflater();
row=inflater.inflate(R.layout.row, parent, false);
holder=new RestaurantHolder(row);
row.setTag(holder);
}
else {
holder=(RestaurantHolder)row.getTag();
}
holder.populateFrom(model.get(position));
return(row);
}
}
static class RestaurantHolder {
private TextView name=null;
private TextView address=null;
private ImageView icon=null;
RestaurantHolder(View row) {
name=(TextView)row.findViewById(R.id.title);
address=(TextView)row.findViewById(R.id.address);
icon=(ImageView)row.findViewById(R.id.icon);
}
void populateFrom(Restaurant r) {
name.setText(r.getName());
address.setText(r.getAddress());
if (r.getType().equals("sit_down")) {
icon.setImageResource(R.drawable.ball_red);
}
else if (r.getType().equals("take_out")) {
icon.setImageResource(R.drawable.ball_yellow);
}
else {
icon.setImageResource(R.drawable.ball_green);
}
}
}
I recommend you to use this code:
https://github.com/commonsguy/cw-lunchlist/tree/master/05-FancyList/LunchList
to get started and to develop your program as you need

Related

Delete listview items in custom adapter

I'm sorry for this question, but I'm a new in Android developing. I searched in internet, but I don't found any appropriate answer. I have a following code in my custom adapter:
public class ItemsAdapter extends CursorAdapter {
public ItemsAdapter(Context context, Cursor c) {
super(context, c, false);
}
#Override
public void bindView(View view, Context arg1, Cursor cursor) {
ViewHolder viewHolder = (ViewHolder) view.getTag();
viewHolder.title.setText(cursor.getString(cursor
.getColumnIndex("title")));
viewHolder.publishDate.setText(cursor.getString(cursor.getColumnIndex("date_time")));
viewHolder.rssNewsImage.setImageResource(R.drawable.rssnews);
}
#Override
public View newView(Context arg0, Cursor arg1, ViewGroup arg2) {
View view = LayoutInflater.from(mContext).inflate(
R.layout.listview_rssreaderactivity_row, arg2, false);
ViewHolder viewHolder = new ViewHolder();
viewHolder.title = (TextView) view
.findViewById(R.id.tw_title_listview_row_main);
viewHolder.publishDate = (TextView) view.findViewById(R.id.tw_pubDate_listview_row_main);
viewHolder.rssNewsImage = (ImageView) view.findViewById(R.id.imageRssView);
view.setTag(viewHolder);
return view;
}
public class ViewHolder {
TextView title;
TextView publishDate;
ImageView rssNewsImage;
}
}
I want to delete listView item in my custom adapter. Here is my code for click events:
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view,
final int position, long id) {
AlertDialog.Builder itemLongClickdialog = new AlertDialog.Builder(
RssNewsActivity.this);
itemLongClickdialog.setItems(R.array.array_longclick_item,
new OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
});
I can't delete given item.
How to resolve this problem? I will appreciate all answers.
Try This:
DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// User clicked OK button
ItemsAdapter dba = new ItemsAdapter (yourActivity);
dba.open();
dba.remove(_id);
Log.i("TAAG", "removed: "+_id);
dba.close();
cursor.requery();
listview.getadaper().notifyDataSetChanged();
}
});

Events of multiple cells in single column

I have two buttons(edit + delete) in one column.
ButtonCell functionButtonCell = new ButtonCell() {
#Override
public void render(final Context context, final SafeHtml data, final SafeHtmlBuilder sb) {
sb.appendHtmlConstant("<button type='button' class='gwt-Button' style = 'width:60px;margin:1px;'>Edit</button>");
sb.appendHtmlConstant("<br/>");
sb.appendHtmlConstant("<button type='button' class='gwt-Button' style = 'width:60px;margin:1px;'>Delete</button>");
}
};
functionColumn = new Column<AdminModel, String>(functionButtonCell) {
public String getValue(final AdminModel object) {
return object.getSeq().toString();
}
};
Bind event for this column in Presenter as
.........
view.getFunctionColumn().setFieldUpdater(new FieldUpdater<AdminModel, String>() {
public void update(final int index, final AdminModel object, final String value) {
Window.alert(index + "-" + value);
}
});
After clicked on edit button , alert-box has appeared , but not on delete button. When I clicked on delete button , nothing has appeared. What would be the problem ?
Addition: How can I decide which button was clicked by user (edit or delete) from my presenter ?
I would really appreciate any of your suggestions because I am troubled on it for a long times. Thanks!
ButtonCell filters events on the first child element only: https://gwt.googlesource.com/gwt/+/2.6.1/user/src/com/google/gwt/cell/client/ButtonCell.java This is why you don't get an event when clicking the second button (note: the goal of that code is to make sure you clicked on the button, and not on blank space around the button; see https://gwt.googlesource.com/gwt/+/a0dc88c8be7408be9554f746eb1ec93798183a28)
The easiest way to implement a two-button cell is to use a CompositeCell; it requires that child cells are rendered into sibling elements though (uses <span>s by default, example below overrides the rendering to use <div>s so your buttons stack each on its own line).
new CompositeCell<AdminModel>(Arrays.asList(
// First button
new HasCell<AdminModel, String>() {
#Override public Cell<String> getCell() { return new ButtonCell(); }
#Override public FieldUpdated<AdminModel, String> getFieldUpdater() {
return new FieldUpdater<AdminModel, String>() {
#Override public void update(int index, AdminModel object, String value) {
Window.alert("Edit " + object.getId());
}
};
}
#Override public String getValue(AdminModel o) {
return "Edit";
}
},
// Second button
new HasCell<AdminModel, String>() {
#Override public Cell<String> getCell() { return new ButtonCell(); }
#Override public FieldUpdated<AdminModel, String> getFieldUpdater() {
return new FieldUpdater<AdminModel, String>() {
#Override public void update(int index, AdminModel object, String value) {
Window.alert("Delete " + object.getId());
}
};
}
#Override public String getValue(AdminModel o) {
return "Delete";
}
}) {
#Override protected <X> void render(Cell.Context context, AdminModel value, SafeHtmlBuilder sb, HasCell<String,X> hasCell) {
// use a <div> instead of the default <span>
Cell<X> cell = hasCell.getCell();
sb.appendHtmlConstant("<div>");
cell.render(context, hasCell.getValue(value), sb);
sb.appendHtmlConstant("</div>");
}
};
(note: in your case, because the button's text doesn't depend on the row object, maybe you should rather use an ActionCell; it would better fit "semantically" with what you're doing, but otherwise it's almost the same; with an ActionCell, you'd use HasCell<AdminModel, AdminModel>, ActionCell<AdminModel>, getFieldUpdater would return null, and thegetValueof theHasCellwould just return theAdminModel` argument as-is).
Otherwise, implement your Cell (or AbstractCell) entirely by yourself.
Ideally, a column should have only one type of cell be it ImageCell, ButtonCell etc. Because all this ImageCell and ButtonCell does not provide any in-built events. The events are handled by FieldUpdater itself which does not have differentiators to identify that which ButtonCell is clicked. Ideally on click of that column, the field-updater will be called.
You should rather create your own composite widget which extends HasCell. This composite widget will have two different buttons and those in built methods are called on click of respective button.
public void onModuleLoad() {
CellTable<Person> table = new CellTable<Person>();
List<HasCell<Person, ?>> cells = new LinkedList<HasCell<Person, ?>>();
cells.add(new ActionHasCell("Edit", new Delegate<Person>() {
#Override
public void execute(Person object) {
// EDIT CODE
}
}));
cells.add(new ActionHasCell("Delete", new Delegate<Person>() {
#Override
public void execute(Person object) {
// DELETE CODE
}
}));
CompositeCell<Person> cell = new CompositeCell<Person>(cells);
table.addColumn(new TextColumn<Person>() {
#Override
public String getValue(Person object) {
return object.getName()
}
}, "Name");
// ADD Cells for Age and Address
table.addColumn(new Column<Person, Person>(cell) {
#Override
public Person getValue(Person object) {
return object;
}
}, "Actions");
}
private class ActionHasCell implements HasCell<Person, Person> {
private ActionCell<Person> cell;
public ActionHasCell(String text, Delegate<Person> delegate) {
cell = new ActionCell<Person>(text, delegate);
}
#Override
public Cell<Person> getCell() {
return cell;
}
#Override
public FieldUpdater<Person, Person> getFieldUpdater() {
return null;
}
#Override
public Person getValue(Person object) {
return object;
}
}
Also, see the link below.
[GWT CellTable-Need to have two buttons in last single cell of each row

Android action bar search not working

I want to use my getfilter() i implemented but from action bar in order to search my listview . But dont know why the app keeps on giving nullpointer i cant understand the error as well .
Here's my code calling my custom getfilter implented inside my coustom adapter.
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
ListView itcItems;
DataBaseHandler db;
private SearchView mSearchView;
//private EditText mStatusView;
public DummySectionFragment() {
}
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
//MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.option_menu, menu);
//getMenuInflater().inflate(R.menu.action, menu);
searchView = (SearchView) menu.findItem(R.id.Search).getActionView();
SearchManager searchManager = (SearchManager) getActivity().getSystemService(Context.SEARCH_SERVICE);
searchView.setSearchableInfo(searchManager.getSearchableInfo(getActivity().getComponentName()));
searchView.setIconifiedByDefault(false);
SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener()
{
#Override
public boolean onQueryTextChange(String newText)
{
// this is your adapter that will be filtered
adapter.getFilter().filter(newText);
return true;
}
#Override
public boolean onQueryTextSubmit(String query)
{
// this is your adapter that will be filtered
adapter.getFilter().filter(query);
return true;
}
};
searchView.setOnQueryTextListener(queryTextListener);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
setHasOptionsMenu(true);
View rootView = inflater.inflate(R.layout.common_listview,
container, false);
setHasOptionsMenu(true);
ActionBar actionbar = getActivity().getActionBar();
getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
actionbar.show();
//getActivity().requestWindowFeature(Window.FEATURE_ACTION_BAR);
//mStatusView = (EditText) rootView.findViewById(R.id.status_text);
itcItems = (ListView) rootView.findViewById(R.id.streamList);
/*MyAsyncTask task = new MyAsyncTask(getActivity());
task.execute("http://findaway.in/card/restlist.xml");
*
*/
db = new DataBaseHandler(getActivity());
if(isOnline(getActivity()))
{
flag=1;
db.delete();
getDataInAsyncTask();
getImage(db);
//db.close();
}
else
{
flag=0;
Toast.makeText(getActivity(), "No internet",
Toast.LENGTH_LONG).show();
try {
db.openDataBase();
} catch (SQLException sqle) {
throw sqle;
}
getDataInDataBase(db);
}
here's my logcat
line 212 is searchView = (SearchView) menu.findItem(R.id.Search).getActionView();
also is it compulsory to implement res/xml/searchable.xml ?? i havnt done that
In onCreateOptionsMenu(), call to super is missing. Consider using super and then using inflater and menu objects.

Eclipse DisplayMessageActivity error

I have a question about an error I get in Eclipse.
Eclipse says "The nested type DisplayMessageActivity cannot hide an enclosing type"
This is my script:
package com.example.warzonegaming;
public class DisplayMessageActivity {
public class DisplayMessageActivity extends Activity {
#SuppressLint("NewApi")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the message from the intent
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
// Set the text view as the activity layout
setContentView(textView);
// Make sure we're running on Honeycomb or higher to use ActionBar APIs
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
// Show the Up button in the action bar.
getActionBar().setDisplayHomeAsUpEnabled(true);
}
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
}
}
Does someone knows an fix for this, because I can't go further now.
Regards
Try learn basics of javapackage com.example.warzonegaming;
public class DisplayMessageActivity extends Activity {
#SuppressLint("NewApi")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the message from the intent
Intent intent = getIntent();
String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
// Create the text view
TextView textView = new TextView(this);
textView.setTextSize(40);
textView.setText(message);
// Set the text view as the activity layout
setContentView(textView);
// Make sure we're running on Honeycomb or higher to use ActionBar APIs
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
// Show the Up button in the action bar.
getActionBar().setDisplayHomeAsUpEnabled(true);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
}

Refresh Listview in android

I"m tring it refresh my listview when my sqllite database is change (when delete or update query).
the querys itself works just fine, but it doesn't update the listview layout, only when i"m exiting the acitvity and renter it the liseview is changing.
I tried the methodes:
notifyDataSetChanged()
requery()
the code of the activiy is:
public class ShowListActivity extends ListActivity {
private ItemsDataSource itemsDataSource;
private String source[] = new String[] {MySQLiteHelper.KEY_NAME, MySQLiteHelper.KEY_QUANTITY, MySQLiteHelper.KEY_CHECKED};
private int dest[] = new int[] {R.id.itemTitle, R.id.itemQuantity, R.id.itemCheck};
public void goBackMethod(View view) {
Intent intent = new Intent(this, MainScreen.class);
startActivity(intent);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
setContentView(R.layout.activity_show_list);
} catch (Exception e) {
e.getMessage();
}
ApplicationController applicationController = (ApplicationController)getApplicationContext();
itemsDataSource = applicationController.itemsDataSource;
final Cursor mCursor = itemsDataSource.getAllItems();
startManagingCursor(mCursor);
CustomCursorAdapter adapter = new CustomCursorAdapter(this, mCursor);
adapter.notifyDataSetChanged();
setListAdapter(adapter);
ListView listView = getListView();
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
selectAction(id);
}
});
}
private void selectAction(final long position) {
Builder builder = new AlertDialog.Builder(this);
builder.setTitle("בחר פעולה");
builder
.setMessage("בחר בפעולה שברצונך לבצע:");
builder.setPositiveButton("עדכן פריט קניה",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do update
}
});
builder.setNeutralButton("מחק פריט קניה",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
itemsDataSource.deleteItem(position);
Toast toast = Toast.makeText(getBaseContext(), "הפריט הנבחר נמחק בהצלחה", Toast.LENGTH_SHORT);
toast.show();
}
});
builder.setNegativeButton("חזור לרשימת הקניות",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
}
the code of the customadapter is:
public class CustomCursorAdapter extends CursorAdapter implements Adapter {
private Cursor mCursor;
private Context mContext;
private final LayoutInflater mInflater;
public CustomCursorAdapter(Context context, Cursor c) {
super(context, c);
mInflater=LayoutInflater.from(context);
mContext=context;
}
#Override
public void bindView(View view, Context context, Cursor cursor) {
TextView itemTitle= (TextView)view.findViewById(R.id.itemTitle);
itemTitle.setText(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)));
TextView itemQuantity = (TextView)view.findViewById(R.id.itemQuantity);
itemQuantity.setText(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_QUANTITY)));
CheckBox itemCheck = (CheckBox) view.findViewById(R.id.itemCheck);
itemCheck.setChecked(cursor.getInt(cursor.getColumnIndex(MySQLiteHelper.KEY_CHECKED))==1);
}
#Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
final View view=mInflater.inflate(R.layout.listview_item_row, parent, false);
TextView itemTitle= (TextView)view.findViewById(R.id.itemTitle);
itemTitle.setText(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)));
TextView itemQuantity = (TextView)view.findViewById(R.id.itemQuantity);
itemQuantity.setText(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_QUANTITY)));
CheckBox itemCheck = (CheckBox) view.findViewById(R.id.itemCheck);
itemCheck.setChecked(cursor.getInt(cursor.getColumnIndex(MySQLiteHelper.KEY_CHECKED))==1);
return view;
}
}
in your code you have not added your adapter class. I am sure that you will be adding the data in list view from an array list.
So in the time of updating the list view by adding or removing a data to the list view, first either add or remove the data from your array list and the call as follows
listView.invalidateViews();
then call your set Adapter method