Has anyone else had a problem with CheckedTextView showing multiple checked items when only 1 is checked? When a CheckedTexView item is clicked, the response from the OnClickListener is to check the entries before and after the clicked item.
Here's the code:
mFriendDoneButton = (Button) findViewById(R.id.doneAddAFriendButton);
mListView = (ListView)findViewById(R.id.contactList);
populateContactList();
mListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
mListView.setItemsCanFocus(false);
mListView.setOnItemClickListener(
new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view,
int arg2, long arg3) {
int selectedPosition = arg2;
CheckedTextView textView = (CheckedTextView)view.findViewById(R.id.friendEntryText);
String mtext = textView.getText().toString();
Log.i("AddAFriendActivity", "Click on position "+selectedPosition);
Toast t = new Toast(AddAFriendActivity.this);
t = Toast.makeText(AddAFriendActivity.this, "Clicked on " + arg2+mtext+arg3, Toast.LENGTH_LONG);
t.show();
}
});
private void populateContactList() {
// Build adapter with contact entries
Cursor cursor = getContacts();
String[] fields = new String[] {
ContactsContract.Data.DISPLAY_NAME
};
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.friend_entry, cursor, fields, new int[] {R.id.friendEntryText});
mListView.setAdapter(adapter);
}
private Cursor getContacts()
{
// Run query
Uri uri = ContactsContract.Contacts.CONTENT_URI;
String[] projection = new String[] {
ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME
};
String selection = null;
String[] selectionArgs = null;
String sortOrder = null;
return managedQuery(uri, projection, selection, selectionArgs, sortOrder);
}
The XML is as follows:
Found the problem... textView needs to be declared as a field, otherwise the managedQuery results cycle through the onClickListener.
Related
Please see this
This is what I want to see... I mean the tool tip
At run time I get this error message for each row that is being loaded.
The tool tip text lies in the an object and is retrieved by thisRow.getCourseTootip(i);
Number of columns in the table varies and I create them and add them to the table view thru code.
for (int courseNo = 0; courseNo < numberOfCourses; courseNo++) {
String colName = getASemesterCourse(thisSemester, courseNo).getCourseID();
TableColumn<AResultRow, String> thisColumn = new TableColumn<>(colName);
thisColumn.setPrefWidth(80);
thisColumn.setStyle("-fx-alignment: CENTER; font-weight:bold;");
String str = TableRows.get(1).getGrade(courseNo);
final int i = courseNo;
thisColumn.setCellValueFactory(cellData -> cellData.getValue().courseGradeProperty(i));
thisColumn.setCellFactory(new Callback<TableColumn<AResultRow, String>, TableCell<AResultRow, String>>() {
public TableCell<AResultRow, String> call(TableColumn<AResultRow, String> column) {
return new TableCell<AResultRow, String>() {
#Override
protected void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
setText(item);
AResultRow thisRow = new AResultRow();
thisRow = getTableView().getItems().get(getTableRow().getIndex());
final Tooltip tip= new Tooltip();
tip.setText(thisRow.getCourseTootip(i));
setTooltip(tip);
tip.setStyle("-fx-background-color: pink; -fx-text-fill: black; -fx-font: normal normal 12pt \"Times New Roman\"");
}
}
};
}
});
boolean retVal = thisTable.getColumns().addAll(thisColumn);
}
Error is
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
at victoriairene.TheMainFXMLController$1$1.updateItem(TheMainFXMLController.java:434)
at victoriairene.TheMainFXMLController$1$1.updateItem(TheMainFXMLController.java:427)
Line 434 is
thisRow = getTableView().getItems().get(getTableRow().getIndex());
Text for the tool tip for this cell comes from thisRow.getCourseTootip(i).
Can someone tell me, what is wrong with my code? Which object is null ? If it is null, then how do I get to see the correct Tooltip text, in spite of getting error messages for each row ?
I have been struggling with this for one full day.
Please help and thanks in advance.
As requested by Kleopatra I am enclosing the entire Create Table function.
public void createTableForThisSemester(int thisSemester, int numberOfCourses, javafx.collections.ObservableList<AResultRow> TableRows) {
TableView<AResultRow> thisTable = new TableView<>();
thisTable.setContextMenu(contextMenu);
TableColumn<AResultRow, String> tcolRollNo = new TableColumn<>("Roll Number");
tcolRollNo.setEditable(false);
tcolRollNo.setPrefWidth(120);
TableColumn<AResultRow, String> tcolName = new TableColumn<>("Student Name");
tcolName.setEditable(false);
tcolName.setPrefWidth(350);
tcolRollNo.setCellValueFactory(cellData -> cellData.getValue().StudentIDProperty());
tcolName.setCellValueFactory(cellData -> cellData.getValue().StudentNameProperty());
boolean xyz = thisTable.getColumns().addAll(tcolRollNo, tcolName);
// TableColumn[] courseColumn = new TableColumn[numberOfCourses];
for (int courseNo = 0; courseNo < numberOfCourses; courseNo++) {
String colName = getASemesterCourse(thisSemester, courseNo).getCourseID();
TableColumn<AResultRow, String> thisColumn = new TableColumn<>(colName);
thisColumn.setPrefWidth(80);
thisColumn.setStyle("-fx-alignment: CENTER; font-weight:bold;");
String str = TableRows.get(1).getGrade(courseNo);
final int i = courseNo;
thisColumn.setCellValueFactory(cellData -> cellData.getValue().courseGradeProperty(i));
thisColumn.setCellFactory(new Callback<TableColumn<AResultRow, String>, TableCell<AResultRow, String>>() {
public TableCell<AResultRow, String> call(TableColumn<AResultRow, String> column) {
return new TableCell<AResultRow, String>() {
#Override
protected void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
setText(item);
AResultRow thisRow = new AResultRow();
thisRow = getTableView().getItems().get(getTableRow().getIndex());
final Tooltip tip= new Tooltip();
tip.setText(thisRow.getCourseTootip(i));
setTooltip(tip);
tip.setStyle("-fx-background-color: pink; -fx-text-fill: black; -fx-font: normal normal 12pt \"Times New Roman\"");
}
}
};
}
});
boolean retVal = thisTable.getColumns().addAll(thisColumn);
}
// System.out.println("# of Rows in Table [" + thisSemester + "] = " + TableRows.size());
TableColumn<AResultRow, String> tcolGPA = new TableColumn<>("GPA");
tcolGPA.setEditable(false);
tcolGPA.setPrefWidth(80);
tcolGPA.setStyle("-fx-alignment: CENTER; font-weight:bold;");
tcolGPA.setCellValueFactory(cellData -> cellData.getValue().returnStringGPA());
boolean retVal = thisTable.getColumns().addAll(tcolGPA);
thisTable.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
thisTable.setItems(TableRows);
thisTable.getSelectionModel().selectedItemProperty().addListener((observableValue, oldValue, newValue) -> {
//Check whether item is selected and set value of selected item to Label
if (thisTable.getSelectionModel().getSelectedItem() == null) {
gRollNumber = null;
gStudentName = null;
} else {
gRollNumber = newValue.getStudentID();
gStudentName = newValue.getStudentName();
}
});
ScrollPane thisScrollPane = new ScrollPane();
thisScrollPane.setFitToWidth(true);
thisScrollPane.setFitToHeight(true);
thisScrollPane.setMinHeight((theDetails.getHeight() - 25));
thisScrollPane.setMaxHeight((theDetails.getHeight() - 25));
thisScrollPane.setMinWidth((theDetails.getWidth() - 25));
thisScrollPane.setHbarPolicy(ScrollPane.ScrollBarPolicy.ALWAYS);
Tab thisTab = tabs.getTabs().get(thisSemester);
thisTab.setContent(thisScrollPane);
thisScrollPane.setContent(thisTable);
}
I am repeating the hierarchy again - please excuse.
Table view is associated with an observablelist named ATableRows which a class ATableRow.
ATableRow contains several members and one of them is an array of class ACourseResult.
I need to know the ROW number and the array index (which is actually the Table Column number for that Cell) before I can retrieve the text for the tooltip.
Thing is the code works... except for the runtime error of null pointer. I still do not understand what the CellFactory and CellValueFactories do. Sorry about that. Oracle's documents do not say what they do......
While I am at this.... I want to tell you that my TABLE is READ ONLY. Do I Have to use the Observable List ? Can't I do this by setting values directly to each cell (just a curiosity).
Thanks in advance and sorry if my questions seem dumber.
Thanks to JAMES my problem is solved.... I am enclosing the modified code for others.
for (int courseNo = 0; courseNo < numberOfCourses; courseNo++) {
String colName = getASemesterCourse(thisSemester, courseNo).getCourseID();
TableColumn<AResultRow, String> thisColumn = new TableColumn<>(colName);
thisColumn.setPrefWidth(80);
thisColumn.setStyle("-fx-alignment: CENTER; font-weight:bold;");
String str = TableRows.get(1).getGrade(courseNo);
final int i = courseNo;
thisColumn.setCellValueFactory(cellData -> cellData.getValue().courseGradeProperty(i));
thisColumn.setCellFactory(new Callback<TableColumn<AResultRow, String>, TableCell<AResultRow, String>>() {
public TableCell<AResultRow, String> call(TableColumn<AResultRow, String> column) {
return new TableCell<AResultRow, String>() {
#Override
protected void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
setText(item);
AResultRow thisRow = new AResultRow();
final int k = this.getIndex(); **// These are the changes suggested by James**
thisRow = getTableView().getItems().get(k); ***// These are the changes suggested by James***
// thisRow = getTableView().getItems().get(getTableRow().getIndex()); <- this is the old code commented out.
final Tooltip tip= new Tooltip();
tip.setText(thisRow.getCourseTootip(i));
setTooltip(tip);
tip.setStyle("-fx-background-color: pink; -fx-text-fill: black; -fx-font: normal normal 12pt \"Times New Roman\"");
}
}
};
}
});
boolean retVal = thisTable.getColumns().addAll(thisColumn);
}
The quick, and wrong, answer to the question is to point out that TableCell has a getTableRow() method, that will give you the row data without having to look it up through the underlying data via the row index.
Technically, you should give the TableCell all of the information it needs to work independently when its updateItem() method is called. This would mean restructing the data model such that the table cell is given a structure with both the displayed contents of the cell, and the text to go in the tooltip. It would appear that the AResultRow data structure has two associated lists, one with whatever shows in the cell, and the other with whatever goes into the tooltip. My suggestion would be to refactor that so that it's a single list holding objects which contain both data elements. Once you do that, the rest of the table structure becomes trivial. Here's a working example:
public class SampleTable extends Application {
private BorderPane testPane;
class TestPane extends BorderPane {
public TestPane(List<DataModel> dataItems) {
TableView<DataModel> tableView = new TableView<DataModel>();
setCenter(tableView);
TableColumn<DataModel, ClassInfo> column1 = new TableColumn<DataModel, ClassInfo>("column 1");
TableColumn<DataModel, ClassInfo> column2 = new TableColumn<DataModel, ClassInfo>("column 2");
column1.setCellValueFactory(new PropertyValueFactory<DataModel, ClassInfo>("column1Data"));
column2.setCellValueFactory(new PropertyValueFactory<DataModel, ClassInfo>("column2Data"));
column1.setCellFactory(column -> new CustomTableCell());
column2.setCellFactory(column -> new CustomTableCell());
tableView.getColumns().addAll(column1, column2);
tableView.setItems(FXCollections.observableList(dataItems));
}
}
public static void main(String[] args) {
launch(args);
}
public class CustomTableCell extends TableCell<DataModel, ClassInfo> {
#Override
protected void updateItem(ClassInfo item, boolean empty) {
super.updateItem(item, empty);
if (!empty) {
if (item != null) {
setText(item.getName());
setTooltip(new Tooltip(item.getDescription()));
}
}
}
}
#Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Task Progress Tester");
List<DataModel> dataItems = new ArrayList<DataModel>();
DataModel row1Data = new DataModel();
row1Data.setColumn1Data(new ClassInfo("row1Col1Name", "This is the description for Row1, Column 1"));
row1Data.setColumn2Data(new ClassInfo("row1Col2Name", "This is the description for Row1, Column 2"));
dataItems.add(row1Data);
DataModel row2Data = new DataModel();
row2Data.setColumn1Data(new ClassInfo("row2Col1Name", "This is the description for Row2, Column 1"));
row2Data.setColumn2Data(new ClassInfo("row2Col2Name", "This is the description for Row2, Column 2"));
dataItems.add(row2Data);
testPane = new TestPane(dataItems);
primaryStage.setScene(new Scene(testPane, 300, 250));
primaryStage.show();
}
public class DataModel {
private ObjectProperty<ClassInfo> column1Data = new SimpleObjectProperty<ClassInfo>();
private ObjectProperty<ClassInfo> column2Data = new SimpleObjectProperty<ClassInfo>();
public void setColumn2Data(ClassInfo newValue) {
column2Data.set(newValue);
}
public void setColumn1Data(ClassInfo newValue) {
column1Data.set(newValue);
}
public ObjectProperty<ClassInfo> column1DataProperty() {
return column1Data;
}
}
public class ClassInfo {
private String name;
private String description;
public ClassInfo(String name, String description) {
this.setName(name);
this.setDescription(description);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
}
}
The code below creates 2 tabs.
Each tab has a grid with 1 column.
In the first tab the table header displays the dropdown with hide/show columns and sort.
In the second tab the dropdown is missing from the table header.
What am I doing wrong?
Thanks
public void onModuleLoad()
{
Grid table1 = createTable();
Grid table2 = createTable();
TabPanel tabPanel = new TabPanel();
tabPanel.add(table1, "Grid 1");
tabPanel.add(table2, "Grid 2");
RootLayoutPanel.get().add(tabPanel);
}
Grid createTable()
{
ColumnConfig<HashMap, String> nameCol = new ColumnConfig<HashMap, String>(
new ValueProvider<HashMap, String>()
{
#Override
public String getValue(HashMap object)
{
return (String) object.get("COL1");
}
#Override
public void setValue(HashMap object, String value)
{
object.put("COL1", value);
}
#Override
public String getPath()
{
// TODO Auto-generated method stub
return "1";
}
}, 200, SafeHtmlUtils.fromTrustedString("<b>Column 1</b>"));
List<ColumnConfig<HashMap, ?>> l = new ArrayList<ColumnConfig<HashMap, ?>>();
l.add(nameCol);
ColumnModel<HashMap> cm = new ColumnModel<HashMap>(l);
ModelKeyProvider<HashMap> modelKeyProvider = new ModelKeyProvider<HashMap>()
{
#Override
public String getKey(HashMap item)
{
return (String) item.get("COL1");
}
};
ListStore<HashMap> store = new ListStore<HashMap>(modelKeyProvider);
store.addAll(getStocks());
Grid table = new Grid(store, cm);
return table;
}
public static List<HashMap> getStocks()
{
List<HashMap> stocks = new ArrayList<HashMap>();
for (int i = 0; i < 1000; i++)
{
HashMap hashMap = new HashMap();
hashMap.put("COL1", "Line: " + i);
stocks.add(hashMap);
}
return stocks;
}
Looks like that the little button with the dropdown has 0 height. It must be because it's inside a tab that is not visible.
Refreshing the header solves this.
TabPanel tabPanel = new TabPanel();
tabPanel.addSelectionHandler(new SelectionHandler<Widget>()
{
#Override
public void onSelection(SelectionEvent<Widget> event)
{
if(table1.getView() != null && table1.getView().getHeader() != null)
table1.getView().getHeader().refresh();
}
});
In this picture, as you can see there are the red deletion buttons, how do I create a hover tooltip for these buttons? Is it the same as setShowHover(true)?
Code:
HoverCustomizer customGroupTooltips = new HoverCustomizer()
{
#Override
public String hoverHTML(Object value, ListGridRecord record, int rowNum, int colNum) {
if (colNum == 1)
{
return "tooltip message";
}
else if (colNum == 2)
{
return "delete";
}
return null;
}
};
ListGridField name = new ListGridField(FIELD_NAME);
ListGridField exportField = new IconField(FIELD_EXPORT, ICON.jpg, EXPORT_CUSTOM);
exportField.setShowHover(true);
exportField.setHoverCustomizer(customGroupTooltips.hoverHTML()); //how do i make sure it is colNum 1 message here?
Yes you can do it by using setHoverCustomizer() method on ListGridField.
Here is the code:
ListGrid grid = new ListGrid();
grid.setCanHover(true);
grid.setShowHover(true);
...
grid.setCanRemoveRecords(true);
ListGridField ls = new ListGridField();
grid.setRemoveFieldProperties(ls);
ls.setHoverCustomizer(new HoverCustomizer() {
#Override
public String hoverHTML(Object value, ListGridRecord record, int rowNum, int colNum) {
return "click here to delete this record";
}
});
I have some question regarding Android programming. More specific, I have a ListView where every single row is containg five widgets and each trigger event. I have created custom adapter and defined events handler for every widgets in the getView method. Everything works fine, however the code looks quite long, unreadable and nasty because of all these event handlers inside. Is there any better design? Maybe Creating event handlers outside the getView method or something else?
greetings
According to suggestion I posted part of the source code. As you can see I have created few event handlers outside the getView method and two inside. I really do not know which design is better.
public class ListViewAdapter extends ArrayAdapter<HourReport> {
private static Activity context;
private int resourcecId;
private TextView fromTime;
private TextView toTime;
private TextView total;
private HourReport rowModelBean;
private HourReport rowBean;
private CheckBox billable;
private ArrayList<HourReport> list;
private HourReportCatalog catalog;
private Map<Integer, Integer>selectedItems;
private Map<Integer, Integer>selectedRoles;
public ListViewAdapter(Activity context, int resourcecId,
ArrayList<HourReport> list, HourReportCatalog catalog) {
super(context, resourcecId, list);
this.catalog = catalog;
ListViewAdapter.context = context;
this.resourcecId = resourcecId;
this.list = list;
selectedItems = new HashMap<Integer, Integer>();
selectedRoles = new HashMap<Integer, Integer>();
}
// event handler for delete button "-"
private OnClickListener delete = new OnClickListener() {
#Override
public void onClick(View deletBtnF) {
int myPosition = (Integer) deletBtnF.getTag();
HourReport r = list.remove(myPosition);
selectedItems.put(myPosition, 0);
selectedRoles.put(myPosition, 0);
r.setTimeFinished(null);
r.setTimeStarted(null);
r.setTaks(null);
r.setTotal(0.0);
r.setBillable(false);
r.setEngagementContractID(0);
list.add(myPosition, r);
notifyDataSetChanged();
if (r.getDateCreated() != null) {
Log.e("Listview adapter", "inside the if statement");
Long id = r.getHourReportID();
Log.e("", "date created" + r.getDateCreated());
catalog.deleteHourReport(r);
r.setDateCreated(null);
}
}
};
// event handler for textView which is responsible for defining dateFrom
Calendar c = Calendar.getInstance();
OnClickListener onClickLisOnDateFrom = new OnClickListener() {
#Override
public void onClick(View editField) {
Integer position1 = (Integer) editField.getTag();
TableRow parent = (TableRow) editField.getParent();
fromTime = (TextView) parent.findViewById(R.id.viewTextFrom);
total = (TextView) parent.findViewById(R.id.textViewShowsTotal);
rowBean = getModel(position1);
TimePickerDialog.OnTimeSetListener timeListener1 = new TimePickerDialog.OnTimeSetListener() {
#Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
c.set(Calendar.HOUR_OF_DAY, hourOfDay);
c.set(Calendar.MINUTE, minute);
int hour = c.get(Calendar.HOUR_OF_DAY);
int minutes = c.get(Calendar.MINUTE);
String time = hour + ":" + minutes;
fromTime.setText(time);
setTimeFieldFrom(time);
String totalTime = totalHourCalculator();
total.setText(totalTime);
}
};
new TimePickerDialog(context, timeListener1,
c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), true)
.show();
}
};
// event handler for textView which is responsible for defining dateTo
private OnClickListener onClickLisOnDateTo = new OnClickListener() {
#Override
public void onClick(View editField) {
Integer position1 = (Integer) editField.getTag();
Log.e("ListView - Timer ", "position: " + position1);
TableRow parent = (TableRow) editField.getParent();
toTime = (TextView) parent.findViewById(R.id.viewTextFrom);
total = (TextView) parent.findViewById(R.id.textViewShowsTotal);
rowBean = getModel(position1);
TimePickerDialog.OnTimeSetListener timeListener2 = new TimePickerDialog.OnTimeSetListener() {
#Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
c.set(Calendar.HOUR_OF_DAY, hourOfDay);
c.set(Calendar.MINUTE, minute);
int hour = c.get(Calendar.HOUR_OF_DAY);
int minutes = c.get(Calendar.MINUTE);
String time = hour + ":" + minutes;
toTime.setText(time);
setTimeFieldTo(time);
String totalTime = totalHourCalculator();
total.setText(totalTime);
}
};
new TimePickerDialog(context, timeListener2,
c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), true)
.show();
}
};
// event handler for check box
private OnClickListener checkBoxListener = new OnClickListener() {
#Override
public void onClick(View checkBox) {
Integer num = (Integer) checkBox.getTag();
rowBean = getModel(num);
if (rowBean.isBillable()) {
rowBean.setBillable(false);
} else {
rowBean.setBillable(true);
}
}
};
#Override
public View getView( int position, View convertView, ViewGroup parent) {
getHourReportList();
TextView deleteBtnV = null;
View row = convertView;
Spinner taskSpinner, roleSpinner;
TextView addReport;
final ViewHolder viewHolder;
if (row == null) {
LayoutInflater layoutInflater = context.getLayoutInflater();
row = layoutInflater.inflate(resourcecId, parent, false);
viewHolder = new ViewHolder(row);
fromTime = viewHolder.getFromTime();
deleteBtnV = viewHolder.getDeleteBtnVView();
deleteBtnV.setOnClickListener(delete);
billable = viewHolder.getCheckBox();
addReport = viewHolder.getAddButtonView();
// event handler for the button "+" which adds extra row
addReport.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Integer myPosition = (Integer) view.getTag();
HourReport report = list.get(myPosition);
HourReport nReport = new HourReport();
nReport.setClaimDate(report.getClaimDate());
nReport.setEmployeeID(report.getEmployeeID());
nReport.setBillable(false);
nReport.setEngagementContractID(0);
list.add(myPosition + 1, nReport);
notifyDataSetChanged();
}
});
viewHolder.adapter = new SpinerAdapter(context);
taskSpinner = viewHolder.getSpinnerTask();
roleSpinner = viewHolder.getSpinnerRole();
//event handler for the spinner
taskSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View spin,
int selected, long arg3) {
Spinner spinner = (Spinner) spin.getParent();
Integer myPosition = (Integer) spinner.getTag();
viewHolder.adapter.setSelected(selected);
String task = viewHolder.adapter.getSelectcetdTask();
long engmId = viewHolder.adapter.getSelectedTaskID();
rowBean = getModel(myPosition);
rowBean.setTaks(task);
rowBean.setEngagementContractID(engmId);
selectedItems.put(myPosition, selected);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
////event handler for the spinner
roleSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View spin,
int selectedRole, long arg3) {
Spinner spinner = (Spinner) spin.getParent();
Integer myPosition = (Integer) spinner.getTag();
selectedRoles.put(myPosition, selectedRole);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
fromTime = viewHolder.getFromTime();
toTime = viewHolder.getToTime();
fromTime.setOnClickListener(onClickLisOnDateFrom);
toTime.setOnClickListener(onClickLisOnDateTo);
billable.setOnClickListener(checkBoxListener);
row.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) row.getTag();
fromTime = viewHolder.getFromTime();
toTime = viewHolder.getToTime();
taskSpinner = viewHolder.getSpinnerTask();
roleSpinner = viewHolder.getSpinnerRole();
total = viewHolder.getTotal();
billable = viewHolder.getCheckBox();
TextView date = viewHolder.getDate();
deleteBtnV = viewHolder.getDeleteBtnVView();
addReport = viewHolder.getAddButtonView();
}
HourReport model = getModel(position);
Integer selection = 0;
if (selectedItems.get(position) != null) {
selection = selectedItems.get(position);
}
int selectionR = 0;
if (selectedRoles.get(position) != null) {
selectionR = selectedRoles.get(position);
}
viewHolder.getFromTime().setText(
parseDateToString(model.getTimeStarted()));
viewHolder.getToTime().setText(
parseDateToString(model.getTimeFinished()));
viewHolder.getTotal().setText(
convertDoubleTotToStringTot(model.getTotal()));
viewHolder.getDate().setText(
parseDateToStringDDate(model.getClaimDate()));
viewHolder.getCheckBox().setChecked(model.isBillable());
Log.e("", "tag " + selection + " date " + model.getClaimDate());
viewHolder.taskSpinner.setSelection(selection);
viewHolder.roleSpinner.setSelection(selectionR);
fromTime.setTag(Integer.valueOf(position));
toTime.setTag(Integer.valueOf(position));
taskSpinner.setTag(Integer.valueOf(position));
roleSpinner.setTag(Integer.valueOf(position));
billable.setTag(Integer.valueOf(position));
deleteBtnV.setTag(Integer.valueOf(position));
addReport.setTag(Integer.valueOf(position));
return row;
}![here you have screen shoot of single row][1]
Create a single instance of OnClickListener (for example as an inner class) and assign this instance to every widget. If you need to know which row this widget belongs to, you can call setTag("pos", position) on that widget. By doing this you will be able to get position by calling view.getTag("pos") in onClick(View view) method of the listener. Hope this helps.
I need to Drag tableViewer cell value to another tableViewer cell in swt.
I need to remove that value where i dragged and add those value where i dropped in tableViewer i'm able to drag and drop but not able to drop where i want too and not able to remove and add value when i drag and drop in tableviewer. Here is the i have:Thank in advance for help.
public void DragandDrop(){
Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
DragSource source = new DragSource(table_2, DND.DROP_MOVE | DND.DROP_COPY);
source.setTransfer(types);
source.addDragListener(new DragSourceAdapter() {
public void dragSetData(DragSourceEvent event) {
DragSource ds = (DragSource) event.widget;
Table table = (Table) ds.getControl();
TableItem[] selection = table.getSelection();
StringBuffer buff = new StringBuffer();
for (int i = 0, n = selection.length; i < n; i++) {
buff.append(selection[i].getText());
}
event.data = buff.toString();
}
});
DropTarget target = new DropTarget(table_3, DND.DROP_MOVE | DND.DROP_COPY );
target.setTransfer(types);
target.addDropListener(new DropTargetAdapter() {
public void dragEnter(DropTargetEvent event) {
if (event.detail != DND.DROP_DEFAULT) {
event.detail = (event.operations & DND.DROP_COPY) != 0 ? DND.DROP_COPY : DND.DROP_NONE;
}
for (int i = 0, n = event.dataTypes.length; i < n; i++) {
if (TextTransfer.getInstance().isSupportedType(event.dataTypes[i])) {
event.currentDataType = event.dataTypes[i];
}
}
}
public void dragOver(DropTargetEvent event) {
event.feedback = DND.FEEDBACK_SELECT | DND.FEEDBACK_SCROLL;
}
public void drop(DropTargetEvent event) {
if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) {
DropTarget target = (DropTarget) event.widget;
Table table = (Table) target.getControl();
String data = (String) event.data;
TableItem item = new TableItem(table, SWT.NONE);
item.setText(new String[] { data });
// table.redraw();
}
}
});
}
to remove the selected value you can use follows
public void drop(DropTargetEvent event) {
if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) {
DropTarget target = (DropTarget) event.widget;
Table table = (Table) target.getControl();
String data = (String) event.data;
TableItem item = new TableItem(table, SWT.NONE);
item.setText(new String[] { data });
//remove the tableitem you drag
table.remove(table.getSelectionIndex());
}
I was looking for Drag and Drop on TableViewer and found the solutions. Hope everyone understand easily. My case, I created two new Listener class inheritance from DragSourceListener & DropTargetListener. Because I want to use TableViewer functions. You need three things to do.
First save index of source item from void dragStart(DragSourceEvent event),
Seconds set data into event.data and
Then Last found target index from void drop(DropTargetEvent event).
public class TestClass extends TableViewer {
private int sourceIndex;
priavte class DragListener implements DragSourceListener {
private TableViewer viewer;
public ItemDragListener(TableViewer viewer) {
this.viewer = viewer;
}
public void dragStart(DragSourceEvent event) {
sourceIndex = viewer.getTable().getSelectionIndex();
}
public void dragSetData(DragSourceEvent event) {
// save data
ISelection select = viewer.getSelection();
if (select instanceof IStructuredSelection) {
Object item = (Object) ((IStructuredSelection)select).getFirstElement();
// save item to event.data
event.data = .........
}
:
}
private class ItemDropListener implements DropTargetListener {
TableViewer viewer;
public ItemDropListener(TableViewer viewer) {
this.viewer = viewer;
}
public void drop(DropTargetEvent event) {
if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) {
TableItem item = (TableItem)event.item;
int targetIndex= -1;
if (item != null) {
Table table = item.getParent();
targetIndex= table.indexOf(item);
}
String data = (String) event.data;
// add an item
if (targetIndex >= 0)
viewer.insert((Object)data, targetIndex);
else
viewer.add((Object)data);
// remove an item
viewer.getTable().remove(sourceIndex); // Careful, it can be changed after add an item
}
}
public void init() {
Transfer[] transfers = new Transfer[] { TextTransfer.getInstance() };
this.addDragSupport(DND.DROP_COPY | DND.DROP_MOVE, transfers, new ItemDragListener(this));
this.addDropSupport(DND.DROP_COPY | DND.DROP_MOVE, transfers, new ItemDropListener(this));
}
}