i am developing some web service based android application ...i want to show below type table view in my application..how can i do?
dynamic table layout code
for (int i = 0; i < 1; i++) {
final LinearLayout linear = new LinearLayout(
FifthActivity.this);
MainLayout.setWeightSum(1.0f);
TableRow row1 = new TableRow(FifthActivity.this);
row1.setId(1000 + sCount);
TextView text1 = new TextView(FifthActivity.this);
text1.setText(button.getText());
final Button button = new Button(FifthActivity.this);
EditText e = new EditText(FifthActivity.this);
e.setWidth(20);
e.setHeight(20);
button.setText(" X ");
button.setWidth(20);
button.setHeight(20);
button.setId(2000 + sCount);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
MainLayout.removeView(findViewById(v
.getId() - 1000));
}
});
sCount++;
row1.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT, 0, 0.25f));
row1.addView(text1);
row1.addView(e);
row1.addView(button);
MainLayout.addView(row1);
}
ll.addView(MainLayout);
// TODO Auto-generated method stub
here's output
how can i align this table column as view format....pls any one help me....
thank in advance.....
You shouldn't need to call setWeightSum() on your parents.
What is the type of your MainLayout ?
I guess its not a TableLayout since table rows in TableLayout get aligned automatically.
So making your MainLayout a TableLayout should do what you want.
see the TableLayout documentation here.
Related
My app is a list of element names. Clicking one goes to another activity with more details, and an editText and button to change its name. When I go back to the list, I want it to have the new name if updated. My onCreate method has this code which populates it from the database perfectly (ignore the hardcoded size, its just simpler for debugging)
final String DATABASE_NAME = "element_db";
final AppDatabase appDatabase;
appDatabase = Room.databaseBuilder(getApplicationContext(), AppDatabase.class, DATABASE_NAME).build();
ListView list = (ListView)findViewById(R.id.listView);
final String[] element = new String[3];
new Thread(new Runnable() {
#Override
public void run() {
List<Element> elements;
elements = appDatabase.elementDao().fetchElements(); // a dao query "select*from"
int size = elements.size();
for (int i = 0; i < size; i++){
element[i] = elements.get(i).getName();
}
}
}) .start();
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, R.layout.activity_list_view, R.id.textView, element);
list.setAdapter(arrayAdapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent i = new Intent(MainActivity.this, itemdetail.class);
i.putExtra("pos", position);
startActivity(i);
}
});
To achieve an updated list when returning to this screen, I copied the above code into the onRestart method, but now the database does not return anything. If I just set the array that goes into the adapter to {"a", "a", "a"} the list populates fine. Any ideas why the database works onCreate but not onRestart?
I think you can use ViewModel and livedata to observe any database change
In Android App development,I want to create a Linear Vertical layout as my main Screen
. and some 'n' textviews in it , and whenever i click on any of the textviews , it must direct to any of the layouts that I have created . How to do that ?
Well there is listview or recycler view for that. But as per your requirement, and as you mentioned N textviews, I am going to assume you want to create those text views programatically where N is dependant on some other parameter of your application. Here is how you do it:
public class YourActivity extends Activity implements View.OnClickListener{
TextView [] tvs = new TextView[N];
public void onCreate(Bundle savedInstance){
super.onCreate(savedInstance);
LayoutParams lpView = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
LinearLayout rootView = (LinearLayout)findViewById(R.id.your_id_of_ll);
for (int i = 0 ; i < N ; i++){
tvs[i] = new TextView(this); //this or reference to activity
tvs[i].setText("TextView " + i);
tvs[i].setLayoutParams(lpView);
tvs[i].setTag(i);
tvs[i].setOnClickListener(this);
rootView.addView(tvs[i]);
}
}
public void onClick(View v) {
int tag = (int)v.getTag();
System.out.println("TextView with tag " + tag + " Clicked");
}
}
Is there anyway to define the editor type on a cell by cell basis in GXT 3.0?
I need to create a transposed table; the column become the row and the row is the column. That being the case, a column (from a normal table point of view) will have various editor type, whereby a row will have identical editor type.
I am trying to use following approach - It seems to be working fine, and allow to open up editors based on data type but when i click out; it doesn't close/hide editor.
I would really appreciate if someone can please point me in right direction.
final GridInlineEditing<MyModel> editing = new GridInlineEditing<MyModel>(mygrid){
#SuppressWarnings("unchecked")
#Override public <O> Field<O> getEditor(ColumnConfig<MyModel, ?> columnConfig) {
if(valueColumnName.equals(columnConfig.getHeader().asString())) {
MyModel myModel = tree.getSelectionModel().getSelectedItem();
if(MyModelType.STRING.equals(myModel.getMyModelType())) {
TextField textField = new TextField();
textField.setAllowBlank(Boolean.FALSE);
return (Field<O>) textField;
}
else {
TextArea textField = new TextArea();
textField.setAllowBlank(Boolean.FALSE);
return (Field<O>) textField;
}
}
return super.getEditor(columnConfig);
}
};
editing.setClicksToEdit(ClicksToEdit.TWO);
PS:
This is similar to question below; but answer is specific to post GXT 3.0. I am new to stackoverflow and it seems recommendation was to create new question instead of adding new post to old thread.
GXT EditorGrid: choose cell editor type on a cell by cell basis
After playing around all day; my colleague(Praveen) and I figured it out. So instead of trying to override GridInlineEditing's getEditor() method override startEditing() method. Also, you will need converters if you have data like Date, List etc. Below is sample code; hope this help others.
final GridInlineEditing<MyModel> editing = new GridInlineEditing<MyModel>(tree){
#Override public void startEditing(GridCell cell) {
MyModel myModel= tree.getSelectionModel().getSelectedItem();
if(MyModelType.TEXT.equals(myModel.getContextVariableType())) {
TextArea textField = new TextArea();
textField.setAllowBlank(Boolean.FALSE);
super.addEditor(valueColumn, textField);
}
else if(MyModelType.BOOLEAN.equals(myModel.getContextVariableType())) {
SimpleComboBox<String> simpleComboBox = new SimpleComboBox<String>(new StringLabelProvider<String>());
simpleComboBox.setTriggerAction(TriggerAction.ALL);
simpleComboBox.add("YES");
simpleComboBox.add("NO");
super.addEditor(valueColumn, simpleComboBox);
}
else if(MyModel.INTEGER.equals(myModel.getContextVariableType())) {
SpinnerField<Integer> spinnerField = new SpinnerField<Integer>(new IntegerPropertyEditor());
spinnerField.setIncrement(1);
Converter<String, Integer> converter = new Converter<String, Integer>(){
#Override public String convertFieldValue(Integer object) {
String value = "";
if(object != null) {
value = object.toString();
}
return value;
}
#Override public Integer convertModelValue(String object) {
Integer value = 0;
if(object != null && object.trim().length() > 0) {
value = Integer.parseInt(object);
}
return value;
}
};
super.addEditor(valueColumn, converter, (Field)spinnerField);
}
else {
TextField textField = new TextField();
textField.setAllowBlank(Boolean.FALSE);
super.addEditor(valueColumn, textField);
}
super.startEditing(cell);
}
};
editing.setClicksToEdit(ClicksToEdit.TWO);
I think the reason you are not seeing the fields not closing is because you are not actually adding them to the GridInlineEditing class.
In the parts where you have the following return statements;
return (Field<O>) textField;
Those textfields are never added to the grid.
I would try substituting the following code for your first two return statement;
super.addEditor(columnConfig, (Field<O>) textField;
This adds the editor to some maps used by AbstractGridEditing. Specifically, the AbstractGridEditing.removeEditor(GridCell, Field<?>) method, which is used in GridInlineEditing.doCompleteEditing() and GridInlineEditing.cancelEditing() needs the field to be in the map so it can be detached from its parent.
Is there a default view that allows a number textbox, which can be changed by typing in the textbox or by two adjacent knobs by the textbox. So basically, in awesome ASCII graphics:
[<] [textbox] [>]
Basically an increment button, textbox, and decrement button.
Since API level 11, you can now use the NumberPicker;
You can find the documentation here
You can find an example here
My custom solution using EditText and two Button objects:
// This is a textbox group with two knob buttons
LinearLayout boxGroup = new LinearLayout(this);
boxGroup.setOrientation(LinearLayout.HORIZONTAL);
//Stores the current value in the textbox
final int[] value = {0};
// Editable text box
final EditText editText = new EditText(this);
editText.setText("" + value[0]);
// Decrement button
Button decrementButton = new Button(this);
decrementButton.setText("<");
decrementButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
value[0]++;
editText.setText("" + value[0]);
}
});
// Increment button
Button incrementButton = new Button(this);
incrementButton.setText(">");
incrementButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
value[0]--;
editText.setText("" + value[0]);
}
});
boxGroup.addView(decrementButton);
boxGroup.addView(editText);
boxGroup.addView(incrementButton);
I am using LWUIT 1.5 tabs to show notifications. I have three Tabs and I fetch notifications from a php web service. I successfully fetched list of notifications for first Tab. But for next two Tabs I am failing to understand what code I should write to
Detect that second/third Tab is clicked. I know how to add commandListener to a Button. What commandListener is there for Tab selection?
How to refresh content of a Tab when new data is received from the server?
private void showNotificationList() {
try {
Form f = new Form("Notifications");
f.setScrollable(false);
f.setLayout(new BorderLayout());
final List list = new List(getNotifications()); //gets hashtables - notices
list.setRenderer(new GenericListCellRenderer(createGenericRendererContainer(), createGenericRendererContainer()));
list.setSmoothScrolling(true);
//System.out.println("adding list component to listview");
list.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
int i = list.getSelectedIndex();
noticeDetailsForm(notices[i]);
//Dialog. show( "title", notices[i].toString(), "ok", "exitt");
}
});
//Container c2 = new Container(new BoxLayout(BoxLayout.Y_AXIS));
//c2.addComponent(list);
Tabs tabs = new Tabs(Tabs.TOP);
tabs.addTab("Recent", list);
tabs.addTab("Urgent", new Label("urgent goes here"));
tabs.addTab("Favourites", new Label("favs goes here"));
//f.addComponent(tabs);
f.addComponent(BorderLayout.CENTER, tabs);
Command backComm = new Command("Back") {
public void actionPerformed(ActionEvent ev) {
Dashboard.dbInstance.setUpDashboard();
}
};
f.addCommand(backComm);
//System.out.println("showing lsit form");
f.show();
} catch (Exception ex) {
ex.printStackTrace();
}
}
private Container createGenericRendererContainer() throws IOException { //System.out.println("container called");
//System.out.println("container called");
Container c = new Container(new BorderLayout());
c.setUIID("ListRenderer");
Label xname = new Label("");
Label description = new Label();
Label focus = new Label("");
Container cnt = new Container(new BoxLayout(BoxLayout.Y_AXIS));
xname.setName("Name");
xname.getStyle().setBgTransparency(0);
xname.getStyle().setFont(Font.createSystemFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_MEDIUM));
//description.setFocusable(true);
description.setName("Description");
cnt.addComponent(xname);
cnt.addComponent(description);
c.addComponent(BorderLayout.CENTER, cnt);
Button thumb = new Button(Image.createImage("/res/home-work.png"));
//Image img = Image.createImage("/res/home-work.png");
c.addComponent(BorderLayout.WEST, thumb);
return c;
}
private Hashtable[] getNotifications() {
int total = notices.length;
//System.out.println(total);
Hashtable[] data = new Hashtable[total];
//Hashtable[] data = new Hashtable[5];
/data[0] = new Hashtable();
data[0].put("Name", "Shai");
data[0].put("Surname", "Almog");
data[0].put("Selected", Boolean.TRUE);/
for (int i = 0; i < total; i++) {
data[i] = new Hashtable();
//System.out.println(notices[i].getName());
data[i].put("Name", notices[i].getName());
data[i].put("Description", notices[i].getDescription());
data[i].put("Id", Integer.toString(notices[i].getId()));
}
return data;
}
1)I had the same problem and I solved it by overriding Keyreleased of the Form not the Tab
and inside it I check for the component that is focused and if it is the Tab get "tab.selectedIndex" to detect in which Tab I am and load appropriate data .
Here is Sample code(this inside the my derived form that extends Form )
**
public void keyReleased(int keyCode) {
Component p=this.getFocused();
String str= p.getClass().getName();
if(str.toLowerCase().indexOf("radiobutton")!=-1){ // Radiobutton because when u
Here do tab specific work focus on the
tab it returns radiobutton.
lwuit understands tabs as list
of radiobuttons
}**
2)and about refreshing the data I did a solution and I don't Know if its right
I get the new data , create new List and remove the old one and attach the new one then
call Form.repaint();