I want to set the dynamic value for the spinner as its initial value..
If i set that dynamic value then, it doesn't allow me to change to another value..
The dynamic Value of spinner is "AMEX" if i want to change my value as "Discover" that is in Array value i cant ,
so pls give me solution here is my code..
spin_type = (Spinner) findViewById(R.id.Spinner_type);
adapter_type = new ArrayAdapter(Credit_Card_Main.this,android.R.layout.simple_spinner_item, array_type);
adapter_type.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spin_type.setAdapter(adapter_type);
spin_type.setOnItemSelectedListener(new OnItemSelectedListener(){
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
spin_type.setSelection(adapter_type.getPosition(Signin.VALUE_type[selected_position]));
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
Thanks
Venkatesh
you can set initial value for spinner by spinner.setPrompt();method .so just set yor dynamic value by that
spin_type.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
// TODO Auto-generated method stub
for (int i = 0; i < array_type.length; i++) {
if (test_flag_type == false) {
if (array_type[i].toString().equalsIgnoreCase(Credit_Card_List.VALUE_type[Credit_Card_List.selectCard])) {
spin_type.setSelection(adapter_type.getPosition(Credit_Card_List.VALUE_type[Credit_Card_List.selectCard]));
test_flag_type = true;
}
}
}
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
where array_type contains list of credit card names.
I get the first value in array_type[i] here i=0,convert it to the string then compares it with the values i get from Database (i.e) Value_type..
If same it will goes inside if loop and set the value in the position at "i"..
If once value set i change the test_flag_tyype to true so next time it will not go inside the loop since test_flag_type is true..
This is the way i make it to work..
Related
I have three edittext values for which i am using textwatcher to update data.
I want that if i enter any value in anyone of the edit text then according to that value it should calculate and then update the edittext in which i entered the value automatically and after that set the value in other specif edit text and save the final value in string if need to send to any server.
//My Code
public class Land_details extends AppCompatActivity {
EditText land_acre_edit;
EditText land_kanal_edit;
EditText land_marla_edit;
Button land_button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_land_details);
land_acre_edit = findViewById(R.id.land_acre_edit);
land_kanal_edit = findViewById(R.id.land_kanal_edit);
land_marla_edit = findViewById(R.id.land_marla_edit);
land_button = findViewById(R.id.save_land_detail);
land_acre_edit.addTextChangedListener(mytext_watcher);
land_marla_edit.addTextChangedListener(mytext_watcher);
land_kanal_edit.addTextChangedListener(mytext_watcher);
}
private TextWatcher mytext_watcher = new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
try {
String check_marla = land_marla_edit.getText().toString();
String check_kanal = land_kanal_edit.getText().toString();
String check_acre = land_acre_edit.getText().toString();
if (check_marla != null) {
if ((Integer.valueOf(check_marla) > 8)) {
check_acre =(String.valueOf(Integer.valueOf(check_kanal) + (Integer.valueOf(land_marla) / 20)));
check_marla=( String.valueOf(Integer.valueOf(land_marla) % 20));
check_acre = String.valueOf(check_acre) + (Integer.valueOf(check_kanal) / 8);
check_kanal = String.valueOf(Integer.valueOf(check_kanal) % 8);
land_marla_edit.setText(check_marla);
land_kanal_edit.setText(check_kanal);
land_acre_edit.setText(check_acre);
}}
}catch (NumberFormatException e){
}
}
#Override
public void afterTextChanged(Editable s) {
}
};
I have tried to set my try catch code in aftertextChanged but at first it was giving me numberformatexception as soon as i enter a text above my contion my app crash but after that i tried using try catch to catch a numberformatexception after that i am able to add number above my condition and even after a long wait nothing happen can any one explain where i am going wrong.
I am trying to create an ObservableList() to use with my Tableview. The StringData type is a class containing two SimpleStringProperty var. I want to create this list and bind each variable to an specific position of a List. Something like this:
public class DownloadService implements Runnable {
//List that will be updated
public List<SimpleStringProperty> dList = new ArrayList<SimpleStringProperty>();
public class MainScreenController implements Initializable {
//List that populates TV
private ObservableList<DataString> data = FXCollections.observableArrayList();
//tableview
#FXML
private TableView<DataString> tbl_table;
DownloadService download;
...}
public class DataString{
public final SimpleStringProperty state;
public final SimpleStringProperty sinc;
public SimpleStringProperty stateProperty() {
return state;
}
public void setState(String status) {
state.set(status);
}
public SimpleStringProperty sincProperty() {
return sinc;
}
public void setSinc(String sinc) {
this.sinc.set(sinc);
}
}
On MainScreenController I try to do this:
DataString s = new DataString();
s.state.bind (download.dList.get(data.size()));
s.sinc.bind (download.dList.get(data.size()));
data.add(s);
tbl_table.setItems(data);
However, I cannot update the content of data when I update the list on DownloadService. I believe it should update the value of the column associated with the state and sinc variable everytime DownloadService updated the content of the list in each position. I am doing something wrong or is there another way to bind a StringProperty to a position on the list?
Thanks!
You are binding to the specific object inside the list, not to the position. If using SimpleStringProperty in dList isn't strict requirement, than you can use Bindings.stringValueAt():
StringBinding binding = Bindings.stringValueAt(dList, index);
s.state.bind(binding);
If you really need SimpleStringProperty, you can implement custom StringBinding, something like this:
class CustomStringBinding extends StringBinding {
private ObservableList<SimpleStringProperty> op;
private int index;
public CustomStringBinding(ObservableList<SimpleStringProperty> list, int index) {
this.op = list;
this.index = index;
super.bind(op, op.get(index));
}
#Override
public void dispose() {
super.unbind(op, op.get(index));
}
#Override
protected String computeValue() {
try {
return op.get(index).get();
} catch (IndexOutOfBoundsException ex) {
// log
}
return null;
}
#Override
public ObservableList<?> getDependencies() {
return FXCollections.singletonObservableList(op);
}
}
I'm trying to get the value of a switch (on/off) and tell the data to another class.
I'm not using a switch statement, I have a physical switch which the user can check or uncheck.
I need to get the value of this switch in order to use the data in another class.
Here's what I've tried to use:
Switch vibeBlocker = (Switch) findViewById(R.id.hideVibeSwitch);
#Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
Boolean vibeHider = Boolean.valueOf(vibeBlocker);
}
I receive an error on the line Boolean vibeHider = Boolean.valueOf(vibeBlocker);. I'm not sure how to get the value of my switch and convert it to a boolean. I know I can use methods like .toString(); and such, but is there something similar for booleans?
I need to transfer the value of the switch between two classes, and I think this will work. If anyone knows the correct statement here, or a better way to do this, please let me know.
Thanks!
Nathan
I was declaring the Switch and finding it by Id, which didn't work for me. Instead, I had to use a SharedPreferenceManager to put the boolean into my bundle:
#Override
public void onSaveInstanceState(#NonNull Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
SharedPreferences mSharedPreferencesManager = PreferenceManager.getDefaultSharedPreferences(this);
vibeBlock = mSharedPreferencesManager.getBoolean("vibration_checkbox", false);
savedInstanceState.putBoolean("myBoolean", vibeBlock);
}
That worked to put the boolean into the bundle. Here's how I pulled it out in the MainActivity:
#Override
public void onRestoreInstanceState(#NonNull Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
hideVibe = savedInstanceState.getBoolean("myBoolean");
}
I also added this:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate();
(Creation code)
SharedPreferences mSharedPreferencesManager = PreferenceManager.getDefaultSharedPreferences(this);
hideVibe = mSharedPreferencesManager.getBoolean("vibration_checkbox", false);
if (hideVibe) {
switchConv.setVisibility(View.GONE);
} else if (!hideVibe) {
switchConv.setVisibility(View.VISIBLE);
}
}
And this as well:
#Override
protected void onResume() {
super.onResume();
SharedPreferences mSharedPreferencesManager = PreferenceManager.getDefaultSharedPreferences(this);
hideVibe = mSharedPreferencesManager.getBoolean("vibration_checkbox", false);
if (hideVibe) {
switchConv.setVisibility(View.GONE);
} else if (!hideVibe) {
switchConv.setVisibility(View.VISIBLE);
}
}
And that did the trick :)
I am learning custom views in android.
I made one custom view, with a rectangle and a text. The code of the custom view is:
public class TileGenerator extends View {
// rectangle parameters
private Rect rect = new Rect();
private Paint rectPaint = new Paint();
private Integer rectEndX;
private Integer rectEndY;
private Integer rectStartX;
private Integer rectStartY;
private Integer rectFillColor;
private Float rectTextStartX;
private Float rectTextStartY;
//rectangle text
private String rectText;
private Paint rectTextPaint = new Paint();
public TileGenerator(Context context) {
super(context);
}
#Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
}
#Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
public void setTileTitleText(String rectText) {
this.rectText = rectText;
}
#Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
rectEndX = getrectEndX();
rectEndY = getrectEndY();
rectStartX = getRectStartX();
rectStartY = getRectStartY();
rectTextStartX = rectEndX/4f + rectStartX;
rectTextStartY = 3.5f * rectEndY/4f + rectStartY;
rectTextPaint.setTextSize(rectEndY/8);
rectTextPaint.setColor(Color.BLACK);
rect.set(rectStartX,rectStartY,rectEndX,rectEndY);
rectPaint.setColor(getRectFillColor());
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawRect(rect, rectPaint);
canvas.drawText(rectText,rectTextStartX,rectTextStartY,rectTextPaint );
}
#Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
}
public Integer getrectEndX() {
return rectEndX;
}
public void setrectEndX(Integer rectEndX) {
this.rectEndX = rectEndX;
}
public Integer getrectEndY() {
return rectEndY;
}
public void setrectEndY(Integer rectEndY) {
this.rectEndY = rectEndY;
}
public Integer getRectStartX() {
return rectStartX;
}
public void setRectStartX(Integer rectStartX) {
this.rectStartX = rectStartX;
}
public Integer getRectStartY() {
return rectStartY;
}
public void setRectStartY(Integer rectStartY) {
this.rectStartY = rectStartY;
}
public Integer getRectFillColor() {
return rectFillColor;
}
public void setRectFillColor(Integer rectFillColor) {
this.rectFillColor = rectFillColor;
}
public String getRectText() {
return rectText;
}
}
After that I created an blank activity. I am doing all with JAVA code. No XML. Then I try to add above custom view to a gridview layout. I want to add two custom views with different text in a horizontal gridview. So far my code is as below:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GridLayout gridLayout = new GridLayout(this);
// first custom view
CustomRectWithText customRectWithText = new CustomRectWithText(this);
customRectWithText.setRectEndX(200);
customRectWithText.setRectEndY(200);
customRectWithText.setRectStartX(2);
customRectWithText.setRectStartY(2);
customRectWithText.setImage(image);
customRectWithText.setRectText("Text");
customRectWithText.setRectFillColor(Color.BLUE);
gridLayout.addView(customRectWithText);
// second custom view
CustomRectWithText customRectWithText1 = new CustomRectWithText(this);
customRectWithText1.setRectEndX(400);
customRectWithText1.setRectEndY(200);
customRectWithText1.setRectStartX(200 + 5);
customRectWithText1.setRectStartY(2);
customRectWithText1.setTileTitleText("Text 1");
customRectWithText1.setRectFillColor(Color.GREEN);
gridLayout.addView(customRectWithText1);
setContentView(gridLayout);
}
But still I am not getting both of the rectangles in a grid view. Only one rectangle is displayed at a time. In above case only first custom view is displayed.
Where am I doing wrong.
All I want is to make a repetitive rectangle of varying labels of any size inside a grid view.
Is this the way to do it. I mean is there any other way around.
I dont want to use ListItems.
Sorry but i do not have enough repo to comment.
But why dont you make an adapter?
Gridview behaves same as listView.
Use adapter to fill your grid.
This is the proper way to populate listView and gridView also.
I'm trying to implement Menu with select box which sets to display or not component. I have this checkbox:
final CheckMenuItem toolbarSubMenuNavigation = new CheckMenuItem("Navigation");
toolbarSubMenuNavigation.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent e)
{
DataTabs.renderTab = toolbarSubMenuNavigation.isSelected();
// call here the getter setter and send boolean flag
System.out.println("subsystem1 #1 Enabled!");
}
});
And I have this tabpane which I want to render only if I have selected the checkbox:
public static boolean renderTab;
public DataTabs()
{
}
public boolean isRenderTab()
{
return renderTab;
}
public void setRenderTab(boolean renderTab)
{
this.renderTab = renderTab;
}
// below this code
tabPane.setVisible(renderTab);
When I run the code it's not working. I also tested this:
DataTabs tabs = new DataTabs(); // instantiate first
tabs.setRenderTab(toolbarSubMenuNavigation.isSelected());
public static boolean renderTab;
TabPane tabPane = new TabPane();
public DataTabs()
{
}
public boolean isRenderTab()
{
return renderTab;
}
public void setRenderTab(boolean renderTab)
{
tabPane.setVisible(renderTab);
}
But again there is no result when I run the code and I check or uncheck the checkbox.
This is the complete source code:
http://pastebin.com/tkj4Fby1
Maybe I need to add listener or something else which I'm missing?
EDIT
Test 3
I also tested this code:
final CheckMenuItem toolbarSubMenuNavigation = new CheckMenuItem("Navigation");
toolbarSubMenuNavigation.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent e)
{
DataTabs.toolbarSubMenuNavigation = toolbarSubMenuNavigation;
// call here the getter setter and send boolean flag
System.out.println("subsystem1 #1 Enabled!");
}
});
// class with tabs
public static CheckMenuItem toolbarSubMenuNavigation;
public static CheckMenuItem getToolbarSubMenuNavigation()
{
return toolbarSubMenuNavigation;
}
public static void setToolbarSubMenuNavigation(CheckMenuItem toolbarSubMenuNavigation)
{
DataTabs.toolbarSubMenuNavigation = toolbarSubMenuNavigation;
}
// below
abPane.visibleProperty().bind(toolbarSubMenuNavigation.selectedProperty());
I get NPE when I run the code.
You can easely tell to your tab to be visible when you check the box in one line
yourTab.visibleProperty().bind(yourCheckBox.selectedProperty());
And just with this line your tabpane will be visible only when it's checked