textfield

问题 I tried this code : in viewWillAppear : NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillDisappear), name: Notification.Name.UIKeyboardWillHide, object: nil) NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillAppear), name: NSNotification.Name.UIKeyboardWillShow, object: nil) and : @objc func keyboardWillAppear(notification:NSNotification) { print("keyboard appear") var info = notification.userInfo let keyBoardSize = info!

问题 I have a problem with my coding right now. I want to have two pickerviews in one view with different data in each picker. So when I click on a textfield a picker would appear with data, and when i click on another textfield the picker appears with different data. I managed to create the picker but the same data appears in each textfield. I have tried to make an action that separates the data of the pickers but I can't manage to get it to work. - (void)viewDidLoad{ dataArray = [[NSMutableArray

问题 import org.jsoup.Jsoup; @SuppressWarnings("unused") public class SimpleWebCrawler extends JFrame implements ActionListener { JTextField yourInputField = new JTextField(20); static JTextArea _resultArea = new JTextArea(200, 200); JScrollPane scrollingArea = new JScrollPane(_resultArea); private final static String newline = "\n"; JButton jButton = new JButton("Send Text"); public SimpleWebCrawler() throws MalformedURLException { yourInputField.addActionListener(new ActionListener()); class

问题 I have created a form that displays values in plain displayfields. There is an "edit" button next to the form and once clicked by the user, the displayfields should switch to being textfields and will, therefore, make the data editable. This, I am guessing, would be achieved by having two identical forms, one editable and one not and one or the other would be visible, based on the user having clicked the button. Another way, perhaps, is to have the xtype dynamically selected upon clicking the

问题 We are trying to get a Rectangle that represents the exact* boundary of the text in a TextField . **Exact as possible.* Take this image: Using my current knowledge, I can retrieve the blue rectangle above like so: var textRect:Rectangle = new Rectangle( field.x, field.y, field.textWidth, field.textHeight ); However, we need to get as close as possible to the red rectangle (I realize there will be minor differences because characters have varied with/height and there will need to be a common

问题 I want to add a TextField with an integrated hint text, a user prompt, a placeholder until the user enters text. The prompt text disappears when the TextField is focused and re-appears if the TextField loses focus and no text is entered. I initially thought that this would be a generic feature for Vaadin TextFields but that doesn't seem to be the case. Now I'm looking for a way to implement my own extension of the TextField to add this feature. But I'm stuck. My question is if anyone here has

问题 I am not sure how to or even if it is possible to select text fields in code. I could not find anything on the subject. If the is indeed a way to do so i have a template that could be modified to demonstrate how this could be done. Here is the template/sample code: Main class: package application; import javafx.application.Application; import javafx.fxml.FXMLLoader; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.stage.Stage; public class Main extends Application { public

问题 How do you rotate a text field in actionscript 3.0? As soon as I change the rotation property of the text field, it does not display. for example: var txtFld:TextField = new TextField(); txtFld.x = 100; txtFld.y = 100; txtFld.width = 300; txtFld.height = 300; txtFld.text = "Test String"; txtFld.rotation = 90; addChild(txtFld); 回答1: Some more info supporting Christophe Herreman : ActionScript - Rotating Text 回答2: In order to see rotated text, you'll have to embed the font. 回答3: an alternative

问题 Recently, I've been writing some Javascript that interacts with a page. As a part of this, I need to be able to submit an HTML input field. From what I've seen, most of the time input fields are a part of their own form. For example, StackOverflow's search bar has the form "search" and input field "q". However, on the particular page that I'm working with the input field does NOT have its own form. It is only a part of a greater form that encompasses many sections of the page. I'm aware that

问题 I have a table view and inside it, there is one column filled with TextField. There is no problem when I have few data and my table do not have scroll bar, all TextFields appears. The problem is, when I scroll down my table and then goes up again, some TextFields are missing. Here is my code for the column filled with TextField: purchaseQtyCol.setCellFactory( new Callback<TableColumn< TransactionModel, TextField>, TableCell< TransactionModel, TextField>>() { @Override public TableCell<