keyboard-events - w3toppers.com

NSNotificationCenter Swift 3.0 on keyboard show and hide

Swift 3: override func viewDidLoad() { super.viewDidLoad() NotificationCenter.default.addObserver(self, selector: #selector(ViewController.keyboardWillShow), name: Notification.Name.UIKeyboardWillShow, object: nil) NotificationCenter.default.addObserver(self, selector: #selector(ViewController.keyboardWillHide), name: Notification.Name.UIKeyboardWillHide, object: nil) } func keyboardWillShow(notification: Notification) { if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue { print(“notification: Keyboard will show”) if self.view.frame.origin.y == 0{ self.view.frame.origin.y -= keyboardSize.height } } } func keyboardWillHide(notification: Notification) { if let keyboardSize … Read more

Type ‘NSNotification.Name’ has no member ‘keyboardDidShowNotification’

I believe you use it like this now. NotificationCenter.default.addObserver( self, selector: #selector(self.keyboardDidShow(notification:)), name: UIResponder.keyboardDidShowNotification, object: nil) /* You can substitute UIResponder with any of it’s subclass */ It is listed in UIResponder doc as a Type Property.

Android Use Done button on Keyboard to click button

You can use this one also (sets a special listener to be called when an action is performed on the EditText), it works both for DONE and RETURN: max.setOnEditorActionListener(new OnEditorActionListener() { @Override public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) { Log.i(TAG,”Enter … Read more

change keyboard layout with javascript

You won’t be able to change the keyboard layout using JS, but you can capture the keydown event and replace the character with something like this: http://jsfiddle.net/SxdKZ/ $(‘textarea’).on(‘keydown’, function(e){ console.log(e.keyCode); if( e.keyCode == 90 ){ e.preventDefault(); $(this).append(‘y’).focus(); } if( e.keyCode == 89 ){ e.preventDefault(); $(this).append(‘z’).focus(); } });

Python cross-platform listening for keypresses?

I don’t know of any cross-platform lightweight module that listens for keypresses. But here’s a suggestion in case you want to implement something simple: Check out this question on getting a single keypress at a time in the Python FAQ. You could experiment a bit with blocking reads from sys.stdin and threading. But this may … Read more

How to simulate typing in input field using jQuery?

You can send key events, and anything listening for them will get them, but they will not change the input, so you will not see the letter A appear, for example. This is mostly a security thing; see “Manually firing events” for a discussion about that. So, if you want the letter to appear, you … Read more

C++ console keyboard events

Use ReadConsoleInput() API. Watch for events of kind KEY_EVENT. This won’t work for all keydown events (Ctrl-key, shift-key, Pause-key cannot be read), but most can be read. Use GetNumberOfConsoleInputEvents to avoid blocking.

Android EditText, soft keyboard show/hide event?

Hi I’d used following workaround: As far as my content view is a subclass of LinearLayout (could be any other view or view group), I’d overridden onMeasure method lilke following: @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { final int proposedheight = MeasureSpec.getSize(heightMeasureSpec); final int actualHeight = getHeight(); if (actualHeight > proposedheight){ // Keyboard is … Read more

How to get a combination of keys in c#

It is a chord, you cannot detect it without memorizing having seen the first keystroke of the chord. This works: public partial class Form1 : Form { public Form1() { InitializeComponent(); } private bool prefixSeen; protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { if (prefixSeen) { if (keyData == (Keys.Alt | Keys.Control | Keys.P)) … Read more

How do you check for keyboard events with kivy?

I guess you are asking how to control the paddles with the keyboard. I assume you have the final ping pong codes running on your computer (If not, you can find them at the end of this section). 1 – In the main.py import the Window class: from kivy.core.window import Window 2 – Redefine the … Read more