keyevent

I'm trying to listen to key events in android web view. Example when user is filling a form, I should receive the key events. This is my WebView code public class MyWebView extends WebView implements OnKeyListener { ..... @Override public boolean onKeyDown(int keyCode, KeyEvent event) { Log.i("PcWebView", "onKeyDown keyCode=" + keyCode); return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { Log.i("PcWebView", "onKeyUp keyCode=" + keyCode); return super.onKeyUp(keyCode, event); } @Override // Listener is initialized in the constructor public

I need to simulate "Enter" key event in Qt. How can I do this? QKeyEvent *event = new QKeyEvent ( QEvent::KeyPress, Qt::Key_Enter); QCoreApplication::postEvent (receiver, event) dnlcrl The correct answer might be this: QKeyEvent *event = new QKeyEvent ( QEvent::KeyPress, Qt::Key_Enter, Qt::NoModifier); QCoreApplication::postEvent (receiver, event); in fact there are no matching function for call to QtKeyEvent::QtKeyEvent(Type type, int key) but there is: QtKeyEvent::QtKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers) 来源： https://stackoverflow.com/questions/2035310/how-can-i

I want to catch the press of any key of the softkeyboard. I don't want a EditView or TextView in my Activity, the event must be handled from a extended View inside my Activity. I just tried this: 1) Override the onKeyUp(int keyCode, KeyEvent event) Activity method. This don't work with softkeyboard, it just catch few hardkeyboard. 2) Create my OnKeyListener and register that in my View that contains a registered and working OnTouchListener . This doesn't work at all with softkeyboard. 3) Override the onKeyUp(int keyCode, KeyEvent event) View method. This not work at all neither if I set my

I was wondering if instead of doing this protected override void OnKeyDown(KeyEventArgs e) { if (e.KeyCode == Keys.A) Console.WriteLine("The A key is down."); } I could set up a bool method and do this: if(KeyDown(Keys.A)) // do whatever here I've been sitting here for ages trying to figure out how to do it. But I just can't wrap my head around it. In case you were wondering, my plan is to call the bool inside a different method, to check for input. Since you usually want to perform an action immediately after pressing a key, usually using a KeyDown event is enough. But in some cases I suppose

If you use the java KeyListener class you know that if you hold down a key keyPressed will fire one KeyEvent , and then about half a second later will fire the same key many times very very fast. I would like to know if there is a way to keep the KeyEvents from firing too fast. I would like them to be at a nice constant rate of about once every 500 ms. You can, but the trick is to not slow down the firing of events, but to slow down how fast you process them: KeyListener kl = new KeyListener() { private long lastPressProcessed = 0; @Override public void keyPressed(KeyEvent e) { if(System

I have a TabActivity and want to catch and handle presses of HOME and BACK. Where do I need to catch these events? In my subclass of TabActivity I implement the following: @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { // Code handling } return super.onKeyDown(keyCode, event); } Didn't work. So I placed a breakpoint on the switch statement line. But this function never gets called, whether I press volume up/down, menu, home, or back. Where do I need to catch these KeyEvents? Steve Zeng It turns out to be pretty easy. Add the following code to your child

I just read this question: Full Screen Page by pressing button instead of F11 The op asked to replace F11 with other hot keys, so I'm wondering that maybe I can simulate press F11 to get things work. I learned that I can use trigger in JQuery to simulate key press event, so I do something like this: $("body").keyup(function (e) { alert(e.which); }); var e = $.Event("keyup"); e.which = 122; // # Key code of F11 $("body").trigger(e); When I run this, I got the alert says 122, but it seems that it doesn't give the hoped result. Is there a restriction there? I made a fiddle here: http://jsfiddle

I have a Java Swing application in the NetBeans IDE. I made a form and attached a KeyListener to my various controls as such: jButton1.addKeyListener(new java.awt.event.KeyAdapter() { public void keyTyped(java.awt.event.KeyEvent evt) { keyTypedEvent(evt); } }); and keyTypedEvent is defined as such: private void keyTypedEvent(java.awt.event.KeyEvent evt) { System.out.println(evt); appendDisplay(String.valueOf(evt.getKeyChar())); } I added a println to the evt to see what happens and to verify that my keylistener does work. When I build and run my application, I realized that the output always