lostfocus | 易学教程

How to focus Buttons (or other widgets) with TalkBack turned ON in Android Device?

阅读更多关于 How to focus Buttons (or other widgets) with TalkBack turned ON in Android Device?

问题 I'm implementing Accessibility in my application. Here's the scenario : I have 4 buttons arranged horizontally at the very top of the screen (Activity). On the click of a button, I'm launching an Alert Dialog which displays something to the user. With the alert being displayed, I will still be able to perform click operations on those 4 buttons at the top of the screen. When I turn ON TalkBack (Android Accessibility Service) in Android device and click on that button, alert is getting

How to focus Buttons (or other widgets) with TalkBack turned ON in Android Device?

阅读更多关于 How to focus Buttons (or other widgets) with TalkBack turned ON in Android Device?

Wondering about TextBox methods

阅读更多关于 Wondering about TextBox methods

问题 I have a TextBox for which I would like to run through a few conditions based on whether or not there is an integer entered in it. My operations take place from the code-behind of the window that the TextBox exists in. Under the LostFocus event I would like to do the following: Check if the string IsNullOrEmpty -If it is - set text to "Default Record" Verify that the entered value is an Int If it isn't - Display a MessageBox(Ok Button) , then set focus back on the TextBox **This is what my

How can I know when an EditText loses focus?

阅读更多关于 How can I know when an EditText loses focus?

问题 I need to catch when an EditText loses focus, I've searched other questions but I didn't find an answer. I used OnFocusChangeListener like this OnFocusChangeListener foco = new OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { // TODO Auto-generated method stub } }; But, it doesn't work for me. 回答1: Implement onFocusChange of setOnFocusChangeListener and there's a boolean parameter for hasFocus. When this is false, you've lost focus to another control.

How to hide ckeditor when we click outside of the editor?

阅读更多关于 How to hide ckeditor when we click outside of the editor?

问题 Here is my code: <div id="showReplyDiv"> <form id="test"> <div> <textarea id="articleEditor" name="articleVO.articleC"></textarea> <script type="text/javascript"> CKEDITOR.replace( 'articleEditor',{customConfig : '/Forum/ckeditor/replyCKEditor.js'}); </script> </div> <div id="buttonArea"> <input type="button" id="doReply" value="submit"/> <input type="button" id="cancel" value="cancel"/> </div> </form> </div> I want it so that when the user clicks anywhere outside of this ckEditor , I can

XNA Is Running Slow when focus is removed

阅读更多关于 XNA Is Running Slow when focus is removed

问题 I'm just wondering, while making a game, I noticed that the GameTime value for IsRunningSlowly returns false when my game has focus (like it should), but when I change applications, it changes to true. I even made a empty game, and even when it losses focus, the GameTime value for IsRunningSlowly returns true as well. I'm wondering why does it do this? Is it just my computer, or did the creators of XNA design it this way? The frame rate seems fine, but the value is true. No big deal really, I

Disable firing TextChanged event

阅读更多关于 Disable firing TextChanged event

问题 I have textbox and I'm changing the text inside it when lostFocus is fired but that also fires up the textChanged event, which I'm handling but I don't want it to be fired in this one case, how can I disable it here? UPDATE: The idea with bool is good but I have couple of textboxes and I use the same event for all of them, so it's not working exactly as I want the way I want. Now it's working! : private bool setFire = true; private void mytextbox_LostFocus(object sender, RoutedEventArgs e) {

How do I find out where the focus is going in my WPF application?

阅读更多关于 How do I find out where the focus is going in my WPF application?

问题 I have a search screen in my WPF application. The screen is implemented as a UserControl in a TabItem of a TabControl. When the user switches to the Search tab, I want the focus to go into one particular field. So I added a Loaded event handler to the UserControl tag in the Xaml and I called the Focus method of the control I want to have the initial focus in the Loaded event handler. This worked great until I upgraded the Telerik control library I'm using today. Now, when I switch to the

Textfield Validation in Java using LostFocus event

阅读更多关于 Textfield Validation in Java using LostFocus event

问题 I am validating two textfields using LostFocus event as follows: textRegNo.addFocusListener(new FocusListener() { @Override public void focusLost(FocusEvent arg0) { // TODO Auto-generated method stub regNo1=textRegNo.getText(); Pattern pattern1 = Pattern.compile("^[A-Z]{2}[ -][0-9]{1,2}(?: [A-Z])?(?: [A-Z]*)? [0-9]{4}$"); Matcher matcher1 = pattern1.matcher(regNo1); if (!matcher1.find()){ JOptionPane.showMessageDialog(null, "Invalid Vehicle No!!!\n Vehicle no should be of the form MH 03 KS

Textfield Validation in Java using LostFocus event

阅读更多关于 Textfield Validation in Java using LostFocus event

I am validating two textfields using LostFocus event as follows: textRegNo.addFocusListener(new FocusListener() { @Override public void focusLost(FocusEvent arg0) { // TODO Auto-generated method stub regNo1=textRegNo.getText(); Pattern pattern1 = Pattern.compile("^[A-Z]{2}[ -][0-9]{1,2}(?: [A-Z])?(?: [A-Z]*)? [0-9]{4}$"); Matcher matcher1 = pattern1.matcher(regNo1); if (!matcher1.find()){ JOptionPane.showMessageDialog(null, "Invalid Vehicle No!!!\n Vehicle no should be of the form MH 03 KS 2131!!"); } } @Override public void focusGained(FocusEvent arg0) { // TODO Auto-generated method stub };