focus

问题 I want to know the actual difference between them... When should each be used, how should each be used, and in which situations is each helpful? Give some examples and explain them in detail. 回答1: It is explained in the Android Developers Blog: http://android-developers.blogspot.co.at/2008/12/touch-mode.html The following quotes should make it clear: By itself, the touch mode is something very easy to understand as it simply indicates whether the last user interaction was performed with the

问题 JTable's default behavior is changing focus to next cell and I want to force it to move focus to next component (e.g. JTextField) on TAB key pressed. I overrided isCellEditable method of DefaultTableModel to always return false: public boolean isCellEditable(int rowIndex, int columnIndex) { return false; } But it still doesn't change focus to next component! How should I make JTable change focus to next component instead of next cell? 回答1: If you really want this, you need to change the

问题 JTable's default behavior is changing focus to next cell and I want to force it to move focus to next component (e.g. JTextField) on TAB key pressed. I overrided isCellEditable method of DefaultTableModel to always return false: public boolean isCellEditable(int rowIndex, int columnIndex) { return false; } But it still doesn't change focus to next component! How should I make JTable change focus to next component instead of next cell? 回答1: If you really want this, you need to change the

问题 Is there any way to have a label respond to focus. I have some code where the textfield has a different style on focus. The label also however needs a slightly different style. I tried this but it did not effect the label. #header .search label { background:url(http://www.golfbrowser.com/images/icons/search.png) left top no-repeat; padding-left:20px; height:20px; float:right; } #header .search label:focus { background:url(http://www.golfbrowser.com/images/icons/search-z.png) left top no

问题 I have one h1 element, which has a :after pseudo element, when firstly press tab, this h1 element will get focus, but when I press tab again, the focus will go to next REAL element, how could I make the focus go to the pseudo element? HTML: <h1 class="title" tabindex="0">Some text</h1> CSS: title::after { width: 16px; height: 16px; background: url('image') } I want to let focus go to this 16X16 image, is it possible? 回答1: The ::before and ::after pseudo-elements are not focusable. If you

问题 I'm having some issues getting a notification box to behave correctly in c#. Basically I'm showing a boarderless form in the lower right hand side of the screen, which displays a message for a few seconds and then disappears. The problem is that I need it to appear on top of other windows without it ever being able to steal focus. Ideally, I want it to be purely managed code, although looking through similar examples I doubt this will be possible. At the moment I'm preventing it from stealing

问题 I have a textarea... <textarea> Some writing here * Then some more on another line </textarea> What I want to do is focus the user where the * is. Is this possible? 回答1: Use the following function to set a selection within a textarea. function setSelRange(inputEl, selStart, selEnd) { if (inputEl.setSelectionRange) { inputEl.focus(); inputEl.setSelectionRange(selStart, selEnd); } else if (inputEl.createTextRange) { var range = inputEl.createTextRange(); range.collapse(true); range.moveEnd(

问题 I'm making a Chrome extension that involves putting a text input on the new tab page, and immediately giving focus to that input text when the new tab page loads. After being unable to get focus using traditional methods (e.g. focus() ), I stumbled upon this question: Chrome 27: New Tab Page extension can't steal focus from Omnibox which states that Chrome has now made it so that you can't steal omnibox focus on a new tab page. Given that Chrome is fine with giving focus to any site that isn

问题 I have an application developed in netbeans and I want to set the focus to a certain jTextField when a panel is displayed. I have read a number of post and have tried various methods but non have worked. One of the main issues is where to place the required code, which I believe in my case is this.txtMessage.requestFocusInWindow(); There are some posts that indicate using a Window Listener, however as netbeans has generated the GUI, I cannot see how to implement the interfaces as I cannot

问题 When a mobile browser brings up a keyboard it tries to move the scrollbars so that the input is still in view. On iOS Safari it seems to do this properly by finding the nearest scrolling parent. On Android native or Chrome mobile browser it seems to just try the body element and then gives up, so the focused input is hidden beneath the keyboard. How to break it Set overflow-y: hidden on the body element. Create a scrollable container and put a form in there. When you select an element near