user-interface

问题 I'm trying to generate a UI element that is dynamic based on how the user wishes to provide their input. I'm using the Shiny Dashboard for simplicity but I have encountered an issue with the sidebarMenu. Previously when I was placing static UI elements directly into the sidebarMenu, I had no issue, however when trying to place dynamic UI elements into the sidebarMenu I have problems. I'm using R 3.3.2 and Shiny 1.0.0 and Dashboard 0.5.3. The specific problem I have is that when the program

问题 I'm trying to generate a UI element that is dynamic based on how the user wishes to provide their input. I'm using the Shiny Dashboard for simplicity but I have encountered an issue with the sidebarMenu. Previously when I was placing static UI elements directly into the sidebarMenu, I had no issue, however when trying to place dynamic UI elements into the sidebarMenu I have problems. I'm using R 3.3.2 and Shiny 1.0.0 and Dashboard 0.5.3. The specific problem I have is that when the program

问题 I have an adapter and a spinner view which is set to use the adapter for it's entries. I'm adding items to adapter from a list of all files in /assets/ folder, I found that this task takes very long time (even about 2 seconds for a list of 2 files on a 1.5Ghz phone!). Then I came up to use a worker thread to gather my list and not block UI thread. here is my code: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.settings);

问题 I have an adapter and a spinner view which is set to use the adapter for it's entries. I'm adding items to adapter from a list of all files in /assets/ folder, I found that this task takes very long time (even about 2 seconds for a list of 2 files on a 1.5Ghz phone!). Then I came up to use a worker thread to gather my list and not block UI thread. here is my code: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.settings);

问题 I have an adapter and a spinner view which is set to use the adapter for it's entries. I'm adding items to adapter from a list of all files in /assets/ folder, I found that this task takes very long time (even about 2 seconds for a list of 2 files on a 1.5Ghz phone!). Then I came up to use a worker thread to gather my list and not block UI thread. here is my code: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.settings);

问题 I currently have a python file that I have to run for different excel files on a daily basis. The steps are : Open .py file change directory of excel file run python file write to .xlsx This takes in a excel file as a pandas dataframe does some manipulation and other things and spits out an excel file. The problem is that I have to change the directory each time manually in the code. I would rather build a nice GUI for me to pick the source file that I want to manipulate, pick the output

问题 I would like to be able to delay the default action of an event until some other action has been taken. What it's for: I'm trying to build a reusable, unobtrusive way to confirm actions with a modal-type dialogue. The key wishlist item is that any Javascript handlers are attached by a script, and not written directly inline. To make this truly reusable, I want to use it on different types of items: html links, checkboxes, and even other Javascript-driven actions. And for purely HTML elements

问题 I am trying to build a simple game of Connect Four with Python(2.7) I have created a board, that consists of a simple multidimensional Python list. My Board list looks like this: board = [ [_,_,_,_,_,_,_,_,_,_], [_,_,_,_,_,_,_,_,_,_], [_,_,_,_,_,_,_,_,_,_], [_,_,_,_,_,_,_,_,_,_], [_,_,_,_,_,_,_,_,_,_], [_,_,_,_,_,_,_,_,_,_], [_,_,_,_,O,_,_,_,_,_], [_,_,_,_,X,_,_,_,_,_], [_,_,_,_,X,O,_,_,_,_], [_,_,_,_,X,O,_,_,_,_], ] Were X is Player1 and O is Player2 (or Computer). Now, I have created some

问题 How do I get the 'id' of an item in a selectable list, if the list is created dynamically? <ul id="selectable"> <li id='1'>..</li> . . <li... </ul> I tried var num = $('#selecable :selected').attr( "option" , 'id' ); but get only [object Object]... What is the right way? 回答1: Update: For completeness, if an element is selected, the plugin adds a class ui-selected to the element. So you can get the ID of current selected element via: $('#selectable .ui-selected').attr('id'); But be aware that

问题 How do I get the 'id' of an item in a selectable list, if the list is created dynamically? <ul id="selectable"> <li id='1'>..</li> . . <li... </ul> I tried var num = $('#selecable :selected').attr( "option" , 'id' ); but get only [object Object]... What is the right way? 回答1: Update: For completeness, if an element is selected, the plugin adds a class ui-selected to the element. So you can get the ID of current selected element via: $('#selectable .ui-selected').attr('id'); But be aware that