user-interface

问题 I've written an R shiny application and am styling it before I complete it. I've written a small amount of HTML and want to change things such as the background colour using CSS. After consulting online I found I needed to seperate my css using the class argument, however when I specify a class for each page, it brings back no CSS at all. Below is a shortened version of my R shiny application. Any help would be greatly appreciated. library(shiny) setwd("C:\\Users\\FRSAWG\\Desktop\\Application

问题 I need to make the titles in BottomNavigationView in android be of a gradient color. <?xml version="1.0" encoding="utf-8"?> <gradient xmlns:android="http://schemas.android.com/apk/res/android" android:startColor="@color/gradientLeft" android:endColor="@color/gradientRight" android:angle="0"/> I have the colors set up and it works with e.g. icons on BtmNavView, but I can't get the titles to change their color to a gradient. <com.google.android.material.bottomnavigation.BottomNavigationView

问题 I need to make the titles in BottomNavigationView in android be of a gradient color. <?xml version="1.0" encoding="utf-8"?> <gradient xmlns:android="http://schemas.android.com/apk/res/android" android:startColor="@color/gradientLeft" android:endColor="@color/gradientRight" android:angle="0"/> I have the colors set up and it works with e.g. icons on BtmNavView, but I can't get the titles to change their color to a gradient. <com.google.android.material.bottomnavigation.BottomNavigationView

问题 Like if the script I uploaded to AWS has pyautogui.moveTo(0,0) Can it move the mouse of multiple computers at the same time or no? Thanks! 回答1: I'm the author of PyAutoGUI. PyAutoGUI can only run on your single, local machine. It can't run on AWS or other "headless" setups. This might be added as a feature in the future, but it currently isn't on the roadmap. PyAutoGUI relies on having a GUI to interact with. 来源： https://stackoverflow.com/questions/51343713/if-i-plan-to-run-a-python-script

问题 Like if the script I uploaded to AWS has pyautogui.moveTo(0,0) Can it move the mouse of multiple computers at the same time or no? Thanks! 回答1: I'm the author of PyAutoGUI. PyAutoGUI can only run on your single, local machine. It can't run on AWS or other "headless" setups. This might be added as a feature in the future, but it currently isn't on the roadmap. PyAutoGUI relies on having a GUI to interact with. 来源： https://stackoverflow.com/questions/51343713/if-i-plan-to-run-a-python-script

问题 I have the following code: from kivy.app import App from kivy.uix.floatlayout import FloatLayout class GUI(FloatLayout): def remove(self): self.remove_widget(self.ids.test) class GUIApp(App): def build(self): return GUI() if __name__ == '__main__': GUIApp().run() And the corresponding kv file: #:kivy 1.9.1 <GUI>: BoxLayout: Button: id: test text: 'Test' on_press: root.remove() The button should be removed when clicked. However, this does not happen. If I remove the BoxLayout in the kv file,

问题 I have the following code: from kivy.app import App from kivy.uix.floatlayout import FloatLayout class GUI(FloatLayout): def remove(self): self.remove_widget(self.ids.test) class GUIApp(App): def build(self): return GUI() if __name__ == '__main__': GUIApp().run() And the corresponding kv file: #:kivy 1.9.1 <GUI>: BoxLayout: Button: id: test text: 'Test' on_press: root.remove() The button should be removed when clicked. However, this does not happen. If I remove the BoxLayout in the kv file,

问题 For example: import threading import time import Tkinter class MyThread(threading.Thread): def __init__(self): threading.Thread.__init__(self) def run(self): print "Step Two" time.sleep(20) class MyApp(Tkinter.Tk): def __init__(self): Tkinter.Tk.__init__(self) self.my_widgets() def my_widgets(self): self.grid() self.my_button = Tkinter.Button(self, text="Start my function", command=self.my_function) self.my_button.grid(row=0, column=0) def my_function(self): print "Step One" mt = MyThread()

问题 For example: import threading import time import Tkinter class MyThread(threading.Thread): def __init__(self): threading.Thread.__init__(self) def run(self): print "Step Two" time.sleep(20) class MyApp(Tkinter.Tk): def __init__(self): Tkinter.Tk.__init__(self) self.my_widgets() def my_widgets(self): self.grid() self.my_button = Tkinter.Button(self, text="Start my function", command=self.my_function) self.my_button.grid(row=0, column=0) def my_function(self): print "Step One" mt = MyThread()

问题 I've read that the UI should always be updated on the main thread. However, I'm a little confused when it comes to the preferred method to implement these updates. I have various functions that perform some conditional checks then the result is used to determine how to update the UI. My question is should the entire function run on the main thread? Should just the UI update? Can / should I run the conditional checks on another thread? Does it depend on what the function does or how fast you