Kivy，使用函数并将随机信息获取到文本输入和随机图像？
Kivy, using functions and getting random info to textinput and random image?
我想我找不到解决方案了。我不知道 .kv 页面的功能是如何工作的。
我的示例代码如下。问题是当我点击 "Good Luck" 按钮时出现错误，例如 "AttributeError: 'Button' object has no attribute 'app'" 我尝试将我的功能行替换到不同的地方，例如 class 下，但不断出现不同的错误，我是不是遗漏了什么显而易见还是我的整个方法都是错误的？
main.py
# -*- coding: utf8 -*-
from trakt.users import User
import random
import imdb
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
import kivy.app
kivy.require('1.9.1')
moviesDB = imdb.IMDb()
myuser = User(str('lunedor'))
watchlist = myuser.watchlist_movies
def dataget():
global myline
myline = str(random.choice(watchlist))[9:1000]
movies = moviesDB.search_movie(str(myline))
id = movies[0].getID()
global movie
movie = moviesDB.get_movie(id)
global posterurl
posterurl = movie["full-size cover url"]
global title
title = movie['title']
global year
year = movie["year"]
global rating
rating = movie["rating"]
global runtime
runtimes = movie["runtimes"]
runtime = ' '.join(map(str, runtimes))
global directStr
directors = movie["directors"]
directStr = ' '.join(map(str, directors))
global writerStr
writers = movie["writers"]
writerStr = ', '.join(map(str, writers))
global casting
casting = movie["cast"]
global actors
actors = ', '.join(map(str, casting))
global summary
summary = movie["plot outline"]
genres = movie["genres"]
global genre
genre = ', '.join(map(str, genres))
print(movie)
print(id)
posterurl = movie["full-size cover url"]
showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
showline3 = "Cast: " + actors
showline4 = "Summary: " + "\n" + str(summary)
class RootWidget(GridLayout):
def __init__(self, **kwargs):
super(RootWidget, self).__init__(**kwargs)
try:
dataget()
except:
print('Error')
dataget()
posterurl = movie["full-size cover url"]
showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
showline3 = "Cast: " + actors
showline4 = "Summary: " + "\n" + str(summary)
class MyApp(App):
def build(self):
return RootWidget()
def clk(self):
try:
dataget()
except:
print('Error')
dataget()
def clk2(self):
exit()
if __name__ == '__main__':
App=MyApp()
App.run()
My.kv
<RootWidget>:
cols: 2
rows: 1
orientation: 'horizontal'
GridLayout:
cols: 1
rows: 1
orientation: 'horizontal'
AsyncImage:
id: poster
source: root.posterurl
nocache: True
GridLayout:
cols: 1
rows: 5
orientation: 'vertical'
spacing: 10
Label:
text: root.showline1
markup: True
bold: True
size: self.texture_size
halign: 'center'
valign: 'middle'
id: self.lbl
TextInput:
text: root.showline2
id: self.lbl2
TextInput:
text: root.showline3
id: self.lbl3
multiline: True
TextInput:
text: root.showline4
id: self.lbl4
multiline: True
BoxLayout:
cols: 2
rows: 1
spacing: 5
padding: 50, 10, 10, 10
size_hint_max_y: 40
orientation: 'horizontal'
Button:
text: "Good Luck!"
font_size: 14
size_hint: None, None
size: 95, 30
on_press: root.app.clk()
Button:
text: "Exit"
font_size: 14
size_hint: None, None
size: 75, 30
on_press: root.app.clk2()
解决版本：
# -*- coding: utf8 -*-
from trakt.users import User
import random
import imdb
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.properties import StringProperty, ObjectProperty
import kivy.app
kivy.require('1.9.1')
moviesDB = imdb.IMDb()
myuser = User(str('lunedor'))
watchlist = myuser.watchlist_movies
def dataget():
global myline
myline = str(random.choice(watchlist))[9:1000]
movies = moviesDB.search_movie(str(myline))
id = movies[0].getID()
global movie
movie = moviesDB.get_movie(id)
global posterurl
posterurl = movie["full-size cover url"]
global title
title = movie['title']
global year
year = movie["year"]
global rating
rating = movie["rating"]
global runtime
runtimes = movie["runtimes"]
runtime = ' '.join(map(str, runtimes))
global directStr
directors = movie["directors"]
directStr = ' '.join(map(str, directors))
global writerStr
writers = movie["writers"]
writerStr = ', '.join(map(str, writers))
global casting
casting = movie["cast"]
global actors
actors = ', '.join(map(str, casting))
global summary
summary = movie["plot outline"]
genres = movie["genres"]
global genre
genre = ', '.join(map(str, genres))
print(movie)
print(id)
class RootWidget(GridLayout):
def __init__(self, **kwargs):
super(RootWidget, self).__init__(**kwargs)
try:
dataget()
except:
print('Error')
dataget()
posterurl = ObjectProperty()
showline1 = StringProperty()
showline2 = StringProperty()
showline3 = StringProperty()
showline4 = StringProperty()
# make a function to be able to call it
def update_values(self):
self.posterurl = movie["full-size cover url"]
self.showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
self.showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
self.showline3 = "Cast: " + actors
self.showline4 = "Summary: " + "\n" + str(summary)
class MyApp(App):
def build(self):
# you will need that object later so put in into variable
self.rw = RootWidget()
# call update function
self.rw.update_values()
return self.rw
def clk(self):
try:
dataget()
# after you get new values update the variables connected to widgets
self.rw.update_values()
except:
print('Error')
dataget()
def clk2(self):
exit()
if __name__ == '__main__':
App=MyApp()
App.run()
您应该使用 root 或应用程序，而不是同时使用。在您的情况下，它将是 app 因为您的功能在 App class:
on_press: app.clk()
当然不会自己更新，你更新全局变量不更新局部变量。试试这个：
class RootWidget(GridLayout):
def __init__(self, **kwargs):
super(RootWidget, self).__init__(**kwargs)
try:
dataget()
except:
print('Error')
dataget()
# make a function to be able to call it
def update_values(self):
self.posterurl = movie["full-size cover url"]
self.showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
self.showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
self.showline3 = "Cast: " + actors
self.showline4 = "Summary: " + "\n" + str(summary)
class MyApp(App):
def build(self):
# you will need that object later so put in into variable
self.rw = RootWidget()
# call update function
self.rw.update_values()
return self.rw
def clk(self):
try:
dataget()
# after you get new values update the variables connected to widgets
self.rw.update_values()
except:
print('Error')
dataget()
这应该有效。如果不行，我会告诉你一个困难的方法。
我想我找不到解决方案了。我不知道 .kv 页面的功能是如何工作的。 我的示例代码如下。问题是当我点击 "Good Luck" 按钮时出现错误，例如 "AttributeError: 'Button' object has no attribute 'app'" 我尝试将我的功能行替换到不同的地方，例如 class 下，但不断出现不同的错误，我是不是遗漏了什么显而易见还是我的整个方法都是错误的？
main.py
# -*- coding: utf8 -*-
from trakt.users import User
import random
import imdb
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
import kivy.app
kivy.require('1.9.1')
moviesDB = imdb.IMDb()
myuser = User(str('lunedor'))
watchlist = myuser.watchlist_movies
def dataget():
global myline
myline = str(random.choice(watchlist))[9:1000]
movies = moviesDB.search_movie(str(myline))
id = movies[0].getID()
global movie
movie = moviesDB.get_movie(id)
global posterurl
posterurl = movie["full-size cover url"]
global title
title = movie['title']
global year
year = movie["year"]
global rating
rating = movie["rating"]
global runtime
runtimes = movie["runtimes"]
runtime = ' '.join(map(str, runtimes))
global directStr
directors = movie["directors"]
directStr = ' '.join(map(str, directors))
global writerStr
writers = movie["writers"]
writerStr = ', '.join(map(str, writers))
global casting
casting = movie["cast"]
global actors
actors = ', '.join(map(str, casting))
global summary
summary = movie["plot outline"]
genres = movie["genres"]
global genre
genre = ', '.join(map(str, genres))
print(movie)
print(id)
posterurl = movie["full-size cover url"]
showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
showline3 = "Cast: " + actors
showline4 = "Summary: " + "\n" + str(summary)
class RootWidget(GridLayout):
def __init__(self, **kwargs):
super(RootWidget, self).__init__(**kwargs)
try:
dataget()
except:
print('Error')
dataget()
posterurl = movie["full-size cover url"]
showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
showline3 = "Cast: " + actors
showline4 = "Summary: " + "\n" + str(summary)
class MyApp(App):
def build(self):
return RootWidget()
def clk(self):
try:
dataget()
except:
print('Error')
dataget()
def clk2(self):
exit()
if __name__ == '__main__':
App=MyApp()
App.run()
My.kv
<RootWidget>:
cols: 2
rows: 1
orientation: 'horizontal'
GridLayout:
cols: 1
rows: 1
orientation: 'horizontal'
AsyncImage:
id: poster
source: root.posterurl
nocache: True
GridLayout:
cols: 1
rows: 5
orientation: 'vertical'
spacing: 10
Label:
text: root.showline1
markup: True
bold: True
size: self.texture_size
halign: 'center'
valign: 'middle'
id: self.lbl
TextInput:
text: root.showline2
id: self.lbl2
TextInput:
text: root.showline3
id: self.lbl3
multiline: True
TextInput:
text: root.showline4
id: self.lbl4
multiline: True
BoxLayout:
cols: 2
rows: 1
spacing: 5
padding: 50, 10, 10, 10
size_hint_max_y: 40
orientation: 'horizontal'
Button:
text: "Good Luck!"
font_size: 14
size_hint: None, None
size: 95, 30
on_press: root.app.clk()
Button:
text: "Exit"
font_size: 14
size_hint: None, None
size: 75, 30
on_press: root.app.clk2()
解决版本：
# -*- coding: utf8 -*-
from trakt.users import User
import random
import imdb
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.properties import StringProperty, ObjectProperty
import kivy.app
kivy.require('1.9.1')
moviesDB = imdb.IMDb()
myuser = User(str('lunedor'))
watchlist = myuser.watchlist_movies
def dataget():
global myline
myline = str(random.choice(watchlist))[9:1000]
movies = moviesDB.search_movie(str(myline))
id = movies[0].getID()
global movie
movie = moviesDB.get_movie(id)
global posterurl
posterurl = movie["full-size cover url"]
global title
title = movie['title']
global year
year = movie["year"]
global rating
rating = movie["rating"]
global runtime
runtimes = movie["runtimes"]
runtime = ' '.join(map(str, runtimes))
global directStr
directors = movie["directors"]
directStr = ' '.join(map(str, directors))
global writerStr
writers = movie["writers"]
writerStr = ', '.join(map(str, writers))
global casting
casting = movie["cast"]
global actors
actors = ', '.join(map(str, casting))
global summary
summary = movie["plot outline"]
genres = movie["genres"]
global genre
genre = ', '.join(map(str, genres))
print(movie)
print(id)
class RootWidget(GridLayout):
def __init__(self, **kwargs):
super(RootWidget, self).__init__(**kwargs)
try:
dataget()
except:
print('Error')
dataget()
posterurl = ObjectProperty()
showline1 = StringProperty()
showline2 = StringProperty()
showline3 = StringProperty()
showline4 = StringProperty()
# make a function to be able to call it
def update_values(self):
self.posterurl = movie["full-size cover url"]
self.showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
self.showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
self.showline3 = "Cast: " + actors
self.showline4 = "Summary: " + "\n" + str(summary)
class MyApp(App):
def build(self):
# you will need that object later so put in into variable
self.rw = RootWidget()
# call update function
self.rw.update_values()
return self.rw
def clk(self):
try:
dataget()
# after you get new values update the variables connected to widgets
self.rw.update_values()
except:
print('Error')
dataget()
def clk2(self):
exit()
if __name__ == '__main__':
App=MyApp()
App.run()
您应该使用 root 或应用程序，而不是同时使用。在您的情况下，它将是 app 因为您的功能在 App class:
on_press: app.clk()
当然不会自己更新，你更新全局变量不更新局部变量。试试这个：
class RootWidget(GridLayout):
def __init__(self, **kwargs):
super(RootWidget, self).__init__(**kwargs)
try:
dataget()
except:
print('Error')
dataget()
# make a function to be able to call it
def update_values(self):
self.posterurl = movie["full-size cover url"]
self.showline1 = title + "\n" + str(year) + " - " + str(rating) + "\n" + str(runtime) + " minutes" + " - " + genre
self.showline2 = "Director: " + directStr + "\n" + "\n" + "Writers: " + writerStr
self.showline3 = "Cast: " + actors
self.showline4 = "Summary: " + "\n" + str(summary)
class MyApp(App):
def build(self):
# you will need that object later so put in into variable
self.rw = RootWidget()
# call update function
self.rw.update_values()
return self.rw
def clk(self):
try:
dataget()
# after you get new values update the variables connected to widgets
self.rw.update_values()
except:
print('Error')
dataget()
这应该有效。如果不行，我会告诉你一个困难的方法。