将图像添加到 tkinter gui [英] adding image to tkinter gui
问题描述
我是 Tkinter 的新手.我想创建一个可以支持嵌入音频文件并且还具有背景图像的 GUI.我无休止地尝试安装 pygame 无济于事.我似乎无法弄清楚为什么它没有正确安装，所以此时我只是想找到最简单的方法来拥有这两个选项.下面是我尝试使用画布小部件显示背景图像.但是，我总是收到一个错误，我的变量没有定义.我真的很感激一些关于我做错了什么的反馈，以及任何不仅仅涉及基础知识的有用的 tkinter 教程.提前致谢
I am new to Tkinter. I want to create a GUI that can support embedding audio files and that also has a background image. I have tried endlessly to install pygame to no avail. I cannot seem to figure out why it is not installing correctly so at this point I am just trying to find the easiest way possible to have these two options. Below is my attempt at displaying a background image using a canvas widget. However, I always get an error that my variables are not defined. I would really appreciate some feedback on what I am doing wrong, as well as any helpful tkinter tutorials that involve more than just the basics. Thanks in advance
from Tkinter import *
root = Tk()
root.geometry("500x500")
class Application(Frame):
def __init__(self, master):
#initialize the frame
Frame.__init__(self, master)
self.grid()
self.createWidgets()
def createWidgets(self):
self.can = Canvas(root, width=160, height=160, bg='white')
self.pic = PhotoImage(file='speaker.gif')
self.item = can.create_image(80, 80, image=pic)
app = Application(root)
#kick off event loop
root.mainloop()
推荐答案
每次你想在一个类的方法中使用它的属性时，你需要在它的前面加上 self. 前缀:
Every time you want to use an attribute of a class inside one of its methods, you need to prefix it with self.:
self.item = self.can.create_image(80, 80, image=self.pic)
# ^^^^^ ^^^^^
否则，Python 会将名称视为函数的本地名称，并在找不到它们时引发异常.
Otherwise, Python will treat the names as being local to the function and will raise an exception when it fails to find them.
此外，您忘记在画布小部件上调用 grid:
Also, you forgot to call grid on your canvas widget:
self.can = Canvas(root, width=160, height=160, bg='white')
self.can.grid(...)
<小时>
关于 Tkinter 的资源，您可以查看这些:
As for resources on Tkinter, you can check out these:
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