如何使用 canvas 從 URL 在 Tkinter 應用程序上顯示照片

Question

import io
import base64

try:
    # Python2
    import Tkinter as tk
    from urllib2 import urlopen
except ImportError:
    # Python3
    import tkinter as tk
    from urllib.request import urlopen
   


def display_poster(image_url, x, y):
    # image_url = "http://i46.tinypic.com/r9oh0j.gif"

    image_byt = urlopen(image_url).read()
    image_b64 = base64.encodebytes(image_byt)
    photo = tk.PhotoImage(data=image_b64)

    # create a white canvas
    cv = tk.Canvas(bg='white')
    cv.pack(side='top', fill='both', expand='yes')

    # put the image on the canvas with
    # create_image(xpos, ypos, image, anchor)
    cv.create_image(x, y, image=photo, anchor='nw')

def btn_clicked():
    display_poster("http://i46.tinypic.com/r9oh0j.gif", 630, 350)

我已經嘗試過base64 package解決方案，但它不起作用。 如果有人可以幫助我解決我需要導入的軟件包和function使用Canvas顯示圖像，那就太好了。

Answer 1

使用這個片段，它的工作正常：

import tkinter as tk
import urllib.request
#import base64
import io
from PIL import ImageTk, Image

root = tk.Tk()
root.title("Weather")

link = "http://i46.tinypic.com/r9oh0j.gif"

class WebImage:
    def __init__(self, url):
        with urllib.request.urlopen(url) as u:
            raw_data = u.read()
        #self.image = tk.PhotoImage(data=base64.encodebytes(raw_data))
        image = Image.open(io.BytesIO(raw_data))
        self.image = ImageTk.PhotoImage(image)

    def get(self):
        return self.image

img = WebImage(link).get()
imagelab = tk.Label(root, image=img)
imagelab.grid(row=0, column=0)

root.mainloop()

Output：