当从def向treeview添加一个图像时,我遇到了问题
案例1-它是好的
import tkinter
import PIL.Image, PIL.ImageTk
from tkinter import PhotoImage
from tkinter import ttk
window = tkinter.Tk()
tree = ttk.Treeview(window)
tree["columns"]="one"
tree.heading("#0",text="Item",anchor=tkinter.W)
tree.heading("one", text="Detections",anchor=tkinter.W)
style = ttk.Style(window)
style.configure('Treeview', rowheight=50)
tree.grid(row=0,column=0,sticky=tkinter.N)
img = PIL.Image.open("1.jpg")
img = img.resize((10, 10))
img = PIL.ImageTk.PhotoImage(img)
tree.insert('', 'end', text="predict", image=img, value=("title"))案例二-不工作
window = tkinter.Tk()
tree = ttk.Treeview(window)
tree["columns"]="one"
tree.heading("#0",text="Item",anchor=tkinter.W)
tree.heading("one", text="Detections",anchor=tkinter.W)
style = ttk.Style(window)
style.configure('Treeview', rowheight=50)
tree.grid(row=0,column=0,sticky=tkinter.N)
#img = PIL.Image.open("2.jpg")
#img = img.resize((10, 10))
#img = PIL.ImageTk.PhotoImage(img)
#tree.insert('', 'end', text="predict", image=img, value=("title"))
def snapshot():
img = PIL.Image.open("2.jpg")
img = img.resize((10, 10))
img = PIL.ImageTk.PhotoImage(img)
tree.insert('', 'end', text="predict2", image=img, value=("title2"))
btn_snapshot=tkinter.Button(window, text="Snapshot", width=50, command=snapshot)
btn_snapshot.grid(row=1,column=0)那么,问题是当从def.添加图像时.我可以添加项,但是图像不可见
知道吗?
发布于 2019-07-03 11:14:07
谢谢,伙计,把解决方案复制给其他人。@henry,你是对的,重要的是把所有的图像保存在函数之外的列表中
list_img = []
def snapshot():
img = PIL.Image.open("frame-01-07-2019-22-02-38.jpg")
img = img.resize((10, 10))
img = PIL.ImageTk.PhotoImage(img)
list_img.append(img)
tree.insert('', 'end', text="predict2", image=list_img[len(list_img)-1], value=("title2"))发布于 2019-07-02 04:36:42
很常见的问题。你必须保存一个图像参考。
def snapshot():
img = PIL.Image.open("2.jpg")
img = img.resize((10, 10))
img = PIL.ImageTk.PhotoImage(img)
tree.img2dotjpg = img # store the reference
tree.insert('', 'end', text="predict2", image=img, value=("title2"))https://stackoverflow.com/questions/56845314
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