optionmenu

问题 I'm trying to modify the code here to have the user confirm the items selected from the optionmenus . If the user clicks on the Submit button, a message box should open prompting confirmation. Finally, I want the selected items to be returned to the program as variables so they can be used in other functions for further processing. However, my modification is not working; it just returns an empty window. Thoughts on what I am missing? Many thanks. from tkinter import * import tkinter

问题 I am working on android application . I have implemented supported action bar in it .I want to show option menu item always . But it is not showing . it is showing in drop down menu . my code for menu item given below. <item android:id="@+id/action_settings" android:icon="@drawable/add_post" android:title="@string/action_settings" /> And code of ActionBar Activity is given below:- @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return

问题 I am trying to show the Option menu on button click.How can I do this can anyone tell me. 回答1: You can use openOptionsMenu to programmatically open the options menu. If you have a Button , you can do: button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { openOptionsMenu(); } }); or else set android:onClick="myOnClickMethod" on your Button in xml and then have: public myOnClickMethod(View v) { openOptionsMenu(); } in your activity. 来源： https:/

问题 I have been successfully using the option menu within my ListActivity. Until now. Apparently the menu button only causes the options menu to appear when there is data in the list. I tried loading the ListActivity without any data. This causes the menu button to fail. Even if I load data a little later on, the menu data still fails. I have tried with both my HTC device and the emulator, just to make sure it was not a bug related to the hardware. Behavior is identical. The onPrepareOptionsMenu

问题 I am beginner , i wrote these codes for option menu , but in new Phones like Nexus4 menu option key does not appear (it should appear near back key on bottom of screen). my codes : @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); return true; } and @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu1: menu1_action(); return false; default: return

问题 I am trying to access the index of same values in optionmenu widget. In the following code, character "b" from the list returns index 1 no matter which of the two "b" characters I select. I need to differentiate both "b" characters based on their index position in the list i.e. selecting 1st "b" from the optionmenu widget should return index 1 while 2nd "b" should return index 2. Please tell me how to do it. Thanks in advance. from Tkinter import * class GUI(Frame): def __init__(self): Frame.

问题 Whenever I change the OptionMenu value, the callback runs smoothly, but my code requires the list (that I use for the OptionMenu) to be updated, when a button is pressed. When I looked into it, the only answer I could find was to completly erase OptionMenu and then insert each new value through .add_command method. The simplified code is as follows: import tkinter as tk from tkinter import ttk root = tk.Tk() # list_of_files = [] is previously defined def Change_selection_OptionMenu(event): #

问题 Basically I have a series of OptionMenus that are created in a loop, but is currently empty: option_menu = [] for ii in range(jj): option_menu.append([]) for ll in range(kk): option_menu[ii].append(OptionMenu(frame,tkinter_text_var[ii][ll],'')) Then elsewhere I use a checkbox to set the values along the lines of: for ii in range(jj): for ll in range(kk): option_menu[ii][ll]["menu"].add_command(label = name_from_box.get(), command = lambda: tkinter_text_var[ii][ll].set(name_from_box.get()))

问题 Hi Below is the code I am using to create option menu in my FragmentActivity :- @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.main, menu); return true; } // Menu options to set and cancel the alarm. @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { // When the user clicks START ALARM, set the alarm. case R.id.start_action: alarm.setAlarm(this); return true; // When the user

问题 I'm trying to get rid of the thick border showing up when I changed the optionmenu and submenu background and foreground color. I did manage to get rid or modify the parent optionmenu border by using: optmenu.configure(hilightthickness=0) There's a reference here changing the background color of the submenu: How to change menu background color of Tkinter's OptionMenu widget? ..but I can't seem to find a way to remove the outer border showing up on the submenu. Tried hilighthickness=0 but it's