optionmenu

Adding command to a Tkinter OptionMenu?

て烟熏妆下的殇ゞ 提交于 2019-12-01 07:39:53
问题 I'm writing some code in Python 2.7.8 which includes the OptionMenu widget. I would like to create an OptionMenu that calls a function when the option is changed but I also want the possible options to be found in a list, as my final OptionMenu will have many options. I have used the following code to create an OptionMenu that calls a function: from Tkinter import* def func(value): print(value) root = Tk() var = StringVar() DropDownMenu=OptionMenu(root, var, "1", "2", "3", command=func)

Android custom option menu item

喜欢而已 提交于 2019-11-30 17:50:16
问题 everyone! I have question for Android guys. Any help or suggestion will be appreciated. So my problem: I have application with ActionBarCompat and in this action bar I have a lot of different hiden menu items, which appear only if user click on menu button at action bar. Also I have couple menu items at action bar, which always visible. I need some customization for one of visible menu item. When user click on this menu item (let's say it would be "Add new" menu item), I need to show

What does onPrepareOptionsMenu do?

耗尽温柔 提交于 2019-11-30 08:08:39
I want to make Option Menu for Android, I have visit this site. In their script, I found onPrepareOptionsMenu , I try to compile and run using Android 2.3.3 compiler with and without onPrepareOptionsMenu , both works, but I didn't see any difference. public boolean onCreateOptionsMenu(Menu menu){ //code here } public boolean onOptionsItemSelected(MenuItem item){ //code here } public boolean onPrepareOptionsMenu(Menu menu){ //code here } What is actually onPrepareOptionsMenu method do? Is that method important? Could I just delete the method? Addition Oh, I also hear about Action Bar in Android

tkinter optionmenu first option vanishes

时间秒杀一切 提交于 2019-11-30 02:05:00
A ttk optionmenu widget starts out with all of its values in the dropdown. Upon selecting any value, the first value in the list vanishes, never to reappear... Does anyone know why? Is this a feature of the widget's design? Try it with the following: import tkinter.ttk as ttk import tkinter as tk a = tk.Tk() options = ['1', '2', '3'] value = tk.StringVar() masterframe = ttk.Frame() masterframe.pack() dropdown = ttk.OptionMenu(masterframe, value, *options) dropdown.pack() a.mainloop() Note - another user asked the same question here: OptionMenu won't show the first option when clicked (Tkinter)

Adding command to a Tkinter OptionMenu?

怎甘沉沦 提交于 2019-11-29 12:47:42
I'm writing some code in Python 2.7.8 which includes the OptionMenu widget. I would like to create an OptionMenu that calls a function when the option is changed but I also want the possible options to be found in a list, as my final OptionMenu will have many options. I have used the following code to create an OptionMenu that calls a function: from Tkinter import* def func(value): print(value) root = Tk() var = StringVar() DropDownMenu=OptionMenu(root, var, "1", "2", "3", command=func) DropDownMenu.place(x=10, y=10) root.mainloop() I have also found the following code that creates an

Custom Menu on button click as drop down

拈花ヽ惹草 提交于 2019-11-29 12:20:25
I am trying to implement the action bar functionality of the flipkart app. . For this I have successfully created a custom Action Bar but I am facing problems in showing the menu as drop down on overflow icon click. If I try Android Option Menu on button click then on I am getting the menu without icons (4.2.2) at the bottom center of my screen. Using a custom dialog or alert dialog fades the background and they also appear on the center of the screen. What should I do to get the functionality similar as shown in the image above? Haresh Chhelana Try this way,hope this will help you to solve

What does onPrepareOptionsMenu do?

淺唱寂寞╮ 提交于 2019-11-29 10:43:30
问题 I want to make Option Menu for Android, I have visit this site. In their script, I found onPrepareOptionsMenu , I try to compile and run using Android 2.3.3 compiler with and without onPrepareOptionsMenu , both works, but I didn't see any difference. public boolean onCreateOptionsMenu(Menu menu){ //code here } public boolean onOptionsItemSelected(MenuItem item){ //code here } public boolean onPrepareOptionsMenu(Menu menu){ //code here } What is actually onPrepareOptionsMenu method do? Is that

Android: How can I set a listener to the MenuButton?

房东的猫 提交于 2019-11-29 03:37:24
I want to do a custom action when pressing on the Menu button on the phone. Is it possible to set an onClickListener (or similar) on the button and if so, how? onCreateOptionsMenu is only called the first time the button is pressed - I've already tried this. Usually you shouldn't override MENU behavior as users expect menu to appear, however you can use something along these lines: /* (non-Javadoc) * @see android.app.Activity#onKeyDown(int, android.view.KeyEvent) */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if ( keyCode == KeyEvent.KEYCODE_MENU ) { Log.d(TAG, "MENU

Custom Menu on button click as drop down

自古美人都是妖i 提交于 2019-11-28 05:55:01
问题 I am trying to implement the action bar functionality of the flipkart app. . For this I have successfully created a custom Action Bar but I am facing problems in showing the menu as drop down on overflow icon click. If I try Android Option Menu on button click then on I am getting the menu without icons (4.2.2) at the bottom center of my screen. Using a custom dialog or alert dialog fades the background and they also appear on the center of the screen. What should I do to get the

Android: How can I set a listener to the MenuButton?

梦想的初衷 提交于 2019-11-27 17:38:09
问题 I want to do a custom action when pressing on the Menu button on the phone. Is it possible to set an onClickListener (or similar) on the button and if so, how? onCreateOptionsMenu is only called the first time the button is pressed - I've already tried this. 回答1: Usually you shouldn't override MENU behavior as users expect menu to appear, however you can use something along these lines: /* (non-Javadoc) * @see android.app.Activity#onKeyDown(int, android.view.KeyEvent) */ @Override public