I'm new to kivy. Currently working on building an application in kivy.
My need to is to display some default information on top of the application (say for example., date, time ..)
Please suggest me a way to do that
I came across action bar in kivy but unable to add that in my currently built application.
The simplest way that I would approach this is to create a row of labels at the top of your screen. One would display the date, the next would display time, etc. Use the Kivy clock to update them every second.
Related
So im building a basic win32 GUI app and I have a vector of data that gets constantly updated through an external source via a port. Im interested in displaying that list of data to the user but im not sure the best approach to go about it without causing update flickering.
I originally had an edit box in which I build a string with the information and update the window. But it has proved troublesome as the amount of data grows since I cant scroll down to look at additional data. Any ideas?
My idea is no point of updating the visual control as the same speed you receive the data. Because even-though you update at the same speed the users cannot see that change at the speed of data receiving. Human eye does not see a change happening in speed as 1/8th of a second. So better to update the visual control in a controlled manner. Maybe using a timer.
Appending to the text of an edit control for each subsequent data point will lead to flickering as the whole control re-renders as the text has changed.
I'd advise one of the following options:
1) use a ListBox or ListView control; when you add another row item, it only re-draws the new/changed/scrolled item. https://learn.microsoft.com/en-us/windows/desktop/controls/create-a-simple-list-box and https://learn.microsoft.com/en-us/windows/desktop/controls/list-view-controls-overview
2) If you only want an always-scrolling list of data, consider just having a command-line application that writes to the standard output and saves you a lot of trouble - cout or printf your data.
You can also use EM_SETSEL and EM_SCROLLCARET to automatically scroll, but also check the position of the scroll bar before doing that. If not at the bottom, it means that the user wanted to pause, so you can scroll.
Also, you can have the scroll lock key checked in order whether to scroll or not, after all that is what it's name is supposed to do.
I want to build a "Picker Menu" inside a screen. I think the time picker popup components are not smooth enough to use, because they require extra clicks instead of just dragging to the wanted element.
The component should return the selected value + change the color of the selected value. I thought of ListView/ ScrollView, but I couldn't find a way to get that working yet.
Below: A great gimp graphic to show what the goal is, placing the Android Time Picker inside the screen as visual example.
That's what it could look like
Any ideas where to start? How can I build something like this with the React-Native components?
You can use react-native-wheel-picker or react-native-wheel-picker-android. These libraries provide wheel picker without opening any popup.
I'm developing a GDK app where I need to provide an user experience to display status text similar to video recording status that Glass provides ( displaying "Recording" status then displaying progress indicator and finally showing 'Complete' text ). Appreciate your input.
Right now, you'll need to write your own UI logic to do this (perhaps by using a Dialog with a custom layout that has the appropriate centered label and icon, with a progress bar at the bottom, and changing the label and dismissing the dialog when the action is complete).
You may want to follow issue 271 in our issue tracker, which covers the progress indicator part of this flow.
Tony is right. There is no way to do this naively but you can build it yourself. You can create a layout that is build exactly like the menu is built in the GDK, and then just update the setcontentview() with a new layout each time you want to move to the next card. Also you can build a layout with the holo horizontal progressbar to get the general idea but it won't be like the one Google uses.
Also wanted to add that I have built a repo that you can drop into your project for this. Here is the link: https://github.com/w9jds/GDK-ProgressBar
I have a question regarding a platform I'm developing called e-cidadania (GPL). One of the applications will be something like a blackboard where you can put messages. I've been requested to do it like a cartesian grid (p.e. x = good/bad, y = expensive/cheap). My question is, does anybody know about an application like that for django? Or in case that there isn't, how can I do it? I have no idea where to start.
I'll explain a use case, if someone didn't understand: You are in a classroom, the teacher draws on the blackboard the axis and tells the students to write a note. After that every student will put his note according to the axis.
I am not sure if I completely understand your question, but if I'm correct you want the user to input text (name of restaurant or something like that) and instead of showing 2 sliders or dropdown boxes for rating and price, you want to show a cartesian chart where the user can click somewhere, thus entering the 2 values with one click.
This has nothing to do with Django or Python, this is pure client side. Think javascript. One way is to show an image with the cartesian grid, set an onclick handler and see where in the image the click was made. Showing the selected point could be done simply by setting a colored div with an absolute position (relative on the position of the image).
I don't know any plug-and-play solutions, but building this shouldn't be too hard.
On a separate note: I doubt this will actually be more userfriendly for the user then simply using two sliders.
Update:
Or if you want to show a big cartesian chart where the user actually has to input the text on the correct position, this can be done with the same idea: create the text-input, but hide it (display:none). Then when the user clicks somewhere on the chart, move the text-input to the correct position and show it.
This may be a little far fetched, but instead of doing this with django alone, why dont u do this client side using javascript?
Hear me out here.
The highcharts graphing plugin has an option that allows u to add points on a (cartesian) graph. Check this example. The plugin also allows you to display custom messages when hovering on points, so you could use that to display the actual message, and you could handle the actual saving of the new message by submitting the newly added message via Ajax.
I have a simple GtkStatusBar created with glade,and want to add a simple message with the date of the last update of the database (just a simple and plain date).
I don't want to use the whole stacks, context and all the other things that gtk developers put on the statusbar code.
(I could simply use a label but I would like to keep the drag bar).
I'm using Gtk 2.0.1 with php 5.2.6;
try
http://www.kksou.com/php-gtk2/articles/have-a-status-area-using-GtkStatusbar.php
To display a message, we need to first get a message id with GtkStatusbar::get_context_id(), then display the message with GtkStatusbar::push().