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How do I make a textbox that only accepts numbers?
I have a windows forms app with a textbox control that I want to only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more g...
How to display count of notifications in app launcher icon [duplicate]
...hout custom launchers and touch interfaces) does not allow changing of the application icon, because it is sealed in the .apk tightly once the program is compiled. There is no way to change it to a 'drawable' programmatically using standard APIs. You may achieve your goal by using a widget instead o...
Cookie overflow in rails application?
...ation
rake db:migrate
Modify config/initializers/session_store.rb from
(App)::Application.config.session_store :cookie_store, :key => 'xxx'
to
(App)::Application.config.session_store :active_record_store
Once you’ve done the three steps, restart your application. Rails will now use the...
What is the minimum I have to do to create an RPM file?
...
I often do binary rpm per packaging proprietary apps - also moster as websphere - on linux.
So my experience could be useful also a you, besides that it would better to do a TRUE RPM if you can. But i digress.
So the a basic step for packaging your (binary) program is as ...
Django - how to create a file and save it to a model's FileField?
...der. Turns out the issue is that I'm using docker-compose to run my django app along with a celery worker. The django app volume for MEDIA_ROOT was not shared with the same volume in the celery worker. Sharing the named volume fixed it (ref).
– shadi
May 12 '18...
How to get the full path of running process?
I am having a application that is changing some settings of other application (it is a simple C# application that run by double clicking (no setup required)).
...
SQlite Getting nearest locations (with latitude and longitude)
...
1) At first filter your SQLite data with a good approximation and decrease amount of data that you need to evaluate in your java code. Use the following procedure for this purpose:
To have a deterministic threshold and more accurate filter on data, It is better to calcula...
How to create a drop-down list?
...electedListener with this.
You can add a strings list from xml
There is an appCompat version of this view.
More information:
This is the basics but there is more to be self taught with experimentation.
https://developer.android.com/guide/topics/ui/controls/spinner.html
...
Facebook Android Generate Key Hash
Trying to create an android app with Facebook integration, I've gotten to the part in the docs where you have to generate a key hash file, it specifies to run the following code
...
求助！关于拓展模块NotificationStyle的demo运行时报错的问题 - App Invent...
...ificationStyle.html
结果无论点什么按键都会报错：
edu.mit.appinventor.aicompanion3: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent. Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if so...