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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
... Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use:
28 A...
How to get overall CPU usage (e.g. 57%) on Linux [closed]
I am wondering how you can get the system CPU usage and present it in percent using bash, for example.
5 Answers
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How can I visualize per-character differences in a unified diff file?
Say I get a patch created with git format-patch . The file is basically a unified diff with some metadata. If I open the file in Vim, I can see which lines have been modified, but I cannot see which characters in the changed lines differ. Does anyone know a way (in Vim, or some other free softwar...
How to prevent column break within an element?
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The correct way to do this is with the break-inside CSS property:
.x li {
break-inside: avoid-column;
}
Unfortunately, as of October 2019, this is not supported in Firefox but it is supported by every other major browser. With Chrome, I was able to use the above code, but I...
Setting Objects to Null/Nothing after use in .NET
...correct, there is no need to set objects to null after use. If an object implements IDisposable, just make sure you call IDisposable.Dispose() when you're done with that object (wrapped in a try..finally, or, a using() block). But even if you don't remember to call Dispose(), the finaliser method on...
Get the length of a String
How do you get the length of a String ? For example, I have a variable defined like:
41 Answers
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Emacs, switch to previous window
...hat'd be C-- C-x o
In other words, C-x o with an argument of -1. You can specify how many windows to move by inserting a numeric argument between C-u and the command, as in C-u 2 C-x o. (C-- is a shortcut for C-u - 1)
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Is it possible to use 'else' in a list comprehension? [duplicate]
Here is the code I was trying to turn into a list comprehension:
6 Answers
6
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Copy folder recursively, excluding some folders
I am trying to write a simple bash script that will copy the entire contents of a folder including hidden files and folders into another folder, but I want to exclude certain specific folders. How could I achieve this?
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Programmatically obtain the Android API level of a device?
How can I find out which API level my device is using?
7 Answers
7
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