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How can I check if a view is visible or not in Android? [duplicate]
I set visibility to invisible like this on Android:
4 Answers
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How to Vertical align elements in a div?
I have a div with two images and an h1 . All of them need to be vertically aligned within the div, next to each other.
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Change IPython/Jupyter notebook working directory
When I open a Jupyter notebook (formerly IPython) it defaults to C:\Users\USERNAME .
31 Answers
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Understanding REST: Verbs, error codes, and authentication
...an be helpful towards your RESTful venture.
Point 1: Am I understanding it right?
You understood right. That is a correct representation of a RESTful architecture. You may find the following matrix from Wikipedia very helpful in defining your nouns and verbs:
When dealing with a Collection UR...
How to fix 'android.os.NetworkOnMainThreadException'?
...s thrown when an application attempts to perform a networking operation on its main thread. Run your code in AsyncTask:
class RetrieveFeedTask extends AsyncTask<String, Void, RSSFeed> {
private Exception exception;
protected RSSFeed doInBackground(String... urls) {
try {
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Android: How to enable/disable option menu item on button click?
I can easily do it when I am using onCreateOptionsMenu or onOptionsItemSelected methods.
12 Answers
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Is it a bad practice to use negative margins in Android?
...r been officially supported and won't be supported by ConstraintLayout.
It is easy to work around this limitation though.
Add an helper view (height 0dp, width constrained to parent) at the bottom of your base view, at the bottom add the margin you want.
Then position your view below this one,...
What is the most compatible way to install python modules on a Mac?
I'm starting to learn python and loving it. I work on a Mac mainly as well as Linux. I'm finding that on Linux (Ubuntu 9.04 mostly) when I install a python module using apt-get it works fine. I can import it with no trouble.
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Is String.Contains() faster than String.IndexOf()?
...e a string buffer of about 2000 characters and need to check the buffer if it contains a specific string.
Will do the check in a ASP.NET 2.0 webapp for every webrequest.
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How to read and write into file using JavaScript?
Can anybody give some sample code to read and write a file using JavaScript?
17 Answers
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