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How to send emails from my Android application?
... ex) {
Toast.makeText(MyActivity.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
Otherwise you'll have to write your own client.
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Profiling Django
...at queries are executed on each page and how much time they take. It's a really useful, powerful and easy to use tool.
Also, read recommendations about Django performance in Database access optimization from the documentation.
And Django performance tips by
Jacob Kaplan-Moss.
...
Should Javadoc comments be added to the implementation?
...methods that are implementation only (not overrides), sure, why not, especially if they are public.
If you have an overriding situation and you are going to replicate any text, then definitely not. Replication is a surefire way of causing discrepancies. As a result, users would have a different und...
Windows API Code Pack: Where is it? [closed]
...w.nuget.org/packages/WindowsAPICodePack-ShellExtensions
As usual, to install them:
Install-Package WindowsAPICodePack-Core
Install-Package WindowsAPICodePack-ExtendedLinguisticServices
Install-Package WindowsAPICodePack-Sensors
Install-Package WindowsAPICodePack-Shell
Install-Package WindowsAPICo...
Is git-svn dcommit after merging in git dangerous?
...
Actually, I found an even better way with the --no-ff option on git merge.
All this squash technic I used before is no longer required.
My new workflow is now as follows:
I have a "master" branch that is the only branch that...
React JSX: selecting “selected” on selected option
...ect>
For more info, see the React select tag doc.
Also, React automatically understands booleans for this purpose, so you can simply write (note: not recommended)
<option value={option.value} selected={optionsState == option.value}>{option.label}</option>
and it will output 'selecte...
Moving Files into a Real Folder in Xcode
...proach for 2017 (Xcode 6, 7, 8, and sometimes 9, since it does it automagically some of the time):
If you're moving a bunch of files into a new folder and are keeping the child hierarchy, it's actually a lot easier than moving each file individually:
Create new groups in the Xcode folder tree and...
Getting a list of values from a list of dicts
... simple at first glance, because find returns match objects, which include all kinds of things besides just the matched value, such as a path directly to each item. But for more complex expressions, being able to specify a path like '*.[*].value' instead of a comprehension clause for each * can make...
How does one capture a Mac's command key via JavaScript?
...
EDIT: As of 2019, e.metaKey is supported on all major browsers as per the MDN.
Note that on Windows, although the ⊞ Windows key is considered to be the "meta" key, it is not going to be captured by browsers as such.
This is only for the command key on MacOS/keyboar...
Why is the tag deprecated in HTML?
...n property to center. This guarantees that the element will be centered in all modern browsers.
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