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How accurately should I store latitude and longitude?
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For latitude, use (8,6) (or (6,4) to save save a byte (in MySQL).
– Rick James
May 2 '18 at 4:09
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What are Unwind segues for and how do you use them?
...ew controller.
Imagine you have something a MyNavController with A as its root view controller. Now you use a push segue to B. Now the navigation controller has A and B in its viewControllers array, and B is visible. Now you present C modally.
With unwind segues, you could now unwind "back" from C...
Why does Python use 'magic methods'?
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AFAIK, len is special in this respect and has historical roots.
Here's a quote from the FAQ:
Why does Python use methods for some
functionality (e.g. list.index()) but
functions for other (e.g. len(list))?
The major reason is history. Functions
were used for those o...
Build Android Studio app via command line
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Android Studio automatically creates a Gradle wrapper in the root of your project, which is how it invokes Gradle. The wrapper is basically a script that calls through to the actual Gradle binary and allows you to keep Gradle up to date, which makes using version control easier. To run...
Execute a terminal command from a Cocoa app
...n use this method like this:
NSString *output = runCommand(@"ps -A | grep mysql");
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Combining multiple git repositories
...thesis
|_(your thesis...)
Then create a git repository in the root directory, pull everything into it and remove the old repositories:
$ cd phd
$ git init
$ git pull code
$ rm -rf code/code
$ rm -rf code/.git
$ git pull figures --allow-unrelated-histories
$ rm -rf figures/figures
$ r...
How do I detect if software keyboard is visible on Android Device or not?
...oolean opened) {
print("keyboard " + opened);
}
// ContentView is the root view of the layout of this activity/fragment
contentView.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
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Service Temporarily Unavailable Magento?
...d if so delete it.
Magento 1.x : maintenance.flag file is in : magento root directory
Magento 2.x : maintenance.flag file is in : var folder
When Magento is performing certain tasks it temporarily creates this file. Magento checks for its existence and if it's there will send users to ...
Delete all tags from a Git repository
... This is too slow, below solution is better.
– Root Fool
Feb 27 at 19:58
If you need to enter passphrase for com...
How to integrate nodeJS + Socket.IO and PHP?
... just have an author and message, and when you press send it is saved in a mysql database. The idea is to send real time updates, and have a real conversation. ;) We'll use nodeJS for that.
I won't talk about PHP code, it is really simple and not interesting here; what I want to show you is how to ...