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How can I determine whether a Java class is abstract by reflection
I am interating through classes in a Jar file and wish to find those which are not abstract. I can solve this by instantiating the classes and trapping InstantiationException but that has a performance hit as some classes have heavy startup. I can't find anything obviously like isAbstract() in the C...
Do Swift-based applications work on OS X 10.9/iOS 7 and lower?
...n, just adding a button programmatically. My application contains only two files, AppDelegate.swift and ViewController.swift.
So if you are not using any new APIs added as part of the iOS 8 SDK or some Swift specific APIs (corresponding API is not available for Objective-C) your application will se...
Renew Provisioning Profile
Just got a notice that the provisioning profile for one of my apps is about to expire. Is there some way I can renew the existing one or must I recreate a new one?
...
Android: What is android.R.id.content used for?
... in this rootview.
As of version 19, android.R.id.content is defined in a file: auto_complete_list.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/content"
android:orientation="vertical"
android:layout_width="match_parent"
androi...
In Laravel, the best way to pass different types of flash messages in the session
...le messages and with different types.
Follow these steps below:
Create a file: "app/Components/FlashMessages.php"
namespace App\Components;
trait FlashMessages
{
protected static function message($level = 'info', $message = null)
{
if (session()->has('messages')) {
$mess...
How do I kill background processes / jobs when my shell script exits?
... @user1431317 but you could redirect the output of jobs -p to a temporary file and read it from there for kill.
– jarno
Aug 22 at 5:39
|
sh...
Nginx location priority
...s.
Regular expressions, in the order they are defined in the configuration file.
If #3 yielded a match, that result is used. Otherwise, the match from #2 is used.
Example from the documentation:
location = / {
# matches the query / only.
[ configuration A ]
}
location / {
# matches any q...
How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...starts with substr. The functions strncmp and strlen are in the C
header file <string.h>
(originally posted by Yaseen Rauf here, markup added)
For a case-insensitive comparison, use strnicmp instead of strncmp.
This is the C way to do it, for C++ strings you can use the same function lik...
JavaScript for…in vs for
... @Nosredna: There's an issue about order of iteration for Chrome, filed by none other than John Resig, that is marked as WontFix. code.google.com/p/chromium/issues/detail?id=883 . Even before chrome, the order of iteration was not the same across browsers if you remove and then add a proper...
When should I release objects in -(void)viewDidUnload rather than in -dealloc?
...
[self createManyViewsAndAddThemToSelfDotView];
}
in addition, a nib file may create a button and append it to the view controller's view.
On iPhone OS 2.2, when -didReceiveMemoryWarning was invoked from the system, you had to release something to free up memory. You could release the whole v...