The initializer used is `initWithCoder:`

    - (id)initWithCoder:(NSCoder *)decoder


Then afterwards you will also get an `awakeFromNib` message.

It is the `- (id)initWithCoder:(NSCoder *)decoder`

So if you have to do a custom init, let&#39;s say using a custom Pager Controller you have to do there like 


        - (id)initWithCoder:(NSCoder *)decoder {
            
            self = [super initWithCoder:decoder];
            return [self initWithViewControllers:@[self.playerViewController, self.categoriesViewController]
                      andTitles:@[@&quot;Player&quot;,@&quot;Categories&quot;]];
        }

    try {
    	$db = new PDO(&quot;mysql:host=&quot;.HOST.&quot;;dbname=&quot;.DB, USER, PW);
    	$st = $db-&gt;prepare(&quot;SELECT * FROM c6ode&quot;);
    }
    catch (PDOException $e){
    	echo $e-&gt;getMessage();
    }

How can I check the mysql error for the query in above case? 

How to view query error in PDO PHP

I am running into [several problems](https://stackoverflow.com/questions/8756459/is-there-any-plugin-way-to-manage-multiple-projects-in-vim) because vim&#39;s tabs are, for the lack of a better term, god awful. I want to start using multiple Gnome tabs instead, each with a different instance of vim. Everything should work fine, however, only the system buffer `+` can be used to share text. This makes all the commands two key strokes longer:

&lt;kbd&gt;y&lt;/kbd&gt; &lt;kbd&gt;y&lt;/kbd&gt; becomes &lt;kbd&gt;&quot;&lt;/kbd&gt;  &lt;kbd&gt;+&lt;/kbd&gt;  &lt;kbd&gt;y&lt;/kbd&gt;  &lt;kbd&gt;y&lt;/kbd&gt;

&lt;kbd&gt;y&lt;/kbd&gt; &lt;kbd&gt;w&lt;/kbd&gt; becomes &lt;kbd&gt;&quot;&lt;/kbd&gt;  &lt;kbd&gt;+&lt;/kbd&gt;  &lt;kbd&gt;y&lt;/kbd&gt;  &lt;kbd&gt;w&lt;/kbd&gt;

&lt;kbd&gt;d&lt;/kbd&gt; &lt;kbd&gt;&#39;&lt;/kbd&gt; &lt;kbd&gt;k&lt;/kbd&gt; becomes &lt;kbd&gt;&quot;&lt;/kbd&gt;  &lt;kbd&gt;+&lt;/kbd&gt;  &lt;kbd&gt;d&lt;/kbd&gt; &lt;kbd&gt;&#39;&lt;/kbd&gt; &lt;kbd&gt;k&lt;/kbd&gt;

This is especially so when one considers that a simply yank/paste operation like so

&lt;kbd&gt;y&lt;/kbd&gt; &lt;kbd&gt;y&lt;/kbd&gt; &lt;kbd&gt;p&lt;/kbd&gt; 

becomes 

&lt;kbd&gt;&quot;&lt;/kbd&gt;  &lt;kbd&gt;+&lt;/kbd&gt;  &lt;kbd&gt;y&lt;/kbd&gt;  &lt;kbd&gt;y&lt;/kbd&gt;  &lt;kbd&gt;&quot;&lt;/kbd&gt;  &lt;kbd&gt;+&lt;/kbd&gt;  &lt;kbd&gt;p&lt;/kbd&gt;

Is there anyway to instruct vim to always use the system clipboard(s)?

**EDIT** [see Here](https://stackoverflow.com/questions/8756459/is-there-any-plugin-way-to-manage-multiple-projects-in-vim) for more information on using multiple instances of vim across Gnome Terminal Tabs

Can vim use the system clipboard(s) by default?

Which `init` method is called by the storyboard for `UIViewControllers` added to the storyboard?

iOS5 Storyboard UIViewController which init method is called by the storyboard?

<p>Which <code>init</code> method is called by the storyboard for <code>UIViewControllers</code> added to the storyboard?</p>


Is there a way to get the current view controller from the AppDelegate? I know there is rootViewController, but that&#39;s not what I&#39;m looking for.

Current view controller from AppDelegate?

I am trying to make a mechanism to drill down a file / folder list. The idea is to show the same file list view controller every time the user selects a folder, and show a file detail view controller if he/she selects a file.

So far, I have created a segue from the file list view controller to the file detail view controller, and a segue from the file list table view cell to the the file list table view controller:

[![enter image description here][1]][1]

The issue with this is that as soon as the user taps the cell, the segue is executed. I would like to remove the segue from the table view cell and make one from the file list view controller to itself. That way, I could trigger the right segue programmatically when the user tapped the cell.

So, my question is: Is it possible to create a segue from a view controller to itself in Interface Builder?

  [1]: http://i.stack.imgur.com/hmEML.png

Storyboard Segue From View Controller to Itself

I am currently making an app that will have multiple timers, which are basically all the same. 

I want to create a custom class that uses all of the code for the timers as well as the layout/animations, so I can have 5 identical timers that operate independently of each other. 

I created the layout using IB (xcode 4.2) and all the code for the timers is currently just in the viewcontroller class.

I am having difficulty wrapping my brain around how to encapsulate everything into a custom class and then add it to the viewcontroller, any help would be much appreciated.

How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?

I have a view controller hierarchy and the top-most controller is displayed as a modal and would like to know how to display the navigation bar when using 

    &#39;UIViewController:presentViewController:viewControllerToPresent:animated:completion&#39;

The docs for &#39;presentViewController:animated:completion:&#39; note: 

&gt; &#39;On iPhone and iPod touch, the presented view is always full screen.
&gt; On iPad, the presentation depends on the value in the
&gt; modalPresentationStyle property.&#39;

For &#39;modalPresentationStyle&#39;, the docs say:
&gt; The presentation style determines how a modally presented view controller is displayed onscreen. On iPhone and iPod touch, modal view controllers are always presented full-screen, but on iPad there are several different presentation options. 

Is there way to ensure that the navigation bar is visible below the status bar once the view control displays itself? Should I interpret the doc as, you don&#39;t get any options of iPhone/iPod and only on iPad?

Previously, I was using `&#39;UIViewController:presentModalViewController:animated&#39;` which worked fine, but since iOS 5.0, the API has been deprecated so I&#39;m switching over to the new one.

Visually, what I&#39;m looking to do is have the new controller slide in from the bottom of the screen, just like the old API used to do.

[updating with code]:

    // My root level view:
    UIViewController *vc = [[RootViewController alloc] 
                                initWithNibName:nil 
                                bundle:[NSBundle mainBundle]];
    navController = [[UINavigationController alloc] initWithRootViewController:vc];        
    ....

    // Within the RootViewController, Second view controller is created and added 
    // to the hierarchy. It is this view controller that is responsible for 
    // displaying the DetailView:
    SecondTierViewController *t2controller = [[SecondTierViewController alloc] 
                                               initWithNibName:nil
                                               bundle:[NSBundle mainBundle]];
    
    [self.navigationController pushViewController:t2controller animated:YES];

    // Created by SecondTierViewController 
    DetailViewController *controller = [[DetailViewController alloc] initWithNibName:nil                                                                                 
                                            bundle:[NSBundle mainBundle]];  
  
    controller.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    controller.modalPresentationStyle = UIModalPresentationCurrentContext;

    [self.navigationController presentViewController:controller 
                                            animated:YES 
                                            completion:nil];

presentViewController and displaying navigation bar

im having trouble overriding the initialization method for my CustomViewController thats designed in my Storyboard.

now im doing (in my mainViewController):

    self.customViewController = [[UIStoryboard storyboardWithName:@&quot;MainStoryboard_iPhone&quot; bundle:nil] instantiateViewControllerWithIdentifier:@&quot;CustomVC&quot;];
    self.customViewController.myObject = someObject;

and i have in viewDidLoad (CustomViewController)

        [self.label setText:self.myObject.someString];

This works ok.

But, is it the correct way? Should i add a custom init method (or override) to my CustomViewController ? Like initWithObject: ? I dont know how to call my custom init method instead of `UIStoryboard instantiateViewControllerWithIdentifier:`, and im not getting calls to `init` nor `initWithNibName`.

Maybe i should use: `- (id)initWithCoder:(NSCoder *)decoder`. 

Please give me some advice!


Thank you!

viewController custom init method with storyboard

There are two new memory management attributes for properties introduced by ARC, `strong` and `weak`.

Apart from `copy`, which is obviously something completely different, **are there any differences between `strong` vs `retain` and `weak` vs `assign`?**

From my understanding, the only difference here is that `weak` will assign `nil` to the pointer, while `assign` won&#39;t, which means the program will crash when I send a message to the pointer once it&#39;s been released. But if I use `weak`, this won&#39;t ever happen, because message send to `nil` won&#39;t do anything.

I don&#39;t know about any differences between `strong` and `retain`.

**Is there any reason why should I use `assign` and `retain` in new projects, or are the kind of being deprecated?**

Objective-C ARC: strong vs retain and weak vs assign

I am trying to make a new line in Xcode 4.2 UITextView, and when I do alt+return, it goes to the next line, but does not show up when built and ran.

How to make a new line in UITextView in nib/storyboard?

*(Using iOS 5 and Xcode 4.2)*

I have an MKMapView and want to draw a circle of 1000m radius around the user location.

On the surface it would seem that implementing the [mapView:viewForAnnotation:][1]  map view delegate method, and adding a custom MKAnnotationView for the users location, would be a perfect solution. It would look something like this:

    - (MKAnnotationView *)mapView:(MKMapView *)mapView
                viewForAnnotation:(id &lt;MKAnnotation&gt;)annotation
    {
        // If it&#39;s the user location, return my custom MKAnnotationView.
        if ([annotation isKindOfClass:[MKUserLocation class]]) {
            return myCustomAnnotationView;
        } else {
            return nil;
        }
    }

However annotations on the map don&#39;t scale when you zoom in and out of the map. 

So I tried adding an overlay (because overlays scale with the map), using the [MKCircle][2] class and setting its co-ordinates to the latest co-ordinates from my locationManger/map view delegate. However as the [coordinate property][3] of MKCircle is readonly, I&#39;m having to remove the overlay then add a new one each time the user moves. Causing a noticeable flicker as it happens.

Is there any way to make an annotation scale seamlessly as the map view is scaled in and out? Or is there a good way to make an overlay move seamlessly with changes in the users location?

I would be very grateful for your help :)


  [1]: http://developer.apple.com/library/ios/#documentation/MapKit/Reference/MKMapViewDelegate_Protocol/MKMapViewDelegate/MKMapViewDelegate.html#//apple_ref/doc/uid/TP40008204
  [2]: http://developer.apple.com/library/IOs/#documentation/MapKit/Reference/MKCircle_class/Reference/Reference.html
  [3]: http://developer.apple.com/library/IOs/#documentation/MapKit/Reference/MKCircle_class/Reference/Reference.html

Draw a circle of 1000m radius around users location in MKMapView

Is it possible to use the autoshrink property in conjunction on multiple lines on a `UILabel`? for example, the large text size possible on 2 available lines.

Autoshrink on a UILabel with multiple lines

I need to find the pixel-frame for different ranges in a textview. I&#39;m using the `- (CGRect)firstRectForRange:(UITextRange *)range;` to do it. However I can&#39;t find out how to actually create a `UITextRange`.

Basically this is what I&#39;m looking for:

    - (CGRect)frameOfTextRange:(NSRange)range inTextView:(UITextView *)textView {
    
        UITextRange*range2 = [UITextRange rangeWithNSRange:range]; //DOES NOT EXIST 
        CGRect rect = [textView firstRectForRange:range2];
        return rect;
    }
Apple says one has to subclass `UITextRange` and `UITextPosition` in order to adopt the `UITextInput` protocol. I don&#39;t do that, but I tried anyway, following the doc&#39;s example code and passing the subclass to `firstRectForRange` which resulted in crashing.

If there is a easier way of adding different colored `UILables` to a textview, please tell me. I have tried using UIWebView with `content editable` set to TRUE, but I&#39;m not fond of communicating with JS, and coloring is the only thing I need.

Thanks in advance.


Create UITextRange from NSRange

I want to change below code with storyboard with Xcode 4.2.

    UIViewController * example     = [[ExampleViewController alloc] initWithNibName:@&quot;ExampleViewController&quot; bundle:nil];

Now ExampleViewController.xib file exist.
but I want to make it with storyboard.
please help me.
(I&#39;m not good at English. Sorry)

How do I change &quot;initwithNibName&quot; in storyboard?

I&#39;m looking for alternative ways to push view controllers instantiated on storyboard programmatically.
I&#39;ve actually found two ways, that I use to go to the next view, but also to go back to the previous:

 1. using `pushViewController`:


        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@&quot;MainStoryboard&quot; bundle: nil]; 
        LocationWebView *lvc = [storyboard instantiateViewControllerWithIdentifier:@&quot;LocationWebView&quot;];
        [self.navigationController pushViewController:lvc animated:YES];



 2. performing `Segue` programmatically:

        [self performSegueWithIdentifier: @&quot;SongSegue&quot; sender: self];


Do you have some hints on alternatives and on the best way this operation should be performed? Note that I&#39;m not referring to modal views.

Alternative ways to push view controllers with storyboard programmatically

What are the **main differences** between using Storyboards and xib files.

  Specifically,
 what are the **advantages or disadvantages** of using a Storyboard?

  Unfortunately, despite doing quite a bit of research, all I&#39;ve been able to find on Storyboards are simple tutorials that show you how to set up a Storyboard, instead of concrete information explaining what they are.

What are the benefits of using Storyboards instead of xib files in iOS programming?

I have a font added to my iOS project.  It&#39;s in the project and copied when the project builds.  It appears to be a valid font and will show up if I list all fonts on the device through the app.  I have the plist set up properly to include the font.  I can&#39;t seem to get the find to show up to use it in my text controls, buttons, etc in Xcode 4.2&#39;s storyboard section.  Further it doesn&#39;t appear to allow me to type the font name, it forces me to use the font dialog.  I attempted to install this font in the system as well, but cannot seem to get it to show in this list.  Do I need to do this in code only or can I do this through the storyboard interface?

Note that I can get this working in code, but it would be much more convenient to do this via the storyboard.

Content Type	Original Author	Original Content on Stackoverflow
Question	Alex Stone	View Question on Stackoverflow
Solution 1 - Uiviewcontroller	Firoze Lafeer	View Answer on Stackoverflow
Solution 2 - Uiviewcontroller	agilityvision	View Answer on Stackoverflow
Solution 3 - Uiviewcontroller	loretoparisi	View Answer on Stackoverflow

iOS5 Storyboard UIViewController which init method is called by the storyboard?

Uiviewcontroller Problem Overview

Uiviewcontroller Solutions

Solution 1 - Uiviewcontroller

Solution 2 - Uiviewcontroller

Solution 3 - Uiviewcontroller

Can vim use the system clipboard(s) by default?

How to view query error in PDO PHP

Attributions