Set the parent view&#39;s `clipsToBounds` property to `YES`.

Programmatically: `view.clipsToBounds=YES;`

Through interface builder: `Click the view-&gt;Attributes Inspector-&gt;Check Clip to Bounds`

I think you want to enable &quot;clip subviews&quot; on the parent view.

The documentation says that the `clipsToBounds` property of UIView will clip the drawing to the bounds, or more precisely that the subview can&#39;t draw outside of the bounds of the superview.

for more read the SO post 

https://stackoverflow.com/questions/820919/uiview-clipstobounds-property-does-it-improve-performance

Indeed, from the storyboard, tick the parent UIView&#39;s &quot;Clip Subviews&quot; checkbox. This is how it worked for me.

I have an array: 

    [13] =&gt; Array
            (
                [0] =&gt; joe
                [1] =&gt; 0
            
        [14] =&gt; Array
            (
                [0] =&gt; bob
                [1] =&gt; 0
            )
    
        [15] =&gt; Array
            (
                [0] =&gt; sue
                [1] =&gt; 0
            )
    
        [16] =&gt; Array
            (
                [0] =&gt; john
                [1] =&gt; 0
            )
    
        [17] =&gt; Array
            (
                [0] =&gt; harry
                [1] =&gt; 0
            )
    
        [18] =&gt; Array
            (
                [0] =&gt; larry
                [1] =&gt; 0
            )

How can I get the last 3 elements while preserving the keys? (the number of elements in the array may vary, so I cannot simply slice after the 2nd element)

So the output would be:

      [16] =&gt; Array
            (
                [0] =&gt; john
                [1] =&gt; 0
            )
    
        [17] =&gt; Array
            (
                [0] =&gt; harry
                [1] =&gt; 0
            )
    
        [18] =&gt; Array
            (
                [0] =&gt; larry
                [1] =&gt; 0
            )




PHP get the last 3 elements of an associative array while preserving the keys?

In Firefox **3**, I was able to write a custom confirmation popup with:

    window.onbeforeunload = function() {
       if (someCondition) {
          return &#39;Your stream will be turned off&#39;;
       }
    }

Now in Firefox **4**, it does not show my custom message. The default message that it provides is not even accurate to what my application does.

![firefox 4 confirm][1]

Can this default message be overridden?


  [1]: http://i.stack.imgur.com/4gaoU.png

Firefox 4 onBeforeUnload custom message

I have a view, lets say 100x100. And it has set of uiviews as subviews: let say 30x30

If a subview has top-left coordinate: (90,90) - I expect to see only part of this subview. But I still see entire area - even if it is out of parents bounds

The question is how to make uiview to show only those parts of subview, which are in original bounds?

thank you

UIView hide children views when out of bounds

I have a view, lets say 100x100. And it has set of uiviews as subviews: let say 30x30
If a subview has top-left coordinate: (90,90) - I expect to see only part of this subview. But I still see entire area - even if it is out of parents bounds
The question is how to make uiview to show only those parts of subview, which are in original bounds?
thank you

can someone tell me the difference in declare an mutable array with:

    NSMutableArray *array = [NSMutableArray array];

and

    NSMutableArray *array = [[NSMutableArray alloc] init];

Because in the beginning I was declaring all my arrays with alloc, and if in the end of a certain function I returned the array created with alloc, I had to autorelease that array, because of memory leak problems.

Now using the first declaration I don&#39;t need to release anything.

Thanks

Difference between [NSMutableArray array] vs [[NSMutableArray alloc] init]

I am testing my iPhone application on an iOS 3.1.3 iPhone.  I am selecting/capturing an image using a `UIImagePickerController`:

    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    [imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera];
    [imagePicker setDelegate:self];
    [self.navigationController presentModalViewController:imagePicker animated:YES];
    [imagePicker release];



    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
        self.image = [info objectForKey:UIImagePickerControllerOriginalImage];
        imageView.image = self.image;
        [self.navigationController dismissModalViewControllerAnimated:YES];
        submitButton.enabled = YES;
    }


I then at some point send it to my web server using the ASI classes:

    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:@&quot;http://example.com/myscript.php&quot;]];
    [request setDelegate:self];
    [request setStringEncoding:NSUTF8StringEncoding];
    [request setShouldContinueWhenAppEntersBackground:YES];
    //other post keys/values
    [request setFile:UIImageJPEGRepresentation(self.image, 100.0f) withFileName:[NSString stringWithFormat:@&quot;%d.jpg&quot;, [[NSDate date] timeIntervalSinceNow]] andContentType:@&quot;image/jpg&quot; forKey:@&quot;imageFile&quot;];
    [request startAsynchronous];


the problem:
when i take a picture with the iphone while holding it landscape, the image gets uploaded to the server and it viewed like you would expect.  when taking a picture holding the phone in portrait, the image is uploaded and viewed as it had been rotated 90 degrees.

my application is set to only work in portrait modes(upsidedown and regular).

How can i make the image always show the correct orientation after uploading?

the image appears to be correct as displayed in an UIImageView(directly after taking the picture), but viewing on the server says otherwise.

iOS UIImagePickerController result image orientation after upload

&gt; **Possible Duplicate:**  
&gt; [SnowLeopard Xcode warning: &amp;ldquo;format not a string literal and no format arguments&amp;rdquo;](https://stackoverflow.com/questions/1677824/snowleopard-xcode-warning-format-not-a-string-literal-and-no-format-arguments)  

&lt;!-- End of automatically inserted text --&gt;

I am getting the following issue for this line of code.

&quot;Format string is not a string literal (potentially insecure)&quot;

    NSLog([NSString stringWithFormat:@&quot;%@&quot;, entered]);

Any suggestions?

Issue With Code: Format string is not a string literal

Is it possible for a UIButton (or any other control for that matter) to receive touch events when the UIButton&#39;s frame lies outside of it&#39;s parent&#39;s frame? Cause when I try this, my UIButton doesn&#39;t seem to be able to receive any events. How do I work around this?

Interaction beyond bounds of UIView

Let&#39;s say we have an application with a deployment target set to 3.0 and we want to raise the deployment target to 3.2.  Normally, the App Store won&#39;t let the App be installed on devices with an IOS version less then this, but what about devices which already had the App installed prior to the update?  Will they see the update but won&#39;t be able to install, will they just not see the update or, heavens forbid, will be able to install and the app just won&#39;t start?

I searched everywhere for this, but I can&#39;t find anything about raising the minimum OS version for an app update.

Thanks!

Raising minimum iOS Deployment Target Version for App Update

There are a lot of resources about how to display a PDF in an App&#39;s `UIView`. What I am working on now is to create a PDF from `UIViews`. 

For example, I have a `UIView`, with subviews like Textviews, `UILabels`, `UIImages`, so how can I convert a **big** `UIView` as a whole including all its subviews and subsubviews to a PDF?

I have checked [Apple&#39;s iOS reference](https://developer.apple.com/library/archive/documentation/2DDrawing/Conceptual/DrawingPrintingiOS/GeneratingPDF/GeneratingPDF.html). However, it only talks about writing pieces of text/image to a PDF file.

The problem I am facing is that the content I want to write to a file as PDF is a lot. If I write them to the PDF piece by piece, it is going to be huge work to do.
That&#39;s why I am looking for a way to write `UIViews` to PDFs or even bitmaps.

I have tried the source code I copied from other Q/A within Stack Overflow. But it only gives me a blank PDF with the `UIView` bounds size.

    -(void)createPDFfromUIView:(UIView*)aView saveToDocumentsWithFileName:(NSString*)aFilename
    {
        // Creates a mutable data object for updating with binary data, like a byte array
        NSMutableData *pdfData = [NSMutableData data];
    	
        // Points the pdf converter to the mutable data object and to the UIView to be converted
        UIGraphicsBeginPDFContextToData(pdfData, aView.bounds, nil);
        UIGraphicsBeginPDFPage();
    	
        // draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData
        [aView drawRect:aView.bounds];
    	
        // remove PDF rendering context
        UIGraphicsEndPDFContext();
    	
        // Retrieves the document directories from the iOS device
        NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);
    	
        NSString* documentDirectory = [documentDirectories objectAtIndex:0];
        NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:aFilename];
    	
        // instructs the mutable data object to write its context to a file on disk
        [pdfData writeToFile:documentDirectoryFilename atomically:YES];
        NSLog(@&quot;documentDirectoryFileName: %@&quot;,documentDirectoryFilename);
    }


How to Convert UIView to PDF within iOS?

Is there any way to tell if a UIView is in the middle of an animation?  When I print out the view object while it is moving I notice that there is an &quot;animations&quot; entry:

    search bar should end editing: &lt;UISearchBar: 0x2e6240; frame = (0 0; 320 88); text = &#39;&#39;; autoresize = W+BM; animations = { position=&lt;CABasicAnimation: 0x6a69c40&gt;; bounds=&lt;CABasicAnimation: 0x6a6d4d0&gt;; }; layer = &lt;CALayer: 0x2e6e00&gt;&gt;

When the animation has stopped and I print the view, the &quot;animations&quot; entry is now gone:

    search bar should end editing: &lt;UISearchBar: 0x2e6240; frame = (0 0; 320 88); text = &#39;&#39;; autoresize = W+BM; layer = &lt;CALayer: 0x2e6e00&gt;&gt;

Test whether a UIView is in the middle of animation

How do you get the current angle/rotation/radian a UIView has?

Get the current angle/rotation/radian for a UIView?

It appears that userInteractionEnabled=NO on a parent view will prevent user interaction on all subviews. Is this correct? Is there any way around this?

UIView -- &quot;user interaction enabled&quot; false on parent but true on child?

If the `visibility` property of the style of an HTML element is set to `hidden`, is it still clickable?

When the `display` property is set to `none`, the element is not even part of the DOM tree, so that is not a problem. But I was wondering if a `hidden` element still responds to mouse events. 

CSS: Is a hidden object clickable?

I am trying to perform a backup/restore function for static properties of classes. I can get a list of all of the static properties and their values using the reflection objects `getStaticProperties()` method. This gets both `private` and `public static` properties and their values.

The problem is I do not seem to get the same result when trying to restore the properties with the reflection objects `setStaticPropertyValue($key, $value)` method. `private` and `protected` variables are not visible to this method as they are to `getStaticProperties()`. Seems inconsistent.

Is there any way to set a private/protected static property using reflection classes, or any other way for that matter?

**TRIED**

	class Foo {
		static public $test1 = 1;
		static protected $test2 = 2;
		
		public function test () {
			echo self::$test1 . &#39;&lt;br&gt;&#39;;
			echo self::$test2 . &#39;&lt;br&gt;&lt;br&gt;&#39;;
		}
		
		public function change () {
			self::$test1 = 3;
			self::$test2 = 4;
		}
	}

	$test = new foo();
	$test-&gt;test();
	
	// Backup
	$test2 = new ReflectionObject($test);
	$backup = $test2-&gt;getStaticProperties();
	
	$test-&gt;change();
	
	// Restore
	foreach ($backup as $key =&gt; $value) {
		$property = $test2-&gt;getProperty($key);
		$property-&gt;setAccessible(true);
		$test2-&gt;setStaticPropertyValue($key, $value);
	}
	
	$test-&gt;test();

Is there any way to set a private/protected static property using reflection classes?

HTML5 has a new global attribute, `hidden`, which can be used to hide content.   

&lt;!-- language: lang-html --&gt;

    &lt;article hidden&gt;
       &lt;h2&gt;Article #1&lt;/h2&gt;
       &lt;p&gt;Lorem ipsum ...&lt;/p&gt;
    &lt;/article&gt;

CSS has the `display:none` rule, which can also be used to hide content. 

    article { display:none; }

Visually, they are identical.  What is the difference semantically?  Computationally?

What guidelines should I consider on when to use one or the other?

TIA.

**EDIT**:  Based on @newtron&#39;s responses (below), I did more searching.  The `hidden` attribute was hotly contested last year and (apparently) barely made it into the HTML5 spec.  Some argued it was redundant and had no purpose.  From what I can tell, the final evaluation is this:  If I&#39;m targeting only web browsers, there is no difference.  (One page even asserted that web browsers used `display:none` to implement the hidden attribute.)  But if I&#39;m considering accessibility (e.g., perhaps I expect my content to be read by screen-readers), then there is a difference.  The CSS rule `display:none` might hide my content from web browsers, but a corresponding aria rule (e.g., `aria-hidden=&quot;false&quot;`) might try to read it.  Thus, I now agree that @newtron&#39;s answer is correct, though perhaps (arguably) not as clear as I might like.  Thanks @newtron for your help.

What is the difference between the hidden attribute (HTML5) and the display:none rule (CSS)?

I have few div&#39;s placed underneath each other and I&#39;m using css visibility to fade them in and out. The reason why I use visibility is so that the div&#39;s don&#39;t move place.

For fade In I&#39;m using: 

    $(&#39;.drop1&#39;).css({opacity: 0.0, visibility: &quot;visible&quot;}).animate({opacity: 1.0});

and for fade Out I&#39;m using:

    $(&#39;.drop1&#39;).css({opacity: 0.0, visibility: &quot;hidden&quot;}).animate({opacity: 1.0})}, 200);


The **FadeIn works**, but the **fadeOut doesn&#39;t work**.

Now, you may think that the problem is the last &#39;**,200**&#39;  but I will need to use that as a delay since the fadeout/visibility:hidden is on mouseleave event after 200ms.


So my question is: How can I do the visibility hidden with animation to act as a fadeOut. 

Thanks alot

jQuery css Visibility with animation

Why doesn&#39;t the textView become invisible?

Here is my layout xml:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;LinearLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;match_parent&quot;
        android:orientation=&quot;vertical&quot; &gt;
	
        &lt;TextView
	    android:id=&quot;@+id/tvRotate&quot;
	    android:layout_width=&quot;wrap_content&quot;
	    android:layout_height=&quot;wrap_content&quot;
	    android:text=&quot;Rotate Me&quot;
	/&gt;
    &lt;/LinearLayout&gt;

..and here is my activity:

	public class RotateMeActivity extends Activity
	{
		@Override
		public void onCreate(Bundle savedInstanceState) 
		{
			super.onCreate(savedInstanceState);
			setContentView(R.layout.main);
			TextView tvRotate = (TextView) findViewById(R.id.tvRotate);
			
			RotateAnimation r = new RotateAnimation(0, 180, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
			r.setDuration(0);
			r.setFillAfter(true);
			tvRotate.startAnimation(r);
			tvRotate.setVisibility(View.INVISIBLE);
		}
	}
	
My goal is to rotate a view and then be able to hide and show it in code by setting setVisibility. The following works, but setRotation is available only in API Level 11. I need a way to do it in API Level 10.

    tvRotate.setRotation(180);//instead of the RotateAnimation, only works in API Level 11
    tvRotate.setVisibility(View.INVISIBLE);
        




Content Type	Original Author	Original Content on Stackoverflow
Question	user349302	View Question on Stackoverflow
Solution 1 - Iphone	Vladimir	View Answer on Stackoverflow
Solution 2 - Iphone	jd.	View Answer on Stackoverflow
Solution 3 - Iphone	Jhaliya - Praveen Sharma	View Answer on Stackoverflow
Solution 4 - Iphone	Maria Stoica	View Answer on Stackoverflow

UIView hide children views when out of bounds

Iphone Problem Overview

Iphone Solutions

Solution 1 - Iphone

Solution 2 - Iphone

Solution 3 - Iphone

Solution 4 - Iphone

Firefox 4 onBeforeUnload custom message

PHP get the last 3 elements of an associative array while preserving the keys?

Attributions