Works for 2020.03.16

**8 steps in detail**

Firstly, your products should be approved.


**1**

[![0][1]][1]

**2**

[![1][2]][2]

**3**

[![2][3]][3]

**4**

[![3][4]][4]

**5**


[![4][5]][5]

**6**

 [![5][6]][6]


**7**


[![6][7]][7]

**8**

[![7][8]][8]


**And you got**

[![8][9]][9]


After several hours, it works


  [1]: https://i.stack.imgur.com/hMJqJ.png
  [2]: https://i.stack.imgur.com/7Eyfv.png
  [3]: https://i.stack.imgur.com/UPB9P.png
  [4]: https://i.stack.imgur.com/KOVBF.png
  [5]: https://i.stack.imgur.com/vCRwN.png
  [6]: https://i.stack.imgur.com/5TFQ4.png
  [7]: https://i.stack.imgur.com/X0nQy.png
  [8]: https://i.stack.imgur.com/78lSD.png
  [9]: https://i.stack.imgur.com/5nwh6.png

Five years later - Apple has changed the way you offer free trial for users.
source: https://itunespartner.apple.com/en/apps/news/4406427

From now it&#39;s under &quot;introductory price&quot;, see here for more details:
https://help.apple.com/itunes-connect/developer/#/deve1d49254f
[![Select Set Up Introductory Price][1]][1]


Update 3/2020: now it&#39;s called &quot;Create Introductory Offer&quot;
[![update for ][2]][2]


  [1]: https://i.stack.imgur.com/rz2AH.png
  [2]: https://i.stack.imgur.com/9kvV0.png

As of **October 2019**, follow this :

In iTunes, Select My apps --&gt; features --&gt; In-app purchases 

 1. Click on Product ID
 2. Subscription Prices
 3. Create introductory offer
 4. Select territory 
 5. Choose start and End date. Select today&#39;s date and **No end date if it&#39;s Free Trial.**
 6. Select type (Trial) and duration of trial.

During receipt validation in server side, you can check for *is_trial_period* to determine if it is in Trial.

https://developer.apple.com/documentation/storekit/in-app_purchase/implementing_introductory_offers_in_your_app

After you log in to iTunesConnect...

* Select Manage Your Apps.

![Manage Your Apps][1]

* Select your app.
* Select Manage In-App Purchases.

![Manage In-App Purchases][2]

* Select the subscription family you want to add a free trial to.
* Select a duration.

![Durations][3]

* Set Offer a free trial? to Yes.
* Select free trial duration.

![enter image description here][4]


  [1]: http://i.stack.imgur.com/mJZ6X.png
  [2]: http://i.stack.imgur.com/Qqpi3.png
  [3]: http://i.stack.imgur.com/cuxcz.png
  [4]: http://i.stack.imgur.com/NYYsw.png

In iTunes Connect

App &gt; Manage In App Purchases &gt; Subscription Basic &gt; 1 Month &gt;  Offer a free trial?

I often find myself wanting to copy the contents of arrays that have a constant size, I usually just write something along the lines of:

    float a[4] = {0,1,2,3};
    float b[4];

    for(int i=0; i&lt;4; i++){
        b[i]=a[i];
    }

As of lately, I am writing a linear calculus library for educational purposes, and I was wondering if there was a better way to do it.

The first thing that came to my mind, was using memcpy:

    memcpy(b, a, sizeof(float) * 4);

But this seems very c-like and error prone to me. I like having my errors at compile time, and this can get ugly for data types with non-trivial copy constructors, or if I forget to multiply with sizeof(datatype).

Since I am writing a math library that I am going to use intensively, performance is very important to me. Are the compilers today smart enough to understand that the first example is just copying a chunk of memory and optimize it to be as efficient as the second solution?

Perhaps there is a function in the standard library that can help me? Something new in c++11? Or should I just create a macro or a template function?

Cleanest way to copy a constant size array in c++11

I like the new simplemembership feature in MVC 4 internet template with links to OAuth for external logins in VS 2012 RTM. For the most part authentication feature are working. However even after spending over 8 hours on this I am unable to implement roles based authorization to work on my controllers. SimpleMembership is turning out to be anything but simple.

I have searched stackoverflow, googled and have read the latest by [John Galloway](http://weblogs.asp.net/jgalloway/archive/2012/08/29/simplemembership-membership-providers-universal-providers-and-the-new-asp-net-4-5-web-forms-and-asp-net-mvc-4-templates.aspx), tried many suggestions and still have not been able to resovle this issue. It all started with getting Sql connection error and could not figure out why when the connection string and everything else was good. It took many hours to figure out the it is Roles class that is causing problem.

The [Authorize] attribute on controllers works as before for basic authentication. But any time I try to use Roles it give sql connection error (because it reverts to the old DefaultRolesProvider which tries to connect to default SqlExpress aspnetdb file and fails). So something like:

    [Authorize(Roles=&quot;admin&quot;)]

does not work. It will work if I go back to the old asp.net membership providers, but then I lose the simple database tables, token bases confirmation and recovery, more secure password hashing and more importantly external logins via OAuth.

The only thing that works inside code and razor views is 

    User.IsInRole(&quot;admin&quot;)

which is OK for menu items and such, but ver cumbersome to implement inside every single Action in controller (and I do not like that it only tests for single role at a time).

I will greatly appreciate any guidance to resovle this issue.

Role based authentication in the new MVC 4 Internet template using simplemembership

In Apple&#39;s AppStore Terms &amp; Conditions, you may find the following statement in relation to Auto-renewable In App Purchases:

&gt;&quot;Certain paid In App Subscriptions may offer a free trial period prior to charging your Account.&quot;

How does it work? I haven&#39;t seen any option to allow such free trial period for my Auto-renewable IAPs in iTunes Connect.

How to set-up In App Purchase free trial period in iOS app

In Apple's AppStore Terms &#x26; Conditions, you may find the following statement in relation to Auto-renewable In App Purchases:
>"Certain paid In App Subscriptions may offer a free trial period prior to charging your Account."
How does it work? I haven't seen any option to allow such free trial period for my Auto-renewable IAPs in iTunes Connect.

Is it possible to control UIView border properties (color, thickness, etc...) directly from interface builder or I can only do it programmatically?

Is it possible to set UIView border properties from interface builder?

What is the ***iOS 6.0*** user agent string?

----------

Previous user-agent strings:

 - [**iOS 5.1** - What is the iOS 5.1 user agent string?][1]
 - [**iOS 5.0** - What is the iOS 5.0 user agent string?][2]
 - [**iOS 4.0** - What is the iPhone 4 user-agent?][3]


  [1]: https://stackoverflow.com/q/10152433/836407
  [2]: https://stackoverflow.com/q/7825873/836407
  [3]: https://stackoverflow.com/q/3105555/836407


What is the iOS 6 user agent string?

Suppose I have a nav controller stack with 2 view controllers: VC2 is on top and VC1 is underneath.  Is there code I can include in VC1 that will detect that VC2 has just been popped off the stack?  

Since I&#39;m trying to detect the popping of VC2 from within the code for VC1 it seems that something like **viewWillAppear** or **viewDidAppear** won&#39;t work, because those methods fire every time VC1 is displayed, including when it is first pushed on the stack.

**EDIT:** it seems I was not very clear with my original question.  Here&#39;s what I&#39;m trying to do: determine when VC1 is being shown due to VC2 being popped off the top of the stack.  Here&#39;s what I&#39;m NOT trying to do: determine when VC1 is being shown due to being pushed onto the top of the stack.  I need some way that will detect the first action but NOT the second action.  

Note: I don&#39;t particularly care about VC2, it can be any number of other VCs that get popped off the stack, what I do care about is when VC1 becomes the top of the stack again due to some other VC begin popped off the top.

iOS how to detect programmatically when top view controller is popped?

The new iPhone 5 display has a new aspect ratio and a new resolution (640 x 1136 pixels).

What is required to develop new or transition already existing applications to the new screen size?

What should we keep in mind to make applications &quot;universal&quot; for both the older displays and the new widescreen aspect ratio?


How to develop or migrate apps for iPhone 5 screen resolution?

&gt; **Possible Duplicate:**  
&gt; [How to develop or migrate apps for iPhone 5 screen resolution?](https://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution)  

&lt;!-- End of automatically inserted text --&gt;

I was just wondering with how should we deal with the iPhone 5 bigger screen size.

As it has more pixels in height, things like GCRectMake that use coordinates (and just doubled the pixels with the retina/non retina problem) won&#39;t work seamlessly between versions, as it happened when we got the [Retina][1].

And will we have to design two storyboards, just like for the iPad?

I personally don&#39;t think Apple will require you to check the screen size every time you have to draw something, like many answers say. Does that happen with the iPad? 

  [1]: http://en.wikipedia.org/wiki/Retina_Display


iOS 6 apps - how to deal with iPhone 5 screen size?

I&#39;m trying to integrate Android Market in-app purchases into my app, but unfortunately coming across an annoying error every time I try to purchase a real inapp product.

I&#39;ve taken the sample application (Dungeons) and added it to my app. I&#39;ve updated the Public Key and also updated the list of products to the following:

/** An array of product list entries for the products that can be purchased. */

    private static final CatalogEntry[] CATALOG = new CatalogEntry[] {
        new CatalogEntry(&quot;full&quot;, &quot;Full v&quot;, Managed.MANAGED),
       
    };

I&#39;ve exported the application using Eclipse, and installed it on my phone and also uploaded it to the Android Market website. Also on the Android Market website I&#39;ve added full as an in-app purchase and published it.

I&#39;ve also added my googlemail account as a testing account (that is the one I&#39;m signed into on my phone).

When I run the application on my phone I get a the item you&#39;ve requested not available for purchase android message whenever I try to buy full, but if I try for example, android.test.purchased, it works absolutely fine.

The documentation for the item you&#39;ve requested not available for purchase android states the following:

Indicates that Android Market cannot find the requested item in the application&#39;s product list. This can happen if the product ID is misspelled in your REQUEST_PURCHASE request or if an item is unpublished in the application&#39;s product list.

The product ID is definetely the same, it&#39;s definetely published and the request must be going through ok as it&#39;s the sample application .

i am using same version of apk and i published inapp products also and activated apk also.
but still i am facing same problem please help me ho to fix it.

Any thoughts would be appreciated!

the item you requested is not available for purchase

My app seems ready to get a &#39;real life&#39; test for an in-app purchase procedure on my device. However, I receive an &quot;The publisher cannot purchase this item&quot; error message in Play Store.
Now, how am I supposed to test this? I don&#39;t want to lose my phone&#39;s configuration by reinstalling it with a dummy account just for testing. 
In the Developer Console under &quot;Settings&quot;-&quot;License testing&quot;, I have added my email address under &quot;GMail accounts with testing access&quot;, but this doesn&#39;t change anything... maybe I missed some simple way, but right now it feels very confusing!


Testing in-app billing: &quot;The publisher cannot purchase this item&quot;

I&#39;m currently testing my InApp billing mechanism (using the InApp Billing version 3 API, therefore taking the TrivialDrive example as reference).

I have one managed item, which is upgrade to premium version.

Now, purchasing the item with my test account works, but when I do a cancellation of the entire order in Google checkout afterwards, my code still tells me that the item is purchased an therefore grants the premium features.

Here is how I check for the purchase in my MainActivity. I do not save the purchase state locally somewhere, as I understood that the with the billing API v3, you can query for purchases ad hoc as needed.

    @Override
    	protected void onStart() {
    		// TODO Auto-generated method stub
    		super.onStart();
    		
    		iabHelper = new IabHelper(this, Helper.getPKey());
            iabHelper.enableDebugLogging(true);
            
            iabHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
    			
    			@Override
    			public void onIabSetupFinished(IabResult result) {
    				Log.d(&quot;IAB&quot;, &quot;SETUP FINISHED&quot;);
    				
    				if(!result.isSuccess())
    				{
    					Log.d(&quot;IAB&quot;, &quot;SETUP NOT OK&quot;);
    					return;
    				}
    				else
    					Log.d(&quot;IAB&quot;, &quot;SETUP OK&quot;);
    					
    				iabHelper.queryInventoryAsync(
    					new QueryInventoryFinishedListener() {
    						
    						@Override
    						public void onQueryInventoryFinished(IabResult result, Inventory inv) {
    							Log.d(&quot;IAB&quot;, &quot;Query inventory finished.&quot;);
    				            if (result.isFailure()) {
    				                Log.d(&quot;IAB&quot;,&quot;Failed to query inventory: &quot; + result);
    				                return;
    				            }
    
    				            Log.d(&quot;IAB&quot;, &quot;Query inventory was successful.&quot;);
    
    				            // Do we have the premium upgrade?
    				            boolean mIsPremium = inv.hasPurchase(Helper.premiumSku);
    				            Purchase p = inv.getPurchase(Helper.premiumSku);
    				            if(p != null)
    				            	Log.d(&quot;IAB PURCHASE STATE&quot;, IabHelper.getResponseDesc(p.getPurchaseState()));
    				            else
    				            	Log.d(&quot;IAB PURCHASE STATE&quot;, &quot;Purchase is null&quot;);
    				            
    				            Log.d(&quot;IAB&quot;, &quot;User is &quot; + (mIsPremium ? &quot;PREMIUM&quot; : &quot;NOT PREMIUM&quot;));
    				            
    							
    						}
    					}						
    					
    				);				
    			}
    		});       
    	}

I keep getting getPurchaseState = 0, which means is Purchased, even one hour after I cancelled the order. Why?

Android In-App Billing: Purchase state stays &quot;purchased&quot; after order cancelation

Currently with In app purchase the only way to cancel an auto-renewing subscription is to do the following with the device: 

Settings &gt; Store &gt; View my account &gt; Manage my subscription


Is it possible programmatically to link directly to the Manage my subscription page in the app store?  I know I can open the app store via something like 

    NSURL *url = [NSURL URLWithString:@&quot;itms-apps://itunes.apple.com&quot;];
    [[UIApplication sharedApplication] openURL:url];

I have seen other apps do this but I can&#39;t seem to figure out how.




Link to app manage subscriptions in app store

I have been facing a IN - App Purchase problem since long time. I need to integrate In-App functionality in my Android Application, but When I upload the APK file to the play store, it does not allow me to add SKU values. **To add in-app products, you need to add the BILLING permission to your APK**
I have been added  &quot;com.android.vending.BILLING&quot; permission in manifest file

&lt;br/&gt;1. I downloaded TRIVAL-DRIVER project.
&lt;br/&gt;2. Create a new library Project &quot;BILLLING LIBRARY&quot; with my Custom package name eg: Abc.xyz
&lt;br/&gt;3. Copy All UTLITY files ALONG .AIDL file[with default package name **com.android.vending.billing**]in my new Project
&lt;br/&gt;4. Gave Reference of that &quot;BILLING LIBRARY&quot; project to MY APPLICATION.
&lt;br/&gt;5. Create a signed APK fie and uploaded it to Play Store - [DRAFT]
&lt;br/&gt;6. *When I go to create SKU values, it gives me the message **&quot;To add in-app products, you need to add the BILLING permission to your APK.&quot;** and doesn&#39;t allow to add SKU values.*
&lt;br/&gt;
&lt;br/&gt;
Any suggestion or tips would be appreciated.


Content Type	Original Author	Original Content on Stackoverflow
Question	lef	View Question on Stackoverflow
Solution 1 - Ios	dengST30	View Answer on Stackoverflow
Solution 2 - Ios	zvi	View Answer on Stackoverflow
Solution 3 - Ios	Abhijith	View Answer on Stackoverflow
Solution 4 - Ios	Joseph Chen	View Answer on Stackoverflow
Solution 5 - Ios	hfossli	View Answer on Stackoverflow

How to set-up In App Purchase free trial period in iOS app

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Solution 3 - Ios

Solution 4 - Ios

Solution 5 - Ios

Role based authentication in the new MVC 4 Internet template using simplemembership

Cleanest way to copy a constant size array in c++11

Attributions