In-IOS purchase

The iOS implementation code is as follows ():

#import "ViewController.h"

#import <StoreKit/StoreKit.h>

@interface Viewcontroller () <skproductsrequestdelegate,skpaymenttransactionobserver >

Record Product List

@property(nonatomic,strong)Nsarray*allproducts;

@end

@implementation Viewcontroller

-(void) viewdidload {

[Super viewdidload];

//1 Request a list of items that can be sold

// prepare a list of items to be sold

nsstring *path=[[nsbundle mainbundle]pathforresource:@ "Products.json" ofType:nil];

nsdata *data=[nsdata datawithcontentsoffile:p ath];

nsarray *arraylist=[nsjsonserialization jsonobjectwithdata:d ata options: 0 error:NULL];

// Product List

nsarray *arrayidlist=[arraylist valueforkeypath:@ "ProductId"];

nsset *set=[nsset setwitharray: arrayidlist];

// Create a Request object

skproductsrequest*request=[[skproductsrequest alloc] Initwithproductidentifiers: set];

// set up proxy

Request. delegate=self;

// start request

[Request start];

// Create listener to listen for trading status of trading objects in the trading queue

[[skpaymentqueue defaultqueue]addtransactionobserver:self];

}

Proxy method , which returns a list of data for the requested object

-(void) Productsrequest: (skproductsrequest *) Request Didreceiveresponse: ( Skproductsresponse *) Response

{

for (skproduct*product in response. Products) {

// object contains all information about the Product object

}

self. Allproducts=response. Products;

// Refresh table

[self. TableView reloaddata];

}

2. Show available items for sale

-(Nsinteger) TableView: (uitableview *) TableView numberofrowsinsection: (nsinteger) section

{

return self . Allproducts. Count;

}

-(uitableviewcell*) TableView: (uitableview *) TableView Cellforrowatindexpath: ( Nsindexpath *) indexpath

{

static nsstring *id=@ "cell";

UITableViewCell *cell=[tableview dequeuereusablecellwithidentifier: ID];

if (cell==nil) {

cell=[[UITableViewCell alloc] initwithstyle:uitableviewcellstylesubtitle reuseidentifier: ID];

}

skproduct *product=self. Allproducts[Indexpath. Row];

Cell. Textlabel. Text=product. Localizedtitle;

Cell. Detailtextlabel. Text=[nsstring stringwithformat:@ "%@ circle ", product. Price];

return cell;

}

3 views Buy

-(void) TableView: (uitableview *) TableView Didselectrowatindexpath: (nsindexpath *) Indexpath

{

//4 Invoicing

skproduct *pro=self. Allproducts[Indexpath. Row];

skpayment *payment=[skpayment paymentwithproduct:p ro];

//5, Create a Trade object , add to the trading queue

//nsstring *str=[nsbundle mainbundle]pathforresource:@ "blue.bundle/blue/" OFTYPE:NIL;

[[skpaymentqueue defaultqueue]addpayment:p ayment];

}

when you listen to changes in the trading status in the trading queue, you call

-(void) Paymentqueue: (skpaymentqueue *) queue updatedtransactions: (nsarray *) Transactions

{

// non-consumable items can be recovered for purchase

/*

Skpaymenttransactionstatepurchasing, the transaction is being added to the trading queue

skpaymenttransactionstatepurchased,// trading is already in the queue , the user has paid , the client needs to complete the transaction

Skpaymenttransactionstatefailed,//has not been added to the queue to cancel or fail

skpaymenttransactionstaterestored,// transactions are resumed for purchase and clients need to complete the transaction

Skpaymenttransactionstatedeferred Ns_enum_available_ios (8_0), trading in the queue , trading status is not determined dependent on other parameters involved

*/

//7. If the transaction successfully provides the product of the transaction

for(skpaymenttransaction *t in transactions)

{

if (t.transactionstate= =skpaymenttransactionstatepurchased) {

// services provided

// close trading

[[skpaymentqueue defaultqueue]finishtransaction: t];

}Else if(t.transactionstate= =skpaymenttransactionstaterestored)

{

// Restore purchase Success

// close trading

[[skpaymentqueue defaultqueue]finishtransaction: t];

}

}

}

-(void) didreceivememorywarning {

[Super didreceivememorywarning];

[[skpaymentqueue defaultqueue]removetransactionobserver:self];

}

In-IOS purchase