ios 显示其他app的购买页面

using UnityEngine;
using System.Collections;
using System.Runtime.InteropServices ;

public class IOSDoor : MonoBehaviour {

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

}

[DllImport("__Internal")]
private static extern void ShowBook ( int  bookid );

public static void ActivateButton0 ()
{
Debug.Log (2333);
if (Application.platform != RuntimePlatform.OSXEditor)
{
//点击按钮后调用xcode中的 _PressButton0 ()方法，
//方法中的内容须要我们自己来添加
ShowBook (1073005459);
}
}

[DllImport("__Internal")]
private static extern void _ShowBookApp ( string  bookid );

public static void ShowBookApp (string  bookid )
{
Debug.Log (2333 + "ShowBookStr" + bookid);
if (Application.platform != RuntimePlatform.OSXEditor)
{
//点击按钮后调用xcode中的 _PressButton0 ()方法，
//方法中的内容须要我们自己来添加
_ShowBookApp ("1073005459");
}
}

}

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{

..............................

NSLog(@"eeee") ;
UnityViewController  *    uv =  [[UnityViewController alloc] init] ;
//[uv.view setFrame:CGRectMake(0, 200, 320, 200)];
//uv.view.backgroundColor = [UIColor blackColor];
[UnityGetGLViewController().view addSubview:uv.view] ;

[UnityViewController setInstance:uv];

return YES;
}

//
//  UnityViewController.h
//  Unity-iPhone
//
//  Created by lc—— on 16/6/13.
//
//

#import <UIKit/UIKit.h>
#import <StoreKit/StoreKit.h>

@interface UnityViewController : UIViewController<SKStoreProductViewControllerDelegate>

- (void)showStoreProductInApp:(NSString *)appID ;
+(void) setInstance: ( UnityViewController *) inst ;
+(UnityViewController *)  getInstance ;
@end

//
//  UnityViewController.m
//  Unity-iPhone
//
//  Created by lc—— on 16/6/13.
//
//

#import "UnityViewController.h"

@interface UnityViewController ()

@end

@implementation UnityViewController

void ShowBook(  int  bookID )
{
NSLog(@"rrrrr") ;
//[[UnityViewController getInstance] showStoreProductInApp:@"1073005459"];
[[UnityViewController getInstance] showStoreProductInApp:[NSString stringWithFormat:@"%d" , bookID]];
}
void _ShowBookApp( const char *  bookID )
{
NSString * bookIDStr = [NSString stringWithUTF8String:bookID] ;
NSLog(@"rrrr r --- %@" , bookIDStr) ;
[[UnityViewController getInstance] showStoreProductInApp:@"1073005459"];
// NSString * bookIDStr = [NSString stringWithUTF8String:bookID] ;
//[[UnityViewController getInstance] showStoreProductInApp:bookIDStr];
}

void _ShowBookStar( const char *  bookID )
{
NSLog(@"rrrrr") ;
// //[[UnityViewController getInstance] showStoreProductInApp:@"1073005459"];
NSString * bookIDStr = [NSString stringWithUTF8String:bookID] ;
[[UnityViewController getInstance] loadAppStoreController:bookIDStr];
}

static  UnityViewController * instance ;
+(UnityViewController *)  getInstance
{
return instance ;
}

+(void) setInstance: ( UnityViewController *) inst
{
instance = inst ;
}

- (void)viewDidLoad {
[super viewDidLoad];
}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

- (void)loadAppStoreController:(NSString *)appID

{

NSLog(@"rrrrr--loadAppStoreController") ;
// 初始化控制器

SKStoreProductViewController *storeProductViewContorller = [[SKStoreProductViewController alloc] init];

// 设置代理请求为当前控制器本身

storeProductViewContorller.delegate = self;

[storeProductViewContorller loadProductWithParameters:@{SKStoreProductParameterITunesItemIdentifier:appID}  completionBlock:^(BOOL result, NSError *error)   {

if(error)

{

NSLog(@"error %@ with userInfo %@",error,[error userInfo]);

}  else

{

// 模态弹出appstore

[self presentViewController:storeProductViewContorller animated:YES completion:^{

}];

}

}];

}

- (void)showStoreProductInApp:(NSString *)appID{

Class isAllow = NSClassFromString(@"SKStoreProductViewController");

NSLog(@"ttt") ;

if (isAllow != nil) {

SKStoreProductViewController *sKStoreProductViewController = [[SKStoreProductViewController alloc] init];
[sKStoreProductViewController.view setFrame:CGRectMake(0, 200, 320, 200)];
[sKStoreProductViewController setDelegate:self];
[sKStoreProductViewController loadProductWithParameters:@{SKStoreProductParameterITunesItemIdentifier: appID}
completionBlock:^(BOOL result, NSError *error) {
if (result) {
[self presentViewController:sKStoreProductViewController
animated:YES
completion:nil];
// [self removeNotice];

}else{
NSLog(@"error:%@",error);
}
}];
}else{
//低于iOS6的系统版本没有这个类,不支持这个功能
NSString *string = [NSString stringWithFormat:@"itms-apps://itunes.apple.com/xxxxxxx/app/id%@?mt=8",appID];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:string]];
}
}

#pragma mark - SKStoreProductViewControllerDelegate
- (void)productViewControllerDidFinish:(SKStoreProductViewController *)viewController {
[viewController dismissViewControllerAnimated:YES completion:nil];
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/

@end