Gluon Glion移动共享按钮的实现

Gluon Mobile对实现共享按钮有何指导？我的目标是能够共享一个字符串，其中包含指向手机上不同应用程序的链接目前，我只需要在iOS实施中使用它。我找到了一种在Objective-C中实现这一点的简单方法：

- (IBAction)shareButton:(UIBarButtonItem *)sender
{
    NSString *textToShare = @"Look at this awesome website for aspiring iOS Developers!";
    NSURL *myWebsite = [NSURL URLWithString:@"http://www.codingexplorer.com/"];

    NSArray *objectsToShare = @[textToShare, myWebsite];

    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil];

    NSArray *excludeActivities = @[UIActivityTypeAirDrop,
                                   UIActivityTypePrint,
                                   UIActivityTypeAssignToContact,
                                   UIActivityTypeSaveToCameraRoll,
                                   UIActivityTypeAddToReadingList,
                                   UIActivityTypePostToFlickr,
                                   UIActivityTypePostToVimeo];

    activityVC.excludedActivityTypes = excludeActivities;

    [self presentViewController:activityVC animated:YES completion:nil];
}

看看Gluon网站上的应用程序示例，似乎我可以在需要的地方使用上面的代码片段作为本机iOS代码。我是否必须更新ios构建梯度以考虑上面第一个链接中提到的UIActivity类

更新*

基于这个问题上的帮助，我已经能够让它工作了

但是，在尝试安装本机库时，我遇到了这个错误，这是可以理解的，因为

self

在代码范围内是未知的。我怎样才能做到这一点？实例化popover或对话框并将

活动VC

传递给它

---

/Users/ashishsharma/NetBeansProjects/konfamdbranch/src/ios/n‌​ative/Share.m:25:6:错误：使用未声明的标识符“self”[self-presentViewController:activityVC-animated:YES-completion:nil]
因此，我能够通过互联网上的示例（如上所示）以及条形码扫描服务的现有代码来解决这个问题。我在使用上述代码时遇到的问题是找不到当前视图控制器。但是，通过查看的位桶源代码，我能够使用以下代码获得根视图：

if(![[UIApplication sharedApplication] keyWindow])
{
    NSLog(@"key window was nil");
    return;
}

// get the root view controller
UIViewController *rootViewController = [[[UIApplication sharedApplication] keyWindow] rootViewController];
if(!rootViewController)
{
    NSLog(@"rootViewController was nil");
    return;
}

然后在我提出的问题的代码片段中，将
self
替换为
rootViewController
：

[rootViewController presentViewController:activityVC animated:YES completion:nil];

这将导致修改后的代码段：

#import <UIKit/UIKit.h>

#include "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/JavaVM.framework/Versions/A/Headers/jni.h"

JNIEXPORT void JNICALL     Java_com_gluonhq_charm_down_plugins_ios_IOSShareService_shareMessage
(JNIEnv *env, jclass jClass, jstring jMessage) {

    if(![[UIApplication sharedApplication] keyWindow])
    {
        NSLog(@"key window was nil");
        return;
    }

    // get the root view controller
    UIViewController *rootViewController = [[[UIApplication sharedApplication] keyWindow] rootViewController];
    if(!rootViewController)
    {
        NSLog(@"rootViewController was nil");
        return;
    }

    NSString *textToShare = @"Check out this site!";
    NSURL *myWebsite = [NSURL URLWithString:@"http://www.google.com/"];

    NSArray *objectsToShare = @[textToShare, myWebsite];

    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil];

    NSArray *excludeActivities = @[UIActivityTypeAirDrop,
                                   UIActivityTypePrint,
                                   UIActivityTypeAssignToContact,
                                   UIActivityTypeSaveToCameraRoll,
                                   UIActivityTypeAddToReadingList,
                                   UIActivityTypePostToFlickr,
                                   UIActivityTypePostToVimeo];

    activityVC.excludedActivityTypes = excludeActivities;

   [rootViewController presentViewController:activityVC animated:YES completion:nil];

}

#导入
#包括“/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/sdk/MacOSX.sdk/System/Library/Frameworks/JavaVM.framework/Versions/A/Headers/jni.h”
JNIEXPORT void JNICALL Java\u com\u gluonhq\u charm\u down\u插件\u ios\u IOSShareService\u shareMessage
（JNIEnv*env、jclass、jclass、jstringjmessage）{
如果（！[[UIApplication sharedApplication]keyWindow]）
{
NSLog（@“键窗口为零”）；
返回；
}
//获取根视图控制器
UIViewController*rootViewController=[[[UIApplication sharedApplication]keyWindow]rootViewController]；
如果（！rootViewController）
{
NSLog（@“rootViewController为零”）；
返回；
}
NSString*textToShare=@“查看此站点！”；
NSURL*myWebsite=[NSURL URLWithString:@”http://www.google.com/"];
NSArray*objectsToShare=@[textToShare，myWebsite]；
UIActivityViewController*activityVC=[[UIActivityViewController alloc]initWithActivityItems:objectsToShare应用程序活动：nil]；
NSArray*excludeActivities=@[UIActivityTypeAirDrop，
UIActivityTypePrint，
UIActivityTypeAssignToContact，
UIActivityTypeSaveToCameraRoll，
UIActivityTypeAddToradinglist，
UIActivityTypePostToflicker，
UIActivityTypePostToVimeo]；
activityVC.excludedActivityTypes=excludeActivities；
[rootViewController presentViewController:activityVC动画：是完成：无]；
}

注意：我按照Gonactive应用程序正确生成了objective-c/ios文件。

这导致了功能共享实现的最小化，只是因为我没有在IPhone模拟器上安装Facebook。