我想分享短信低谷的Twitter，Facebook或者以其他方式在设备可用。我写了接下来code：

 意图份额=新意图（Intent.ACTION_SEND）;    share.putExtra（Intent.EXTRA_TEXT，这是Twitter的一些文字。）;    startActivity（Intent.createChooser（份额，通过共享此））; 

但是，如果没有应用程序，可以hadle这个动作，出现在屏幕上的没有这样的应用程序对话框。我要检测这些应用程序和关闭此功能，如果没有找到处理程序。我该怎么办呢？

 意向意图=新意图...    软件包管理系统经理= mContext.getPackageManager（）;    清单＆LT; ResolveInfo＆GT;清单= manager.queryIntentActivities（意向，0）;    如果（名单= NULL＆放大器;！＆安培;则为list.size（）0）{        //你至少有一个活动来处理这个意图    }其他{        //没有活动处理的意图。    } 

I want to share text message trough twitter, facebook or in other ways that available on device. I wrote next code:

    Intent share = new Intent(Intent.ACTION_SEND);
    share.putExtra(Intent.EXTRA_TEXT, "Here's some text for Twitter.");
    startActivity(Intent.createChooser(share, "Share this via"));       

But if no apps that can hadle this action, the "no such apps" dialog appears on screen. I want to detect these apps and disable this function if there is no handlers found. How I can do it?

    Intent intent = new Intent...
    PackageManager manager = mContext.getPackageManager();
    List<ResolveInfo> list = manager.queryIntentActivities(intent, 0);

    if (list != null && list.size() > 0) {
        //You have at least one activity to handle the intent
    } else {
        //No activity to handle the intent.
    }