java - 在 Android 上捕获和拦截 ACTION_SEND Intent

Question

目前我有一个非常标准的 ACTION_SEND Intent 来从我的应用程序内部共享信息。代码类似于以下内容:

    Intent intent = new Intent(Intent.ACTION_SEND);
    intent.setType("text/plain");
    intent.putExtra(Intent.EXTRA_SUBJECT, subject);
    intent.putExtra(Intent.EXTRA_TEXT, text);
    context.startActivity(Intent.createChooser(intent, title));

现在，如果用户在他们的手机上安装了 Facebook 应用程序，那么 Facebook 将显示为意向选择器的一个选项。但是，我想拦截用户对“Facebook”的点击，并使用 Facebook SDK 来执行任务，而不是用户手机上已有的 Facebook 应用程序。有没有办法拦截 Facebook 选项的 onClick？谢谢!

Answer 1

这是我的博客文章的链接，其中包含详细的解决方案，包括代码和屏幕截图。

http://clickclickclack.wordpress.com/2012/01/03/intercepting-androids-action_send-intents/

引用自那篇文章:

[W]e first create a new action_send intent and set the type to text/plain. Next, we create a List. We make the call to the package manager to query for all Activities with the action_send intent registered. This call returs a list of ResolveInfo objects, each corresponding to an Activity on the device that claims to handle send actions.

[Then, r]ather than launching the action_send intent and letting it create its own dialog (one that we would have no control over), we will build our own with the AlertDialog.Builder. First we give it a title, then set its adapter to the list adapter we just created with the activities list as our data set[.]

The next important piece we need to look at is the OnClick listener we gave the Builder. To find which item the user clicked, we use the adapter.getItem(int which) method. This will return the object in that position of our original list, in this case, a ResolveInfo object corresponding to the selected Activity. For my case in particular, I only care about separating things into two groups: Facebook and not Facebook. To do this, I simply check if the selected Activity’s package name contains ‘facebook’. If it does not, I create a new action_send intent, set the class name to the selected activity, and launch it. However, if the package name DOES contain ‘facebook’, I instantiated my personal PostToFacebookDialog object which will create a basic Android dialog with post and cancel buttons, and will post to Facebook directly using the Graph API, thus circumventing the user’s installed Facebook app.