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问题描述
如何打开一个对话框，列出所有的应用程序，可以打开一个给定的文件夹？
我试过以下code
意向意图=新意图（Intent.ACTION_GET_CONTENT）;
intent.setData（Uri.fromFile（Environment.getExternalStorageDirectory（）））;
startActivity（Intent.createChooser（意向，打开文件夹））;
它说：没有应用程序可以执行此操作。
我的设备有默认的文件管理器和应用程序AndroidZip（这些应用程序可以打开一个文件夹）。
解决方案
That is not surprising. You are not asking to open a "folder", as there is no such thing as a "folder" in the Intent system. You are trying to find out what applications can open a path with no file extension and no MIME type. There are no applications installed on your device that have an <intent-filter> on an activity that supports ACTION_GET_CONTENT on a path with no file extension and no MIME type.
You might try ACTION_VIEW. However, bear in mind that I would estimate that 90+% of Android devices will have nothing that deals with "folders" in this fashion, either.
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