从Android应用程序打开文件管理器

Question

如何重定向我的应用程序以在特定路径打开文件管理器？

我尝试过类似的东西:

Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
    shareIntent.setType("*/*");
    shareIntent.putExtra(Intent.EXTRA_STREAM,
            Uri.fromFile(new File(filePath)));
    shareIntent.setPackage("my.package");
    startActivity(shareIntent);

但我一直得到错误:

E/AndroidRuntime(3591):android.content.ActivityNotFoundException:找不到处理Intent的活动{act = android.intent.action.SEND typ = / flg = 0x1 pkg = my.package(has clip)(有附加内容)}

什么是正确的意图过滤器,因为我怀疑ACTION_SEND不正确.

谢谢.

Answer 1

你可以使用Intent.ACTION_GET_CONTENT:

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
Uri uri = Uri.parse("/whatever/path/you/want/"); // a directory
intent.setDataAndType(uri, "*/*");
startActivity(Intent.createChooser(intent, "Open folder"));

Answer 2

Actually this days it's more like:

// Construct an intent for opening a folder
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(aDownloadFolder), "resource/folder");
// Check that there is an app activity handling that intent on our system
if (intent.resolveActivityInfo(aContext.getPackageManager(), 0) != null) {
    // Yes there is one start it then
    startActivity(intent);
} else {
    // Did not find any activity capable of handling that intent on our system 
    // TODO: Display error message or something    
}