无法从android[duplicate]中的文档中获取正确的uri格式

Question

我试图获取文档的URI时出错。"content://com.android.providers.downloads.documents/document/158“这是我得到的URI。我无法从这个URI获得路径。在这里，我共享了我的代码。

RC_PICK_DOCUMENT -> {
              when (resultCode) {
                  Activity.RESULT_OK ->
                      processDocument(data?.data)
              }
          }

Answer 1

在onActivityResult中处理此代码，

 if (requestCode == Constants.RESULT_PICK_DOC
                && resultCode == Activity.RESULT_OK
            ) {
                try {
                    if (data != null) {
                    val uri = data.data
                    // Here You get URI path
                    val path = FileUtils().getDocPath(activity!!, uri!!)?.toUri()?.path

                    }
                } catch (e: Exception) {
                    e.printStackTrace()
                }

            }

下面是FileUtils类中的getDocPath（）函数

class FileUtils {
    fun getDocPath(context: Context, uri: Uri): String? {
        var path: String? = null
        val projection =
            arrayOf(MediaStore.Files.FileColumns.DATA)
        val cursor =
            context.contentResolver.query(uri, projection, null, null, null)
        if (cursor == null) {
            path = uri.path
        } else {
            cursor.moveToFirst()
            val column_index = cursor.getColumnIndexOrThrow(projection[0])
            path = cursor.getString(column_index)
            cursor.close()
        }
        return if (path == null || path.isEmpty()) uri.path else path
    }
}