java - 在android中获取 Activity 结果中的文件大小

Question

我有这段代码:

 public static final int RESULT_OK = -1;
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case FILE_SELECT_CODE:
            if (resultCode == RESULT_OK) {
                // Get the Uri of the selected file
                Uri fileUri = data.getData();
                File F = new File(fileUri.getPath());
                Log.d("File", "File Uri: " + fileUri.toString());                 
                Intent intent = new Intent(getContext(),activity_file_sharing.class);
                intent.putExtra("Filepath", fileUri.toString());
                startActivity(intent);
            }
            break;
    }
    super.onActivityResult(requestCode, resultCode, data);
}

F.length() 总是返回 0 我需要将所选文件的大小传递给其他 Activity

谁能帮忙

Answer 1

请检查此链接:

how do I get file size of temp file in android?

试试这个:

File file = new File(selectedPath);
int file_size = Integer.parseInt(String.valueOf(file.length()/1024));