如何从android存储中选择pdf文件

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("application/pdf");
startActivityForResult(intent, PICK_PDF_REQUEST);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == PICK_PDF_REQUEST && resultCode == RESULT_OK && data != null && data.getData() != null) {
        Uri uri = data.getData();
        String filePath = getPathFromUri(uri);
        // 处理选择的PDF文件
    }
}

private String getPathFromUri(Uri uri) {
    String path = null;
    String[] projection = {MediaStore.Images.Media.DATA};
    Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
    if (cursor != null && cursor.moveToFirst()) {
        int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        path = cursor.getString(columnIndex);
        cursor.close();
    }
    return path;
}