在Android中获取没有Google集成的选择器意图Google驱动器文件文档

Question

我正在开发一个安卓应用程序，它在google驱动器中调用getPickChooserIntent来获取一些文件，它可以很好地处理图像，但不能处理文档：

注意:我不是在谈论google的实现。

public static Intent getPickChooserIntent(
      @NonNull Context context,
      CharSequence title,
      boolean includeDocuments,
      boolean includeCamera) {

    List<Intent> allIntents = new ArrayList<>();
    PackageManager packageManager = context.getPackageManager();

    // collect all camera intents if Camera permission is available
    if (!isExplicitCameraPermissionRequired(context) && includeCamera) {
      allIntents.addAll(getCameraIntents(context, packageManager));
    }

    List<Intent> galleryIntents =
        getGalleryIntents(packageManager, Intent.ACTION_GET_CONTENT, includeDocuments);
    if (galleryIntents.size() == 0) {
      // if no intents found for get-content try pick intent action (Huawei P9).
      galleryIntents = getGalleryIntents(packageManager, Intent.ACTION_PICK, includeDocuments);
    }
    allIntents.addAll(galleryIntents);

    Intent target;
    if (allIntents.isEmpty()) {
      target = new Intent();
    } else {
      target = allIntents.get(allIntents.size() - 1);
      allIntents.remove(allIntents.size() - 1);
    }

    // Create a chooser from the main  intent
    Intent chooserIntent = Intent.createChooser(target, title);

    // Add all other intents
    chooserIntent.putExtra(
        Intent.EXTRA_INITIAL_INTENTS, allIntents.toArray(new Parcelable[allIntents.size()]));

    return chooserIntent;
  }

从getPickImageChooserIntent(上下文)获取所选图像的URI将返回正确的URI。

public static Uri getPickImageResultUri(@NonNull Context context, @Nullable Intent data) {
    boolean isCamera = true;
    if (data != null && data.getData() != null) {
      String action = data.getAction();
      isCamera = action != null && action.equals(MediaStore.ACTION_IMAGE_CAPTURE);
    }
    return isCamera || data.getData() == null ? getCaptureImageOutputUri(context) : data.getData();
  }

之后，我只找到URI，如：content://com.google.android.apps.docs.storage.legacy/enc%3D8HXM7NIDpCn_Ax78iaO3nB9azNXlIu4AOk2poROCD8xP19KU%0A

这个URI可以很好地在ImageView中显示图像和图像，如果当时我选择了PDF或其他文档，那么它就不能工作了。

任何一个人有任何想法从谷歌驱动器获得意图数据，而没有谷歌驱动API集成？

谢谢

Answer 1

终于我做到了！

解决方案：

 @Override
    @SuppressLint("NewApi")
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == CropImage.PICK_IMAGE_CHOOSER_REQUEST_CODE) {
            if (resultCode == Activity.RESULT_OK) {


             Uri mUri = CropImage.getPickImageResultUri(this, data);

             writeStreamToFile(getApplicationContext(),mUri,".pdf");

            }
        }
    }

方法：

   @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    void writeStreamToFile(Context mContext, Uri mUri,String ext) {
        if (mUri == null) {
            return;
        }

        String[] filePathColumn = {MediaStore.Images.Media.DATA};

        Cursor cursor = mContext.getContentResolver().query(mUri, filePathColumn, null, null, null);
        String mCurrentPath = null;
        if (cursor != null && cursor.moveToFirst()) {
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            mCurrentPath = cursor.getString(columnIndex);
            cursor.close();
        }

        if (TextUtils.isEmpty(mCurrentPath)) {
            mCurrentPath = mUri.getPath();
        }

        File storageDir = mContext.getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS);
        InputStream inputStream = null;
        try {
            inputStream = mContext.getContentResolver().openInputStream(mUri);

            File file = File.createTempFile("pptFiles", ext, storageDir);

            try (OutputStream output = new FileOutputStream(file)) {
                byte[] buffer = new byte[4 * 1024]; // or other buffer size
                int read;
                while ((read = inputStream.read(buffer)) != -1) {
                    output.write(buffer, 0, read);
                }
                output.flush();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }