2017-09-04 43 views
0

我想在android中實現文件選擇器。我已經實現了下面的代碼來打開文件選擇器。如何從給定的uri獲得真正的路徑在android filechooser dropbox和谷歌驅動器?

public static void showFileChooser(Activity activity, Fragment fragment) { 
     try { 

      File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM), "example"); 
      if (!imageStorageDir.exists()) { 
       imageStorageDir.mkdirs(); 
      } 
      File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg"); 
      mCapturedImageURI = Uri.fromFile(file); // save to the private variable 

      final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
      captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI); 
      captureIntent.putExtra("capturedimageuri", mCapturedImageURI.toString()); 

      // Intent for Audio Recording 
      final Intent audioRecordIntent = new Intent(); 
      audioRecordIntent.setAction(IAdoddleConstants.ACTION_AUDIO_RECORD); 

      final Intent videoRecordIntent = new Intent(); 
      videoRecordIntent.setAction(IAdoddleConstants.ACTION_VIDEO_RECORD); 

      // Use the GET_CONTENT intent from the utility class 
      Intent target = com.asite.adoddle.filechooser.FileUtils.createGetContentIntent(); 
      // Create the chooser Intent 


      if (activity != null) { 
       Intent intent = Intent.createChooser(
         target, activity.getString(R.string.chooser_title)); 

       intent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { captureIntent,audioRecordIntent, videoRecordIntent}); 
       activity.startActivityForResult(intent, IMAGE_ANNOTATION_REQUEST_CODE); 
      } else { 
       Intent intent = Intent.createChooser(
         target, fragment.getString(R.string.chooser_title)); 

       intent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { captureIntent,audioRecordIntent, videoRecordIntent}); 
       fragment.startActivityForResult(intent, IMAGE_ANNOTATION_REQUEST_CODE); 
      } 

     } catch (ActivityNotFoundException e) { 
      AdoddleLog.e(DEBUG_TAG, "Error:" + e); 
     } catch (Exception ex) { 
      ex.printStackTrace(); 
      CommonUtilities.showToast(activity, activity.getString(R.string.error_message), Toast.LENGTH_LONG); 
     } 
    } 

現在,它打開filechooser如下所示。

enter image description here

現在,當我點擊那個「文檔」我從那裏我可以選擇相同的文件像下面不同的應用程序。

enter image description here

在這裏你可以看到像谷歌驅動器和Dropbox的應用。現在我想從這個應用程序中選擇文件。 現在,當我從保管箱中選擇文件,然後在onActivityResult(int requestCode, int resultCode, Intent data)我得到內容://com.dropbox.android.FileCache/filecache/2642b6eb-f9da-4775-b6c5-6cb4d6884018 uri從意圖。現在如何從這個uri獲得真正的路徑? 我想在我的活動中附加此文件。此外,我無法獲得谷歌驅動器文件的真實路徑。

+0

不使用文件路徑,用'InputStream'代替 - 見'更多信息 – pskink

+0

@pskink ContentResolver'文檔,所以你使用的InputStream我的意思將該文件寫在我的SD卡上,然後使用該SD卡的文件路徑。 –

+0

爲什麼你需要文件路徑?你不能只使用'InputStream'嗎? (或'ParcelFileDescriptor' /'FileDescriptor')? – pskink

回答

-1

要獲得的圖像或視頻真實路徑使用:

protected String getPhotoUriRealPath(Uri contentURI) { 
    String path = ""; 
    if (contentURI == null) { 
     return path; 
    } 
    Cursor cursor = getContentResolver().query(contentURI, null, null, null, null); 

    if (cursor == null) { 
     path = contentURI.getPath(); 
    } else { 
     cursor.moveToFirst(); 
     int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA); 
     path = cursor.getString(idx); 

    } 
    if (cursor != null) { 
     cursor.close(); 
    } 
    return path; 
} 

protected String getVideoUriRealPath(Uri contentURI) { 
    String path = ""; 
    if (contentURI == null) { 
     return path; 
    } 
    Cursor cursor = getContentResolver().query(contentURI, null, null, null, null); 

    if (cursor == null) { 
     path = contentURI.getPath(); 
    } else { 
     cursor.moveToFirst(); 
     int idx = cursor.getColumnIndex(MediaStore.Video.VideoColumns.DATA); 
     path = cursor.getString(idx); 

    } 
    if (cursor != null) { 
     cursor.close(); 
    } 
    return path; 
} 
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