從Android上傳Google Drive圖像

Question

我正嘗試使用API​​將圖像上傳到谷歌驅動器。我已經搜查了很多，但我沒有找到辦法。我有一個演示代碼，它可以上傳一個文本文件，它可以工作。我需要改變它來上傳圖片。 這是代碼...

public void CreateFileOnGoogleDrive(DriveContentsResult result){ 


    final DriveContents driveContents = result.getDriveContents(); 

    // Perform I/O off the UI thread. 
    new Thread() { 
     @Override 
     public void run() { 
      // write content to DriveContents 
      OutputStream outputStream = driveContents.getOutputStream(); 
      Writer writer = new OutputStreamWriter(outputStream); 
      try { 
       writer.write("Hello abhay!"); 
       writer.close(); 
      } catch (IOException e) { 
       Log.e(TAG, e.getMessage()); 
      } 

      MetadataChangeSet changeSet = new MetadataChangeSet.Builder() 
        .setTitle("abhaytest2") 
        .setMimeType("text/plain") 
        .setStarred(true).build(); 

      // create a file in root folder 
      Drive.DriveApi.getRootFolder(mGoogleApiClient) 
        .createFile(mGoogleApiClient, changeSet, driveContents) 
        .setResultCallback(fileCallback); 
     } 
    }.start(); 
} 

我怎樣才能改變這種代碼從文件上傳的圖像。（在設備的圖像的給定位置）。？ 我發現很少的教程，但這些是不推薦使用的方法。

Answer 1

使用此代碼上傳圖像Google雲端硬盤...

new Thread() { 
      @Override 
      public void run() { 
       // write content to DriveContents 
       OutputStream outputStream = driveContents.getOutputStream(); 
       // Write the bitmap data from it. 
       MetadataChangeSet metadataChangeSet = new MetadataChangeSet.Builder() 
         .setMimeType("image/jpeg").setTitle(title) 
         .build(); 
       Bitmap image = BitmapFactory.decodeFile(location)); 
       ByteArrayOutputStream bitmapStream = new ByteArrayOutputStream(); 
       image.compress(Bitmap.CompressFormat.JPEG, 80, bitmapStream); 
       try { 
        outputStream.write(bitmapStream.toByteArray()); 
       } catch (IOException e1) { 
        Log.i("E", "Unable to write file contents."); 
       } 
       image.recycle(); 
       outputStream = null; 
       String title = "noisy"; 

       Log.i("E", "Creating new pic on Drive (" + title + ")"); 
       Drive.DriveApi.getFolder(mGoogleApiClient,driveId) 
         .createFile(mGoogleApiClient, metadataChangeSet, driveContents) 
         .setResultCallback(fileCallback); 
      } 
     }.start(); 

Answer 2

首先，您不需要創建文件，然後將內容寫入其中。

private void saveFiletoDrive(final File file, final String mime) { 
    Drive.DriveApi.newDriveContents(mDriveClient).setResultCallback(
      new ResultCallback<DriveContentsResult>() { 
       @Override 
       public void onResult(DriveContentsResult result) { 
        if (!result.getStatus().isSuccess()) { 
         Log.i(TAG, "Failed to create new contents."); 
         return; 
        } 
        Log.i(TAG, "Connection successful, creating new contents..."); 
        OutputStream outputStream = result.getDriveContents() 
          .getOutputStream(); 
        FileInputStream fis; 
        try { 
         fis = new FileInputStream(file.getPath()); 
         ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
         byte[] buf = new byte[1024]; 
         int n; 
         while (-1 != (n = fis.read(buf))) 
          baos.write(buf, 0, n); 
         byte[] photoBytes = baos.toByteArray(); 
         outputStream.write(photoBytes); 

         outputStream.close(); 
         outputStream = null; 
         fis.close(); 
         fis = null; 

        } catch (FileNotFoundException e) { 
         Log.w(TAG, "FileNotFoundException: " + e.getMessage()); 
        } catch (IOException e1) { 
         Log.w(TAG, "Unable to write file contents." + e1.getMessage()); 
        } 

        String title = file.getName(); 
        MetadataChangeSet metadataChangeSet = new MetadataChangeSet.Builder() 
          .setMimeType(mime).setTitle(title).build(); 

        if (mime.equals(MIME_PHOTO)) { 
         if (VERBOSE) 
          Log.i(TAG, "Creating new photo on Drive (" + title 
            + ")"); 
         Drive.DriveApi.getFolder(mDriveClient, 
           mPicFolderDriveId).createFile(mDriveClient, 
           metadataChangeSet, 
           result.getDriveContents()); 
        } else if (mime.equals(MIME_VIDEO)) { 
         Log.i(TAG, "Creating new video on Drive (" + title 
           + ")"); 
         Drive.DriveApi.getFolder(mDriveClient, 
           mVidFolderDriveId).createFile(mDriveClient, 
           metadataChangeSet, 
           result.getDriveContents()); 
        } 

        if (file.delete()) { 
         if (VERBOSE) 
          Log.d(TAG, "Deleted " + file.getName() + " from sdcard"); 
        } else { 
         Log.w(TAG, "Failed to delete " + file.getName() + " from sdcard"); 
        } 
       } 
      }); 
}