Firebase. Storage. UploadState
  UploadState contains information for an upload in progress.
Summary
        Properties | 
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|---|---|---|---|
        BytesTransferred
       | 
      
        long
        The total number of bytes uploaded so far.  
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        Metadata
       | 
      
        
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              Returns
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          the metadata for the object.  
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        Reference
       | 
      
        
         Returns the StorageReference associated with this upload.  
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        TotalByteCount
       | 
      
        long
        The total number of bytes to upload.  
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        UploadSessionUri
       | 
      
        Uri
        
              Returns
             | 
            
               | 
          the session Uri, valid for approximately one week, which can be used to resume an upload later by passing this value into an upload.  
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Properties
BytesTransferred
long BytesTransferred
The total number of bytes uploaded so far.
| Details | |
|---|---|
| Returns | 
               the total number of bytes uploaded so far. 
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Metadata
StorageMetadata Metadata
| Details | |
|---|---|
| Returns | 
               the metadata for the object.  
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After uploading, this will return the resulting final Metadata which will include the upload URL.
Reference
StorageReference Reference
Returns the StorageReference associated with this upload.
| Details | |
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| Returns | 
               the StorageReference associated with this upload. 
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TotalByteCount
long TotalByteCount
The total number of bytes to upload.
| Details | |
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| Returns | 
               the total number of bytes to upload or -1 if the size is unknown. 
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UploadSessionUri
Uri UploadSessionUri
| Details | |
|---|---|
| Returns | 
               the session Uri, valid for approximately one week, which can be used to resume an upload later by passing this value into an upload.  
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