update progress bar with Firebase uploading

Question

I tried to add a progress bar to uploading files on firebase. but unfortunalty it does not indicate upload progress. both logcat & progress bar only indicate when file

Answer 1

Change the grouping of terms in your calculation of progress to force conversion to float. As your code is now, you are dividing two longs. The result of the division will be 0 until getBytesTransferred() == getTotalByteCount(), then it will be 1.

 double progress = (100.0 * taskSnapshot.getBytesTransferred()) / taskSnapshot.getTotalByteCount();