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 reached to 100%

   uploadTask.addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
                double progress = 100.0 * (taskSnapshot.getBytesTransferred() / taskSnapshot.getTotalByteCount());
                System.out.println("Upload is " + progress + "% done");
            int currentprogress = (int) progress;
                progressBar.setProgress(currentprogress);
            }
        }).addOnPausedListener(new OnPausedListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onPaused(UploadTask.TaskSnapshot taskSnapshot) {
                System.out.println("Upload is paused");
            }
        });

Solution

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();

Comments

[Frank van Puffelen]

Ouch... that's a silly mistake in the code sample. I've made a note to fix it.

[Chintan Soni]

@FrankvanPuffelen Sir I have already reported the issue at code.google.com/p/android/issues/detail?id=215428

[coderpc]

is the style of progress bar horizontal ?

[Bob Snyder]

@nivla360 Post your code and error output as a new question

[gulab patel]

I have did the same but still not getting updates. not even console. have any idea what can be wrong..., same code as above