I have completed the videos until #30. I ran the app on my device and when I write some text and push the button, the text doesn't show up but instead on Top and Bottom Fields , this shows up:

android.support.v7.internal.widget.TintEditText{4391,,(some numbers here) VFED..CL.........(numbers-digits again) #7f090044. app:id/topTextInput }

I don't know where the problem really is. Please help me.