tree b3224573773908f310f0a0aae34791c8a3b4f112
parent ab1b52a0c4804493232f28b1f08fce31db171884
author Ben Lin <linben@google.com> 1468279533 -0700
committer Ben Lin <linben@google.com> 1468366976 +0000

Trapping backspace at EditText level to prevent popping Docs.

When the EditText is empty, pressing backspace on soft/hardware keyboard
will call on the EditText's OnKeyListener. Since we don't handle
backspace, it will then bubble up to Activity-level, which will then pop
the document stack due to the feature of using backspace as navigation.
This will trap the call correctly if the EditText is empty.

Bug: 30066261
Change-Id: I231507b9469bfa52478872491f1d2713a1ac58ba