DeskClock: Fix left button display

* When adding a new timer, the left FAB will change to a "delete" icon
* Switching to another tab and returning will not display it anymore,
  resulting in the requirement to actually start a new timer to be able
  to access already running ones

* Test:
- Default FAB visibility is GONE until a valid value is inserted
- Changing from and to tab will display it again if value was already
  inserted
- Start timer
- Click "Add" (right button)
- Delete button will appear
- Delete button will be visible after swicthing tab and returning

Change-Id: I311faa96ea9e0320c630fa858227f2ad4625eb4e

1 files changed, 2 insertions, 2 deletions

diff --git a/src/com/android/deskclock/timer/TimerFragment.java b/src/com/android/deskclock/timer/TimerFragment.java
index e194891ef..165c359bd 100644
--- a/src/com/android/deskclock/timer/TimerFragment.java
+++ b/src/com/android/deskclock/timer/TimerFragment.java
@@ -238,15 +238,15 @@ public final class TimerFragment extends DeskClockFragment {
 
     @Override
     public int getFabTargetVisibility() {
+        final Timer timer = getTimer();
         if (mCurrentView == mTimersView) {
-            final Timer timer = getTimer();
             if (timer == null) {
                 return INVISIBLE;
             } else {
                 return VISIBLE;
             }
         } else if (mCurrentView == mCreateTimerView) {
-            if (mCreateTimerView.hasValidInput()) {
+            if (mCreateTimerView.hasValidInput() || timer != null) {
                 return VISIBLE;
             } else {
                 return INVISIBLE;