- show back button when we have a fragment stack

ncapdevi · Nov 22, 2016 · fd64e86 · fd64e86
1 parent ba8aaf9
commit fd64e86
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/app/src/main/java/com/ncapdevi/sample/activities/BottomTabsActivity.java b/app/src/main/java/com/ncapdevi/sample/activities/BottomTabsActivity.java
@@ -97,12 +97,19 @@ public void pushFragment(Fragment fragment) {
 
     @Override
     public void onTabTransaction(Fragment fragment, int index) {
-            //do tabby stuff
+        // If we have a backstack, show the back button
+        if(getSupportActionBar() != null){
+            getSupportActionBar().setDisplayHomeAsUpEnabled(mNavController.canPop());
+        }
     }
 
     @Override
     public void onFragmentTransaction(Fragment fragment) {
         //do fragmentty stuff. Maybe change title, I'm not going to tell you how to live your life
+        // If we have a backstack, show the back button
+        if(getSupportActionBar() != null){
+            getSupportActionBar().setDisplayHomeAsUpEnabled(mNavController.canPop());
+        }
     }
 
     @Override