Fix NPE in onListFragmentScrollStateChange

Ensure that view passed into DialerUtils.hideInputMethod is
never null (since mParentLayout refers to the main content view, it
should never be null)

Also rename parentLayout to mParentLayout

Bug: 17797827
Change-Id: I2ac9864138776fcdaea5b7d2df52a82d31911039

1 files changed, 7 insertions, 7 deletions

diff --git a/src/com/android/dialer/DialtactsActivity.java b/src/com/android/dialer/DialtactsActivity.java
index 8c5b9c58e..7071e5137 100644
--- a/src/com/android/dialer/DialtactsActivity.java
+++ b/src/com/android/dialer/DialtactsActivity.java
@@ -135,7 +135,7 @@ public class DialtactsActivity extends TransactionSafeActivity implements View.O
 
     private static final int ACTIVITY_REQUEST_CODE_VOICE_SEARCH = 1;
 
-    private FrameLayout parentLayout;
+    private FrameLayout mParentLayout;
 
     /**
      * Fragment containing the dialpad that slides into view
@@ -421,8 +421,8 @@ public class DialtactsActivity extends TransactionSafeActivity implements View.O
 
         mSlideOut.setAnimationListener(mSlideOutListener);
 
-        parentLayout = (FrameLayout) findViewById(R.id.dialtacts_mainlayout);
-        parentLayout.setOnDragListener(new LayoutOnDragListener());
+        mParentLayout = (FrameLayout) findViewById(R.id.dialtacts_mainlayout);
+        mParentLayout.setOnDragListener(new LayoutOnDragListener());
         floatingActionButtonContainer.getViewTreeObserver().addOnGlobalLayoutListener(
                 new ViewTreeObserver.OnGlobalLayoutListener() {
                     @Override
@@ -433,7 +433,7 @@ public class DialtactsActivity extends TransactionSafeActivity implements View.O
                             return;
                         }
                         observer.removeOnGlobalLayoutListener(this);
-                        int screenWidth = parentLayout.getWidth();
+                        int screenWidth = mParentLayout.getWidth();
                         mFloatingActionButtonController.setScreenWidth(screenWidth);
                         updateFloatingActionButtonControllerAlignment(false /* animate */);
                     }
@@ -933,7 +933,7 @@ public class DialtactsActivity extends TransactionSafeActivity implements View.O
             hideDialpadFragment(true, false);
         } else if (isInSearchUi()) {
             exitSearchUi();
-            DialerUtils.hideInputMethod(parentLayout);
+            DialerUtils.hideInputMethod(mParentLayout);
         } else {
             super.onBackPressed();
         }
@@ -945,7 +945,7 @@ public class DialtactsActivity extends TransactionSafeActivity implements View.O
     private boolean maybeExitSearchUi() {
         if (isInSearchUi() && TextUtils.isEmpty(mSearchQuery)) {
             exitSearchUi();
-            DialerUtils.hideInputMethod(parentLayout);
+            DialerUtils.hideInputMethod(mParentLayout);
             return true;
         }
         return false;
@@ -982,7 +982,7 @@ public class DialtactsActivity extends TransactionSafeActivity implements View.O
     public void onListFragmentScrollStateChange(int scrollState) {
         if (scrollState == OnScrollListener.SCROLL_STATE_TOUCH_SCROLL) {
             hideDialpadFragment(true, false);
-            DialerUtils.hideInputMethod(getCurrentFocus());
+            DialerUtils.hideInputMethod(mParentLayout);
         }
     }