Fix crash when block incoming call without caller ID

If caller phone number is empty, finish will be called
directly in onCreate without mBlockContactHelper being
created. Causing null object refernece in onDestory
function. Add a null checking to guard that.

CYNGNOS-3262 HAM-1455

Change-Id: I4e73fc52c815feec723e5b56ffee06375619a109

1 files changed, 3 insertions, 1 deletions

diff --git a/src/com/android/contacts/common/activity/BlockContactActivity.java b/src/com/android/contacts/common/activity/BlockContactActivity.java
index 9fd1b424..0abf6cbd 100644
--- a/src/com/android/contacts/common/activity/BlockContactActivity.java
+++ b/src/com/android/contacts/common/activity/BlockContactActivity.java
@@ -79,6 +79,8 @@ public class BlockContactActivity extends Activity implements BlockContactDialog
     @Override
     protected void onDestroy() {
         super.onDestroy();
-        mBlockContactHelper.destroy();
+        if (mBlockContactHelper != null) {
+            mBlockContactHelper.destroy();
+        }
     }
 }