NormalActivity getMenuItem 非空判断

app/src/main/java/com/gh/gamecenter/NormalActivity.java

@@ -162,6 +162,7 @@ public class NormalActivity extends BaseActivity implements ToolbarController, T
 
     @Override
     public MenuItem getMenuItem(int res) {
+        if (mNormalToolbar == null) return null; //后续页面做好判断
         return mNormalToolbar.getMenu().findItem(res);
     }