Improve FragmentDelegateImpl

arms/src/main/java/com/jess/arms/base/delegate/FragmentDelegateImpl.java

@@ -45,14 +45,14 @@ public class FragmentDelegateImpl implements FragmentDelegate {
     private Unbinder mUnbinder;
 
 
-    public FragmentDelegateImpl(android.support.v4.app.FragmentManager fragmentManager, android.support.v4.app.Fragment fragment) {
+    public FragmentDelegateImpl(@NonNull android.support.v4.app.FragmentManager fragmentManager, @NonNull android.support.v4.app.Fragment fragment) {
         this.mFragmentManager = fragmentManager;
         this.mFragment = fragment;
         this.iFragment = (IFragment) fragment;
     }
 
     @Override
-    public void onAttach(Context context) {
+    public void onAttach(@NonNull Context context) {
 
     }