Add support for dagger injection with fragments

Convert NavigationBarFragment as a proof of concept and remove all
references to Dependency from NavigationBarFragment.

Test: atest SystemUITests
Change-Id: I0cdb5bc6ac455fce91e67b9e449cb7b78b1da9a4

1 files changed, 15 insertions, 1 deletions

diff --git a/tests/testables/src/android/testing/BaseFragmentTest.java b/tests/testables/src/android/testing/BaseFragmentTest.java
index 5fa065a9135a..d18c126a96c1 100644
--- a/tests/testables/src/android/testing/BaseFragmentTest.java
+++ b/tests/testables/src/android/testing/BaseFragmentTest.java
@@ -21,7 +21,9 @@ import android.app.Fragment;
 import android.app.FragmentController;
 import android.app.FragmentHostCallback;
 import android.app.FragmentManagerNonConfig;
+import android.content.Context;
 import android.graphics.PixelFormat;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.Parcelable;
 import android.support.test.InstrumentationRegistry;
@@ -75,7 +77,7 @@ public abstract class BaseFragmentTest {
         TestableLooper.get(this).runWithLooper(() -> {
             mHandler = new Handler();
 
-            mFragment = mCls.newInstance();
+            mFragment = instantiate(mContext, mCls.getName(), null);
             mFragments = FragmentController.createController(new HostCallbacks());
             mFragments.attachHost(null);
             mFragments.getFragmentManager().beginTransaction()
@@ -187,6 +189,13 @@ public abstract class BaseFragmentTest {
         TestableLooper.get(this).processAllMessages();
     }
 
+    /**
+     * Method available for override to replace fragment instantiation.
+     */
+    protected Fragment instantiate(Context context, String className, @Nullable Bundle arguments) {
+        return Fragment.instantiate(context, className, arguments);
+    }
+
     private View findViewById(int id) {
         return mView.findViewById(id);
     }
@@ -206,6 +215,11 @@ public abstract class BaseFragmentTest {
         }
 
         @Override
+        public Fragment instantiate(Context context, String className, Bundle arguments) {
+            return BaseFragmentTest.this.instantiate(context, className, arguments);
+        }
+
+        @Override
         public boolean onShouldSaveFragmentState(Fragment fragment) {
             return true; // True for now.
         }