Apply fade transition for font size and display size Suw page

- Create font size & screen size controler to simply xml
- Add onPuase animation

Bug: 194447311
Test: atest AccessibilityScreenSizeForSetupWizardActivityTest
Test: atest FontSizePreferenceControllerTest
Test: atest ScreenSizePreferenceControllerTest
Change-Id: I91f3fd4c22aba4f8cd46f6e82e50987544942245

src/com/android/settings/accessibility/ScreenSizePreferenceController.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityScreenSizeForSetupWizardActivity.VISION_FRAGMENT_NO;
+import static com.android.settings.core.SettingsBaseActivity.EXTRA_PAGE_TRANSITION_TYPE;
+
+import android.content.Context;
+import android.content.Intent;
+
+import androidx.preference.Preference;
+
+import com.android.settings.accessibility.AccessibilityScreenSizeForSetupWizardActivity.FragmentType;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.transition.SettingsTransitionHelper.TransitionType;
+
+/** PreferenceController for displaying screen size page. */
+public class ScreenSizePreferenceController extends BasePreferenceController {
+
+    public ScreenSizePreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (!mPreferenceKey.equals(preference.getKey())) {
+            return false;
+        }
+
+        final Intent intent = new Intent(mContext,
+                AccessibilityScreenSizeForSetupWizardActivity.class);
+        intent.putExtra(VISION_FRAGMENT_NO, FragmentType.SCREEN_SIZE);
+        intent.putExtra(EXTRA_PAGE_TRANSITION_TYPE, TransitionType.TRANSITION_FADE);
+        mContext.startActivity(intent);
+        return true;
+    }
+}