[Wi-Fi DPP] Add a parent class for WifiDppConfiguratorActivity and WifiDppEnrolleeActivity

To reduce duplicate code.

Bug: 129305770
Test: atest com.android.settings.wifi.dpp
Change-Id: I3046c7d6dd7159a9a7dd7766370a65c0f5b3150e

src/com/android/settings/wifi/dpp/WifiDppBaseActivity.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2019 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.wifi.dpp;
+
+import android.content.Intent;
+import android.content.res.Resources;
+import android.os.Bundle;
+
+import androidx.fragment.app.FragmentManager;
+
+import com.android.settings.R;
+import com.android.settings.SetupWizardUtils;
+import com.android.settings.core.InstrumentedActivity;
+
+abstract class WifiDppBaseActivity extends InstrumentedActivity {
+    protected FragmentManager mFragmentManager;
+
+    protected abstract void handleIntent(Intent intent);
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.wifi_dpp_activity);
+        mFragmentManager = getSupportFragmentManager();
+
+        if (savedInstanceState == null) {
+            handleIntent(getIntent());
+        }
+    }
+
+    @Override
+    protected void onApplyThemeResource(Resources.Theme theme, int resid, boolean first) {
+        resid = SetupWizardUtils.getTheme(getIntent());
+        theme.applyStyle(R.style.SetupWizardPartnerResource, /* force */ true);
+        super.onApplyThemeResource(theme, resid, first);
+    }
+}