[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);
+    }
+}

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

@@ -18,7 +18,6 @@ package com.android.settings.wifi.dpp;
 
 import android.app.settings.SettingsEnums;
 import android.content.Intent;
-import android.content.res.Resources;
 import android.net.Uri;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiInfo;
@@ -29,12 +28,9 @@ import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 
 import com.android.settings.R;
-import com.android.settings.SetupWizardUtils;
-import com.android.settings.core.InstrumentedActivity;
 
 import java.util.List;
 
@@ -55,7 +51,7 @@ import java.util.List;
  * For intent action {@link Settings#ACTION_PROCESS_WIFI_EASY_CONNECT_URI}, specify Wi-Fi
  * Easy Connect bootstrapping information string in Intent's data URI.
  */
-public class WifiDppConfiguratorActivity extends InstrumentedActivity implements
+public class WifiDppConfiguratorActivity extends WifiDppBaseActivity implements
         WifiNetworkConfig.Retriever,
         WifiDppQrCodeGeneratorFragment.OnQrCodeGeneratorFragmentAddButtonClickedListener,
         WifiDppQrCodeScannerFragment.OnScanWifiDppSuccessListener,
@@ -78,8 +74,6 @@ public class WifiDppConfiguratorActivity extends InstrumentedActivity implements
     private static final String KEY_WIFI_NETWORK_ID = "key_wifi_network_id";
     private static final String KEY_IS_HOTSPOT = "key_is_hotspot";
 
-    private FragmentManager mFragmentManager;
-
     /** The Wi-Fi network which will be configured */
     private WifiNetworkConfig mWifiNetworkConfig;
 
@@ -94,20 +88,10 @@ public class WifiDppConfiguratorActivity extends InstrumentedActivity implements
         return SettingsEnums.SETTINGS_WIFI_DPP_CONFIGURATOR;
     }
 
-    @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);
-    }
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        setContentView(R.layout.wifi_dpp_activity);
-        mFragmentManager = getSupportFragmentManager();
-
         if (savedInstanceState != null) {
             String qrCode = savedInstanceState.getString(KEY_QR_CODE);
 
@@ -122,12 +106,11 @@ public class WifiDppConfiguratorActivity extends InstrumentedActivity implements
 
             mWifiNetworkConfig = WifiNetworkConfig.getValidConfigOrNull(security, ssid,
                     preSharedKey, hiddenSsid, networkId, isHotspot);
-        } else {
-            handleIntent(getIntent());
         }
     }
 
-    private void handleIntent(Intent intent) {
+    @Override
+    protected void handleIntent(Intent intent) {
         boolean cancelActivity = false;
         WifiNetworkConfig config;
         switch (intent.getAction()) {

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

@@ -18,17 +18,12 @@ package com.android.settings.wifi.dpp;
 
 import android.app.settings.SettingsEnums;
 import android.content.Intent;
-import android.content.res.Resources;
-import android.os.Bundle;
 import android.util.Log;
 
 import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 
 import com.android.settings.R;
-import com.android.settings.SetupWizardUtils;
-import com.android.settings.core.InstrumentedActivity;
 
 /**
  * To provision "this" device with specified Wi-Fi network.
@@ -36,40 +31,20 @@ import com.android.settings.core.InstrumentedActivity;
  * To use intent action {@code ACTION_ENROLLEE_QR_CODE_SCANNER}, specify the SSID string of the
  * Wi-Fi network to be provisioned in {@code WifiDppUtils.EXTRA_WIFI_SSID}.
  */
-public class WifiDppEnrolleeActivity extends InstrumentedActivity implements
+public class WifiDppEnrolleeActivity extends WifiDppBaseActivity implements
         WifiDppQrCodeScannerFragment.OnScanWifiDppSuccessListener {
     private static final String TAG = "WifiDppEnrolleeActivity";
 
     public static final String ACTION_ENROLLEE_QR_CODE_SCANNER =
             "android.settings.WIFI_DPP_ENROLLEE_QR_CODE_SCANNER";
 
-    private FragmentManager mFragmentManager;
-
     @Override
     public int getMetricsCategory() {
         return SettingsEnums.SETTINGS_WIFI_DPP_ENROLLEE;
     }
 
     @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);
-    }
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        setContentView(R.layout.wifi_dpp_activity);
-        mFragmentManager = getSupportFragmentManager();
-
-        if (savedInstanceState == null) {
-            handleIntent(getIntent());
-        }
-    }
-
-    private void handleIntent(Intent intent) {
+    protected void handleIntent(Intent intent) {
         switch (intent.getAction()) {
             case ACTION_ENROLLEE_QR_CODE_SCANNER:
                 String ssid = intent.getStringExtra(WifiDppUtils.EXTRA_WIFI_SSID);