[NetworkRequest] Implement Single Specified SSID ALTERNATE FLOW V2

Implement new flow for Single SSID mode of NetworkRequestDialog.
There is a new design for single SSID mode of NetworkRequestDialog.

Bug: b/132904234
Test: make RunSettingsRoboTests -j32 ROBOTEST_FILTER=com.android.settings.wifi
Change-Id: Ice19842243ea6f24a3ea74cf6e90a473080b8983

src/com/android/settings/wifi/NetworkRequestDialogBaseFragment.java

@@ -0,0 +1,90 @@
+/*
+ * 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;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.wifi.ScanResult;
+import android.net.wifi.WifiConfiguration;
+import android.net.wifi.WifiManager.NetworkRequestUserSelectionCallback;
+import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
+import com.android.settings.R;
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
+import java.util.List;
+
+/**
+ * This is base fragment of {@link NetworkRequestDialogFragment} and
+ * {@link NetworkRequestSingleSsidDialogFragment} to handle activity callback methods.
+ */
+abstract public class NetworkRequestDialogBaseFragment extends InstrumentedDialogFragment {
+
+    @VisibleForTesting
+    final static String EXTRA_APP_NAME = "com.android.settings.wifi.extra.APP_NAME";
+
+    NetworkRequestDialogActivity mActivity = null;
+
+    protected String getTitle() {
+        final Intent intent = getActivity().getIntent();
+        String appName = "";
+        if (intent != null) {
+            appName = intent.getStringExtra(EXTRA_APP_NAME);
+        }
+
+        return getString(R.string.network_connection_request_dialog_title, appName);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.WIFI_SCANNING_NEEDED_DIALOG;
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        if (context instanceof NetworkRequestDialogActivity) {
+            mActivity = (NetworkRequestDialogActivity) context;
+        }
+    }
+
+    @Override
+    public void onDetach() {
+        super.onDetach();
+        mActivity = null;
+    }
+
+    @Override
+    public void onCancel(@NonNull DialogInterface dialog) {
+        super.onCancel(dialog);
+
+        if (mActivity != null) {
+            mActivity.onCancel();
+        }
+    }
+
+    protected void onUserSelectionCallbackRegistration(
+            NetworkRequestUserSelectionCallback userSelectionCallback) {
+    }
+
+    protected void onMatch(List<ScanResult> scanResults) {
+    }
+
+    protected void onUserSelectionConnectFailure(WifiConfiguration wificonfiguration) {
+    }
+}