[Wi-Fi] Add a new fragment for configuring a new AccessPoint network.

When configuring a new access point in Wi-Fi settings page, it's hard to figure out there are some other option items after you tapping the "Advanced options" button.

To improve it, use full screen fragment to present the configuration items, so user can see as many items as possible.

Bug: 31052996
Test: Mock this fragment and check each button status run as expected.
Change-Id: I1c8e552fcabb1414bb500d918ed61287bf4aece2

AndroidManifest.xml

@@ -162,8 +162,7 @@
         </receiver>
 
         <activity android:name=".SubSettings"
-                android:parentActivityName="Settings"
+                android:parentActivityName="Settings"/>
-                android:theme="@style/Theme.SubSettings"/>
 
         <activity android:name=".Settings$CreateShortcutActivity"
                   android:label="@string/settings_shortcut">

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

@@ -0,0 +1,175 @@
+/*
+ * 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.ActionBar;
+import android.app.Activity;
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import com.android.settings.R;
+import com.android.settings.core.InstrumentedFragment;
+import com.android.settingslib.wifi.AccessPoint;
+
+import androidx.annotation.VisibleForTesting;
+
+/**
+ * Detail page for configuring Wi-Fi network.
+ *
+ * The AccessPoint should be saved to the argument when launching this class in order to properly
+ * render this page.
+ */
+public class ConfigureAccessPointFragment extends InstrumentedFragment implements WifiConfigUiBase {
+
+    public static final String NETWORK_CONFIG_KEY = "network_config_key";
+
+    private static final int SUBMIT_BUTTON_ID = android.R.id.button1;
+    private static final int CANCEL_BUTTON_ID = android.R.id.button2;
+
+    private WifiConfigController mUiController;
+    private Button mSubmitBtn;
+    private Button mCancelBtn;
+    private AccessPoint mAccessPoint;
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        mAccessPoint = new AccessPoint(context, getArguments());
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.SETTINGS_WIFI_CONFIGURE_NETWORK;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        final View rootView = inflater.inflate(R.layout.wifi_add_network_view,
+                container, false /* attachToRoot */);
+
+        final Button neutral = rootView.findViewById(android.R.id.button3);
+        if (neutral != null) {
+            neutral.setVisibility(View.GONE);
+        }
+
+        mSubmitBtn = rootView.findViewById(SUBMIT_BUTTON_ID);
+        mCancelBtn = rootView.findViewById(CANCEL_BUTTON_ID);
+        mSubmitBtn.setOnClickListener(view -> handleSubmitAction());
+        mCancelBtn.setOnClickListener(view -> handleCancelAction());
+
+        mUiController = new WifiConfigController(this, rootView, mAccessPoint,
+                getMode(), false /* requestFocus */);
+
+        /**
+         * For this add AccessPoint UI, need to remove the Home button, so set related feature as
+         * false.
+         */
+        final ActionBar actionBar = getActivity().getActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(false);
+            actionBar.setHomeButtonEnabled(false);
+            actionBar.setDisplayShowHomeEnabled(false);
+        }
+
+        return rootView;
+    }
+
+    @Override
+    public void onViewStateRestored(Bundle savedInstanceState) {
+        super.onViewStateRestored(savedInstanceState);
+        mUiController.updatePassword();
+    }
+
+    @Override
+    public int getMode() {
+        return WifiConfigUiBase.MODE_CONNECT;
+    }
+
+    @Override
+    public WifiConfigController getController() {
+        return mUiController;
+    }
+
+    @Override
+    public void dispatchSubmit() {
+        // Do nothing
+    }
+
+    @Override
+    public void setTitle(int id) {
+        getActivity().setTitle(id);
+    }
+
+    @Override
+    public void setTitle(CharSequence title) {
+        getActivity().setTitle(title);
+    }
+
+    @Override
+    public void setSubmitButton(CharSequence text) {
+        mSubmitBtn.setText(text);
+    }
+
+    @Override
+    public void setCancelButton(CharSequence text) {
+        mCancelBtn.setText(text);
+    }
+
+    @Override
+    public void setForgetButton(CharSequence text) {
+        // AddNetwork doesn't need forget button.
+    }
+
+    @Override
+    public Button getSubmitButton() {
+        return mSubmitBtn;
+    }
+
+    @Override
+    public Button getCancelButton() {
+        return mCancelBtn;
+    }
+
+    @Override
+    public Button getForgetButton() {
+        // AddNetwork doesn't need forget button.
+        return null;
+    }
+
+    @VisibleForTesting
+    void handleSubmitAction() {
+        final Intent intent = new Intent();
+        final Activity activity = getActivity();
+        intent.putExtra(NETWORK_CONFIG_KEY, mUiController.getConfig());
+        activity.setResult(Activity.RESULT_OK, intent);
+        activity.finish();
+    }
+
+    @VisibleForTesting
+    void handleCancelAction() {
+        final Activity activity = getActivity();
+        activity.setResult(Activity.RESULT_CANCELED);
+        activity.finish();
+    }
+}

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

@@ -173,6 +173,7 @@ public class WifiConfigController implements TextWatcher,
     private ProxySettings mProxySettings = ProxySettings.UNASSIGNED;
     private ProxyInfo mHttpProxy = null;
     private StaticIpConfiguration mStaticIpConfiguration = null;
+    private boolean mRequestFocus = true;
 
     private String[] mLevels;
     private int mMode;
@@ -187,11 +188,17 @@ public class WifiConfigController implements TextWatcher,
 
     public WifiConfigController(WifiConfigUiBase parent, View view, AccessPoint accessPoint,
             int mode) {
+        this (parent, view, accessPoint, mode, true /* requestFocus */);
+    }
+
+    public WifiConfigController(WifiConfigUiBase parent, View view, AccessPoint accessPoint,
+            int mode, boolean requestFocus) {
         mConfigUi = parent;
 
         mView = view;
         mAccessPoint = accessPoint;
         mContext = mConfigUi.getContext();
+        mRequestFocus = requestFocus;
 
         // Init Wi-Fi manager
         mWifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
@@ -420,9 +427,11 @@ public class WifiConfigController implements TextWatcher,
             enableSubmitIfAppropriate();
         }
 
-        // After done view show and hide, request focus from parent view
+        // After done view show and hide, request focus from parameter.
+        if (mRequestFocus) {
             mView.findViewById(R.id.l_wifidialog).requestFocus();
         }
+    }
 
     @VisibleForTesting
     boolean isSplitSystemUser() {

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

@@ -50,10 +50,6 @@ import android.view.MenuItem;
 import android.view.View;
 import android.widget.Toast;
 
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceCategory;
-
 import com.android.settings.LinkifyUtils;
 import com.android.settings.R;
 import com.android.settings.RestrictedSettingsFragment;
@@ -61,8 +57,8 @@ import com.android.settings.SettingsActivity;
 import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.dashboard.SummaryLoader;
-import com.android.settings.datausage.DataUsageUtils;
 import com.android.settings.datausage.DataUsagePreference;
+import com.android.settings.datausage.DataUsageUtils;
 import com.android.settings.location.ScanningSettings;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.search.Indexable;
@@ -84,6 +80,10 @@ import com.android.settingslib.wifi.WifiTrackerFactory;
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+
 /**
  * Two types of UI are provided here.
  *
@@ -109,6 +109,8 @@ public class WifiSettings extends RestrictedSettingsFragment
     @VisibleForTesting
     static final int ADD_NETWORK_REQUEST = 2;
 
+    static final int CONFIG_NETWORK_REQUEST = 3;
+
     // Instance state keys
     private static final String SAVE_DIALOG_MODE = "dialog_mode";
     private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state";
@@ -427,6 +429,11 @@ public class WifiSettings extends RestrictedSettingsFragment
                 mWifiTracker.resumeScanning();
             }
             return;
+        } else if (requestCode == CONFIG_NETWORK_REQUEST) {
+            if (resultCode == Activity.RESULT_OK) {
+                handleConfigNetworkSubmitEvent(data);
+            }
+            return;
         }
 
         final boolean formerlyRestricted = mIsRestricted;
@@ -559,7 +566,10 @@ public class WifiSettings extends RestrictedSettingsFragment
                     break;
 
                 default:
-                    showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT);
+                    final Bundle bundle = ((LongPressAccessPointPreference) preference).getExtras();
+                    mSelectedAccessPoint.saveWifiState(bundle);
+                    launchConfigNewNetworkFragment(mSelectedAccessPoint,
+                            WifiConfigUiBase.MODE_CONNECT, bundle);
                     break;
             }
         } else if (preference == mAddWifiNetworkPreference) {
@@ -1253,4 +1263,30 @@ public class WifiSettings extends RestrictedSettingsFragment
             return new SummaryProvider(activity, summaryLoader);
         }
     };
+
+    private void handleConfigNetworkSubmitEvent(Intent data) {
+        final WifiConfiguration wifiConfiguration = data.getParcelableExtra(
+                ConfigureAccessPointFragment.NETWORK_CONFIG_KEY);
+        if (wifiConfiguration != null) {
+            mWifiManager.save(wifiConfiguration, mSaveListener);
+
+            if (mSelectedAccessPoint != null) {
+                connect(wifiConfiguration, false /*isSavedNetwork*/);
+            }
+            mWifiTracker.resumeScanning();
+        }
+    }
+
+    private void launchConfigNewNetworkFragment(AccessPoint accessPoint, int dialogMode,
+            Bundle bundleForArguments) {
+        mDialogMode = dialogMode;
+        final CharSequence title = accessPoint.getTitle();
+        new SubSettingLauncher(getContext())
+                .setTitleText(title)
+                .setDestination(ConfigureAccessPointFragment.class.getName())
+                .setArguments(bundleForArguments)
+                .setSourceMetricsCategory(getMetricsCategory())
+                .setResultListener(this, CONFIG_NETWORK_REQUEST)
+                .launch();
+    }
 }

tests/robotests/src/com/android/settings/wifi/ConfigureAccessPointFragmentTest.java

@@ -0,0 +1,93 @@
+/*
+ * 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 static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.app.settings.SettingsEnums;
+import android.os.Bundle;
+
+import com.android.settings.testutils.shadow.ShadowConnectivityManager;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.androidx.fragment.FragmentController;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = ShadowConnectivityManager.class)
+public class ConfigureAccessPointFragmentTest {
+
+    private static final String KEY_SSID = "key_ssid";
+    private static final String KEY_SECURITY = "key_security";
+
+    private ConfigureAccessPointFragment mConfigureAccessPointFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        Bundle bundle = new Bundle();
+
+        bundle.putString(KEY_SSID, "Test AP");
+        bundle.putInt(KEY_SECURITY, 1 /* WEP */);
+        mConfigureAccessPointFragment = spy(new ConfigureAccessPointFragment());
+        mConfigureAccessPointFragment.setArguments(bundle);
+        FragmentController.setupFragment(mConfigureAccessPointFragment);
+    }
+
+    @Test
+    public void getMetricsCategory_shouldReturnConfigureNetwork() {
+        assertThat(mConfigureAccessPointFragment.getMetricsCategory()).isEqualTo(
+                SettingsEnums.SETTINGS_WIFI_CONFIGURE_NETWORK);
+    }
+
+    @Test
+    public void getMode_shouldBeModeConnected() {
+        assertThat(mConfigureAccessPointFragment.getMode()).isEqualTo(
+                WifiConfigUiBase.MODE_CONNECT);
+    }
+
+    @Test
+    public void launchFragment_shouldShowSubmitButton() {
+        assertThat(mConfigureAccessPointFragment.getSubmitButton()).isNotNull();
+    }
+
+    @Test
+    public void launchFragment_shouldShowCancelButton() {
+        assertThat(mConfigureAccessPointFragment.getCancelButton()).isNotNull();
+    }
+
+    @Test
+    public void onClickSubmitButton_shouldHandleSubmitAction() {
+        mConfigureAccessPointFragment.getSubmitButton().performClick();
+
+        verify(mConfigureAccessPointFragment).handleSubmitAction();
+    }
+
+    @Test
+    public void onClickCancelButton_shouldHandleCancelAction() {
+        mConfigureAccessPointFragment.getCancelButton().performClick();
+
+        verify(mConfigureAccessPointFragment).handleCancelAction();
+    }
+}