[adb-wireless] Add Wireless Debugging Switch in Developer options.

Bug: 111434128
Bug: 119492574

Test: make RunSettingsRoboTests ROBOTEST_FILTER=WirelessDebugging
Change-Id: I188badb43035172642cf235bb27e56d3a1dea169

src/com/android/settings/development/AdbIpAddressPreferenceController.java

@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2020 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.development;
+
+import android.content.Context;
+import android.debug.IAdbManager;
+import android.net.ConnectivityManager;
+import android.net.LinkProperties;
+import android.net.wifi.WifiManager;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.util.Log;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.deviceinfo.AbstractConnectivityPreferenceController;
+
+import java.net.Inet4Address;
+import java.net.InetAddress;
+import java.util.Iterator;
+
+/**
+ * Controller for the ip address preference in the Wireless debugging
+ * fragment.
+ */
+public class AdbIpAddressPreferenceController extends AbstractConnectivityPreferenceController {
+    private static final String TAG = "AdbIpAddrPrefCtrl";
+
+    private static final String[] CONNECTIVITY_INTENTS = {
+            ConnectivityManager.CONNECTIVITY_ACTION,
+            WifiManager.ACTION_LINK_CONFIGURATION_CHANGED,
+            WifiManager.NETWORK_STATE_CHANGED_ACTION,
+    };
+
+    private static final String PREF_KEY = "adb_ip_addr_pref";
+    private Preference mAdbIpAddrPref;
+    private int mPort;
+    private final ConnectivityManager mCM;
+    private IAdbManager mAdbManager;
+
+    public AdbIpAddressPreferenceController(Context context, Lifecycle lifecycle) {
+        super(context, lifecycle);
+        mCM = context.getSystemService(ConnectivityManager.class);
+        mAdbManager = IAdbManager.Stub.asInterface(ServiceManager.getService(
+                Context.ADB_SERVICE));
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREF_KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mAdbIpAddrPref = screen.findPreference(PREF_KEY);
+        updateConnectivity();
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        super.updateState(preference);
+        updateConnectivity();
+    }
+
+    @Override
+    protected String[] getConnectivityIntents() {
+        return CONNECTIVITY_INTENTS;
+    }
+
+    protected int getPort() {
+        try {
+            return mAdbManager.getAdbWirelessPort();
+        } catch (RemoteException e) {
+            Log.e(TAG, "Unable to get the adbwifi port");
+        }
+        return 0;
+    }
+
+    public String getIpv4Address() {
+        return getDefaultIpAddresses(mCM);
+    }
+
+    @Override
+    protected void updateConnectivity() {
+        String ipAddress = getDefaultIpAddresses(mCM);
+        if (ipAddress != null) {
+            int port = getPort();
+            if (port <= 0) {
+                mAdbIpAddrPref.setSummary(R.string.status_unavailable);
+            } else {
+                ipAddress += ":" + port;
+            }
+            mAdbIpAddrPref.setSummary(ipAddress);
+        } else {
+            mAdbIpAddrPref.setSummary(R.string.status_unavailable);
+        }
+    }
+
+    /**
+     * Returns the default link's IP addresses, if any, taking into account IPv4 and IPv6 style
+     * addresses.
+     * @param cm ConnectivityManager
+     * @return the formatted and newline-separated IP addresses, or null if none.
+     */
+    private static String getDefaultIpAddresses(ConnectivityManager cm) {
+        LinkProperties prop = cm.getActiveLinkProperties();
+        return formatIpAddresses(prop);
+    }
+
+    private static String formatIpAddresses(LinkProperties prop) {
+        if (prop == null) {
+            return null;
+        }
+
+        Iterator<InetAddress> iter = prop.getAllAddresses().iterator();
+        // If there are no entries, return null
+        if (!iter.hasNext()) {
+            return null;
+        }
+
+        // Concatenate all available addresses, newline separated
+        StringBuilder addresses = new StringBuilder();
+        while (iter.hasNext()) {
+            InetAddress addr = iter.next();
+            if (addr instanceof Inet4Address) {
+                // adb only supports ipv4 at the moment
+                addresses.append(addr.getHostAddress());
+                break;
+            }
+        }
+        return addresses.toString();
+    }
+}