Add AP support for tethering

First phase of the AP support in
UI and framework
Bug: 2421638

Change-Id: I0b6c31be5fe79bd4d33c292464d271b054754e8d

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

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2010 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 com.android.settings.R;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceScreen;
+import android.preference.CheckBoxPreference;
+import android.provider.Settings;
+import android.util.Log;
+import android.net.wifi.WifiConfiguration;
+import android.net.wifi.WifiManager;
+import android.os.Bundle;
+
+/*
+ * Displays preferences for Tethering.
+ */
+public class WifiApSettings extends PreferenceActivity
+        implements DialogInterface.OnClickListener, Preference.OnPreferenceChangeListener {
+
+    private static final String WIFI_AP_SSID_AND_SECURITY = "wifi_ap_ssid_and_security";
+    private static final String WIFI_AP_CHANNEL = "wifi_ap_channel";
+    private static final String ENABLE_WIFI_AP = "enable_wifi_ap";
+
+    private Preference mCreateNetwork;
+    private ListPreference mChannel;
+    private CheckBoxPreference mEnableWifiAp;
+
+    private WifiApDialog mDialog;
+    private WifiManager mWifiManager;
+    private WifiApEnabler mWifiApEnabler;
+    private WifiConfiguration mWifiConfig = null;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
+
+        addPreferencesFromResource(R.xml.wifi_ap_settings);
+
+        mCreateNetwork = findPreference(WIFI_AP_SSID_AND_SECURITY);
+        mChannel = (ListPreference) findPreference(WIFI_AP_CHANNEL);
+        mEnableWifiAp = (CheckBoxPreference) findPreference(ENABLE_WIFI_AP);
+
+        mWifiApEnabler = new WifiApEnabler(this, mEnableWifiAp);
+
+        initChannels();
+    }
+
+    public void initChannels() {
+        mChannel.setOnPreferenceChangeListener(this);
+
+        int numChannels = mWifiManager.getNumAllowedChannels();
+
+        String[] entries = new String[numChannels];
+        String[] entryValues = new String[numChannels];
+
+        for (int i = 1; i <= numChannels; i++) {
+            entries[i-1] = "Channel "+i;
+            entryValues[i-1] = i+"";
+        }
+
+        mChannel.setEntries(entries);
+        mChannel.setEntryValues(entryValues);
+        mChannel.setEnabled(true);
+        /**
+         * TODO: randomize initial channel chosen
+         */
+        mChannel.setValue("2");
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        mWifiApEnabler.resume();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        mWifiApEnabler.pause();
+    }
+
+    @Override
+    public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
+        if (preference == mCreateNetwork) {
+            showDialog();
+        }
+        return true;
+    }
+
+    private void showDialog() {
+        if (mDialog != null) {
+            mDialog.dismiss();
+        }
+        mDialog = new WifiApDialog(this, this, mWifiConfig);
+        mDialog.show();
+    }
+
+    public void onClick(DialogInterface dialogInterface, int button) {
+        /**
+         * TODO: Needs work
+         */
+        mWifiConfig = mDialog.getConfig();
+
+        if(mWifiConfig.SSID != null)
+            mCreateNetwork.setSummary(mWifiConfig.SSID);
+
+        /**
+         * TODO: set SSID and security
+         */
+    }
+
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        /**
+         * TODO: Needs work
+         */
+
+        String key = preference.getKey();
+        if (key == null) return true;
+
+        if (key.equals(WIFI_AP_CHANNEL)) {
+            int chosenChannel = Integer.parseInt((String) newValue);
+            if(newValue != null)
+                mChannel.setSummary(newValue.toString());
+        }
+        return true;
+    }
+}