First pass at USB-only tether settings.
bug:2281900
diff --git a/src/com/android/settings/TetherSettings.java b/src/com/android/settings/TetherSettings.java
new file mode 100644
index 0000000..0a63de3
--- /dev/null
+++ b/src/com/android/settings/TetherSettings.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2008 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;
+
+import android.os.Bundle;
+import android.os.SystemProperties;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.ConnectivityManager;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceScreen;
+import android.preference.CheckBoxPreference;
+import android.provider.Settings;
+import android.util.Log;
+
+/*
+ * Displays preferences for Tethering.
+ */
+public class TetherSettings extends PreferenceActivity {
+
+ private static final String ENABLE_TETHER_NOTICE = "enable_tether_notice";
+ private static final String USB_TETHER_SETTINGS = "usb_tether_settings";
+
+ private CheckBoxPreference mEnableTetherNotice;
+ private PreferenceScreen mUsbTether;
+
+ private BroadcastReceiver mTetherChangeReceiver;
+
+ @Override
+ protected void onCreate(Bundle icicle) {
+ super.onCreate(icicle);
+
+ addPreferencesFromResource(R.xml.tether_prefs);
+
+ mEnableTetherNotice = (CheckBoxPreference) findPreference(ENABLE_TETHER_NOTICE);
+ mUsbTether = (PreferenceScreen) findPreference(USB_TETHER_SETTINGS);
+ }
+
+ private class TetherChangeReceiver extends BroadcastReceiver {
+ public void onReceive(Context content, Intent intent) {
+ updateState(intent.getIntExtra(ConnectivityManager.EXTRA_AVAILABLE_TETHER_COUNT,0)>0,
+ intent.getIntExtra(ConnectivityManager.EXTRA_ACTIVE_TETHER_COUNT,0)>0);
+ }
+ }
+
+ @Override
+ protected void onResume() {
+ super.onResume();
+ mEnableTetherNotice.setChecked(Settings.Secure.getInt(getContentResolver(),
+ Settings.Secure.TETHER_NOTIFY, 0) != 0);
+
+ IntentFilter filter = new IntentFilter(ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
+ mTetherChangeReceiver = new TetherChangeReceiver();
+ registerReceiver(mTetherChangeReceiver, filter);
+
+ ConnectivityManager cm =
+ (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
+ updateState(cm.getTetherableIfaces().length>0, cm.getTetheredIfaces().length>0);
+ }
+
+ @Override
+ protected void onPause() {
+ super.onPause();
+ unregisterReceiver(mTetherChangeReceiver);
+ mTetherChangeReceiver = null;
+ }
+
+ private void updateState(boolean isAvailable, boolean isTethered) {
+ if (isTethered) {
+ mUsbTether.setSummary(R.string.usb_tethering_active_subtext);
+ mUsbTether.setEnabled(true);
+ } else if (isAvailable) {
+ mUsbTether.setSummary(R.string.usb_tethering_available_subtext);
+ mUsbTether.setEnabled(true);
+ } else {
+ mUsbTether.setSummary(R.string.usb_tethering_unavailable_subtext);
+ mUsbTether.setEnabled(false);
+ }
+ }
+
+ @Override
+ public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
+
+ if (preference == mEnableTetherNotice) {
+ boolean newState = mEnableTetherNotice.isChecked();
+ Settings.Secure.putInt(getContentResolver(),
+ Settings.Secure.TETHER_NOTIFY, newState ? 1 : 0);
+ return true;
+ }
+ return false;
+ }
+
+}