1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.phone.settings; 18 19 import android.content.Context; 20 import android.media.AudioManager; 21 import android.os.Bundle; 22 import android.preference.Preference; 23 import android.preference.PreferenceFragment; 24 import android.preference.PreferenceScreen; 25 import android.preference.SwitchPreference; 26 import android.provider.Settings; 27 import android.telephony.CarrierConfigManager; 28 import android.telephony.PhoneStateListener; 29 import android.telephony.SubscriptionManager; 30 import android.telephony.TelephonyManager; 31 import android.util.Log; 32 33 import com.android.ims.ImsManager; 34 import com.android.internal.telephony.Phone; 35 import com.android.internal.telephony.PhoneFactory; 36 import com.android.phone.PhoneGlobals; 37 import com.android.phone.R; 38 39 public class AccessibilitySettingsFragment extends PreferenceFragment { 40 private static final String LOG_TAG = AccessibilitySettingsFragment.class.getSimpleName(); 41 private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2); 42 43 private static final String BUTTON_TTY_KEY = "button_tty_mode_key"; 44 private static final String BUTTON_HAC_KEY = "button_hac_key"; 45 private static final String BUTTON_RTT_KEY = "button_rtt_key"; 46 private static final String RTT_INFO_PREF = "button_rtt_more_information_key"; 47 48 private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 49 /** 50 * Disable the TTY setting when in/out of a call (and if carrier doesn't 51 * support VoLTE with TTY). 52 * @see android.telephony.PhoneStateListener#onCallStateChanged(int, 53 * java.lang.String) 54 */ 55 @Override 56 public void onCallStateChanged(int state, String incomingNumber) { 57 if (DBG) Log.d(LOG_TAG, "PhoneStateListener.onCallStateChanged: state=" + state); 58 Preference pref = getPreferenceScreen().findPreference(BUTTON_TTY_KEY); 59 if (pref != null) { 60 // Use TelephonyManager#getCallState instead of 'state' parameter because 61 // needs to check the current state of all phone calls to 62 // support multi sim configuration. 63 TelephonyManager telephonyManager = 64 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 65 final boolean isVolteTtySupported = getVolteTtySupported(); 66 final boolean isVolteCurrentlyEnabled = 67 ImsManager.isVolteEnabledByPlatform(mContext); 68 pref.setEnabled((isVolteTtySupported && isVolteCurrentlyEnabled && 69 !isVideoCallOrConferenceInProgress()) || 70 (telephonyManager.getCallState() == TelephonyManager.CALL_STATE_IDLE)); 71 } 72 } 73 }; 74 75 private Context mContext; 76 private AudioManager mAudioManager; 77 78 private TtyModeListPreference mButtonTty; 79 private SwitchPreference mButtonHac; 80 private SwitchPreference mButtonRtt; 81 82 @Override onCreate(Bundle savedInstanceState)83 public void onCreate(Bundle savedInstanceState) { 84 super.onCreate(savedInstanceState); 85 86 mContext = getActivity().getApplicationContext(); 87 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 88 89 addPreferencesFromResource(R.xml.accessibility_settings); 90 91 mButtonTty = (TtyModeListPreference) findPreference( 92 getResources().getString(R.string.tty_mode_key)); 93 mButtonHac = (SwitchPreference) findPreference(BUTTON_HAC_KEY); 94 mButtonRtt = (SwitchPreference) findPreference(BUTTON_RTT_KEY); 95 96 if (PhoneGlobals.getInstance().phoneMgr.isTtyModeSupported() && isTtySupportedByCarrier()) { 97 mButtonTty.init(); 98 } else { 99 getPreferenceScreen().removePreference(mButtonTty); 100 mButtonTty = null; 101 } 102 103 if (PhoneGlobals.getInstance().phoneMgr.isHearingAidCompatibilitySupported()) { 104 int hac = Settings.System.getInt(mContext.getContentResolver(), 105 Settings.System.HEARING_AID, SettingsConstants.HAC_DISABLED); 106 mButtonHac.setChecked(hac == SettingsConstants.HAC_ENABLED); 107 } else { 108 getPreferenceScreen().removePreference(mButtonHac); 109 mButtonHac = null; 110 } 111 112 if (PhoneGlobals.getInstance().phoneMgr 113 .isRttSupported(SubscriptionManager.getDefaultVoiceSubscriptionId())) { 114 // TODO: this is going to be a on/off switch for now. Ask UX about how to integrate 115 // this settings with TTY 116 boolean rttOn = Settings.Secure.getInt( 117 mContext.getContentResolver(), Settings.Secure.RTT_CALLING_MODE, 0) != 0; 118 mButtonRtt.setChecked(rttOn); 119 } else { 120 getPreferenceScreen().removePreference(mButtonRtt); 121 Preference rttInfoPref = findPreference(RTT_INFO_PREF); 122 getPreferenceScreen().removePreference(rttInfoPref); 123 mButtonRtt = null; 124 } 125 } 126 127 @Override onResume()128 public void onResume() { 129 super.onResume(); 130 TelephonyManager tm = 131 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 132 tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 133 } 134 135 @Override onPause()136 public void onPause() { 137 super.onPause(); 138 TelephonyManager tm = 139 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 140 tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE); 141 } 142 143 @Override onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference)144 public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { 145 if (preference == mButtonTty) { 146 return true; 147 } else if (preference == mButtonHac) { 148 int hac = mButtonHac.isChecked() 149 ? SettingsConstants.HAC_ENABLED : SettingsConstants.HAC_DISABLED; 150 // Update HAC value in Settings database. 151 Settings.System.putInt(mContext.getContentResolver(), Settings.System.HEARING_AID, hac); 152 153 // Update HAC Value in AudioManager. 154 mAudioManager.setParameter(SettingsConstants.HAC_KEY, 155 hac == SettingsConstants.HAC_ENABLED 156 ? SettingsConstants.HAC_VAL_ON : SettingsConstants.HAC_VAL_OFF); 157 return true; 158 } else if (preference == mButtonRtt) { 159 Log.i(LOG_TAG, "RTT setting changed -- now " + mButtonRtt.isChecked()); 160 int rttMode = mButtonRtt.isChecked() ? 1 : 0; 161 Settings.Secure.putInt(mContext.getContentResolver(), Settings.Secure.RTT_CALLING_MODE, 162 rttMode); 163 // Update RTT config with IMS Manager 164 ImsManager imsManager = ImsManager.getInstance(getContext(), 165 SubscriptionManager.getDefaultVoicePhoneId()); 166 imsManager.setRttEnabled(mButtonRtt.isChecked()); 167 return true; 168 } 169 170 return false; 171 } 172 getVolteTtySupported()173 private boolean getVolteTtySupported() { 174 CarrierConfigManager configManager = 175 (CarrierConfigManager) mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE); 176 return configManager.getConfig().getBoolean( 177 CarrierConfigManager.KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL); 178 } 179 isVideoCallOrConferenceInProgress()180 private boolean isVideoCallOrConferenceInProgress() { 181 final Phone[] phones = PhoneFactory.getPhones(); 182 if (phones == null) { 183 if (DBG) Log.d(LOG_TAG, "isVideoCallOrConferenceInProgress: No phones found."); 184 return false; 185 } 186 187 for (Phone phone : phones) { 188 if (phone.isImsVideoCallOrConferencePresent()) { 189 return true; 190 } 191 } 192 return false; 193 } 194 195 /** 196 * Determines if the device supports TTY per carrier config. 197 * @return {@code true} if the carrier supports TTY, {@code false} otherwise. 198 */ isTtySupportedByCarrier()199 private boolean isTtySupportedByCarrier() { 200 CarrierConfigManager configManager = 201 (CarrierConfigManager) mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE); 202 return configManager.getConfig().getBoolean( 203 CarrierConfigManager.KEY_TTY_SUPPORTED_BOOL); 204 } 205 } 206