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.CheckBoxPreference; 23 import android.preference.Preference; 24 import android.preference.PreferenceFragment; 25 import android.preference.PreferenceScreen; 26 import android.provider.Settings; 27 import android.telecom.TelecomManager; 28 import android.telephony.CarrierConfigManager; 29 import android.telephony.PhoneStateListener; 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 import com.android.phone.settings.TtyModeListPreference; 39 40 import java.util.List; 41 42 public class AccessibilitySettingsFragment extends PreferenceFragment { 43 private static final String LOG_TAG = AccessibilitySettingsFragment.class.getSimpleName(); 44 private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2); 45 46 private static final String BUTTON_TTY_KEY = "button_tty_mode_key"; 47 private static final String BUTTON_HAC_KEY = "button_hac_key"; 48 49 private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 50 /** 51 * Disable the TTY setting when in/out of a call (and if carrier doesn't 52 * support VoLTE with TTY). 53 * @see android.telephony.PhoneStateListener#onCallStateChanged(int, 54 * java.lang.String) 55 */ 56 @Override 57 public void onCallStateChanged(int state, String incomingNumber) { 58 if (DBG) Log.d(LOG_TAG, "PhoneStateListener.onCallStateChanged: state=" + state); 59 Preference pref = getPreferenceScreen().findPreference(BUTTON_TTY_KEY); 60 if (pref != null) { 61 final boolean isVolteTtySupported = ImsManager.isVolteEnabledByPlatform(mContext) 62 && getVolteTtySupported(); 63 pref.setEnabled((isVolteTtySupported && !isVideoCallInProgress()) || 64 (state == TelephonyManager.CALL_STATE_IDLE)); 65 } 66 } 67 }; 68 69 private Context mContext; 70 private AudioManager mAudioManager; 71 72 private TtyModeListPreference mButtonTty; 73 private CheckBoxPreference mButtonHac; 74 75 @Override onCreate(Bundle savedInstanceState)76 public void onCreate(Bundle savedInstanceState) { 77 super.onCreate(savedInstanceState); 78 79 mContext = getActivity().getApplicationContext(); 80 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 81 82 addPreferencesFromResource(R.xml.accessibility_settings); 83 84 mButtonTty = (TtyModeListPreference) findPreference( 85 getResources().getString(R.string.tty_mode_key)); 86 mButtonHac = (CheckBoxPreference) findPreference(BUTTON_HAC_KEY); 87 88 if (PhoneGlobals.getInstance().phoneMgr.isTtyModeSupported()) { 89 mButtonTty.init(); 90 } else { 91 getPreferenceScreen().removePreference(mButtonTty); 92 mButtonTty = null; 93 } 94 95 if (PhoneGlobals.getInstance().phoneMgr.isHearingAidCompatibilitySupported()) { 96 int hac = Settings.System.getInt(mContext.getContentResolver(), 97 Settings.System.HEARING_AID, SettingsConstants.HAC_DISABLED); 98 mButtonHac.setChecked(hac == SettingsConstants.HAC_ENABLED); 99 } else { 100 getPreferenceScreen().removePreference(mButtonHac); 101 mButtonHac = null; 102 } 103 } 104 105 @Override onResume()106 public void onResume() { 107 super.onResume(); 108 TelephonyManager tm = 109 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 110 tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 111 } 112 113 @Override onPause()114 public void onPause() { 115 super.onPause(); 116 TelephonyManager tm = 117 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 118 tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE); 119 } 120 121 @Override onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference)122 public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { 123 if (preference == mButtonTty) { 124 return true; 125 } else if (preference == mButtonHac) { 126 int hac = mButtonHac.isChecked() 127 ? SettingsConstants.HAC_ENABLED : SettingsConstants.HAC_DISABLED; 128 // Update HAC value in Settings database. 129 Settings.System.putInt(mContext.getContentResolver(), Settings.System.HEARING_AID, hac); 130 131 // Update HAC Value in AudioManager. 132 mAudioManager.setParameter(SettingsConstants.HAC_KEY, 133 hac == SettingsConstants.HAC_ENABLED 134 ? SettingsConstants.HAC_VAL_ON : SettingsConstants.HAC_VAL_OFF); 135 return true; 136 } 137 return false; 138 } 139 getVolteTtySupported()140 private boolean getVolteTtySupported() { 141 CarrierConfigManager configManager = 142 (CarrierConfigManager) mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE); 143 return configManager.getConfig().getBoolean( 144 CarrierConfigManager.KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL); 145 } 146 isVideoCallInProgress()147 private boolean isVideoCallInProgress() { 148 final Phone[] phones = PhoneFactory.getPhones(); 149 if (phones == null) { 150 if (DBG) Log.d(LOG_TAG, "isVideoCallInProgress: No phones found. Return false"); 151 return false; 152 } 153 154 for (Phone phone : phones) { 155 if (phone.isVideoCallPresent()) { 156 return true; 157 } 158 } 159 return false; 160 } 161 } 162