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.SwitchPreference; 23 import android.preference.Preference; 24 import android.preference.PreferenceFragment; 25 import android.preference.PreferenceScreen; 26 import android.provider.Settings; 27 import android.telephony.CarrierConfigManager; 28 import android.telephony.PhoneStateListener; 29 import android.telephony.TelephonyManager; 30 import android.util.Log; 31 32 import com.android.ims.ImsManager; 33 import com.android.internal.telephony.Phone; 34 import com.android.internal.telephony.PhoneFactory; 35 import com.android.phone.PhoneGlobals; 36 import com.android.phone.R; 37 38 public class AccessibilitySettingsFragment extends PreferenceFragment { 39 private static final String LOG_TAG = AccessibilitySettingsFragment.class.getSimpleName(); 40 private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2); 41 42 private static final String BUTTON_TTY_KEY = "button_tty_mode_key"; 43 private static final String BUTTON_HAC_KEY = "button_hac_key"; 44 45 private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 46 /** 47 * Disable the TTY setting when in/out of a call (and if carrier doesn't 48 * support VoLTE with TTY). 49 * @see android.telephony.PhoneStateListener#onCallStateChanged(int, 50 * java.lang.String) 51 */ 52 @Override 53 public void onCallStateChanged(int state, String incomingNumber) { 54 if (DBG) Log.d(LOG_TAG, "PhoneStateListener.onCallStateChanged: state=" + state); 55 Preference pref = getPreferenceScreen().findPreference(BUTTON_TTY_KEY); 56 if (pref != null) { 57 final boolean isVolteTtySupported = ImsManager.isVolteEnabledByPlatform(mContext) 58 && getVolteTtySupported(); 59 pref.setEnabled((isVolteTtySupported && !isVideoCallOrConferenceInProgress()) || 60 (state == TelephonyManager.CALL_STATE_IDLE)); 61 } 62 } 63 }; 64 65 private Context mContext; 66 private AudioManager mAudioManager; 67 68 private TtyModeListPreference mButtonTty; 69 private SwitchPreference mButtonHac; 70 71 @Override onCreate(Bundle savedInstanceState)72 public void onCreate(Bundle savedInstanceState) { 73 super.onCreate(savedInstanceState); 74 75 mContext = getActivity().getApplicationContext(); 76 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 77 78 addPreferencesFromResource(R.xml.accessibility_settings); 79 80 mButtonTty = (TtyModeListPreference) findPreference( 81 getResources().getString(R.string.tty_mode_key)); 82 mButtonHac = (SwitchPreference) findPreference(BUTTON_HAC_KEY); 83 84 if (PhoneGlobals.getInstance().phoneMgr.isTtyModeSupported()) { 85 mButtonTty.init(); 86 } else { 87 getPreferenceScreen().removePreference(mButtonTty); 88 mButtonTty = null; 89 } 90 91 if (PhoneGlobals.getInstance().phoneMgr.isHearingAidCompatibilitySupported()) { 92 int hac = Settings.System.getInt(mContext.getContentResolver(), 93 Settings.System.HEARING_AID, SettingsConstants.HAC_DISABLED); 94 mButtonHac.setChecked(hac == SettingsConstants.HAC_ENABLED); 95 } else { 96 getPreferenceScreen().removePreference(mButtonHac); 97 mButtonHac = null; 98 } 99 } 100 101 @Override onResume()102 public void onResume() { 103 super.onResume(); 104 TelephonyManager tm = 105 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 106 tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 107 } 108 109 @Override onPause()110 public void onPause() { 111 super.onPause(); 112 TelephonyManager tm = 113 (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 114 tm.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE); 115 } 116 117 @Override onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference)118 public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { 119 if (preference == mButtonTty) { 120 return true; 121 } else if (preference == mButtonHac) { 122 int hac = mButtonHac.isChecked() 123 ? SettingsConstants.HAC_ENABLED : SettingsConstants.HAC_DISABLED; 124 // Update HAC value in Settings database. 125 Settings.System.putInt(mContext.getContentResolver(), Settings.System.HEARING_AID, hac); 126 127 // Update HAC Value in AudioManager. 128 mAudioManager.setParameter(SettingsConstants.HAC_KEY, 129 hac == SettingsConstants.HAC_ENABLED 130 ? SettingsConstants.HAC_VAL_ON : SettingsConstants.HAC_VAL_OFF); 131 return true; 132 } 133 return false; 134 } 135 getVolteTtySupported()136 private boolean getVolteTtySupported() { 137 CarrierConfigManager configManager = 138 (CarrierConfigManager) mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE); 139 return configManager.getConfig().getBoolean( 140 CarrierConfigManager.KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL); 141 } 142 isVideoCallOrConferenceInProgress()143 private boolean isVideoCallOrConferenceInProgress() { 144 final Phone[] phones = PhoneFactory.getPhones(); 145 if (phones == null) { 146 if (DBG) Log.d(LOG_TAG, "isVideoCallOrConferenceInProgress: No phones found."); 147 return false; 148 } 149 150 for (Phone phone : phones) { 151 if (phone.isImsVideoCallOrConferencePresent()) { 152 return true; 153 } 154 } 155 return false; 156 } 157 } 158