1 /* 2 * Copyright (C) 2022 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.settings.accessibility; 18 19 import android.content.Context; 20 import android.media.AudioManager; 21 import android.provider.Settings; 22 import android.telephony.TelephonyManager; 23 24 import com.android.internal.annotations.VisibleForTesting; 25 import com.android.settings.R; 26 import com.android.settings.core.TogglePreferenceController; 27 import com.android.settings.overlay.FeatureFactory; 28 29 /** Preference controller for Hearing Aid Compatibility (HAC) settings */ 30 public class HearingAidCompatibilityPreferenceController extends TogglePreferenceController { 31 32 // Hearing Aid Compatibility settings values 33 static final String HAC_KEY = "HACSetting"; 34 static final String HAC_VAL_ON = "ON"; 35 static final String HAC_VAL_OFF = "OFF"; 36 @VisibleForTesting 37 static final int HAC_DISABLED = 0; 38 @VisibleForTesting 39 static final int HAC_ENABLED = 1; 40 41 private final TelephonyManager mTelephonyManager; 42 private final AudioManager mAudioManager; 43 HearingAidCompatibilityPreferenceController(Context context, String preferenceKey)44 public HearingAidCompatibilityPreferenceController(Context context, 45 String preferenceKey) { 46 super(context, preferenceKey); 47 mTelephonyManager = context.getSystemService(TelephonyManager.class); 48 mAudioManager = context.getSystemService(AudioManager.class); 49 } 50 51 @Override getAvailabilityStatus()52 public int getAvailabilityStatus() { 53 try { 54 return mTelephonyManager.isHearingAidCompatibilitySupported() ? AVAILABLE 55 : UNSUPPORTED_ON_DEVICE; 56 } catch (UnsupportedOperationException e) { 57 // Device doesn't support FEATURE_TELEPHONY_CALLING 58 return UNSUPPORTED_ON_DEVICE; 59 } 60 } 61 62 @Override isChecked()63 public boolean isChecked() { 64 final int hac = Settings.System.getInt(mContext.getContentResolver(), 65 Settings.System.HEARING_AID, HAC_DISABLED); 66 return hac == HAC_ENABLED; 67 } 68 69 @Override setChecked(boolean isChecked)70 public boolean setChecked(boolean isChecked) { 71 FeatureFactory.getFeatureFactory().getMetricsFeatureProvider().changed( 72 getMetricsCategory(), getPreferenceKey(), isChecked ? 1 : 0); 73 setAudioParameterHacEnabled(isChecked); 74 return Settings.System.putInt(mContext.getContentResolver(), Settings.System.HEARING_AID, 75 (isChecked ? HAC_ENABLED : HAC_DISABLED)); 76 } 77 78 @Override getSliceHighlightMenuRes()79 public int getSliceHighlightMenuRes() { 80 return R.string.menu_key_accessibility; 81 } 82 setAudioParameterHacEnabled(boolean enabled)83 private void setAudioParameterHacEnabled(boolean enabled) { 84 mAudioManager.setParameters(HAC_KEY + "=" + (enabled ? HAC_VAL_ON : HAC_VAL_OFF) + ";"); 85 } 86 } 87