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.systemui.volume; 18 19 import android.content.Context; 20 import android.media.AudioManager; 21 import android.media.MediaMetadata; 22 import android.media.VolumeProvider; 23 import android.media.session.MediaController.PlaybackInfo; 24 import android.media.session.PlaybackState; 25 import android.telephony.TelephonyManager; 26 import android.view.View; 27 import android.widget.TextView; 28 29 import java.text.SimpleDateFormat; 30 import java.util.Date; 31 import java.util.Locale; 32 import java.util.Objects; 33 34 /** 35 * Static helpers for the volume dialog. 36 */ 37 class Util { 38 39 // Note: currently not shown (only used in the text footer) 40 private static final SimpleDateFormat HMMAA = new SimpleDateFormat("h:mm aa", Locale.US); 41 42 private static int[] AUDIO_MANAGER_FLAGS = new int[] { 43 AudioManager.FLAG_SHOW_UI, 44 AudioManager.FLAG_VIBRATE, 45 AudioManager.FLAG_PLAY_SOUND, 46 AudioManager.FLAG_ALLOW_RINGER_MODES, 47 AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE, 48 AudioManager.FLAG_SHOW_VIBRATE_HINT, 49 AudioManager.FLAG_SHOW_SILENT_HINT, 50 AudioManager.FLAG_FROM_KEY, 51 AudioManager.FLAG_SHOW_UI_WARNINGS, 52 }; 53 54 private static String[] AUDIO_MANAGER_FLAG_NAMES = new String[] { 55 "SHOW_UI", 56 "VIBRATE", 57 "PLAY_SOUND", 58 "ALLOW_RINGER_MODES", 59 "REMOVE_SOUND_AND_VIBRATE", 60 "SHOW_VIBRATE_HINT", 61 "SHOW_SILENT_HINT", 62 "FROM_KEY", 63 "SHOW_UI_WARNINGS", 64 }; 65 66 public static String logTag(Class<?> c) { 67 final String tag = "vol." + c.getSimpleName(); 68 return tag.length() < 23 ? tag : tag.substring(0, 23); 69 } 70 71 public static String ringerModeToString(int ringerMode) { 72 switch (ringerMode) { 73 case AudioManager.RINGER_MODE_SILENT: return "RINGER_MODE_SILENT"; 74 case AudioManager.RINGER_MODE_VIBRATE: return "RINGER_MODE_VIBRATE"; 75 case AudioManager.RINGER_MODE_NORMAL: return "RINGER_MODE_NORMAL"; 76 default: return "RINGER_MODE_UNKNOWN_" + ringerMode; 77 } 78 } 79 80 public static String mediaMetadataToString(MediaMetadata metadata) { 81 if (metadata == null) return null; 82 return metadata.getDescription().toString(); 83 } 84 85 public static String playbackInfoToString(PlaybackInfo info) { 86 if (info == null) return null; 87 final String type = playbackInfoTypeToString(info.getPlaybackType()); 88 final String vc = volumeProviderControlToString(info.getVolumeControl()); 89 return String.format("PlaybackInfo[vol=%s,max=%s,type=%s,vc=%s],atts=%s", 90 info.getCurrentVolume(), info.getMaxVolume(), type, vc, info.getAudioAttributes()); 91 } 92 93 public static String playbackInfoTypeToString(int type) { 94 switch (type) { 95 case PlaybackInfo.PLAYBACK_TYPE_LOCAL: return "LOCAL"; 96 case PlaybackInfo.PLAYBACK_TYPE_REMOTE: return "REMOTE"; 97 default: return "UNKNOWN_" + type; 98 } 99 } 100 101 public static String playbackStateStateToString(int state) { 102 switch (state) { 103 case PlaybackState.STATE_NONE: return "STATE_NONE"; 104 case PlaybackState.STATE_STOPPED: return "STATE_STOPPED"; 105 case PlaybackState.STATE_PAUSED: return "STATE_PAUSED"; 106 case PlaybackState.STATE_PLAYING: return "STATE_PLAYING"; 107 default: return "UNKNOWN_" + state; 108 } 109 } 110 111 public static String volumeProviderControlToString(int control) { 112 switch (control) { 113 case VolumeProvider.VOLUME_CONTROL_ABSOLUTE: return "VOLUME_CONTROL_ABSOLUTE"; 114 case VolumeProvider.VOLUME_CONTROL_FIXED: return "VOLUME_CONTROL_FIXED"; 115 case VolumeProvider.VOLUME_CONTROL_RELATIVE: return "VOLUME_CONTROL_RELATIVE"; 116 default: return "VOLUME_CONTROL_UNKNOWN_" + control; 117 } 118 } 119 120 public static String playbackStateToString(PlaybackState playbackState) { 121 if (playbackState == null) return null; 122 return playbackStateStateToString(playbackState.getState()) + " " + playbackState; 123 } 124 125 public static String audioManagerFlagsToString(int value) { 126 return bitFieldToString(value, AUDIO_MANAGER_FLAGS, AUDIO_MANAGER_FLAG_NAMES); 127 } 128 129 private static String bitFieldToString(int value, int[] values, String[] names) { 130 if (value == 0) return ""; 131 final StringBuilder sb = new StringBuilder(); 132 for (int i = 0; i < values.length; i++) { 133 if ((value & values[i]) != 0) { 134 if (sb.length() > 0) sb.append(','); 135 sb.append(names[i]); 136 } 137 value &= ~values[i]; 138 } 139 if (value != 0) { 140 if (sb.length() > 0) sb.append(','); 141 sb.append("UNKNOWN_").append(value); 142 } 143 return sb.toString(); 144 } 145 146 public static String getShortTime(long millis) { 147 return HMMAA.format(new Date(millis)); 148 } 149 150 private static CharSequence emptyToNull(CharSequence str) { 151 return str == null || str.length() == 0 ? null : str; 152 } 153 154 public static boolean setText(TextView tv, CharSequence text) { 155 if (Objects.equals(emptyToNull(tv.getText()), emptyToNull(text))) return false; 156 tv.setText(text); 157 return true; 158 } 159 160 public static final void setVisOrGone(View v, boolean vis) { 161 if (v == null || (v.getVisibility() == View.VISIBLE) == vis) return; 162 v.setVisibility(vis ? View.VISIBLE : View.GONE); 163 } 164 165 public static final void setVisOrInvis(View v, boolean vis) { 166 if (v == null || (v.getVisibility() == View.VISIBLE) == vis) return; 167 v.setVisibility(vis ? View.VISIBLE : View.INVISIBLE); 168 } 169 170 public static boolean isVoiceCapable(Context context) { 171 final TelephonyManager telephony = 172 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 173 return telephony != null && telephony.isVoiceCapable(); 174 } 175 } 176