android.app.NotificationChannel#getSound ( )源码实例Demo

private void loadNotificationRuleSettings() {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O ||
            mEditingRule == null || mEditingRule.settings == null ||
            mEditingRule.settings.notificationChannelId == null)
        return;
    android.app.NotificationManager mgr = (android.app.NotificationManager)
            getSystemService(NOTIFICATION_SERVICE);
    NotificationChannel channel =
            mgr.getNotificationChannel(mEditingRule.settings.notificationChannelId);

    mEditingRule.settings.soundEnabled = channel.getSound() != null;
    mEditingRule.settings.soundUri = null;
    if (channel.getSound() != null && !channel.getSound().equals(
            RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)))
        mEditingRule.settings.soundUri = channel.getSound().toString();

    mEditingRule.settings.vibrationEnabled = channel.shouldVibrate();
    if (channel.shouldVibrate())
        mEditingRule.settings.vibrationDuration = channel.getVibrationPattern() == null ||
                channel.getVibrationPattern().length != 2
                ? 0 : (int) channel.getVibrationPattern()[1];

    mEditingRule.settings.lightEnabled = channel.shouldShowLights();
    if (channel.shouldShowLights())
        mEditingRule.settings.light = channel.getLightColor();
}
 

@TargetApi(26)
private static int myhashcode(NotificationChannel x) {

    int result = x.getId() != null ? x.getId().hashCode() : 0;
    //result = 31 * result + (getName() != null ? getName().hashCode() : 0);
    //result = 31 * result + (getDescription() != null ? getDescription().hashCode() : 0);
    //result = 31 * result + getImportance();
    //result = 31 * result + (mBypassDnd ? 1 : 0);
    //result = 31 * result + getLockscreenVisibility();
    result = 31 * result + (x.getSound() != null ? x.getSound().hashCode() : 0);
    //result = 31 * result + (x.mLights ? 1 : 0);
    result = 31 * result + x.getLightColor();
    result = 31 * result + Arrays.hashCode(x.getVibrationPattern());
    //result = 31 * result + getUserLockedFields();
    //result = 31 * result + (mVibrationEnabled ? 1 : 0);
    //result = 31 * result + (mShowBadge ? 1 : 0);
    //result = 31 * result + (isDeleted() ? 1 : 0);
    //result = 31 * result + (getGroup() != null ? getGroup().hashCode() : 0);
    //result = 31 * result + (getAudioAttributes() != null ? getAudioAttributes().hashCode() : 0);
    //result = 31 * result + (isBlockableSystem() ? 1 : 0);
    return result;

}
 

@TargetApi(26)
public static boolean isSoundDifferent(String id, NotificationChannel x) {
    if (x.getSound() == null) return false; // this does not have a sound
    final NotificationChannel c = getNotifManager().getNotificationChannel(id);
    if (c == null) return false; // no channel with this id
    if (c.getSound() == null)
        return false; // this maybe will only happen if user disables sound so lets not create a new one in that case

    final String original_sound = PersistentStore.getString("original-channel-sound-" + id);
    if (original_sound.equals("")) {
        PersistentStore.setString("original-channel-sound-" + id, x.getSound().toString());
        return false; // no existing record so save the original and do nothing else
    }
    if (original_sound.equals(x.getSound().toString()))
        return false; // its the same sound still
    return true; // the sound has changed vs the original
}
 

@TargetApi(26)
private static int myhashcode(NotificationChannel x) {

    int result = x.getId() != null ? x.getId().hashCode() : 0;
    //result = 31 * result + (getName() != null ? getName().hashCode() : 0);
    //result = 31 * result + (getDescription() != null ? getDescription().hashCode() : 0);
    //result = 31 * result + getImportance();
    //result = 31 * result + (mBypassDnd ? 1 : 0);
    //result = 31 * result + getLockscreenVisibility();
    result = 31 * result + (x.getSound() != null ? x.getSound().hashCode() : 0);
    //result = 31 * result + (x.mLights ? 1 : 0);
    result = 31 * result + x.getLightColor();
    result = 31 * result + Arrays.hashCode(x.getVibrationPattern());
    //result = 31 * result + getUserLockedFields();
    //result = 31 * result + (mVibrationEnabled ? 1 : 0);
    //result = 31 * result + (mShowBadge ? 1 : 0);
    //result = 31 * result + (isDeleted() ? 1 : 0);
    //result = 31 * result + (getGroup() != null ? getGroup().hashCode() : 0);
    //result = 31 * result + (getAudioAttributes() != null ? getAudioAttributes().hashCode() : 0);
    //result = 31 * result + (isBlockableSystem() ? 1 : 0);
    return result;

}
 

@TargetApi(26)
public static boolean isSoundDifferent(String id, NotificationChannel x) {
    if (x.getSound() == null) return false; // this does not have a sound
    final NotificationChannel c = getNotifManager().getNotificationChannel(id);
    if (c == null) return false; // no channel with this id
    if (c.getSound() == null)
        return false; // this maybe will only happen if user disables sound so lets not create a new one in that case

    final String original_sound = PersistentStore.getString("original-channel-sound-" + id);
    if (original_sound.equals("")) {
        PersistentStore.setString("original-channel-sound-" + id, x.getSound().toString());
        return false; // no existing record so save the original and do nothing else
    }
    if (original_sound.equals(x.getSound().toString()))
        return false; // its the same sound still
    return true; // the sound has changed vs the original
}
 

public static synchronized @Nullable Uri getMessageRingtone(@NonNull Context context, @NonNull Recipient recipient) {
  if (!supported() || recipient.resolve().getNotificationChannel() == null) {
    return null;
  }

  NotificationManager notificationManager = ServiceUtil.getNotificationManager(context);
  NotificationChannel channel             = notificationManager.getNotificationChannel(recipient.getNotificationChannel());

  if (!channelExists(channel)) {
    Log.w(TAG, "Recipient had no channel. Returning null.");
    return null;
  }

  return channel.getSound();
}
 

@RequiresApi(api = Build.VERSION_CODES.O)
private JSONObject channelToJSON(NotificationChannel channel) throws JSONException {
    JSONObject jchannel = new JSONObject();

    jchannel.put("id", channel.getId());
    jchannel.put("group", channel.getGroup());
    jchannel.put("name", channel.getName());
    jchannel.put("description", channel.getDescription());

    jchannel.put("importance", channel.getImportance());
    jchannel.put("dnd", channel.canBypassDnd());
    jchannel.put("visibility", channel.getLockscreenVisibility());
    jchannel.put("badge", channel.canShowBadge());

    Uri sound = channel.getSound();
    if (sound != null)
        jchannel.put("sound", sound.toString());
    // audio attributes

    jchannel.put("light", channel.shouldShowLights());
    // color

    jchannel.put("vibrate", channel.shouldVibrate());
    // pattern

    return jchannel;
}
 

@SuppressWarnings("DoubleNegation")
private boolean hasNotificationRuleChanges() {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O ||
            mEditingRule == null || mEditingRule.settings.notificationChannelId == null)
        return false;
    android.app.NotificationManager mgr = (android.app.NotificationManager)
            getSystemService(NOTIFICATION_SERVICE);
    NotificationChannel channel =
            mgr.getNotificationChannel(mEditingRule.settings.notificationChannelId);

    Uri soundUri = mSoundEntry.getValue();
    if (channel.getSound() != soundUri &&
            (channel.getSound() == null || !channel.getSound().equals(soundUri)))
        return true;

    int vibrationDuration = mVibrationOptions[mVibrationEntry.getSelectedOption()];
    if (channel.shouldVibrate() != (vibrationDuration != 0))
        return true;
    if (channel.shouldVibrate()) {
        int channelVibrationDuration = channel.getVibrationPattern() == null ||
                channel.getVibrationPattern().length != 2
                ? -1 : (int) channel.getVibrationPattern()[1];
        if (channelVibrationDuration != vibrationDuration)
            return true;
    }

    if (channel.shouldShowLights() != (mColorEntry.getSelectedColorIndex() != 0))
        return true;
    //noinspection RedundantIfStatement
    if (channel.shouldShowLights() && channel.getLightColor() !=
            (mColorEntry.getSelectedColorIndex() == -1 ? 0 : mColorEntry.getSelectedColor()))
        return true;

    return false;
}