telecomm/java/android/telecom/DisconnectCause.java - LeafOS-Project/android_frameworks_base - Gitiles

 /*
  * Copyright (C) 2014 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package android.telecom;

 import android.annotation.Nullable;
 import android.media.ToneGenerator;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.telephony.Annotation;
 import android.telephony.PreciseDisconnectCause;
 import android.telephony.ims.ImsReasonInfo;
 import android.text.TextUtils;

 import java.util.Objects;

 /**
  * Describes the cause of a disconnected call. This always includes a code describing the generic
  * cause of the disconnect. Optionally, it may include a label and/or description to display to the
  * user. It is the responsibility of the {@link ConnectionService} to provide localized versions of
  * the label and description. It also may contain a reason for the disconnect, which is intended for
  * logging and not for display to the user.
  */
 public final class DisconnectCause implements Parcelable {

     /** Disconnected because of an unknown or unspecified reason. */
     public static final int UNKNOWN = TelecomProtoEnums.UNKNOWN; // = 0
     /** Disconnected because there was an error, such as a problem with the network. */
     public static final int ERROR = TelecomProtoEnums.ERROR; // = 1
     /** Disconnected because of a local user-initiated action, such as hanging up. */
     public static final int LOCAL = TelecomProtoEnums.LOCAL; // = 2
     /**
      * Disconnected because the remote party hung up an ongoing call, or because an outgoing call
      * was not answered by the remote party.
      */
     public static final int REMOTE = TelecomProtoEnums.REMOTE; // = 3
     /** Disconnected because it has been canceled. */
     public static final int CANCELED = TelecomProtoEnums.CANCELED; // = 4
     /** Disconnected because there was no response to an incoming call. */
     public static final int MISSED = TelecomProtoEnums.MISSED; // = 5
     /** Disconnected because the user rejected an incoming call. */
     public static final int REJECTED = TelecomProtoEnums.REJECTED; // = 6
     /** Disconnected because the other party was busy. */
     public static final int BUSY = TelecomProtoEnums.BUSY; // = 7
     /**
      * Disconnected because of a restriction on placing the call, such as dialing in airplane
      * mode.
      */
     public static final int RESTRICTED = TelecomProtoEnums.RESTRICTED; // = 8
     /** Disconnected for reason not described by other disconnect codes. */
     public static final int OTHER = TelecomProtoEnums.OTHER; // = 9
     /**
      * Disconnected because the connection manager did not support the call. The call will be tried
      * again without a connection manager. See {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER}.
      */
     public static final int CONNECTION_MANAGER_NOT_SUPPORTED =
             TelecomProtoEnums.CONNECTION_MANAGER_NOT_SUPPORTED; // = 10

     /**
      * Disconnected because the user did not locally answer the incoming call, but it was answered
      * on another device where the call was ringing.
      */
     public static final int ANSWERED_ELSEWHERE = TelecomProtoEnums.ANSWERED_ELSEWHERE; // = 11

     /**
      * Disconnected because the call was pulled from the current device to another device.
      */
     public static final int CALL_PULLED = TelecomProtoEnums.CALL_PULLED; // = 12

     /**
      * Reason code (returned via {@link #getReason()}) which indicates that a call could not be
      * completed because the cellular radio is off or out of service, the device is connected to
      * a wifi network, but the user has not enabled wifi calling.
      */
     public static final String REASON_WIFI_ON_BUT_WFC_OFF = "REASON_WIFI_ON_BUT_WFC_OFF";

     /**
      * Reason code (returned via {@link #getReason()}), which indicates that the call was
      * disconnected because IMS access is blocked.
      */
     public static final String REASON_IMS_ACCESS_BLOCKED = "REASON_IMS_ACCESS_BLOCKED";

     /**
      * Reason code (returned via {@link #getReason()}), which indicates that the connection service
      * is setting the call's state to {@link Call#STATE_DISCONNECTED} because it is internally
      * changing the representation of an IMS conference call to simulate a single-party call.
      *
      * This reason code is only used for communication between a {@link ConnectionService} and
      * Telecom and should not be surfaced to the user.
      */
     public static final String REASON_EMULATING_SINGLE_CALL = "EMULATING_SINGLE_CALL";

     /**
      * This reason is set when a call is ended in order to place an emergency call when a
      * {@link PhoneAccount} doesn't support holding an ongoing call to place an emergency call. This
      * reason string should only be associated with the {@link #LOCAL} disconnect code returned from
      * {@link #getCode()}.
      */
     public static final String REASON_EMERGENCY_CALL_PLACED = "REASON_EMERGENCY_CALL_PLACED";

     private int mDisconnectCode;
     private CharSequence mDisconnectLabel;
     private CharSequence mDisconnectDescription;
     private String mDisconnectReason;
     private int mToneToPlay;
     private int mTelephonyDisconnectCause;
     private int mTelephonyPreciseDisconnectCause;
     private ImsReasonInfo mImsReasonInfo;

     /**
      * Creates a new DisconnectCause.
      *
      * @param code The code for the disconnect cause.
      */
     public DisconnectCause(int code) {
         this(code, null, null, null, ToneGenerator.TONE_UNKNOWN);
     }

     /**
      * Creates a new DisconnectCause.
      *
      * @param code The code for the disconnect cause.
      * @param reason The reason for the disconnect.
      */
     public DisconnectCause(int code, String reason) {
         this(code, null, null, reason, ToneGenerator.TONE_UNKNOWN);
     }

     /**
      * Creates a new DisconnectCause.
      *
      * @param code The code for the disconnect cause.
      * @param label The localized label to show to the user to explain the disconnect.
      * @param description The localized description to show to the user to explain the disconnect.
      * @param reason The reason for the disconnect.
      */
     public DisconnectCause(int code, CharSequence label, CharSequence description, String reason) {
         this(code, label, description, reason, ToneGenerator.TONE_UNKNOWN);
     }

     /**
      * Creates a new DisconnectCause.
      *
      * @param code The code for the disconnect cause.
      * @param label The localized label to show to the user to explain the disconnect.
      * @param description The localized description to show to the user to explain the disconnect.
      * @param reason The reason for the disconnect.
      * @param toneToPlay The tone to play on disconnect, as defined in {@link ToneGenerator}.
      */
     public DisconnectCause(int code, CharSequence label, CharSequence description, String reason,
             int toneToPlay) {
         this(code, label, description, reason, toneToPlay,
                 android.telephony.DisconnectCause.ERROR_UNSPECIFIED,
                 PreciseDisconnectCause.ERROR_UNSPECIFIED,
                 null /* imsReasonInfo */);
     }

     /**
      * Creates a new DisconnectCause instance.
      * @param code The code for the disconnect cause.
      * @param label The localized label to show to the user to explain the disconnect.
      * @param description The localized description to show to the user to explain the disconnect.
      * @param reason The reason for the disconnect.
      * @param toneToPlay The tone to play on disconnect, as defined in {@link ToneGenerator}.
      * @param telephonyDisconnectCause The Telephony disconnect cause.
      * @param telephonyPreciseDisconnectCause The Telephony precise disconnect cause.
      * @param imsReasonInfo The relevant {@link ImsReasonInfo}, or {@code null} if not available.
      * @hide
      */
     public DisconnectCause(int code, CharSequence label, CharSequence description, String reason,
             int toneToPlay, @Annotation.DisconnectCauses int telephonyDisconnectCause,
             @Annotation.PreciseDisconnectCauses int telephonyPreciseDisconnectCause,
             @Nullable ImsReasonInfo imsReasonInfo) {
         mDisconnectCode = code;
         mDisconnectLabel = label;
         mDisconnectDescription = description;
         mDisconnectReason = reason;
         mToneToPlay = toneToPlay;
         mTelephonyDisconnectCause = telephonyDisconnectCause;
         mTelephonyPreciseDisconnectCause = telephonyPreciseDisconnectCause;
         mImsReasonInfo = imsReasonInfo;
     }

     /**
      * Returns the code for the reason for this disconnect.
      *
      * @return The disconnect code.
      */
     public int getCode() {
         return mDisconnectCode;
     }

     /**
      * Returns a short label which explains the reason for the disconnect cause and is for display
      * in the user interface. If not null, it is expected that the In-Call UI should display this
      * text where it would normally display the call state ("Dialing", "Disconnected") and is
      * therefore expected to be relatively small. The {@link ConnectionService } is responsible for
      * providing and localizing this label. If there is no string provided, returns null.
      *
      * @return The disconnect label.
      */
     public CharSequence getLabel() {
         return mDisconnectLabel;
     }

     /**
      * Returns a description which explains the reason for the disconnect cause and is for display
      * in the user interface. This optional text is generally a longer and more descriptive version
      * of {@link #getLabel}, however it can exist even if {@link #getLabel} is empty. The In-Call UI
      * should display this relatively prominently; the traditional implementation displays this as
      * an alert dialog. The {@link ConnectionService} is responsible for providing and localizing
      * this message. If there is no string provided, returns null.
      *
      * @return The disconnect description.
      */
     public CharSequence getDescription() {
         return mDisconnectDescription;
     }

     /**
      * Returns an explanation of the reason for the disconnect. This is not intended for display to
      * the user and is used mainly for logging.
      *
      * @return The disconnect reason.
      */
     public String getReason() {
         return mDisconnectReason;
     }

     /**
      * Returns the telephony {@link android.telephony.DisconnectCause} for the call.
      * @return The disconnect cause.
      * @hide
      */
     public @Annotation.DisconnectCauses int getTelephonyDisconnectCause() {
         return mTelephonyDisconnectCause;
     }

     /**
      * Returns the telephony {@link android.telephony.PreciseDisconnectCause} for the call.
      * @return The precise disconnect cause.
      * @hide
      */
     public @Annotation.PreciseDisconnectCauses int getTelephonyPreciseDisconnectCause() {
         return mTelephonyPreciseDisconnectCause;
     }

     /**
      * Returns the telephony {@link ImsReasonInfo} associated with the call disconnection.
      * @return The {@link ImsReasonInfo} or {@code null} if not known.
      * @hide
      */
     public @Nullable ImsReasonInfo getImsReasonInfo() {
         return mImsReasonInfo;
     }

     /**
      * Returns the tone to play when disconnected.
      *
      * @return the tone as defined in {@link ToneGenerator} to play when disconnected.
      */
     public int getTone() {
         return mToneToPlay;
     }

     public static final @android.annotation.NonNull Creator<DisconnectCause> CREATOR
             = new Creator<DisconnectCause>() {
         @Override
         public DisconnectCause createFromParcel(Parcel source) {
             int code = source.readInt();
             CharSequence label = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source);
             CharSequence description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source);
             String reason = source.readString();
             int tone = source.readInt();
             int telephonyDisconnectCause = source.readInt();
             int telephonyPreciseDisconnectCause = source.readInt();
             ImsReasonInfo imsReasonInfo = source.readParcelable(null, android.telephony.ims.ImsReasonInfo.class);
             return new DisconnectCause(code, label, description, reason, tone,
                     telephonyDisconnectCause, telephonyPreciseDisconnectCause, imsReasonInfo);
         }

         @Override
         public DisconnectCause[] newArray(int size) {
             return new DisconnectCause[size];
         }
     };

     @Override
     public void writeToParcel(Parcel destination, int flags) {
         destination.writeInt(mDisconnectCode);
         TextUtils.writeToParcel(mDisconnectLabel, destination, flags);
         TextUtils.writeToParcel(mDisconnectDescription, destination, flags);
         destination.writeString(mDisconnectReason);
         destination.writeInt(mToneToPlay);
         destination.writeInt(mTelephonyDisconnectCause);
         destination.writeInt(mTelephonyPreciseDisconnectCause);
         destination.writeParcelable(mImsReasonInfo, 0);
     }

     @Override
     public int describeContents() {
         return 0;
     }

     @Override
     public int hashCode() {
         return Objects.hashCode(mDisconnectCode)
                 + Objects.hashCode(mDisconnectLabel)
                 + Objects.hashCode(mDisconnectDescription)
                 + Objects.hashCode(mDisconnectReason)
                 + Objects.hashCode(mToneToPlay)
                 + Objects.hashCode(mTelephonyDisconnectCause)
                 + Objects.hashCode(mTelephonyPreciseDisconnectCause)
                 + Objects.hashCode(mImsReasonInfo);
     }

     @Override
     public boolean equals(Object o) {
         if (o instanceof DisconnectCause) {
             DisconnectCause d = (DisconnectCause) o;
             return Objects.equals(mDisconnectCode, d.getCode())
                     && Objects.equals(mDisconnectLabel, d.getLabel())
                     && Objects.equals(mDisconnectDescription, d.getDescription())
                     && Objects.equals(mDisconnectReason, d.getReason())
                     && Objects.equals(mToneToPlay, d.getTone())
                     && Objects.equals(mTelephonyDisconnectCause, d.getTelephonyDisconnectCause())
                     && Objects.equals(mTelephonyPreciseDisconnectCause,
                     d.getTelephonyPreciseDisconnectCause())
                     && Objects.equals(mImsReasonInfo, d.getImsReasonInfo());
         }
         return false;
     }

     @Override
     public String toString() {
         String code = "";
         switch (mDisconnectCode) {
             case UNKNOWN:
                 code = "UNKNOWN";
                 break;
             case ERROR:
                 code = "ERROR";
                 break;
             case LOCAL:
                 code = "LOCAL";
                 break;
             case REMOTE:
                 code = "REMOTE";
                 break;
             case CANCELED:
                 code = "CANCELED";
                 break;
             case MISSED:
                 code = "MISSED";
                 break;
             case REJECTED:
                 code = "REJECTED";
                 break;
             case BUSY:
                 code = "BUSY";
                 break;
             case RESTRICTED:
                 code = "RESTRICTED";
                 break;
             case OTHER:
                 code = "OTHER";
                 break;
             case CONNECTION_MANAGER_NOT_SUPPORTED:
                 code = "CONNECTION_MANAGER_NOT_SUPPORTED";
                 break;
             case CALL_PULLED:
                 code = "CALL_PULLED";
                 break;
             case ANSWERED_ELSEWHERE:
                 code = "ANSWERED_ELSEWHERE";
                 break;
             default:
                 code = "invalid code: " + mDisconnectCode;
                 break;
         }
         String label = mDisconnectLabel == null ? "" : mDisconnectLabel.toString();
         String description = mDisconnectDescription == null
                 ? "" : mDisconnectDescription.toString();
         String reason = mDisconnectReason == null ? "" : mDisconnectReason;
         return "DisconnectCause [ Code: (" + code + ")"
                 + " Label: (" + label + ")"
                 + " Description: (" + description + ")"
                 + " Reason: (" + reason + ")"
                 + " Tone: (" + mToneToPlay + ") "
                 + " TelephonyCause: " + mTelephonyDisconnectCause + "/"
                 + mTelephonyPreciseDisconnectCause
                 + " ImsReasonInfo: "
                 + mImsReasonInfo
                 + "]";
     }
 }
	/*
	* Copyright (C) 2014 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package android.telecom;

	import android.annotation.Nullable;
	import android.media.ToneGenerator;
	import android.os.Parcel;
	import android.os.Parcelable;
	import android.telephony.Annotation;
	import android.telephony.PreciseDisconnectCause;
	import android.telephony.ims.ImsReasonInfo;
	import android.text.TextUtils;

	import java.util.Objects;

	/**
	* Describes the cause of a disconnected call. This always includes a code describing the generic
	* cause of the disconnect. Optionally, it may include a label and/or description to display to the
	* user. It is the responsibility of the {@link ConnectionService} to provide localized versions of
	* the label and description. It also may contain a reason for the disconnect, which is intended for
	* logging and not for display to the user.
	*/
	public final class DisconnectCause implements Parcelable {

	/** Disconnected because of an unknown or unspecified reason. */
	public static final int UNKNOWN = TelecomProtoEnums.UNKNOWN; // = 0
	/** Disconnected because there was an error, such as a problem with the network. */
	public static final int ERROR = TelecomProtoEnums.ERROR; // = 1
	/** Disconnected because of a local user-initiated action, such as hanging up. */
	public static final int LOCAL = TelecomProtoEnums.LOCAL; // = 2
	/**
	* Disconnected because the remote party hung up an ongoing call, or because an outgoing call
	* was not answered by the remote party.
	*/
	public static final int REMOTE = TelecomProtoEnums.REMOTE; // = 3
	/** Disconnected because it has been canceled. */
	public static final int CANCELED = TelecomProtoEnums.CANCELED; // = 4
	/** Disconnected because there was no response to an incoming call. */
	public static final int MISSED = TelecomProtoEnums.MISSED; // = 5
	/** Disconnected because the user rejected an incoming call. */
	public static final int REJECTED = TelecomProtoEnums.REJECTED; // = 6
	/** Disconnected because the other party was busy. */
	public static final int BUSY = TelecomProtoEnums.BUSY; // = 7
	/**
	* Disconnected because of a restriction on placing the call, such as dialing in airplane
	* mode.
	*/
	public static final int RESTRICTED = TelecomProtoEnums.RESTRICTED; // = 8
	/** Disconnected for reason not described by other disconnect codes. */
	public static final int OTHER = TelecomProtoEnums.OTHER; // = 9
	/**
	* Disconnected because the connection manager did not support the call. The call will be tried
	* again without a connection manager. See {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER}.
	*/
	public static final int CONNECTION_MANAGER_NOT_SUPPORTED =
	TelecomProtoEnums.CONNECTION_MANAGER_NOT_SUPPORTED; // = 10

	/**
	* Disconnected because the user did not locally answer the incoming call, but it was answered
	* on another device where the call was ringing.
	*/
	public static final int ANSWERED_ELSEWHERE = TelecomProtoEnums.ANSWERED_ELSEWHERE; // = 11

	/**
	* Disconnected because the call was pulled from the current device to another device.
	*/
	public static final int CALL_PULLED = TelecomProtoEnums.CALL_PULLED; // = 12

	/**
	* Reason code (returned via {@link #getReason()}) which indicates that a call could not be
	* completed because the cellular radio is off or out of service, the device is connected to
	* a wifi network, but the user has not enabled wifi calling.
	*/
	public static final String REASON_WIFI_ON_BUT_WFC_OFF = "REASON_WIFI_ON_BUT_WFC_OFF";

	/**
	* Reason code (returned via {@link #getReason()}), which indicates that the call was
	* disconnected because IMS access is blocked.
	*/
	public static final String REASON_IMS_ACCESS_BLOCKED = "REASON_IMS_ACCESS_BLOCKED";

	/**
	* Reason code (returned via {@link #getReason()}), which indicates that the connection service
	* is setting the call's state to {@link Call#STATE_DISCONNECTED} because it is internally
	* changing the representation of an IMS conference call to simulate a single-party call.
	*
	* This reason code is only used for communication between a {@link ConnectionService} and
	* Telecom and should not be surfaced to the user.
	*/
	public static final String REASON_EMULATING_SINGLE_CALL = "EMULATING_SINGLE_CALL";

	/**
	* This reason is set when a call is ended in order to place an emergency call when a
	* {@link PhoneAccount} doesn't support holding an ongoing call to place an emergency call. This
	* reason string should only be associated with the {@link #LOCAL} disconnect code returned from
	* {@link #getCode()}.
	*/
	public static final String REASON_EMERGENCY_CALL_PLACED = "REASON_EMERGENCY_CALL_PLACED";

	private int mDisconnectCode;
	private CharSequence mDisconnectLabel;
	private CharSequence mDisconnectDescription;
	private String mDisconnectReason;
	private int mToneToPlay;
	private int mTelephonyDisconnectCause;
	private int mTelephonyPreciseDisconnectCause;
	private ImsReasonInfo mImsReasonInfo;

	/**
	* Creates a new DisconnectCause.
	*
	* @param code The code for the disconnect cause.
	*/
	public DisconnectCause(int code) {
	this(code, null, null, null, ToneGenerator.TONE_UNKNOWN);
	}

	/**
	* Creates a new DisconnectCause.
	*
	* @param code The code for the disconnect cause.
	* @param reason The reason for the disconnect.
	*/
	public DisconnectCause(int code, String reason) {
	this(code, null, null, reason, ToneGenerator.TONE_UNKNOWN);
	}

	/**
	* Creates a new DisconnectCause.
	*
	* @param code The code for the disconnect cause.
	* @param label The localized label to show to the user to explain the disconnect.
	* @param description The localized description to show to the user to explain the disconnect.
	* @param reason The reason for the disconnect.
	*/
	public DisconnectCause(int code, CharSequence label, CharSequence description, String reason) {
	this(code, label, description, reason, ToneGenerator.TONE_UNKNOWN);
	}

	/**
	* Creates a new DisconnectCause.
	*
	* @param code The code for the disconnect cause.
	* @param label The localized label to show to the user to explain the disconnect.
	* @param description The localized description to show to the user to explain the disconnect.
	* @param reason The reason for the disconnect.
	* @param toneToPlay The tone to play on disconnect, as defined in {@link ToneGenerator}.
	*/
	public DisconnectCause(int code, CharSequence label, CharSequence description, String reason,
	int toneToPlay) {
	this(code, label, description, reason, toneToPlay,
	android.telephony.DisconnectCause.ERROR_UNSPECIFIED,
	PreciseDisconnectCause.ERROR_UNSPECIFIED,
	null /* imsReasonInfo */);
	}

	/**
	* Creates a new DisconnectCause instance.
	* @param code The code for the disconnect cause.
	* @param label The localized label to show to the user to explain the disconnect.
	* @param description The localized description to show to the user to explain the disconnect.
	* @param reason The reason for the disconnect.
	* @param toneToPlay The tone to play on disconnect, as defined in {@link ToneGenerator}.
	* @param telephonyDisconnectCause The Telephony disconnect cause.
	* @param telephonyPreciseDisconnectCause The Telephony precise disconnect cause.
	* @param imsReasonInfo The relevant {@link ImsReasonInfo}, or {@code null} if not available.
	* @hide
	*/
	public DisconnectCause(int code, CharSequence label, CharSequence description, String reason,
	int toneToPlay, @Annotation.DisconnectCauses int telephonyDisconnectCause,
	@Annotation.PreciseDisconnectCauses int telephonyPreciseDisconnectCause,
	@Nullable ImsReasonInfo imsReasonInfo) {
	mDisconnectCode = code;
	mDisconnectLabel = label;
	mDisconnectDescription = description;
	mDisconnectReason = reason;
	mToneToPlay = toneToPlay;
	mTelephonyDisconnectCause = telephonyDisconnectCause;
	mTelephonyPreciseDisconnectCause = telephonyPreciseDisconnectCause;
	mImsReasonInfo = imsReasonInfo;
	}

	/**
	* Returns the code for the reason for this disconnect.
	*
	* @return The disconnect code.
	*/
	public int getCode() {
	return mDisconnectCode;
	}

	/**
	* Returns a short label which explains the reason for the disconnect cause and is for display
	* in the user interface. If not null, it is expected that the In-Call UI should display this
	* text where it would normally display the call state ("Dialing", "Disconnected") and is
	* therefore expected to be relatively small. The {@link ConnectionService } is responsible for
	* providing and localizing this label. If there is no string provided, returns null.
	*
	* @return The disconnect label.
	*/
	public CharSequence getLabel() {
	return mDisconnectLabel;
	}

	/**
	* Returns a description which explains the reason for the disconnect cause and is for display
	* in the user interface. This optional text is generally a longer and more descriptive version
	* of {@link #getLabel}, however it can exist even if {@link #getLabel} is empty. The In-Call UI
	* should display this relatively prominently; the traditional implementation displays this as
	* an alert dialog. The {@link ConnectionService} is responsible for providing and localizing
	* this message. If there is no string provided, returns null.
	*
	* @return The disconnect description.
	*/
	public CharSequence getDescription() {
	return mDisconnectDescription;
	}

	/**
	* Returns an explanation of the reason for the disconnect. This is not intended for display to
	* the user and is used mainly for logging.
	*
	* @return The disconnect reason.
	*/
	public String getReason() {
	return mDisconnectReason;
	}

	/**
	* Returns the telephony {@link android.telephony.DisconnectCause} for the call.
	* @return The disconnect cause.
	* @hide
	*/
	public @Annotation.DisconnectCauses int getTelephonyDisconnectCause() {
	return mTelephonyDisconnectCause;
	}

	/**
	* Returns the telephony {@link android.telephony.PreciseDisconnectCause} for the call.
	* @return The precise disconnect cause.
	* @hide
	*/
	public @Annotation.PreciseDisconnectCauses int getTelephonyPreciseDisconnectCause() {
	return mTelephonyPreciseDisconnectCause;
	}

	/**
	* Returns the telephony {@link ImsReasonInfo} associated with the call disconnection.
	* @return The {@link ImsReasonInfo} or {@code null} if not known.
	* @hide
	*/
	public @Nullable ImsReasonInfo getImsReasonInfo() {
	return mImsReasonInfo;
	}

	/**
	* Returns the tone to play when disconnected.
	*
	* @return the tone as defined in {@link ToneGenerator} to play when disconnected.
	*/
	public int getTone() {
	return mToneToPlay;
	}

	public static final @android.annotation.NonNull Creator<DisconnectCause> CREATOR
	= new Creator<DisconnectCause>() {
	@Override
	public DisconnectCause createFromParcel(Parcel source) {
	int code = source.readInt();
	CharSequence label = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source);
	CharSequence description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source);
	String reason = source.readString();
	int tone = source.readInt();
	int telephonyDisconnectCause = source.readInt();
	int telephonyPreciseDisconnectCause = source.readInt();
	ImsReasonInfo imsReasonInfo = source.readParcelable(null, android.telephony.ims.ImsReasonInfo.class);
	return new DisconnectCause(code, label, description, reason, tone,
	telephonyDisconnectCause, telephonyPreciseDisconnectCause, imsReasonInfo);
	}

	@Override
	public DisconnectCause[] newArray(int size) {
	return new DisconnectCause[size];
	}
	};

	@Override
	public void writeToParcel(Parcel destination, int flags) {
	destination.writeInt(mDisconnectCode);
	TextUtils.writeToParcel(mDisconnectLabel, destination, flags);
	TextUtils.writeToParcel(mDisconnectDescription, destination, flags);
	destination.writeString(mDisconnectReason);
	destination.writeInt(mToneToPlay);
	destination.writeInt(mTelephonyDisconnectCause);
	destination.writeInt(mTelephonyPreciseDisconnectCause);
	destination.writeParcelable(mImsReasonInfo, 0);
	}

	@Override
	public int describeContents() {
	return 0;
	}

	@Override
	public int hashCode() {
	return Objects.hashCode(mDisconnectCode)
	+ Objects.hashCode(mDisconnectLabel)
	+ Objects.hashCode(mDisconnectDescription)
	+ Objects.hashCode(mDisconnectReason)
	+ Objects.hashCode(mToneToPlay)
	+ Objects.hashCode(mTelephonyDisconnectCause)
	+ Objects.hashCode(mTelephonyPreciseDisconnectCause)
	+ Objects.hashCode(mImsReasonInfo);
	}

	@Override
	public boolean equals(Object o) {
	if (o instanceof DisconnectCause) {
	DisconnectCause d = (DisconnectCause) o;
	return Objects.equals(mDisconnectCode, d.getCode())
	&& Objects.equals(mDisconnectLabel, d.getLabel())
	&& Objects.equals(mDisconnectDescription, d.getDescription())
	&& Objects.equals(mDisconnectReason, d.getReason())
	&& Objects.equals(mToneToPlay, d.getTone())
	&& Objects.equals(mTelephonyDisconnectCause, d.getTelephonyDisconnectCause())
	&& Objects.equals(mTelephonyPreciseDisconnectCause,
	d.getTelephonyPreciseDisconnectCause())
	&& Objects.equals(mImsReasonInfo, d.getImsReasonInfo());
	}
	return false;
	}

	@Override
	public String toString() {
	String code = "";
	switch (mDisconnectCode) {
	case UNKNOWN:
	code = "UNKNOWN";
	break;
	case ERROR:
	code = "ERROR";
	break;
	case LOCAL:
	code = "LOCAL";
	break;
	case REMOTE:
	code = "REMOTE";
	break;
	case CANCELED:
	code = "CANCELED";
	break;
	case MISSED:
	code = "MISSED";
	break;
	case REJECTED:
	code = "REJECTED";
	break;
	case BUSY:
	code = "BUSY";
	break;
	case RESTRICTED:
	code = "RESTRICTED";
	break;
	case OTHER:
	code = "OTHER";
	break;
	case CONNECTION_MANAGER_NOT_SUPPORTED:
	code = "CONNECTION_MANAGER_NOT_SUPPORTED";
	break;
	case CALL_PULLED:
	code = "CALL_PULLED";
	break;
	case ANSWERED_ELSEWHERE:
	code = "ANSWERED_ELSEWHERE";
	break;
	default:
	code = "invalid code: " + mDisconnectCode;
	break;
	}
	String label = mDisconnectLabel == null ? "" : mDisconnectLabel.toString();
	String description = mDisconnectDescription == null
	? "" : mDisconnectDescription.toString();
	String reason = mDisconnectReason == null ? "" : mDisconnectReason;
	return "DisconnectCause [ Code: (" + code + ")"
	+ " Label: (" + label + ")"
	+ " Description: (" + description + ")"
	+ " Reason: (" + reason + ")"
	+ " Tone: (" + mToneToPlay + ") "
	+ " TelephonyCause: " + mTelephonyDisconnectCause + "/"
	+ mTelephonyPreciseDisconnectCause
	+ " ImsReasonInfo: "
	+ mImsReasonInfo
	+ "]";
	}
	}