Android example source code file (CdmaCall.java)

This example Android source code file (CdmaCall.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

active, alerting, android, callstateexception, cdmacall, cdmaconnection, drivercall, holding, incoming, list, phone, runtimeexception, state, string, telephony, util, waiting

The CdmaCall.java Android example source code

/*
 * Copyright (C) 2006 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 com.android.internal.telephony.cdma;

import java.util.ArrayList;
import java.util.List;

import com.android.internal.telephony.Call;
import com.android.internal.telephony.CallStateException;
import com.android.internal.telephony.Connection;
import com.android.internal.telephony.DriverCall;
import com.android.internal.telephony.Phone;
import com.android.internal.telephony.Call.State;

/**
 * {@hide}
 */
public final class CdmaCall extends Call {
    /*************************** Instance Variables **************************/

    /*package*/ ArrayList<Connection> connections = new ArrayList();
    /*package*/ State state = State.IDLE;
    /*package*/ CdmaCallTracker owner;

    /***************************** Class Methods *****************************/

    static State
    stateFromDCState (DriverCall.State dcState) {
        switch (dcState) {
            case ACTIVE:        return State.ACTIVE;
            case HOLDING:       return State.HOLDING;
            case DIALING:       return State.DIALING;
            case ALERTING:      return State.ALERTING;
            case INCOMING:      return State.INCOMING;
            case WAITING:       return State.WAITING;
            default:            throw new RuntimeException ("illegal call state:" + dcState);
        }
    }


    /****************************** Constructors *****************************/
    /*package*/
    CdmaCall (CdmaCallTracker owner) {
        this.owner = owner;
    }

    public void dispose() {
    }

    /************************** Overridden from Call *************************/
    public List<Connection>
    getConnections() {
        // FIXME should return Collections.unmodifiableList();
        return connections;
    }

    public State
    getState() {
        return state;
    }

    public Phone
    getPhone() {
        //TODO, see GsmCall
        return null;
    }

    public boolean isMultiparty() {
        return connections.size() > 1;
    }

    /** Please note: if this is the foreground call and a
     *  background call exists, the background call will be resumed
     *  because an AT+CHLD=1 will be sent
     */
    public void
    hangup() throws CallStateException {
        owner.hangup(this);
    }

    public String
    toString() {
        return state.toString();
    }

    //***** Called from CdmaConnection

    /*package*/ void
    attach(Connection conn, DriverCall dc) {
        connections.add(conn);

        state = stateFromDCState (dc.state);
    }

    /*package*/ void
    attachFake(Connection conn, State state) {
        connections.add(conn);

        this.state = state;
    }

    /**
     * Called by CdmaConnection when it has disconnected
     */
    void
    connectionDisconnected(CdmaConnection conn) {
        if (state != State.DISCONNECTED) {
            /* If only disconnected connections remain, we are disconnected*/

            boolean hasOnlyDisconnectedConnections = true;

            for (int i = 0, s = connections.size()  ; i < s; i ++) {
                if (connections.get(i).getState()
                    != State.DISCONNECTED
                ) {
                    hasOnlyDisconnectedConnections = false;
                    break;
                }
            }

            if (hasOnlyDisconnectedConnections) {
                state = State.DISCONNECTED;
            }
        }
    }


    /*package*/ void
    detach(CdmaConnection conn) {
        connections.remove(conn);

        if (connections.size() == 0) {
            state = State.IDLE;
        }
    }

    /*package*/ boolean
    update (CdmaConnection conn, DriverCall dc) {
        State newState;
        boolean changed = false;

        newState = stateFromDCState(dc.state);

        if (newState != state) {
            state = newState;
            changed = true;
        }

        return changed;
    }

    /**
     * @return true if there's no space in this call for additional
     * connections to be added via "conference"
     */
    /*package*/ boolean
    isFull() {
        return connections.size() == CdmaCallTracker.MAX_CONNECTIONS_PER_CALL;
    }

    //***** Called from CdmaCallTracker


    /**
     * Called when this Call is being hung up locally (eg, user pressed "end")
     * Note that at this point, the hangup request has been dispatched to the radio
     * but no response has yet been received so update() has not yet been called
     */
    void
    onHangupLocal() {
        for (int i = 0, s = connections.size(); i < s; i++) {
            CdmaConnection cn = (CdmaConnection)connections.get(i);

            cn.onHangupLocal();
        }
        state = State.DISCONNECTING;
    }

    /**
     * Called when it's time to clean up disconnected Connection objects
     */
   void clearDisconnected() {
        for (int i = connections.size() - 1 ; i >= 0 ; i--) {
        CdmaConnection cn = (CdmaConnection)connections.get(i);

            if (cn.getState() == State.DISCONNECTED) {
                connections.remove(i);
            }
        }

        if (connections.size() == 0) {
            state = State.IDLE;
        }
    }
}