bVNC 客户端源码分析(android)

1)登录界面

2)桌面Activity

3)启动vnc                                                      

4)显示桌面

1)登录界面

com.iiordanov.bVNC.bVNC.java

创建登录界面（填IP，PORT等等

@Override

public void onCreate(Bundle icicle) {

    goButton = (Button) findViewById(R.id.buttonGO);

    goButton.setOnClickListener(new View.OnClickListener() {

    @Override

    public void onClick(View view) {

        if (ipText.getText().length() != 0 && portText.getText().length() != 0)

            canvasStart();

        else

            Toast.makeText(view.getContext(), R.string.vnc_server_empty, Toast.LENGTH_LONG).show();

        }

    });

}

private void canvasStart() {

    if (selected == null) return;

    MemoryInfo info = Utils.getMemoryInfo(this);

    if (info.lowMemory)

        System.gc();

    start();

}

/**

 * Starts the activity which makes a VNC connection and displays the remote desktop.

 */

private void start () {

    isConnecting = true;

    //从登陆界面读取数据写入bean

    updateSelectedFromView();

    saveAndWriteRecent();

    //启动RemoteCanvasActivity, 参数为selected.Gen_getValues()

    Intent intent = new Intent(this, RemoteCanvasActivity.class);

    intent.putExtra(Constants.CONNECTION,selected.Gen_getValues());

    startActivity(intent);

}

 2)桌面Activity

com.iiordanov.bVNC.RemoteCanvasActivity.java

@Override

public void onCreate(Bundle icicle) {

    super.onCreate(icicle);

    //读取bean传过来的参数

    initialize();

    //继续连接，也就是向VNC服务端发起连接

    continueConnecting();

}

void continueConnecting () {

    // Initialize and define actions for on-screen keys.

    initializeOnScreenKeys ();

    //实际发起连接

    canvas.initializeCanvas(connection, database, new Runnable() {

        public void run() {

            try { setModes(); } catch (NullPointerException e) { }

        }

    });

}

              

3)启动vnc                                                                       

com.iiordanov.bVNC.RemoteCanvas.java

/**

 * Create a view showing a remote desktop connection

 * @param context Containing context (activity)

 * @param bean Connection settings

 * @param setModes Callback to run on UI thread after connection is set up

 */

void initializeCanvas(ConnectionBean bean, Database db, final Runnable setModes) {

    

    Thread t = new Thread () {

        public void run() {

            try {

                if (isSpice) {

                    startSpiceConnection();

                } else if (isRdp) {

                    startRdpConnection();

                } else if (connection.getConnectionType() < 4) {

                    //启动连接

                    startVncConnection();

                }

            }

        }

    }

}

/**

 * Starts a VNC connection using the TightVNC backend.

 * @throws Exception

 */

private void startVncConnection() throws Exception {

    Log.i(TAG, "Connecting to: " + connection.getAddress() + ", port: " + connection.getPort());

    

    String address = getAddress();

    int vncPort = getPort(connection.getPort());

    boolean anonTLS = (connection.getConnectionType() == Constants.CONN_TYPE_ANONTLS);

    try {

        rfb = new RfbProto(decoder, address, vncPort,

                            connection.getPrefEncoding(), connection.getViewOnly());

        Log.v(TAG, "Connected to server: " + address + " at port: " + vncPort);

        rfb.initializeAndAuthenticate(connection.getUserName(), connection.getPassword(),

                                        connection.getUseRepeater(), connection.getRepeaterId(), anonTLS);

    } catch (Exception e) {

        throw new Exception (getContext().getString(R.string.error_vnc_unable_to_connect) + e.getLocalizedMessage());

    }

    

    rfbconn = rfb;

    pointer = new RemoteVncPointer (rfbconn, RemoteCanvas.this, handler);

    keyboard = new RemoteVncKeyboard (rfbconn, RemoteCanvas.this, handler);

    

    rfb.writeClientInit();

    rfb.readServerInit();

    initializeBitmap (displayWidth, displayHeight);

    decoder.setPixelFormat(rfb);

    

    handler.post(new Runnable() {

        public void run() {

            pd.setMessage(getContext().getString(R.string.info_progress_dialog_downloading));

        }

    });

    

    sendUnixAuth ();

    if (connection.getUseLocalCursor())

        initializeSoftCursor();

    

    handler.post(drawableSetter);

    handler.post(setModes);

    handler.post(desktopInfo);

                                                                                                                                                          

    // Hide progress dialog

    if (pd.isShowing())

        pd.dismiss();

    

    rfb.processProtocol(this, connection.getUseLocalCursor());

}

4)显示桌面

com.iiordanov.bVNC.RfbProto.java

java实现的RFB图像显示

public void processProtocol () throws Exception {

}


<script>window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script>

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