老李推荐： 第8章4节《MonkeyRunner源码剖析》MonkeyRunner启动运行过程-启动AndroidDebugBridge 2

第81-86行，整个方法的主体就是创建一个”Device List Monitor”的线程。线程运行方法run直接调用DeviceMonitor的deviceMonitorLoop方法来进行无限循环监控设备状态了。

155 private void deviceMonitorLoop()

156 {

157 do

158 {

159 try

160 {

161 if (this.mMainAdbConnection == null) {

162 Log.d("DeviceMonitor", "Opening adb connection");

163 this.mMainAdbConnection =

openAdbConnection();

164 if (this.mMainAdbConnection == null) {

165 this.mConnectionAttempt += 1;

166 Log.e("DeviceMonitor", "Connection attempts: " + this.mConnectionAttempt);

167 if (this.mConnectionAttempt > 10) {

168 if (!this.mServer.startAdb()) {

169 this.mRestartAttemptCount += 1;

170 Log.e("DeviceMonitor", "adb restart attempts: " + this.mRestartAttemptCount);

171 }

172 else {

173 this.mRestartAttemptCount = 0;

174 }

175 }

176 waitABit();

177 } else {

178 Log.d("DeviceMonitor", "Connected to adb for device monitoring");

179 this.mConnectionAttempt = 0;

180 }

181 }

182

183 if ((this.mMainAdbConnection != null) &&

(!this.mMonitoring)) {

184 this.mMonitoring = sendDeviceListMonitoringRequest();

185 }

186

187 if (this.mMonitoring)

188 {

189 int length = readLength(this.mMainAdbConnection, this.mLengthBuffer);

190

191 if (length >= 0)

192 {

193 processIncomingDeviceData(length);

194

195

196 this.mInitialDeviceListDone = true;

197 }

198 }

199 }

200 catch (AsynchronousCloseException ace) {}catch (TimeoutException ioe)

201 {

202 handleExpectionInMonitorLoop(ioe);

203 } catch (IOException ioe) {

204 handleExpectionInMonitorLoop(ioe);

205 }

206 } while (!this.mQuit);

207 }

代码8-4-3 DeviceMonitor - deviceMonitorLoop

第一步:163行,如果还没有连接上的ADB服务器的话就先连接上

第二步: 168行，确保ADB服务器已经启动

第三步: 183-185行，往ADB服务器发送监控命令，监控所有连接上来的移除的设备

第四步: 处理所获得的监控设备列表

我们先看第一步，在上一节中我们已经看到ADB服务器的启动过程了，但是我们还没有看到ADB客户端是怎么连接上服务器的,一下的代码就是一个实例:

255 private SocketChannel openAdbConnection()

256 {

257 Log.d("DeviceMonitor", "Connecting to adb for Device List Monitoring...");

258

259 SocketChannel adbChannel = null;

260 try {

261 adbChannel =

SocketChannel.open(

AndroidDebugBridge.getSocketAddress());

262 adbChannel.socket().setTcpNoDelay(true);

263 }

264 catch (IOException e) {}

265

266 return adbChannel;

267 }

代码8-4-4 DeviceMonitor - openAdbConnection