JAVA异步任务关键处理分析

public void doTaskAsync (int taskId, String taskUrl, HashMap taskArgs) {
		showLoadBar();
		taskPool.addTask(taskId, taskUrl, taskArgs, new BaseTask(){
			@Override
			public void onComplete (String httpResult) {
				sendMessage(BaseTask.TASK_COMPLETE, this.getId(), httpResult);
			}
			@Override
			public void onError (String error) {
				sendMessage(BaseTask.NETWORK_ERROR, this.getId(), null);
			}
		}, 0);
	}

	public void sendMessage (int what, int taskId, String data) {
		Bundle b = new Bundle();
		b.putInt("task", taskId);
		b.putString("data", data);
		Message m = new Message();
		m.what = what;
		m.setData(b);
		handler.sendMessage(m);
	}