0
我有這個線程。早些時候,我正在測試沒有線程的代碼,它工作正常。值被提取和處理。只要我把它放在線程中,Handler的handleMessage方法就不會被調用。有人可以幫忙嗎?線程中的處理程序的行爲是否不同?
public class ServiceQuery implements Runnable
{
public void run()
{
Looper.myLooper().prepare();
while(true)
{
Log.d("D","Starting");
fetch();
try
{
Thread.sleep(5000);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
}
private synchronized void fetch()
{
Log.d("D","In fetch()");
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("sessionid", Server.getInstance().getSessionID()));
nameValuePairs.add(new BasicNameValuePair("session", App.getInstance().getSelectedDoodle().getId()));
nameValuePairs.add(new BasicNameValuePair("passcode", App.getInstance().getSelectedDoodle().getPassword()));
nameValuePairs.add(new BasicNameValuePair("last-message-id", App.getInstance().lastDrawingID));
Handler handler = new Handler()
{
public void handleMessage(Message message)
{
Log.d("D","got response");
switch(message.what)
{
case HttpConnection.DID_SUCCEED:
Log.d("D","success" + message.obj.toString());
}
}
}
Server.getInstance().SendHTTPRequest("get-messages", nameValuePairs, handler);
Log.d("D","HTTP away");
}
}
謝謝....我想知道它,但我期待一個異常(空指針或什麼)。 – kishu27 2012-03-31 08:18:25