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Timeout Processing

 

001 import java. util. Timer;
002 import java. util. TimerTask;
003
004 import android. app. Activity;
005 import android. OS. AsyncTask;
006 import android. OS. Bundle;
007 import android. widget. Toast;
008
009 public class TimeoutTestActivity extends Activity {
010 private final static int TIME_OUT = 3*1000;
011 private final static int SLEEP_TIME = 2*1000;
012
013 @ Override
014 public void onCreate (Bundle savedInstanceState ){
015 super. onCreate (savedInstanceState );
016 setContentView (R. layout. main );
017 // new timeouttask(cmd.exe cute ();
018 new cancelselfwhentimeouttask(cmd.exe cute ();
019}
020 www.2cto.com
021 private class CancelSelfWhenTimeOutTask extends AsyncTask <Void, Void, Void> {
022 private boolean done = false;
023
024 @ Override
025 protected Void doInBackground (Void... params ){
026 cancelSelfWhenTimeOut ();
027 sleep ();
028 return null;
029}
030
031 @ Override
032 protected void onPostExecute (Void result ){
033 super. onPostExecute (result );
034 Toast. makeText (TimeoutTestActivity. this, "task completed", Toast. LENGTH_SHORT)
035. show ();
036}
037
038 private void cancelSelfWhenTimeOut (){
039 new Timer (). schedule (new TimerTask (){
040
041 @ Override
042 public void run (){
043 if (! Done ){
044 CancelSelfWhenTimeOutTask. this. cancel (true );
045}
046}
047}, TIME_OUT );
048}
049
050 private void sleep (){
051 try {
052 Thread. sleep (SLEEP_TIME );
053 done = true;
054} catch (InterruptedException e ){
055}
056}
057}
058
059 private class TimeOutTask extends AsyncTask <Void, Void, Void> {
060 private boolean done = false;
061 private boolean isTimeOut = false;
062
063 @ Override
064 protected Void doInBackground (Void... params ){
065 try {
066 throwTimeOutException ();
067} catch (Exception e ){
068 isTimeOut = true;
069}
070 sleep ();
071 return null;
072}
073
074 @ Override
075 protected void onPostExecute (Void result ){
076 super. onPostExecute (result );
077 if (isTimeOut ){
078 Toast. makeText (TimeoutTestActivity. this, "task timeout ",
079 Toast. LENGTH_SHORT). show ();
080} else {
081 Toast. makeText (TimeoutTestActivity. this, "task completed ",
082 Toast. LENGTH_SHORT). show ();
083}
084}
085
086 private void throwTimeOutException (){
087 new Timer (). schedule (new TimerTask (){
088
089 @ Override
090 public void run (){
091 if (! Done ){
092 isTimeOut = true;
093}
094}
095}, TIME_OUT );
096}
097
098 private void sleep (){
099 try {
100 Thread. sleep (SLEEP_TIME );
101 done = true;
102} catch (InterruptedException e ){
103}
104}
105}
106
107}

Author: Dean83