¡@
2014/10/16 ¤W¤È 08:13:16
android Programming Glossary: executorHow AsyncTask works in Android http://stackoverflow.com/questions/10480599/how-asynctask-works-in-android how AsyncTask works internally. I know it uses the Java Executor to perform the operations but still some of the questions I.. thread one by one processing . But the new method executeOnExecutor is introduced to give you a possibility to run simultaneous..
AsyncTaskLoader onLoadFinished with a pending task and config change http://stackoverflow.com/questions/11515934/asynctaskloader-onloadfinished-with-a-pending-task-and-config-change For example UI thread final Handler handler new Handler Executor someExecutorService ... someExecutorService.execute new Runnable.. UI thread final Handler handler new Handler Executor someExecutorService ... someExecutorService.execute new Runnable public void.. handler new Handler Executor someExecutorService ... someExecutorService.execute new Runnable public void run some heavy operations..
AsyncTasks do not get collected causing other AsyncTasks to not run http://stackoverflow.com/questions/11705285/asynctasks-do-not-get-collected-causing-other-asynctasks-to-not-run these AsyncTasks never stop running and clogging up the Executor java android garbage collection android asynctask threadpool.. 128 private static final int KEEP_ALIVE 1 ... ... An @link Executor that can be used to execute tasks in parallel. public static.. be used to execute tasks in parallel. public static final Executor THREAD_POOL_EXECUTOR new ThreadPoolExecutor CORE_POOL_SIZE MAXIMUM_POOL_SIZE..
Android AsyncTask for Long Running Operations http://stackoverflow.com/questions/12797550/android-asynctask-for-long-running-operations APIs provided by the java.util.concurrent pacakge such as Executor ThreadPoolExecutor and FutureTask. Now my question arises why.. java.util.concurrent pacakge such as Executor ThreadPoolExecutor and FutureTask. Now my question arises why The doInBackground..
How can i just download image with universal-image-loader http://stackoverflow.com/questions/16016619/how-can-i-just-download-image-with-universal-image-loader those image right now. You can download files using Executor or creating a thread. You don't need to use universal imageloader... http developer.android.com reference java util concurrent Executor.html . You can also use a DownloadManager and save the file..
How to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor? http://stackoverflow.com/questions/3929361/how-to-wait-for-all-tasks-in-an-threadpoolexecutor-to-finish-without-shutting-do to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor I can't use shutdown.. an ThreadPoolExecutor to finish without shutting down the Executor I can't use shutdown and awaitTermination because it is possible.. it is possible new tasks will be added to the ThreadPoolExecutor while it is waiting. So I'm looking for a way to wait until..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible you truly want parallel execution you can use the executeOnExecutor Executor Params... version of this method with THREAD_POOL_EXECUTOR.. want parallel execution you can use the executeOnExecutor Executor Params... version of this method with THREAD_POOL_EXECUTOR however.. your custom thread pool executor via AsyncTask.executeOnExecutor Executor exec Params... params method. This allows for instance..
HandlerThread vs Executor - When is one more appropriate over the other? http://stackoverflow.com/questions/7462098/handlerthread-vs-executor-when-is-one-more-appropriate-over-the-other vs Executor When is one more appropriate over the other I'm just curious.. about whether there are times in which I should choose an Executor over a HandlerThread . Are there times that one is superior.. handling each request on a separate thread created by an Executor . Even though I gave a specific example I'm really just looking..
Can an Android AsyncTask doInBackground be synchronized to serialize the task execution? http://stackoverflow.com/questions/9893813/can-an-android-asynctask-doinbackground-be-synchronized-to-serialize-the-task-ex AsyncTask documentation . The solution is to use a custom Executor to serialize the tasks or if you use API 11 or above AsyncTask#executeOnExecutor.. the tasks or if you use API 11 or above AsyncTask#executeOnExecutor as suggested in the comments below. I posted an answer showing.. I posted an answer showing an implementation of a SerialExecutor that can be used to queue tasks that will be executed sequentially...
AsyncTask called from Handler will not execute doInBackground http://stackoverflow.com/questions/10328645/asynctask-called-from-handler-will-not-execute-doinbackground AsyncTask switched the Threading model to a serial executor again which is not compatible with my approach of having 2 AsyncTasks..
How AsyncTask works in Android http://stackoverflow.com/questions/10480599/how-asynctask-works-in-android tasks if you wish there two different standard executors SERIAL_EXECUTOR and THREAD_POOL_EXECUTOR . The way how tasks.. . The way how tasks are enqueued also depends on what executor you use. In case of a parallel one you are restricted with a.. . When you start 100000 with default execute method serial executor is used. Since tasks that cannot be processed immediately are..
AsyncTasks do not get collected causing other AsyncTasks to not run http://stackoverflow.com/questions/11705285/asynctasks-do-not-get-collected-causing-other-asynctasks-to-not-run I can't start any AsyncTasks. I fixed it by changing the executor to THREAD_POOL_EXECUTOR which allows 15 threads to be pooled... question android.os.AsyncTask come with two built in executor. if using SERIAL_EXECUTOR there is no threadpool and all AsyncTask..
http://stackoverflow.com/questions/3553163/android-long-touch-event if mUpdater null Log.e getClass .getSimpleName Another executor is still active return mUpdater Executors.newSingleThreadScheduledExecutor..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible be run simultaneously. Since AsyncTask uses a thread pool executor with limited max number of worker threads 128 and the delayed.. from 3.0 the API allows to use your custom thread pool executor via AsyncTask.executeOnExecutor Executor exec Params... params..
HandlerThread vs Executor - When is one more appropriate over the other? http://stackoverflow.com/questions/7462098/handlerthread-vs-executor-when-is-one-more-appropriate-over-the-other thread to run my queries. I believe your choice of executor sounds appropriate since you want to handle multiple incoming..
Android AsyncTask threads limits? http://stackoverflow.com/questions/9654148/android-asynctask-threads-limits size threads currently active and a new job comes in the executor will create a new thread and execute it immediately. If there.. enter doInBackground as the queue will become full and the executor is pushed to create more worker threads. If you kept with the..
Can an Android AsyncTask doInBackground be synchronized to serialize the task execution? http://stackoverflow.com/questions/9893813/can-an-android-asynctask-doinbackground-be-synchronized-to-serialize-the-task-ex void run This can be extended and used as a serial task executor in an Activity public class MyActivity extends Activity private..
How AsyncTask works in Android http://stackoverflow.com/questions/10480599/how-asynctask-works-in-android AsyncTask works in Android I want to know how AsyncTask works internally. I know it uses the Java Executor to perform the operations but still some of the questions I am not understanding. Like How many AsyncTask can be started.. default behavior is switched back to use of a single worker thread one by one processing . But the new method executeOnExecutor is introduced to give you a possibility to run simultaneous tasks if you wish there two different standard executors SERIAL_EXECUTOR..
AsyncTaskLoader onLoadFinished with a pending task and config change http://stackoverflow.com/questions/11515934/asynctaskloader-onloadfinished-with-a-pending-task-and-config-change in any inner classes. Runnable is the most used case. For example UI thread final Handler handler new Handler Executor someExecutorService ... someExecutorService.execute new Runnable public void run some heavy operations ... notification.. inner classes. Runnable is the most used case. For example UI thread final Handler handler new Handler Executor someExecutorService ... someExecutorService.execute new Runnable public void run some heavy operations ... notification to UI thread.. is the most used case. For example UI thread final Handler handler new Handler Executor someExecutorService ... someExecutorService.execute new Runnable public void run some heavy operations ... notification to UI thread handler.post new Runnable..
AsyncTasks do not get collected causing other AsyncTasks to not run http://stackoverflow.com/questions/11705285/asynctasks-do-not-get-collected-causing-other-asynctasks-to-not-run but this is just avoiding it. What could be the reason that these AsyncTasks never stop running and clogging up the Executor java android garbage collection android asynctask threadpool share improve this question android.os.AsyncTask come.. CORE_POOL_SIZE 5 private static final int MAXIMUM_POOL_SIZE 128 private static final int KEEP_ALIVE 1 ... ... An @link Executor that can be used to execute tasks in parallel. public static final Executor THREAD_POOL_EXECUTOR new ThreadPoolExecutor.. final int KEEP_ALIVE 1 ... ... An @link Executor that can be used to execute tasks in parallel. public static final Executor THREAD_POOL_EXECUTOR new ThreadPoolExecutor CORE_POOL_SIZE MAXIMUM_POOL_SIZE KEEP_ALIVE TimeUnit.SECONDS sPoolWorkQueue..
Android AsyncTask for Long Running Operations http://stackoverflow.com/questions/12797550/android-asynctask-for-long-running-operations periods of time it is highly recommended you use the various APIs provided by the java.util.concurrent pacakge such as Executor ThreadPoolExecutor and FutureTask. Now my question arises why The doInBackground function runs off the UI thread. So what.. is highly recommended you use the various APIs provided by the java.util.concurrent pacakge such as Executor ThreadPoolExecutor and FutureTask. Now my question arises why The doInBackground function runs off the UI thread. So what harm can we have..
How can i just download image with universal-image-loader http://stackoverflow.com/questions/16016619/how-can-i-just-download-image-with-universal-image-loader for cache in a thread for future display . I don't need to display those image right now. You can download files using Executor or creating a thread. You don't need to use universal imageloader. http developer.android.com reference java util concurrent.. a thread. You don't need to use universal imageloader. http developer.android.com reference java util concurrent Executor.html . You can also use a DownloadManager and save the file in sdcard. You can retrieve the same for later use. http oodlestechnologies.com..
How to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor? http://stackoverflow.com/questions/3929361/how-to-wait-for-all-tasks-in-an-threadpoolexecutor-to-finish-without-shutting-do to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor I can't use shutdown and awaitTermination because it is possible new tasks.. to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor I can't use shutdown and awaitTermination because it is possible new tasks will be added to the ThreadPoolExecutor while.. Executor I can't use shutdown and awaitTermination because it is possible new tasks will be added to the ThreadPoolExecutor while it is waiting. So I'm looking for a way to wait until the ThreadPoolExecutor has emptied it's queue and finished all..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible common application errors caused by parallel execution. If you truly want parallel execution you can use the executeOnExecutor Executor Params... version of this method with THREAD_POOL_EXECUTOR however see commentary there for warnings on its use... errors caused by parallel execution. If you truly want parallel execution you can use the executeOnExecutor Executor Params... version of this method with THREAD_POOL_EXECUTOR however see commentary there for warnings on its use. DONUT is.. . Starting from 3.0 the API allows to use your custom thread pool executor via AsyncTask.executeOnExecutor Executor exec Params... params method. This allows for instance to configure the size of the delayed tasks queue if default..
HandlerThread vs Executor - When is one more appropriate over the other? http://stackoverflow.com/questions/7462098/handlerthread-vs-executor-when-is-one-more-appropriate-over-the-other vs Executor When is one more appropriate over the other I'm just curious about whether there are times in which I should choose an.. is one more appropriate over the other I'm just curious about whether there are times in which I should choose an Executor over a HandlerThread . Are there times that one is superior over the other or should I really just stick with the HandlerThread.. I'm currently listening to a ServerSocket for connections and handling each request on a separate thread created by an Executor . Even though I gave a specific example I'm really just looking for cases in which one is more appropriate than the other...
Can an Android AsyncTask doInBackground be synchronized to serialize the task execution? http://stackoverflow.com/questions/9893813/can-an-android-asynctask-doinbackground-be-synchronized-to-serialize-the-task-ex instance as specified in the Threading rules section of the AsyncTask documentation . The solution is to use a custom Executor to serialize the tasks or if you use API 11 or above AsyncTask#executeOnExecutor as suggested in the comments below. I posted.. . The solution is to use a custom Executor to serialize the tasks or if you use API 11 or above AsyncTask#executeOnExecutor as suggested in the comments below. I posted an answer showing an implementation of a SerialExecutor that can be used to.. as suggested in the comments below. I posted an answer showing an implementation of a SerialExecutor that can be used to queue tasks that will be executed sequentially. android synchronization android asynctask share improve..
AsyncTask called from Handler will not execute doInBackground http://stackoverflow.com/questions/10328645/asynctask-called-from-handler-will-not-execute-doinbackground everyone involved in threading reads this discussion carefully. AsyncTask switched the Threading model to a serial executor again which is not compatible with my approach of having 2 AsyncTasks it seems. Finally I switched the handling of the Download..
How AsyncTask works in Android http://stackoverflow.com/questions/10480599/how-asynctask-works-in-android is introduced to give you a possibility to run simultaneous tasks if you wish there two different standard executors SERIAL_EXECUTOR and THREAD_POOL_EXECUTOR . The way how tasks are enqueued also depends on what executor you use. In case.. standard executors SERIAL_EXECUTOR and THREAD_POOL_EXECUTOR . The way how tasks are enqueued also depends on what executor you use. In case of a parallel one you are restricted with a limit of 10 new LinkedBlockingQueue Runnable 10 . In case of.. that number of threads in the pool can vary in range 5..128 . When you start 100000 with default execute method serial executor is used. Since tasks that cannot be processed immediately are enqueued you get OutOfMemoryError thousands of tasks are added..
AsyncTasks do not get collected causing other AsyncTasks to not run http://stackoverflow.com/questions/11705285/asynctasks-do-not-get-collected-causing-other-asynctasks-to-not-run every AsyncTask says running behind it and after 5 AsyncTasks I can't start any AsyncTasks. I fixed it by changing the executor to THREAD_POOL_EXECUTOR which allows 15 threads to be pooled. But the AsyncTasks still show as running. The AsyncTasks all.. collection android asynctask threadpool share improve this question android.os.AsyncTask come with two built in executor. if using SERIAL_EXECUTOR there is no threadpool and all AsyncTask get execute one at a time in serial order. if using THREAD_POOL_EXECUTOR..
http://stackoverflow.com/questions/3553163/android-long-touch-event mCounter private void startUpdating boolean inc if mUpdater null Log.e getClass .getSimpleName Another executor is still active return mUpdater Executors.newSingleThreadScheduledExecutor mUpdater.scheduleAtFixedRate new UpdateCounterTask..
Running multiple AsyncTasks at the same time — not possible? http://stackoverflow.com/questions/4068984/running-multiple-asynctasks-at-the-same-time-not-possible run simultaneously. There is a limit of how many tasks can be run simultaneously. Since AsyncTask uses a thread pool executor with limited max number of worker threads 128 and the delayed tasks queue has fixed size 10 if you try to execute more than.. with java.util.concurrent.RejectedExecutionException . Starting from 3.0 the API allows to use your custom thread pool executor via AsyncTask.executeOnExecutor Executor exec Params... params method. This allows for instance to configure the size of..
HandlerThread vs Executor - When is one more appropriate over the other? http://stackoverflow.com/questions/7462098/handlerthread-vs-executor-when-is-one-more-appropriate-over-the-other want to generate an ANR so I use a Handler running on a background thread to run my queries. I believe your choice of executor sounds appropriate since you want to handle multiple incoming requests simultaneously and a Handler can only do one at a..
Android AsyncTask threads limits? http://stackoverflow.com/questions/9654148/android-asynctask-threads-limits and the maximum pool size . If there are less than core pool size threads currently active and a new job comes in the executor will create a new thread and execute it immediately. If there are at least core pool size threads running it will try to.. than 6 tasks e.g. 30 you will see that more than 6 will enter doInBackground as the queue will become full and the executor is pushed to create more worker threads. If you kept with the long running task you should see that 20 30 become active..
Can an Android AsyncTask doInBackground be synchronized to serialize the task execution? http://stackoverflow.com/questions/9893813/can-an-android-asynctask-doinbackground-be-synchronized-to-serialize-the-task-ex thread private class OnPostExecute implements Runnable public void run This can be extended and used as a serial task executor in an Activity public class MyActivity extends Activity private MySerialExecutor mSerialExecutor @Override public void onCreate..
|