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Code Issues Projects Releases Wiki Activity

Create SafeAsyncTasks manager

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This commit is contained in:
Pierre HUBERT 2018-09-04 10:30:51 +02:00
parent 2a266aaa7a
commit c66365b002
5 changed files with 177 additions and 28 deletions
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7
app/src/main/java/org/communiquons/android/comunic/client/ui/asynctasks/SafeAsyncTask.java
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@ -50,6 +50,13 @@ public abstract class SafeAsyncTask<Params, Progress, Result>
this.onPostExecuteListener = onPostExecuteListener;
}
/**
* Remove current onPostExecuteListener
*/
public void removeOnPostExecuteListener(){
this.onPostExecuteListener = null;
}
/**
* Check whether the a OnPostExecuteListener has been set or not
*

108
app/src/main/java/org/communiquons/android/comunic/client/ui/asynctasks/SafeAsyncTasksManager.java Normal file
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@ -0,0 +1,108 @@
package org.communiquons.android.comunic.client.ui.asynctasks;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import java.util.ArrayList;
/**
* SafeAsyncTask manager
*
* Allows an easy management of AsyncTasks
*
* @author Pierre HUBERT
*/
public class SafeAsyncTasksManager {
/**
* The list of tasks
*/
private ArrayList<SafeAsyncTask> mTasks = new ArrayList<>();
/**
* Add a task to the manager
*
* @param task The task to add
*/
public void addTask(@NonNull SafeAsyncTask task){
addTask(task, false);
}
/**
* Add a task to the manager
*
* @param task The task to add
* @param unsetSimilar Set to true to remove any similar class
*/
public void addTask(@NonNull SafeAsyncTask task, boolean unsetSimilar){
if(unsetSimilar)
unsetSpecificTasks(task.getClass());
mTasks.add(task);
}
/**
* Get the first task that belongs to a specific class
*
* @param cls The kind of class to search for
* @return The first task, or null if none found
*/
@Nullable
public SafeAsyncTask getTask(Class<?> cls){
for(SafeAsyncTask task : mTasks){
if(task.getClass().equals(cls))
return task;
}
return null;
}
/**
* Remove a task from the manager
*
* @param task The task to removes
*/
public void removeTask(SafeAsyncTask task){
mTasks.remove(task);
}
/**
* Unset a task
*
* @param task The task to unset
*/
public void unsetTask(@Nullable SafeAsyncTask task){
if(task != null) {
task.removeOnPostExecuteListener();
removeTask(task);
}
}
/**
* Unset all running tasks
*/
public synchronized void unsetAllTasks(){
for(SafeAsyncTask task : mTasks){
if(task != null)
task.removeOnPostExecuteListener();
}
mTasks = new ArrayList<>();
}
/**
* Unset only a specific kind of class
*
* @param cls The tasks to disable
*/
public void unsetSpecificTasks(Class<?> cls){
for (SafeAsyncTask task : mTasks){
if(task.getClass().equals(cls))
unsetTask(task);
}
}
}

45
app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/AbstractFragment.java Normal file
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@ -0,0 +1,45 @@
package org.communiquons.android.comunic.client.ui.fragments;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import org.communiquons.android.comunic.client.ui.asynctasks.SafeAsyncTasksManager;
/**
* Base fragment for the fragments of the application
*
* Integrates task manager
*
* @author Pierre HUBERT
*/
public abstract class AbstractFragment extends Fragment {
/**
* Tasks manager
*/
private SafeAsyncTasksManager mTasksManager;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mTasksManager = new SafeAsyncTasksManager();
}
@Override
public void onDestroy() {
super.onDestroy();
getTasksManager().unsetAllTasks();
}
/**
* Get the task manager associated with the fragment
*
* @return The task manager
*/
SafeAsyncTasksManager getTasksManager() {
return mTasksManager;
}
}

3
app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/AbstractPostsListFragment.java
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@ -7,7 +7,6 @@ import android.os.Bundle;
import android.support.annotation.CallSuper;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
@ -56,7 +55,7 @@ import java.util.Objects;
* Created by pierre on 3/18/18.
*/
public abstract class AbstractPostsListFragment extends Fragment
public abstract class AbstractPostsListFragment extends AbstractFragment
implements onPostUpdateListener, OnScrollChangeDetectListener, PostsCreateFormFragment.OnPostCreated {
/**

42
app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/LatestPostsFragment.java
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@ -24,11 +24,6 @@ public class LatestPostsFragment extends AbstractPostsListFragment {
*/
private static final String TAG = "LatestPostsFragment";
/**
* Load posts task
*/
private GetLatestPostsTask mGetLatestPostsTask;
@Override
public void onResume() {
super.onResume();
@ -41,16 +36,7 @@ public class LatestPostsFragment extends AbstractPostsListFragment {
@Override
public void onStop() {
super.onStop();
unset_all_load_tasks();
}
/**
* Unset all pending load tasks
*/
private void unset_all_load_tasks(){
if(mGetLatestPostsTask != null)
mGetLatestPostsTask.setOnPostExecuteListener(null);
getTasksManager().unsetAllTasks();
}
/**
@ -60,25 +46,28 @@ public class LatestPostsFragment extends AbstractPostsListFragment {
*/
private boolean is_loading_posts() {
return mGetLatestPostsTask != null &&
mGetLatestPostsTask.hasOnPostExecuteListener() &&
!mGetLatestPostsTask.isCancelled() &&
mGetLatestPostsTask.getStatus() != AsyncTask.Status.FINISHED;
SafeAsyncTask task = getTasksManager().getTask(GetLatestPostsTask.class);
return task != null &&
task.hasOnPostExecuteListener() &&
!task.isCancelled() &&
task.getStatus() != AsyncTask.Status.FINISHED;
}
@Override
public void onLoadPosts() {
//Get the list of latest posts
unset_all_load_tasks();
mGetLatestPostsTask = new GetLatestPostsTask(getActivity());
mGetLatestPostsTask.setOnPostExecuteListener(new SafeAsyncTask.OnPostExecuteListener<PostsList>() {
getTasksManager().unsetSpecificTasks(GetLatestPostsTask.class);
GetLatestPostsTask getLatestPostsTask = new GetLatestPostsTask(getActivity());
getLatestPostsTask.setOnPostExecuteListener(new SafeAsyncTask.OnPostExecuteListener<PostsList>() {
@Override
public void OnPostExecute(PostsList posts) {
onGotNewPosts(posts);
}
});
mGetLatestPostsTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
getLatestPostsTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
getTasksManager().addTask(getLatestPostsTask, true);
}
@Override
@ -100,14 +89,15 @@ public class LatestPostsFragment extends AbstractPostsListFragment {
int start = last_post_id - 1;
//Get older posts
mGetLatestPostsTask = new GetLatestPostsTask(getActivity());
mGetLatestPostsTask.setOnPostExecuteListener(new SafeAsyncTask.OnPostExecuteListener<PostsList>() {
GetLatestPostsTask getLastestPostsTask = new GetLatestPostsTask(getActivity());
getLastestPostsTask.setOnPostExecuteListener(new SafeAsyncTask.OnPostExecuteListener<PostsList>() {
@Override
public void OnPostExecute(PostsList posts) {
onGotNewPosts(posts);
}
});
mGetLatestPostsTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, start);
getLastestPostsTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, start);
getTasksManager().addTask(getLastestPostsTask, true);
}
@Override