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Code Issues Projects Releases Wiki Activity

Use cached conversation list to display quickly an old version of it

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This commit is contained in:
Pierre HUBERT 2019-03-01 18:42:36 +01:00
parent 038f2664f1
commit 87f5164d9b
4 changed files with 98 additions and 44 deletions
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71
app/src/main/java/org/communiquons/android/comunic/client/data/helpers/ConversationsListDbHelper.java
View File

@ -18,7 +18,25 @@ import java.util.ArrayList;
* Created by pierre on 12/13/17.
*/
public class ConversationsListDbHelper {
class ConversationsListDbHelper {
/**
* Debug tag
*/
private static final String TAG = ConversationsListDbHelper.class.getSimpleName();
/**
* The list of all the columns of the database
*/
private static final String[] mAllColumns = {
ConversationsListSchema.COLUMN_NAME_CONVERSATION_ID,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_ID_OWNER,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_LAST_ACTIVE,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_NAME,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_FOLLOWING,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_SAW_LAST_MESSAGES,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_MEMBERS,
};
/**
* Pointer on the database
@ -35,11 +53,40 @@ public class ConversationsListDbHelper {
*
* @param databaseHelper Object pointing on database helper
*/
public ConversationsListDbHelper(@NonNull DatabaseHelper databaseHelper){
ConversationsListDbHelper(@NonNull DatabaseHelper databaseHelper){
this.databaseHelper = databaseHelper;
}
/**
* Get the list of conversation stored in the database
*
* @return The list of conversations
*/
ArrayList<ConversationInfo> getList(){
SQLiteDatabase db = databaseHelper.getReadableDatabase();
Cursor c = db.query(TABLE_NAME, mAllColumns, null, null, null,
null,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_LAST_ACTIVE + " DESC");
ArrayList<ConversationInfo> list = new ArrayList<>();
if(c.getCount() < 1)
return list;
c.moveToFirst();
while(!c.isAfterLast()){
list.add(getConvObj(c));
c.moveToNext();
}
c.close();
return list;
}
/**
* Update the list of conversations currently installed in the system with a new list
*
@ -60,7 +107,6 @@ public class ConversationsListDbHelper {
success = false;
}
//db.close();
return success;
}
@ -77,35 +123,25 @@ public class ConversationsListDbHelper {
//Prepare database request
String table = ConversationsListSchema.TABLE_NAME;
String[] columns = {
ConversationsListSchema.COLUMN_NAME_CONVERSATION_ID,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_ID_OWNER,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_LAST_ACTIVE,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_NAME,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_FOLLOWING,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_SAW_LAST_MESSAGES,
ConversationsListSchema.COLUMN_NAME_CONVERSATION_MEMBERS,
};
String selection = ConversationsListSchema.COLUMN_NAME_CONVERSATION_ID + " = ?";
String[] selectionArgs = {""+convID};
//Perform database request
Cursor c = db.query(table, columns, selection, selectionArgs, null, null, null);
Cursor c = db.query(table, mAllColumns, selection, selectionArgs, null, null, null);
ConversationInfo infos = null;
ConversationInfo info = null;
//Check for result
if(c.getCount() != 0){
c.moveToFirst();
//Parse result
infos = getConvObj(c);
info = getConvObj(c);
}
c.close();
//db.close();
return infos;
return info;
}
@ -135,7 +171,6 @@ public class ConversationsListDbHelper {
//Prepare the request
db.delete(TABLE_NAME, null, null);
//db.close();
}
/**

9
app/src/main/java/org/communiquons/android/comunic/client/data/helpers/ConversationsListHelper.java
View File

@ -85,6 +85,15 @@ public class ConversationsListHelper extends BaseHelper {
return list;
}
/**
* Get the cached version of the list of conversation
*
* @return The cached list of conversations
*/
public ArrayList<ConversationInfo> getCachedList(){
return convDBHelper.getList();
}
/**
* Get information about a conversation
*

13
app/src/main/java/org/communiquons/android/comunic/client/ui/asynctasks/GetConversationsListTask.java
View File

@ -12,17 +12,24 @@ import java.util.ArrayList;
*
* @author Pierre HUBERT
*/
public class GetConversationsListTask extends SafeAsyncTask<Void, Void, ArrayList<ConversationInfo>> {
public class GetConversationsListTask extends SafeAsyncTask<Boolean, Void, ArrayList<ConversationInfo>> {
public GetConversationsListTask(Context context) {
super(context);
}
@Override
protected ArrayList<ConversationInfo> doInBackground(Void... voids) {
protected ArrayList<ConversationInfo> doInBackground(Boolean... booleans) {
ConversationsListHelper conversationsListHelper = new ConversationsListHelper(getContext());
ArrayList<ConversationInfo> list = conversationsListHelper.getOnline();
boolean getOnline = booleans[0];
ArrayList<ConversationInfo> list;
if(getOnline)
list = conversationsListHelper.getOnline();
else
list = conversationsListHelper.getCachedList();
if(list == null || !conversationsListHelper.getConversationsDisplayName(list))
return null;

47
app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationsListFragment.java
View File

@ -30,6 +30,7 @@ import org.communiquons.android.comunic.client.ui.listeners.openConversationList
import org.communiquons.android.comunic.client.ui.listeners.updateConversationListener;
import java.util.ArrayList;
import java.util.Objects;
/**
* Conversation list fragment
@ -92,6 +93,11 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
*/
private ProgressBar mProgressBar;
/**
* Specify whether we got the first version of the list of conversation
*/
private boolean mGotFirstList = false;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
@ -106,7 +112,7 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
DatabaseHelper dbHelper = DatabaseHelper.getInstance(getActivity());
//Instantiate the user information helper
userHelper = new GetUsersHelper(getActivity(), dbHelper);
userHelper = new GetUsersHelper(Objects.requireNonNull(getActivity()), dbHelper);
//Create the conversation list helper
conversationsListHelper = new ConversationsListHelper(getActivity(), dbHelper);
@ -122,7 +128,7 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
mNoConversationNotice.setVisibility(View.GONE);
//Refresh conversations list
refresh_conversations_list();
refresh_conversations_list(false);
//Set the open and update conversation listener
try {
@ -143,14 +149,14 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
super.onResume();
//Update activity title
getActivity().setTitle(R.string.fragment_conversationslist_title);
Objects.requireNonNull(getActivity()).setTitle(R.string.fragment_conversationslist_title);
MainActivity.SetNavbarSelectedOption(getActivity(), R.id.action_conversations);
}
/**
* Refresh the list of conversations
*/
private void refresh_conversations_list(){
private void refresh_conversations_list(boolean online){
//Display loading wheel
mProgressBar.setVisibility(View.VISIBLE);
@ -158,7 +164,7 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
//Get the list of conversations
GetConversationsListTask getConversationsListTask = new GetConversationsListTask(getActivity());
getConversationsListTask.setOnPostExecuteListener(this::display_conversations_list);
getConversationsListTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
getConversationsListTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, online);
getTasksManager().addTask(getConversationsListTask);
}
@ -167,13 +173,20 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
*
* @param list The list to display
*/
public void display_conversations_list(ArrayList<ConversationInfo> list){
public void display_conversations_list(@Nullable ArrayList<ConversationInfo> list){
display_progress_bar(false);
//Check if we were fetching the local list of conversation
if(!mGotFirstList) {
mGotFirstList = true;
refresh_conversations_list(true);
}
//Check if we got a list
if(list == null) {
Toast.makeText(getActivity(), R.string.fragment_conversationslist_err_get_list,
Toast.LENGTH_LONG).show();
display_progress_bar(false);
return;
}
@ -189,17 +202,11 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
//Add click listener
conversationsListView.setOnItemClickListener(this);
conversationsListView.setOnCreateContextMenuListener(new View.OnCreateContextMenuListener() {
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
MenuInflater inflater = getActivity().getMenuInflater();
conversationsListView.setOnCreateContextMenuListener((menu, v, menuInfo) -> {
MenuInflater inflater = Objects.requireNonNull(getActivity()).getMenuInflater();
inflater.inflate(R.menu.menu_fragment_conversationslist_item, menu);
}
});
//Remove progress bar
display_progress_bar(false);
//Update the visibility of the no conversation notice
updateNoConversationNotice();
}
@ -272,12 +279,8 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
.setMessage(R.string.popup_deleteconversation_messsage)
.setNegativeButton(R.string.popup_deleteconversation_cancel, null)
.setPositiveButton(R.string.popup_deleteconversation_confirm, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
delete_conversation(convID);
}
})
.setPositiveButton(R.string.popup_deleteconversation_confirm,
(dialog, which) -> delete_conversation(convID))
.show();
@ -303,7 +306,7 @@ public class ConversationsListFragment extends AbstractFragment implements Adapt
if(getActivity() == null)
return;
refresh_conversations_list();
refresh_conversations_list(true);
//Display a toast if an error occurred
if(!result)