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Use loader and background service for loading of stuff.
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@pilhuhn
pilhuhn committed Oct 13, 2013
1 parent 54280de commit 59855f3
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Showing 5 changed files with 308 additions and 13 deletions.
1 change: 1 addition & 0 deletions AndroidManifest.xml
View file
Expand Up @@ -83,6 +83,7 @@
<activity android:name=".MainActivity" />

<service android:name=".UpdateStatusService"/>
<service android:name=".helper.FetchTimelinesService"/>
</application>

</manifest>
98 changes: 98 additions & 0 deletions src/de/bsd/zwitscher/MainActivity.java
View file
Expand Up @@ -8,16 +8,23 @@
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SpinnerAdapter;
import de.bsd.zwitscher.account.Account;
import de.bsd.zwitscher.account.AccountHolder;
import de.bsd.zwitscher.account.AccountNavigationListener;
import de.bsd.zwitscher.account.AccountStuffActivity;
import de.bsd.zwitscher.account.LoginActivity;
import de.bsd.zwitscher.helper.CleanupTask;
import de.bsd.zwitscher.helper.FetchTimelinesService;

import java.util.ArrayList;
import java.util.List;
Expand All @@ -35,6 +42,9 @@ public class MainActivity extends Activity {
private List<Account> accountList;
private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private ProgressBar progressItem;
private Menu menu;
private int listId;

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Expand Down Expand Up @@ -149,6 +159,7 @@ private class DrawerItemClickListener implements ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
ZUserList zul = (ZUserList) ((ListView)parent).getAdapter().getItem(position);
listId = zul.listId;
selectItem(zul);
}
}
Expand Down Expand Up @@ -176,4 +187,91 @@ private void selectItem(ZUserList zul) {
mDrawerLayout.closeDrawer(mDrawerList);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_menu, menu);
MenuItem item = menu.findItem(R.id.ProgressBar);
progressItem = (ProgressBar) item.getActionView();
progressItem.setVisibility(ProgressBar.INVISIBLE);

this.menu = menu;

return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
Intent i;
// Handle item selection
switch (item.getItemId()) {
case R.id.preferences:
i = new Intent(this, Preferences.class);
startActivity(i);
break;
case R.id.reloadLists:
// syncLists();
// new SyncSLTask(this).execute();
break;
case R.id.DevelResetLastRead:
// resetLastRead();
break;
case R.id.DevelCleanTweets:
// cleanTweetDB();
break;
case R.id.DevelCleanImages:
// cleanImages();
break;
case R.id.AccountStuff:
i = new Intent(this, AccountStuffActivity.class);
startActivity(i);
break;
case R.id.helpMenu:
i = new Intent(MainActivity.this, HelpActivity.class); // TODO Fragment
startActivity(i);
break;
case R.id.menu_cleanTweets:
new CleanupTask(this).execute();
break;
case R.id.DevelDumpAccounts:
TweetDB tmpDb = TweetDB.getInstance(getApplicationContext());
List<Account> allAccounts = tmpDb.getAccountsForSelection(false);
for (Account a : allAccounts)
System.out.println(a);
break;
/// below are Honeycomb ActionBar items
case R.id.refresh:
// forward to the inner list's reload/referesh
// if (listActivity!=null)
// listActivity.reload(null);
Intent fetcher = new Intent(this, FetchTimelinesService.class);
fetcher.putExtra("account",account);
fetcher.putExtra("listIds",new int[] { listId});
startService(fetcher);
break;
case R.id.send:
i = new Intent(this,NewTweetActivity.class);
startActivity(i);
break;
case R.id.to_top:
// if (listActivity!=null)
// listActivity.scrollToTop(null);
break;
case R.id.menu_feedback:
// send_feedback();
break;
case R.id.menu_goto_user:
// displayUserInfo();
break;
case R.id.menu_default_search:
onSearchRequested();
break;
default:
System.out.println("Unknown option " + item.toString());
return super.onOptionsItemSelected(item);
}
return true;
}


}
80 changes: 67 additions & 13 deletions src/de/bsd/zwitscher/TweetListFragment.java
View file
Expand Up @@ -2,17 +2,22 @@


import android.app.ListFragment;
import android.app.LoaderManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.Loader;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import de.bsd.zwitscher.account.Account;
import de.bsd.zwitscher.helper.MetaList;
import twitter4j.Paging;
import de.bsd.zwitscher.helper.StatusListLoader;
import twitter4j.Status;

import java.util.ArrayList;
import java.util.List;

/**
* Show the list of tweets.
Expand All @@ -26,10 +31,14 @@
*
* @author Heiko W. Rupp
*/
public class TweetListFragment extends ListFragment {
public class TweetListFragment extends ListFragment implements LoaderManager.LoaderCallbacks<List<Status>> {

private static final String LOAD_DONE = "zwitscher.LoadDone";
private TweetDB tweetDb;
private String tag;
private int listId;
private Account account;
private UpdateFinishReceiver receiver;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
Expand All @@ -38,28 +47,73 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle sa
return view;
}

void setListId(int listId) {
this.listId = listId;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

tweetDb = TweetDB.getInstance(getActivity());
}

@Override
public void onActivityCreated(Bundle savedState) {

super.onActivityCreated(savedState);
ListView lv ;

IntentFilter filter = new IntentFilter(LOAD_DONE);
receiver = new UpdateFinishReceiver();
getActivity().registerReceiver(receiver,filter);

TwitterHelper th = new TwitterHelper(getActivity(),account);
MetaList<Status> statuses = th.getTimeline(new Paging(), listId, true);

setListAdapter(new StatusAdapter<Status>(getActivity(), account, R.layout.tweet_list_item, statuses.getList(), 0, new ArrayList<Long>()));
// Prepare the loader. Either re-connect with an existing one,
// or start a new one.
Bundle loaderArgs = new Bundle();
loaderArgs.putInt("listId", listId);
getLoaderManager().initLoader(0, loaderArgs, this);
getListView().setOverscrollHeader(getResources().getDrawable(R.drawable.ic_menu_top)); // TODO what icon?
getListView().setOverscrollFooter(getResources().getDrawable(R.drawable.ic_menu_share)); // TODO what icon?

lv = getListView();
lv.setItemsCanFocus(false);
}

@Override
public void onDestroyView() {
super.onDestroyView();

getActivity().unregisterReceiver(receiver);
}

@Override
public Loader<List<Status>> onCreateLoader(int id, Bundle args) {
return new StatusListLoader(getActivity(), account, listId);
}

@Override
public void onLoadFinished(Loader<List<Status>> loader, List<Status> data) {
setListAdapter(new StatusAdapter<Status>(getActivity(), account,R.layout.tweet_list_item,data,-1,new ArrayList<Long>()));
}

@Override
public void onLoaderReset(Loader<List<Status>> loader) {
// TODO: Customise this generated block
}

public void setAccount(Account account) {
this.account = account;
}

void setListId(int listId) {
this.listId = listId;
}


private class UpdateFinishReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
int intentListId = intent.getIntExtra("listId",0);
if (intentListId == listId ) {
Bundle loaderArgs = new Bundle();
loaderArgs.putInt("listId", listId);
getLoaderManager().restartLoader(0, loaderArgs, TweetListFragment.this);
}
}
}
}
96 changes: 96 additions & 0 deletions src/de/bsd/zwitscher/helper/FetchTimelinesService.java
View file
@@ -0,0 +1,96 @@
package de.bsd.zwitscher.helper;

import android.app.IntentService;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import de.bsd.zwitscher.TweetDB;
import de.bsd.zwitscher.TwitterHelper;
import de.bsd.zwitscher.account.Account;
import twitter4j.Paging;
import twitter4j.Status;
import twitter4j.Twitter;
import twitter4j.TwitterException;

import java.util.ArrayList;
import java.util.List;

/**
* Intent service to fetch timeline data from the server and store it in the
* Database
*
* @author Heiko W. Rupp
*/
public class FetchTimelinesService extends IntentService {

public FetchTimelinesService() {
super("FetchTimelinesService");
}

@Override
protected void onHandleIntent(Intent intent) {

Bundle bundle = intent.getExtras();

int[] listIds = bundle.getIntArray("listIds");

if (listIds==null) {
Log.e("Fetcher","No listIds passed, returning");
stopSelf();
return;
}
Account account = bundle.getParcelable("account");
int accountId = account.getId();

TwitterHelper th = new TwitterHelper(getApplicationContext(),account);
Twitter twitter = th.getTwitter();
TweetDB tdb = TweetDB.getInstance(getApplicationContext());


for (int listId : listIds ) {
List<Status> statuses;
long lastFetchedId = tdb.getLastFetched(accountId, listId);
Paging paging ;
if (lastFetchedId>0)
paging=new Paging(lastFetchedId);
else
paging=new Paging(1,200);

try {
switch (listId) {
case 0:
statuses = twitter.getHomeTimeline(paging);
break;
case 1:
statuses = twitter.getMentionsTimeline(paging);
break;
case 2:
Log.w("Fetcher","Direct messages are not supported");
statuses = new ArrayList<Status>(1);
break;
case 3:
statuses = twitter.getUserTimeline(paging);
break;
default:
statuses = twitter.getUserListStatuses(listId,paging);
}
if (statuses.size()>0) {
th.persistStatus(statuses, listId);
long newLast=-1;
// Update the 'since' id in the database
if (statuses.size()>0) {
newLast = statuses.get(0).getId(); // assumption is that twitter sends the newest (=highest id) first
tdb.updateOrInsertLastRead(accountId,listId,newLast);
Intent loadDone = new Intent("zwitscher.LoadDone");
loadDone.putExtra("listId",listId);
sendBroadcast(loadDone);
}
}
} catch (TwitterException e) {
e.printStackTrace(); // TODO: Customise this generated block
}
}

stopSelf();
}
}

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