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feeds fragment: use loader

This commit is contained in:
Andrew Dolgov 2017-05-31 15:44:12 +03:00
parent d0b4e80a64
commit 4d54d69378
3 changed files with 145 additions and 341 deletions
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2
org.fox.ttrss/src/main/java/org/fox/ttrss/FeedCategoriesFragment.java
View File

@ -375,8 +375,6 @@ public class FeedCategoriesFragment extends BaseFeedlistFragment implements OnIt
@Override
public void onResume() {
super.onResume();
//refresh(false);
getLoaderManager().initLoader(0, null, this).forceLoad();

465
org.fox.ttrss/src/main/java/org/fox/ttrss/FeedsFragment.java
View File

@ -11,6 +11,8 @@ import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.graphics.Typeface;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.Log;
import android.util.TypedValue;
@ -45,7 +47,8 @@ import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickListener, OnSharedPreferenceChangeListener {
public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickListener, OnSharedPreferenceChangeListener,
LoaderManager.LoaderCallbacks<JsonElement> {
private final String TAG = this.getClass().getSimpleName();
private SharedPreferences m_prefs;
private FeedListAdapter m_adapter;
@ -53,8 +56,6 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
private MasterActivity m_activity;
private Feed m_selectedFeed;
private FeedCategory m_activeCategory;
private static final String ICON_PATH = "/icons/";
//private boolean m_enableFeedIcons;
private boolean m_feedIconsChecked = false;
private SwipeRefreshLayout m_swipeLayout;
private boolean m_enableParentBtn = false;
@ -64,7 +65,114 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
m_activeCategory = cat;
m_enableParentBtn = enableParentBtn;
}
@Override
public Loader<JsonElement> onCreateLoader(int id, Bundle args) {
if (m_swipeLayout != null) m_swipeLayout.setRefreshing(true);
final int catId = (m_activeCategory != null) ? m_activeCategory.id : -4;
final String sessionId = m_activity.getSessionId();
final boolean unreadOnly = m_activity.getUnreadOnly() && (m_activeCategory == null || m_activeCategory.id != -1);
HashMap<String,String> params = new HashMap<String,String>() {
{
put("op", "getFeeds");
put("sid", sessionId);
put("include_nested", "true");
put("cat_id", String.valueOf(catId));
if (unreadOnly) {
put("unread_only", String.valueOf(unreadOnly));
}
}
};
return new FeedsLoader(getActivity().getApplicationContext(), params, catId);
}
@Override
public void onLoadFinished(Loader<JsonElement> loader, JsonElement result) {
if (m_swipeLayout != null) m_swipeLayout.setRefreshing(false);
View loadingBar = getView().findViewById(R.id.feeds_loading_bar);
if (loadingBar != null) {
loadingBar.setVisibility(View.INVISIBLE);
}
if (result != null) {
try {
JsonArray content = result.getAsJsonArray();
if (content != null) {
Type listType = new TypeToken<List<Feed>>() {}.getType();
final List<Feed> feeds = new Gson().fromJson(content, listType);
m_feeds.clear();
int catUnread = 0;
int catId = ((FeedsLoader) loader).getCatId();
for (Feed f : feeds)
if (f.id > -10 || catId != -4) { // skip labels for flat feedlist for now
if (m_activeCategory != null || f.id >= 0) {
m_feeds.add(f);
catUnread += f.unread;
}
}
sortFeeds();
if (m_activeCategory == null) {
Feed feed = new Feed(-1, "Special", true);
feed.unread = catUnread;
m_feeds.add(0, feed);
m_adapter.notifyDataSetChanged();
}
if (m_enableParentBtn && m_activeCategory != null && m_activeCategory.id >= 0 && m_feeds.size() > 0) {
Feed feed = new Feed(m_activeCategory.id, m_activeCategory.title, true);
feed.unread = catUnread;
feed.always_display_as_feed = true;
feed.display_title = getString(R.string.feed_all_articles);
m_feeds.add(0, feed);
m_adapter.notifyDataSetChanged();
}
return;
}
} catch (Exception e) {
e.printStackTrace();
}
}
ApiLoader al = (ApiLoader) loader;
if (al.getLastError() == ApiCommon.ApiError.LOGIN_FAILED) {
m_activity.login(true);
} else {
if (al.getLastErrorMessage() != null) {
m_activity.toast(getString(al.getErrorMessage()) + "\n" + al.getLastErrorMessage());
} else {
m_activity.toast(al.getErrorMessage());
}
//m_activity.setLoadingStatus(getErrorMessage(), false);
}
}
@Override
public void onLoaderReset(Loader<JsonElement> loader) {
m_feeds.clear();
m_adapter.notifyDataSetChanged();
}
@SuppressLint("DefaultLocale")
class FeedUnreadComparator implements Comparator<Feed> {
@ -227,7 +335,6 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
//ListView list = (ListView) getView().findViewById(R.id.feeds);
Feed feed = (Feed) m_list.getItemAtPosition(info.position);
menu.setHeaderTitle(feed.display_title != null ? feed.display_title : feed.title);
@ -266,21 +373,6 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
}
});
/* Button parentBtn = (Button) view.findViewById(R.id.open_parent);
if (parentBtn != null) {
if (m_enableParentBtn) {
parentBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
m_activity.getSupportFragmentManager().popBackStack();
}
});
} else {
parentBtn.setVisibility(View.GONE);
}
} */
m_list = (ListView)view.findViewById(R.id.feeds);
initDrawerHeader(inflater, view, m_list, m_activity, m_prefs, !m_enableParentBtn);
@ -298,23 +390,18 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
m_list.addHeaderView(layout, null, false);
}
m_adapter = new FeedListAdapter(getActivity(), R.layout.feeds_row, (ArrayList<Feed>)m_feeds);
m_adapter = new FeedListAdapter(getActivity(), R.layout.feeds_row, m_feeds);
m_list.setAdapter(m_adapter);
m_list.setOnItemClickListener(this);
registerForContextMenu(m_list);
//m_enableFeedIcons = m_prefs.getBoolean("download_feed_icons", false);
View loadingBar = (View) view.findViewById(R.id.feeds_loading_bar);
View loadingBar = view.findViewById(R.id.feeds_loading_bar);
if (loadingBar != null) {
loadingBar.setVisibility(View.VISIBLE);
}
//Log.d(TAG, "mpTRA=" + m_activity.m_pullToRefreshAttacher);
//m_activity.m_pullToRefreshAttacher.addRefreshableView(list, this);
return view;
}
@ -337,8 +424,8 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
@Override
public void onResume() {
super.onResume();
refresh(false);
getLoaderManager().initLoader(0, null, this).forceLoad();
m_activity.invalidateOptionsMenu();
}
@ -386,202 +473,9 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
public void refresh(boolean background) {
if (!isAdded()) return;
//FeedCategory cat = m_onlineServices.getActiveCategory();
if (m_swipeLayout != null) m_swipeLayout.setRefreshing(true);
if (m_swipeLayout != null) m_swipeLayout.setRefreshing(true);
final int catId = (m_activeCategory != null) ? m_activeCategory.id : -4;
final String sessionId = m_activity.getSessionId();
final boolean unreadOnly = m_activity.getUnreadOnly() && (m_activeCategory == null || m_activeCategory.id != -1);
FeedsRequest req = new FeedsRequest(getActivity().getApplicationContext(), catId);
if (sessionId != null) {
//m_activity.setLoadingStatus(R.string.blank, true);
//m_activity.setProgressBarVisibility(true);
HashMap<String,String> map = new HashMap<String,String>() {
{
put("op", "getFeeds");
put("sid", sessionId);
put("include_nested", "true");
put("cat_id", String.valueOf(catId));
if (unreadOnly) {
put("unread_only", String.valueOf(unreadOnly));
}
}
};
req.execute(map);
}
}
/* private void setLoadingStatus(int status, boolean showProgress) {
if (getView() != null) {
TextView tv = (TextView)getView().findViewById(R.id.loading_message);
if (tv != null) {
tv.setText(status);
}
}
if (getActivity() != null)
getActivity().setProgressBarIndeterminateVisibility(showProgress);
} */
@SuppressWarnings({ "serial" })
/* public void getFeedIcons() {
ApiRequest req = new ApiRequest(getActivity().getApplicationContext()) {
protected void onPostExecute(JsonElement result) {
if (isDetached()) return;
if (result != null) {
try {
JsonElement iconsUrl = result.getAsJsonObject().get("icons_url");
if (iconsUrl != null) {
String iconsStr = iconsUrl.getAsString();
String baseUrl = "";
if (!iconsStr.contains("://")) {
baseUrl = m_prefs.getString("ttrss_url", "").trim() + "/" + iconsStr;
} else {
baseUrl = iconsStr;
}
GetIconsTask git = new GetIconsTask(baseUrl);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
git.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, m_feeds);
else
git.execute(m_feeds);
m_feedIconsChecked = true;
}
} catch (Exception e) {
Log.d(TAG, "Error receiving icons configuration");
e.printStackTrace();
}
}
}
};
final String sessionId = m_activity.getSessionId();
HashMap<String,String> map = new HashMap<String,String>() {
{
put("sid", sessionId);
put("op", "getConfig");
}
};
req.execute(map);
} */
private class FeedsRequest extends ApiRequest {
private int m_catId;
public FeedsRequest(Context context, int catId) {
super(context);
m_catId = catId;
}
@Override
protected void onProgressUpdate(Integer... progress) {
m_activity.setProgress(Math.round((((float)progress[0] / (float)progress[1]) * 10000)));
}
@Override
protected void onPostExecute(JsonElement result) {
if (isDetached() || !isAdded()) return;
if (getView() != null) {
View loadingBar = getView().findViewById(R.id.feeds_loading_bar);
if (loadingBar != null) {
loadingBar.setVisibility(View.INVISIBLE);
}
}
if (m_swipeLayout != null) m_swipeLayout.setRefreshing(false);
if (result != null) {
try {
JsonArray content = result.getAsJsonArray();
if (content != null) {
Type listType = new TypeToken<List<Feed>>() {}.getType();
final List<Feed> feeds = new Gson().fromJson(content, listType);
m_feeds.clear();
int catUnread = 0;
for (Feed f : feeds)
if (f.id > -10 || m_catId != -4) { // skip labels for flat feedlist for now
if (m_activeCategory != null || f.id >= 0) {
m_feeds.add(f);
catUnread += f.unread;
}
}
sortFeeds();
if (m_activeCategory == null) {
Feed feed = new Feed(-1, "Special", true);
feed.unread = catUnread;
m_feeds.add(0, feed);
m_adapter.notifyDataSetChanged();
}
if (m_enableParentBtn && m_activeCategory != null && m_activeCategory.id >= 0 && m_feeds.size() > 0) {
Feed feed = new Feed(m_activeCategory.id, m_activeCategory.title, true);
feed.unread = catUnread;
feed.always_display_as_feed = true;
feed.display_title = getString(R.string.feed_all_articles);
m_feeds.add(0, feed);
m_adapter.notifyDataSetChanged();
}
/*if (m_feeds.size() == 0)
setLoadingStatus(R.string.no_feeds_to_display, false);
else */
//m_activity.setLoadingStatus(R.string.blank, false);
//m_adapter.notifyDataSetChanged(); (done by sortFeeds)
/* if (m_enableFeedIcons && !m_feedIconsChecked && Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()))
getFeedIcons(); */
return;
}
} catch (Exception e) {
e.printStackTrace();
}
}
if (m_lastError == ApiCommon.ApiError.LOGIN_FAILED) {
m_activity.login(true);
} else {
if (m_lastErrorMessage != null) {
m_activity.toast(getString(getErrorMessage()) + "\n" + m_lastErrorMessage);
} else {
m_activity.toast(getErrorMessage());
}
//m_activity.setLoadingStatus(getErrorMessage(), false);
}
}
getLoaderManager().restartLoader(0, null, this).forceLoad();
}
private class FeedListAdapter extends ArrayAdapter<Feed> {
@ -614,8 +508,8 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
if (!m_activity.isSmallScreen() && m_selectedFeed != null && feed.id == m_selectedFeed.id) {
return VIEW_SELECTED;
} else {
return VIEW_NORMAL;
}
return VIEW_NORMAL;
}
}
@Override
@ -626,13 +520,13 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
if (v == null) {
int layoutId = R.layout.feeds_row;
switch (getItemViewType(position)) {
case VIEW_SELECTED:
layoutId = R.layout.feeds_row_selected;
break;
}
LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(layoutId, null);
@ -687,16 +581,16 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
tu.setText(String.valueOf(feed.unread));
tu.setVisibility((feed.unread > 0) ? View.VISIBLE : View.INVISIBLE);
}
/*ImageButton ib = (ImageButton) v.findViewById(R.id.feed_menu_button);
if (ib != null) {
ib.setOnClickListener(new OnClickListener() {
ib.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
getActivity().openContextMenu(v);
}
});
});
}*/
return v;
@ -729,95 +623,6 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
// adapter missing
}
}
/* public class GetIconsTask extends AsyncTask<FeedList, Integer, Integer> {
private String m_baseUrl;
public GetIconsTask(String baseUrl) {
m_baseUrl = baseUrl.trim();
}
@Override
protected Integer doInBackground(FeedList... params) {
FeedList localList = new FeedList();
try {
localList.addAll(params[0]);
File storage = m_activity.getExternalCacheDir();
final File iconPath = new File(storage.getAbsolutePath() + ICON_PATH);
if (!iconPath.exists()) iconPath.mkdirs();
if (iconPath.exists()) {
for (Feed feed : localList) {
if (feed.id > 0 && feed.has_icon && !feed.is_cat) {
File outputFile = new File(iconPath.getAbsolutePath() + "/" + feed.id + ".ico");
String fetchUrl = m_baseUrl + "/" + feed.id + ".ico";
if (!outputFile.exists()) {
downloadFile(fetchUrl, outputFile.getAbsolutePath());
Thread.sleep(2000);
}
}
}
}
} catch (Exception e) {
Log.d(TAG, "Error while downloading feed icons");
e.printStackTrace();
}
return null;
}
protected void downloadFile(String fetchUrl, String outputFile) {
AndroidHttpClient client = AndroidHttpClient.newInstance("Tiny Tiny RSS");
try {
URL url = new URL(fetchUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(1000);
conn.setReadTimeout(5000);
Log.d(TAG, "[downloadFile] " + url);
String httpLogin = m_prefs.getString("http_login", "");
String httpPassword = m_prefs.getString("http_password", "");
if (httpLogin.length() > 0) {
conn.setRequestProperty("Authorization", "Basic " +
Base64.encodeToString((httpLogin + ":" + httpPassword).getBytes("UTF-8"), Base64.NO_WRAP));
}
InputStream content = conn.getInputStream();
BufferedInputStream is = new BufferedInputStream(content, 1024);
FileOutputStream fos = new FileOutputStream(outputFile);
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
fos.write(buffer, 0, len);
}
fos.close();
is.close();
} catch (Exception e) {
e.printStackTrace();
}
client.close();
}
protected void onPostExecute(Integer result) {
if (isDetached()) return;
m_adapter.notifyDataSetChanged();
}
} */
@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
@ -837,22 +642,4 @@ public class FeedsFragment extends BaseFeedlistFragment implements OnItemClickLi
return null;
}
}
/* public Feed getSelectedFeed() {
return m_selectedFeed;
}
public void setSelectedFeed(Feed feed) {
m_selectedFeed = feed;
if (m_adapter != null) {
m_adapter.notifyDataSetChanged();
}
} */
/* @Override
public void onRefreshStarted(View view) {
refresh(false);
} */
}

19
org.fox.ttrss/src/main/java/org/fox/ttrss/FeedsLoader.java Normal file
View File

@ -0,0 +1,19 @@
package org.fox.ttrss;
import android.content.Context;
import java.util.HashMap;
class FeedsLoader extends ApiLoader {
private int m_catId;
public FeedsLoader(Context context, HashMap<String, String> params, int catId) {
super(context, params);
m_catId = catId;
}
public int getCatId() {
return m_catId;
}
}