tt-rss-android/src/org/fox/ttrss/MainActivity.java

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package org.fox.ttrss;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
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import android.app.Activity;
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import android.app.FragmentTransaction;
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import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteStatement;
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import android.os.Bundle;
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import android.preference.PreferenceManager;
import android.provider.BaseColumns;
import android.util.Log;
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import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
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import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.reflect.TypeToken;
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public class MainActivity extends Activity {
private final String TAG = this.getClass().getSimpleName();
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private SharedPreferences m_prefs;
private String m_themeName = "";
private boolean m_feedsOpened = false;
protected String m_sessionId;
protected int m_offset = 0;
protected int m_limit = 100;
protected String getSessionId() {
return m_sessionId;
}
protected synchronized void setSessionId(String sessionId) {
m_sessionId = sessionId;
SharedPreferences.Editor editor = m_prefs.edit();
editor.putString("last_session_id", m_sessionId);
editor.commit();
}
private Timer m_timer;
private TimerTask m_updateTask = new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
downloadArticles();
}
});
}
};
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/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
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// allow database to upgrade before we do anything else
DatabaseHelper dh = new DatabaseHelper(getApplicationContext());
SQLiteDatabase db = dh.getWritableDatabase();
db.execSQL("DELETE FROM feeds;");
db.execSQL("DELETE FROM articles;");
db.close();
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m_prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
setTheme(R.style.DarkTheme);
} else {
setTheme(R.style.LightTheme);
}
m_themeName = m_prefs.getString("theme", "THEME_DARK");
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m_sessionId = m_prefs.getString("last_session_id", null);
if (savedInstanceState != null) {
m_feedsOpened = savedInstanceState.getBoolean("feedsOpened");
m_sessionId = savedInstanceState.getString("sessionId");
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}
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setContentView(R.layout.main);
if (!m_feedsOpened) {
Log.d(TAG, "Opening feeds fragment...");
FragmentTransaction ft = getFragmentManager().beginTransaction();
FeedsFragment frag = new FeedsFragment();
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ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
ft.replace(R.id.feeds_container, frag);
ft.commit();
m_feedsOpened = true;
}
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m_timer = new Timer("UpdateArticles");
m_timer.schedule(m_updateTask, 1000L, 5*1000L);
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}
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@Override
public void onSaveInstanceState (Bundle out) {
super.onSaveInstanceState(out);
out.putBoolean("feedsOpened", m_feedsOpened);
out.putString("sessionId", m_sessionId);
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}
@Override
public void onResume() {
super.onResume();
if (!m_prefs.getString("theme", "THEME_DARK").equals(m_themeName)) {
Intent refresh = new Intent(this, MainActivity.class);
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startActivity(refresh);
finish();
}
}
@Override
public void onDestroy() {
super.onDestroy();
m_timer.cancel();
m_timer = null;
}
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@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_menu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.preferences:
Intent intent = new Intent(this, PreferencesActivity.class);
startActivityForResult(intent, 0);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void downloadArticles() {
ApiRequest task = new ApiRequest(m_sessionId,
m_prefs.getString("ttrss_url", null),
m_prefs.getString("login", null),
m_prefs.getString("password", null)) {
@Override
protected void onPostExecute(JsonElement result) {
if (result != null && getAuthStatus() == STATUS_OK) {
try {
setSessionId(getSessionId());
JsonArray feeds_object = (JsonArray) result.getAsJsonArray();
Type listType = new TypeToken<List<Article>>() {}.getType();
List<Article> articles = m_gson.fromJson(feeds_object, listType);
DatabaseHelper dh = new DatabaseHelper(getApplicationContext());
SQLiteDatabase db = dh.getWritableDatabase();
/* db.execSQL("DELETE FROM articles"); */
SQLiteStatement stmtInsert = db.compileStatement("INSERT INTO articles " +
"("+BaseColumns._ID+", unread, marked, published, updated, is_updated, title, link, feed_id, tags, content) " +
"VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);");
SQLiteStatement stmtUpdate = db.compileStatement("UPDATE articles SET " +
"unread = ?, marked = ?, published = ?, updated = ?, is_updated = ?, title = ?, link = ?, feed_id = ?, " +
"tags = ?, content = ? WHERE " + BaseColumns._ID + " = ?");
int articlesFound = 0;
for (Article article : articles) {
//Log.d(TAG, "Processing article #" + article.id);
++articlesFound;
Cursor c = db.query("articles", new String[] { BaseColumns._ID } , BaseColumns._ID + "=?",
new String[] { String.valueOf(article.id) }, null, null, null);
if (c.getCount() != 0) {
//Log.d(TAG, "article found");
} else {
//Log.d(TAG, "article not found");
stmtInsert.bindLong(1, article.id);
stmtInsert.bindLong(2, article.unread ? 1 : 0);
stmtInsert.bindLong(3, article.marked ? 1 : 0);
stmtInsert.bindLong(4, article.published ? 1 : 0);
stmtInsert.bindLong(5, article.updated);
stmtInsert.bindLong(6, article.is_updated ? 1 : 0);
stmtInsert.bindString(7, article.title);
stmtInsert.bindString(8, article.link);
stmtInsert.bindLong(9, article.feed_id);
stmtInsert.bindString(9, ""); // comma-separated tags
stmtInsert.bindString(10, article.content);
stmtInsert.execute();
}
c.close();
}
db.close();
Log.d(TAG, articlesFound + " articles processed");
if (articlesFound == m_limit && m_offset <= 300) {
m_offset += m_limit;
} else {
m_offset = 0;
m_timer.cancel();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
};
Log.d(TAG, "Requesting articles [offset=" + m_offset + "]");
task.execute(new HashMap<String,String>() {
{
put("sid", m_sessionId);
put("op", "getHeadlines");
put("feed_id", "-4");
put("show_content", "1");
put("limit", String.valueOf(m_limit));
put("offset", String.valueOf(m_offset));
put("view_mode", "unread");
}
});
}
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}