Java tutorial
/* * Copyright (C) 2012 Kazuya Yokoyama <kazuya.yokoyama@gmail.com>, Kazumine Matoba <matoyan@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package mobisocial.bento.anyshare.ui; import mobisocial.bento.anyshare.R; import mobisocial.bento.anyshare.io.DataManager; import mobisocial.bento.anyshare.io.Postdata; import mobisocial.bento.anyshare.service.ProxyService; import mobisocial.bento.anyshare.util.DBHelper; import mobisocial.bento.anyshare.util.ImageCache; import mobisocial.socialkit.musubi.DbObj; import mobisocial.socialkit.musubi.FeedObserver; import mobisocial.socialkit.musubi.Musubi; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.ActivityNotFoundException; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.view.Menu; import android.support.v4.view.MenuItem; import android.util.Log; import android.webkit.MimeTypeMap; import android.widget.Toast; public class FeedItemListActivity extends FragmentActivity { public static final String EXTRA_SB = "mobisocial.bento.slides.extra.EXTRA_SB"; private static final int REQUEST_PICK = 1; private static final String TAG = "FeedAlbumListActivity"; protected static final int REQUEST_MARKET = 1; private DataManager mManager = DataManager.getInstance(); private Musubi mMusubi; private FeedItemListFragment mFeedItemListFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mMusubi = mManager.getMusubi(); setContentView(R.layout.activity_feeditemlist); FragmentManager fm = getSupportFragmentManager(); mFeedItemListFragment = (FeedItemListFragment) fm.findFragmentById(R.id.fragment_itemlist); mMusubi.getFeed().registerStateObserver(mStateObserver); } @Override protected void onDestroy() { ImageCache.clearCache(); if (mMusubi != null) { mMusubi.getFeed().removeStateObserver(mStateObserver); } super.onDestroy(); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // getActivityHelper().setupHomeActivity(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent ret) { if (requestCode == REQUEST_PICK) { if (resultCode == RESULT_OK) { Log.d(TAG, ret.toString()); Uri uri = ret.getData(); Intent intent = new Intent(this, PostActivity.class); intent.setAction(Intent.ACTION_SEND); String mimetype = getContentResolver().getType(uri); String ext = MimeTypeMap.getFileExtensionFromUrl(uri.toString()); MimeTypeMap mime = MimeTypeMap.getSingleton(); if (mimetype == null || mimetype.isEmpty()) { if (!ext.isEmpty()) { mimetype = mime.getMimeTypeFromExtension(ext); } } String fname = uri.getLastPathSegment(); if (ext.isEmpty()) { fname += "." + mime.getExtensionFromMimeType(mimetype); } intent.setType(mimetype); intent.putExtra(Intent.EXTRA_SUBJECT, fname); intent.putExtra(Intent.EXTRA_TEXT, ""); intent.putExtra(Intent.EXTRA_STREAM, uri); startActivityForResult(intent, HomeActivity.REQUEST_VIEW); } } super.onActivityResult(requestCode, resultCode, ret); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_items_feeditemlist, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: return true; case R.id.menu_add: prepareSelection(); return true; case R.id.menu_refresh: askRefresh(); return true; default: return super.onOptionsItemSelected(item); } } // ---------------------------------------------------------- // Musubi // ---------------------------------------------------------- private final FeedObserver mStateObserver = new FeedObserver() { @Override public void onUpdate(DbObj obj) { mManager.insertItemDbFromFeed(obj, FeedItemListActivity.this); mManager.readItemsForlist(FeedItemListActivity.this); mFeedItemListFragment.refleshView(); } }; private boolean isFileManagerInstalled() { PackageManager pm = this.getPackageManager(); String[] packages = { "com.rhmsoft.fm", "com.metago.astro", "com.estrongs.android.pop", "com.agilesoftresource", "com.agilesoftresource", "com.smartwho.SmartFileManager" }; for (int i = 0; i < packages.length; i++) { try { pm.getApplicationInfo(packages[i], 0); return true; } catch (NameNotFoundException e) { // check next } } return false; } private void prepareSelection() { if (isFileManagerInstalled()) { goSelection(); } else { askDownloadFM(); } } private void goSelection() { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("*/*"); intent.addCategory(Intent.CATEGORY_OPENABLE); startActivityForResult(intent, REQUEST_PICK); } private void askDownloadFM() { new AlertDialog.Builder(this).setTitle(R.string.dlfm_dialog_title).setMessage(R.string.dlfm_dialog_text) .setIcon(android.R.drawable.ic_dialog_info).setCancelable(true) .setPositiveButton(getResources().getString(R.string.dlfm_dialog_yes), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { goMarket("com.rhmsoft.fm"); } }) .setNegativeButton(getResources().getString(R.string.refresh_dialog_no), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { goSelection(); } }) .create().show(); } private void askRefresh() { new AlertDialog.Builder(this).setTitle(R.string.refresh_dialog_title) .setMessage(R.string.refresh_dialog_text).setIcon(android.R.drawable.ic_dialog_info) .setCancelable(true).setPositiveButton(getResources().getString(R.string.refresh_dialog_yes), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { new RefreshAsyncTask(FeedItemListActivity.this).execute(); } }) .setNegativeButton(getResources().getString(R.string.refresh_dialog_no), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { return; } }) .create().show(); } private class RefreshAsyncTask extends AsyncTask<Void, Void, Boolean> { private DataManager mManager = DataManager.getInstance(); private Context mContext; private ProgressDialog mProgressDialog = null; public RefreshAsyncTask(Context context) { mContext = context; } @Override protected void onPreExecute() { // show progress dialog mProgressDialog = new ProgressDialog(mContext); mProgressDialog.setMessage(mContext.getString(R.string.home_loading)); mProgressDialog.setIndeterminate(true); mProgressDialog.setCancelable(false); mProgressDialog.show(); } @Override protected Boolean doInBackground(Void... params) { DBHelper dbh = new DBHelper(mContext); dbh.truncateAll(); dbh.close(); mManager.updateItemDbFromFeed(mContext); mManager.readItemsForlist(mContext); runOnUiThread(new Runnable() { public void run() { mFeedItemListFragment.refleshView(); } }); return true; } @Override protected void onPostExecute(Boolean result) { try { if (mProgressDialog != null && mProgressDialog.isShowing()) { mProgressDialog.dismiss(); mProgressDialog = null; } } catch (Exception e) { e.printStackTrace(); } } } private void goMarket(final String app_id) { try { Uri uri = Uri.parse("market://details?id=" + app_id); Intent intent = new Intent(Intent.ACTION_VIEW, uri); startActivityForResult(intent, REQUEST_MARKET); } catch (ActivityNotFoundException anfe) { Log.e(TAG, "Application Not Found."); } } }