package com.lgq.rssreader; import java.io.File; import java.util.ArrayList; import java.util.List; import java.util.prefs.Preferences; import org.json.JSONArray; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.DialogInterface.OnMultiChoiceClickListener; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v4.app.Fragment; import android.support.v4.app.ListFragment; import android.util.Log; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.ViewGroup; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.Adapter; import android.widget.AdapterView; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.HeaderViewListAdapter; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import com.actionbarsherlock.app.SherlockFragment; import com.actionbarsherlock.view.MenuInflater; import com.actionbarsherlock.view.MenuItem; import com.google.gson.Gson; import com.lgq.rssreader.R.id; import com.lgq.rssreader.adapter.BlogAdapter; import com.lgq.rssreader.adapter.ChannelAdapter; import com.lgq.rssreader.adapter.ImageAdapter; import com.lgq.rssreader.controls.PullToRefreshListView; import com.lgq.rssreader.controls.XListView; import com.lgq.rssreader.controls.XListView.IXListViewListener; import com.lgq.rssreader.core.ReaderApp; import com.lgq.rssreader.dal.BlogDalHelper; import com.lgq.rssreader.dal.ImageRecordDalHelper; import com.lgq.rssreader.parser.FeedlyParser; import com.lgq.rssreader.parser.HttpResponseHandler; import com.lgq.rssreader.task.ImageTask; import com.lgq.rssreader.utils.Helper; import com.lgq.rssreader.entity.*; import com.lgq.rssreader.enums.RssAction; import com.lgq.rssreader.enums.RssTab; /** * A list fragment representing a list of Blogs. This fragment * also supports tablet devices by allowing list items to be given an * 'activated' state upon selection. This helps indicate which item is * currently being viewed in a {@link BlogContentFragment}. * <p> * Activities containing this fragment MUST implement the {@link Callbacks} * interface. */ public class ImageListFragment extends SherlockFragment { /** * The serialization (saved instance state) Bundle key representing the * activated item position. Only used on tablets. */ private static final String STATE_ACTIVATED_POSITION = "activated_position"; /** * The fragment's data source of gallery tab */ private List<ImageRecord> records; /** * The current activated item position. Only used on tablets. */ private int mActivatedPosition = ListView.INVALID_POSITION; /** * The current adapter for list. */ private ListAdapter adapter; private int page; private XListView listView; private ImageView currentImage; private ImageRecordDalHelper helper; public XListView getListView(){return listView;} public Handler myHandler = new Handler(){ @Override public void handleMessage(Message msg) { if(getView() != null){ records = (List<ImageRecord>)msg.obj; adapter = new ImageAdapter( getActivity(), records, listView ); listView.setAdapter(adapter); if(records.size() > 0){ ImageRecord obj = records.get(0); File SDFile = android.os.Environment.getExternalStorageDirectory(); Bitmap bm = BitmapFactory.decodeFile(SDFile.getAbsolutePath() + obj.StoredName); currentImage.setImageBitmap(bm); } } super.handleMessage(msg); } }; /** * Mandatory empty constructor for the fragment manager to instantiate the * fragment (e.g. upon screen orientation changes). */ public ImageListFragment() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); helper = new ImageRecordDalHelper(); // Restore the previously serialized activated item position. if (savedInstanceState != null && savedInstanceState.containsKey(STATE_ACTIVATED_POSITION)) { setActivatedPosition(savedInstanceState.getInt(STATE_ACTIVATED_POSITION)); } } @Override public void onStart(){ super.onStart(); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_gallery, container, false); View emptyView = inflater.inflate(R.layout.listview_empty, container, false); listView = (XListView)rootView.findViewById(id.image_list); currentImage = (ImageView)rootView.findViewById(id.currentimage); listView.setEmptyView(emptyView); listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> view, View v, int position, long id) { ImageRecord obj = (ImageRecord)adapter.getItem(position - 1); File SDFile = android.os.Environment.getExternalStorageDirectory(); Bitmap bm = BitmapFactory.decodeFile(SDFile.getAbsolutePath() + obj.StoredName); currentImage.setImageBitmap(bm); } }); page = 1; listView.setXListViewListener(new IXListViewListener(){ @Override public void onRefresh() { if(page > 1){ page--; new Thread(new Runnable() { @Override public void run() { Message m = myHandler.obtainMessage(); //m.what = tab.ordinal(); m.obj = helper.GetImageRecordListByPage(page, 10);; myHandler.sendMessage(m); } }).start(); } } @Override public void onLoadMore() { final int temp = page + 1; new Thread(new Runnable() { @Override public void run() { List<ImageRecord> records = helper.GetImageRecordListByPage(temp, 10); if(records.size() > 0){ Message m = myHandler.obtainMessage(); //m.what = tab.ordinal(); page = temp; m.obj = records; myHandler.sendMessage(m); } } }).start(); } }); loadData(); listView.setPullLoadEnable(true); listView.setPullRefreshEnable(true); return rootView; } public void loadData(){ new Thread(new Runnable() { @Override public void run() { Message m = myHandler.obtainMessage(); m.what = page; m.obj = helper.GetTopImageList(); myHandler.sendMessage(m); } }).start(); } @Override public void onDetach() { super.onDetach(); helper.Close(); } @Override public boolean onContextItemSelected(android.view.MenuItem item) { if (bMenu) { bMenu=false; } return super.onContextItemSelected(item); } boolean bMenu=true; //�������IJ˵��ر�ʱ���õķ��� @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { android.view.MenuInflater inflater = this.getActivity().getMenuInflater(); inflater.inflate(R.menu.contextmenu, (Menu) menu); super.onCreateContextMenu(menu, v, menuInfo); bMenu=true; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); if (mActivatedPosition != ListView.INVALID_POSITION) { // Serialize and persist the activated item position. outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition); } } /** * Turns on activate-on-click mode. When this mode is on, list items will be * given the 'activated' state when touched. */ public void setActivateOnItemClick(boolean activateOnItemClick) { // When setting CHOICE_MODE_SINGLE, ListView will automatically // give items the 'activated' state when touched. listView.setChoiceMode(activateOnItemClick ? ListView.CHOICE_MODE_SINGLE : ListView.CHOICE_MODE_NONE); } private void setActivatedPosition(int position) { if (position == ListView.INVALID_POSITION) { listView.setItemChecked(mActivatedPosition, false); } else { listView.setItemChecked(position, true); } mActivatedPosition = position; } }