package com.mzeat.ui;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.LinkedList;
import com.mzeat.MzeatApplication;
import com.mzeat.R;
import com.mzeat.UIHelper;
import com.mzeat.api.MzeatService;
import com.mzeat.db.ShareItemDb;
import com.mzeat.model.Page;
import com.mzeat.model.Share;
import com.mzeat.model.ShareItem;
import com.mzeat.task.GenericTask;
import com.mzeat.task.TaskAdapter;
import com.mzeat.task.TaskParams;
import com.mzeat.task.TaskResult;
import com.mzeat.ui.adapter.ShareListAdapter;
import com.mzeat.ui.widget.CustomListView;
import com.mzeat.ui.widget.CustomListView.OnUpdateListListener;
import com.mzeat.ui.widget.PullToRefreshListView;
import com.mzeat.util.CheckNetworkConnection;
import com.mzeat.util.ConnectionChangeReceiver;
import com.mzeat.util.ShowToast;
import com.mzeat.util.StringUtils;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
public class ShareActivity extends BaseActivity {
//private Handler handler;
private NetworkChange networkChange;
//private ShareListAdapter mAdapter;
private LoadDataTask mLoadDataTask;
private int load_result = 0;
public int load_fromnetwork_success = 1;
public int load_fromdb_success = 2;
private boolean save_local = false;
public final static String SER_KEY = "privilege";
private TextView tv_title;
//private CustomListView mListView;
float density;
public static final int STATE_REFLASH = 1;
public static final int STATE_LOADMORE = 2;
public int STATE = 0;
private ShareItemDb mDb;
private ImageButton btn_pubshare;
private ShareListAdapter lvNewsAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_share);
//handler = new Handler();
initView();
setViewData();
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
density = dm.density;
MzeatApplication.getInstance().getpPreferencesConfig()
.setFloat("density", density);
}
private void initView() {
tv_title = (TextView) findViewById(R.id.tv_title);
findViewById(R.id.btn_back).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
finish();
}
});
initNewsListView();
//mListView = (CustomListView) findViewById(R.id.list_share);
//mAdapter = new ShareListAdapter(this);
//mListView.setAdapter(mAdapter, handler);
//mListView.setonRefreshListener(new MyOnRefreshListener());
//mListView.setOnItemClickListener(mItemClickListener);
btn_pubshare = (ImageButton) findViewById(R.id.btn_pubshare);
btn_pubshare.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent;
if (MzeatApplication.getInstance().getpPreferencesConfig()
.getInt("loginstate", 0) == 1) {
intent = new Intent(ShareActivity.this,
PubShareActivity.class);
startActivityForResult(intent, 1);
} else {
intent = new Intent(ShareActivity.this, LoginActivity.class);
MzeatApplication.getInstance().getpPreferencesConfig()
.setInt("fromsharelist", 1);
ShowToast.showMessage(ShareActivity.this, "请您先登录再发分享。");
startActivity(intent);
}
}
});
}
private void setViewData() {
tv_title.setText(R.string.microshare);
}
private PullToRefreshListView lvNews;
private View lvNews_footer;
private TextView lvNews_foot_more;
private ProgressBar lvNews_foot_progress;
/**
* 初始化新闻列表
*/
private void initNewsListView()
{
lvNewsAdapter = new ShareListAdapter(this);
lvNews_footer = getLayoutInflater().inflate(R.layout.listview_footer, null);
lvNews_foot_more = (TextView)lvNews_footer.findViewById(R.id.listview_foot_more);
lvNews_foot_more.setText(R.string.load_more);
lvNews_foot_progress = (ProgressBar)lvNews_footer.findViewById(R.id.listview_foot_progress);
lvNews_foot_progress.setVisibility(View.GONE);
lvNews = (PullToRefreshListView)findViewById(R.id.frame_listview_news);
lvNews.addFooterView(lvNews_footer);//添加底部视图 必须在setAdapter前
lvNews.setAdapter(lvNewsAdapter);
lvNews.setOnItemClickListener(mItemClickListener);
lvNews.setTag(UIHelper.LISTVIEW_DATA_MORE);
lvNews.setOnScrollListener(new AbsListView.OnScrollListener() {
public void onScrollStateChanged(AbsListView view, int scrollState) {
lvNews.onScrollStateChanged(view, scrollState);
//数据为空--不用继续下面代码了
Log.e("mShareItem.isEmpty()", String.valueOf(mShareItem.size()));
if(mShareItem.isEmpty()) return;
//判断是否滚动到底部
boolean scrollEnd = false;
try {
if(view.getPositionForView(lvNews_footer) == view.getLastVisiblePosition())
scrollEnd = true;
} catch (Exception e) {
scrollEnd = false;
}
int lvDataState = StringUtils.toInt(lvNews.getTag());
if(scrollEnd && lvDataState==UIHelper.LISTVIEW_DATA_MORE)
{
lvNews.setTag(UIHelper.LISTVIEW_DATA_LOADING);
lvNews_foot_more.setText(R.string.load_ing);
lvNews_foot_progress.setVisibility(View.VISIBLE);
//当前pageIndex
STATE = STATE_LOADMORE;
//mListView.setClickable(false);
loaddata();
}
}
public void onScroll(AbsListView view, int firstVisibleItem,int visibleItemCount, int totalItemCount) {
lvNews.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
}
});
lvNews.setOnRefreshListener(new PullToRefreshListView.OnRefreshListener() {
public void onRefresh() {
STATE = STATE_REFLASH;
loaddata();
}
});
}
ProgressDialog pg;
LinkedList<ShareItem> mShareItem = new LinkedList<ShareItem>();
private TaskAdapter mTaskListener = new TaskAdapter() {
@Override
public String getName() {
// TODO Auto-generated method stub
return null;
}
public void onPreExecute(GenericTask task) {
// TODO 任务开始执行，可提供进度条展现
if (STATE == 0) {
// pg = ProgressDialog
// .show(ShareActivity.this,
// getString(R.string.dialog_tips),
// getString(R.string.loading), true, true,
// cancelListener);
// pg.setCanceledOnTouchOutside(false);
}
}
public void onPostExecute(GenericTask task, TaskResult result) {
if (STATE == 0) {
// pg.dismiss();
// pg = null;
}
//mListView.onRefreshComplete();
//mListView.setIsRefreshable(true);
//mListView.setClickable(true);
// TODO 判断TaskReult的返回值是否ok
if (result == TaskResult.OK) {
/**
if (page == 1 && STATE == 0) {
mShareItem = mLoadDataTask.getShareItem();
lvNewsAdapter.setDataList(mShareItem);
lvNews.setAdapter(lvNewsAdapter);
//mAdapter.setDataList(mShareItem);
//mListView.setAdapter(mAdapter, handler);
load_result = load_fromnetwork_success;
mLoadDataTask = null;
}
**/
if (page == 1) {
//if (!save_local) {
mDb = new ShareItemDb(ShareActivity.this);
//mDb.add(mShareItem);
mDb.add(mLoadDataTask.getShareItem());
mDb.closeDB();
// save_local = true;
//}
}
switch (STATE) {
case STATE_REFLASH:
LinkedList<ShareItem> reflashdata = new LinkedList<ShareItem>();
reflashdata = mLoadDataTask.getShareItem();
//Log.e("reflashdata", String.valueOf(reflashdata.size()));
/**
* Collections.sort(reflashdata, new Comparator<ShareItem>()
* { public int compare(ShareItem arg0, ShareItem arg1) {
* return arg0.getShare_id().compareTo( arg1.getShare_id());
* } });
**/
if (mShareItem.size() > 0) {
mShareItem.clear();
mShareItem.addAll(reflashdata);
ShowToast.showMessage(ShareActivity.this, "更新成功");
/**
int osize = mShareItem.size();
int nsize = reflashdata.size();
Log.e("osize", String.valueOf(osize));
Log.e("nsize", String.valueOf(nsize));
for (int i = 0; i < reflashdata.size(); i++) {
boolean add = false;
String nid = reflashdata.get(i).getShare_id();
Log.e("nid", nid);
for (int j = 0; j < mShareItem.size(); j++) {
String oid = mShareItem.get(j).getShare_id();
Log.e("oid", oid);
if (oid.equals(nid)) {
add = false;
break;
} else {
add = true;
}
}
if (add) {
mShareItem.addFirst(reflashdata.get(i));
}
}
if (osize == mShareItem.size()) {
Toast.makeText(ShareActivity.this, "暂无更新，休息一会儿",
Toast.LENGTH_SHORT).show();
} else {
int updatenum = mShareItem.size() - osize;
Toast.makeText(ShareActivity.this,
"更新了" + updatenum + "条微分享",
Toast.LENGTH_SHORT).show();
}
**/
load_result = load_fromnetwork_success;
} else {
mShareItem.addAll(reflashdata);
//mAdapter.setDataList(mShareItem);
//mListView.setAdapter(mAdapter, handler);
lvNewsAdapter.setDataList(mShareItem);
lvNews.setAdapter(lvNewsAdapter);
load_result = load_fromnetwork_success;
}
// mAdapter.notifyDataSetChanged();
lvNewsAdapter.notifyDataSetChanged();
SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String date=format.format(new Date());
String update = "最近更新:" + StringUtils.friendly_time(date);
lvNews.onRefreshComplete(update);
break;
case STATE_LOADMORE:
LinkedList<ShareItem> loadmoredata = new LinkedList<ShareItem>();
loadmoredata = mLoadDataTask.getShareItem();
/**
* Collections.sort(loadmoredata, new
* Comparator<ShareItem>() { public int compare(ShareItem
* arg0, ShareItem arg1) { return
* arg0.getShare_id().compareTo( arg1.getShare_id()); } });
**/
if (mShareItem.size() > 0) {
int _osize = loadmoredata.size();
int _nsize = mShareItem.size();
//Log.e("_osize", String.valueOf(_osize));
//Log.e("_osize", String.valueOf(_nsize));
for (int i = 0; i < loadmoredata.size(); i++) {
boolean add = false;
String nid = loadmoredata.get(i).getShare_id();
for (int j = 0; j < mShareItem.size(); j++) {
String oid = mShareItem.get(j).getShare_id();
if (oid.equals(nid)) {
add = false;
break;
} else {
add = true;
}
}
if (add) {
mShareItem.addLast(loadmoredata.get(i));
}
}
/**
if (_nsize == mShareItem.size()) {
Toast.makeText(ShareActivity.this, "暂无更多，休息一会儿",
Toast.LENGTH_SHORT).show();
} else {
// "加载了" + loadmorenum + "条微分享"
int loadmorenum = mShareItem.size() - _nsize;
Toast.makeText(ShareActivity.this, "加载成功",
Toast.LENGTH_SHORT).show();
}
**/
load_result = load_fromnetwork_success;
} else {
mShareItem.addAll(loadmoredata);
//mAdapter.setDataList(mShareItem);
//mListView.setAdapter(mAdapter, handler);
lvNewsAdapter.setDataList(mShareItem);
lvNews.setAdapter(lvNewsAdapter);
load_result = load_fromnetwork_success;
}
lvNews.setTag(UIHelper.LISTVIEW_DATA_MORE);
lvNews_foot_more.setText(R.string.load_more);
lvNews_foot_progress.setVisibility(View.GONE);
loadmore_page = loadmore_page + 1;
break;
default:
break;
}
// mAdapter.notifyDataSetChanged();
lvNewsAdapter.notifyDataSetChanged();
mLoadDataTask = null;
} else if (result == TaskResult.FAILED) {
mLoadDataTask = null;
ShowToast.showGetFaile(ShareActivity.this);
} else if (result == TaskResult.IO_ERROR) {
mLoadDataTask = null;
ShowToast.showError(ShareActivity.this);
} else if (result == TaskResult.NO_MORE_DATA) {
mLoadDataTask = null;
ShowToast.showNomoredata(ShareActivity.this);
}
}
public void onProgressUpdate(GenericTask task, Object param) {
// TODO 如果是下载，可在此显示下载进度
}
public void onCancelled(GenericTask task) {
// TODO 后台任务被取消的事件回调，适当情况下可以提示用户，如“下载已取消”
//mListView.onRefreshComplete();
}
};
DialogInterface.OnCancelListener cancelListener = new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface arg0) {
// TODO Auto-generated method stub
clearTask();
}
};
private void clearTask() {
// TODO Auto-generated method stub
if (null != mLoadDataTask
&& mLoadDataTask.getStatus() == GenericTask.Status.RUNNING) {
mLoadDataTask.cancel(true);
mLoadDataTask = null;
}
}
private int reflash_page = 1;
private int loadmore_page = 2;
private int page = 1;
private LinkedList<ShareItem> shareItem = new LinkedList<ShareItem>();
private Page mPage = null;
private String tag = "";
private class LoadDataTask extends GenericTask {
@Override
protected TaskResult _doInBackground(TaskParams... params) {
// TODO Auto-generated method stub
Share share = new Share();
if (mPage == null) {
switch (STATE) {
case 1:
page = reflash_page;
break;
case 2:
page = loadmore_page;
break;
default:
break;
}
share = MzeatApplication.getInstance().getService()
.getShareList(String.valueOf(page),tag);
int code = Integer.valueOf(share.getOpen());
if (code == MzeatService.RESULT_OK) {
shareItem = (LinkedList<ShareItem>) share.getItem();
mPage = (Page) share.getPage();
return TaskResult.OK;
} else if (code == MzeatService.RESULT_FAILE) {
return TaskResult.FAILED;
} else {
return TaskResult.IO_ERROR;
}
} else {
switch (STATE) {
case STATE_REFLASH:
page = reflash_page;
break;
case STATE_LOADMORE:
page = loadmore_page;
break;
default:
break;
}
if (page <= Integer.valueOf(mPage.getPage_total())) {
share = MzeatApplication.getInstance().getService()
.getShareList(String.valueOf(page),tag);
int code = Integer.valueOf(share.getOpen());
if (code == MzeatService.RESULT_OK) {
shareItem = (LinkedList<ShareItem>) share.getItem();
mPage = (Page) share.getPage();
return TaskResult.OK;
} else if (code == MzeatService.RESULT_FAILE) {
return TaskResult.FAILED;
} else {
return TaskResult.IO_ERROR;
}
} else {
return TaskResult.NO_MORE_DATA;
}
}
}
@Override
protected void onCancelled() {
// TODO Auto-generated method stub
//super.onCancelled();
}
private LinkedList<ShareItem> getShareItem() {
return shareItem;
}
}
private void loaddata() {
/**
* 重要！！需要判断当前任务是否正在运行，否则重复执行会出错，典型的场景就是用户点击登录按钮多次
*/
if (null != mLoadDataTask
&& mLoadDataTask.getStatus() == GenericTask.Status.RUNNING)
return;
mLoadDataTask = new LoadDataTask();
mLoadDataTask.setListener(mTaskListener);
try {
mLoadDataTask.execute();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
public class NetworkChange extends ConnectionChangeReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
super.onReceive(context, intent);
if (super.success == true) {
if (load_result != load_fromnetwork_success) {
getOldData();
//loaddata();
STATE = STATE_REFLASH;
lvNews.clickRefresh();
super.success = false;
}
} else {
if (load_result == 0) {
//getOldData();
}
}
}
}
private void getOldData() {
mDb = new ShareItemDb(this);
mShareItem = mDb.getItem();
mDb.closeDB();
if (mShareItem.size() != 0) {
//mAdapter.setDataList(mShareItem);
//mListView.setAdapter(mAdapter, handler);
//mListView.setonRefreshListener(new MyOnRefreshListener());
lvNewsAdapter.setDataList(mShareItem);
lvNews.setAdapter(lvNewsAdapter);
load_result = load_fromdb_success;
}
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
// Log.e("onDestroy()", "onDestroy()");
if (null != mLoadDataTask
&& mLoadDataTask.getStatus() == LoadDataTask.Status.RUNNING) {
mLoadDataTask.cancel(true);
}
super.onDestroy();
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
networkChange = new NetworkChange();
IntentFilter filter = new IntentFilter();
filter.addAction("android.net.conn.CONNECTIVITY_CHANGE");
registerReceiver(networkChange, filter);
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
try {
unregisterReceiver(networkChange);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
public boolean onKeyDown(int keyCode, KeyEvent event) {// 捕捉返回键
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (null != mLoadDataTask) {
mLoadDataTask.cancel(true);
mLoadDataTask.setListener(null);
mLoadDataTask = null;
//mListView.onRefreshComplete();
// mListView.setIsRefreshable(true);
//mListView.setClickable(true);
switch (STATE) {
case STATE_REFLASH:
lvNews.onRefreshComplete();
if (mShareItem.size() == 0) {
finish();
}
break;
case STATE_LOADMORE:
lvNews.setTag(UIHelper.LISTVIEW_DATA_MORE);
lvNews_foot_more.setText(R.string.load_more);
lvNews_foot_progress.setVisibility(View.GONE);
default:
break;
}
return true;
}
}
if (keyCode == KeyEvent.KEYCODE_BACK) {
finish();
return true;
}
return super.onKeyDown(keyCode, event);
}
ListView.OnItemClickListener mItemClickListener = new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
if (CheckNetworkConnection
.checkNetworkConnection(ShareActivity.this)) {
//mListView.setSelected(true);
Intent intent = new Intent(ShareActivity.this,
ShareDetailActivity.class);
intent.putExtra("share_id", mShareItem.get(position - 1)
.getShare_id());
startActivity(intent);
} else {
ShowToast.showToastShort(ShareActivity.this,
R.string.your_network_has_disconnected);
}
}
};
class MyOnRefreshListener implements OnUpdateListListener {
@Override
public void onRefresh() {
STATE = STATE_REFLASH;
//mListView.setIsRefreshable(false);
loaddata();
}
@Override
public void onLoadMore() {
STATE = STATE_LOADMORE;
//mListView.setClickable(false);
loaddata();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == 1) {
STATE = STATE_REFLASH;
//mListView.setIsRefreshable(false);
loaddata();
}
}
}